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Mele20
Premium Member
join:2001-06-05
Hilo, HI

Mele20 to plencnerb

Premium Member

to plencnerb

Re: [WIN8] Hibernation missing?!

That's a good, useful article. Thanks.

Actually, when I first plugged in the UPS to the wall socket, after first plugging in the devices, and booted up the computer, I saw that battery icon in the systray. I had never seen it before. After I installed the CyberPower PowerPanel Personal edition software, that battery icon was replaced with the software icon. I had a lot of trouble with the software display as, like much older software, it is unable to adapt to 125 DPI which I was using. It was in too large font and running off the side and cut off on the bottom and I couldn't enlarge the screen for text on the right that went off the screen or get a scroll bar for the text that was cut off at the bottom. I finally had, last night, to go back to normal Windows DPI but even with increasing font size it was hard to read (damn Segoe font being forced on all users of Windows 8). I finally used the slider and changed the Windows DPI to 107% and that is readable and doesn't mess up the CyberPower software. (But Microsoft really messed up display configuration in Windows 8 compared to all earlier OSes as to change font size for the things you can change it for like "menu", "Palette titles" and a few others and bold them, you have to change one at a time having Windows redo the display each time and reboot each change...cumbersome and time consuming...unlike in earlier Oses where all changes are done one time after you configure Items list. Plus tool tips won't bold like it should). Sigh. This is just one more of so many irritating, messed up things that comprise much of the Windows 8 experience on a desktop.

I was confused by the battery icon because it appeared to be for laptops not desktops so I didn't configure anything there. After reading the article you linked to, I think maybe I should uninstall the CyberPower software so I get the battery icon again and can configure hibernate. Or, I can pull the power plug from the wall and let the battery take over and wait and see what happens...if it hibernates or pops up a notice and asks if I want hibernation enabled on the computer.

I know the article suggests periodically testing the UPS by pulling the plug but the UPS has a self test mode which I already tried. Pulling the plug from the wall to simulate power outage I don't think is a good idea even once because CyberPower says the life of the battery in number of years is dependent on how many times it has intervened and particularly how many times it has had to perform hibernation or shutdown. So, I think I would be better off uninstalling the software to get the battery icon back so I can configure that, or email CyberPower support and ask them about it or call them. I get the impression they don't want support calls unless about warranty problems but I could call and see...they do have a toll free number. I can also ask in the Dell forum as Dell employees recommended this UPS as Dell computers now require pure sine wave UPSes and those are very expensive if from APC but more reasonable in price from CyberPower (still not as reasonably priced as stepped ones that can no longer be used with many Dell computers because of the type of power supply in new Dells). There were power plans that were hidden that I just noticed. There is a Dell power plan that I didn't see when I made my Customized plan. All that I saw was the Microsoft Balanced Plan. The others should have been shown, not hidden, since this computer does not have connected standby.

JALevinworth
@embarqhsd.net

JALevinworth

Anon

Mele, as long as hibernate is not disabled, your UPS software (CyberPanel or PowerChute) will do as you have configured it to when you want it to shutdown (X% percent battery remaining, X minutes, etc., depending on your software). I have both CyberPanel and PowerChute running in an environment I manage and they are very similar.

The windows/OS settings for power management are independent from your UPS software and are there to manage your OS only in it's standard operating environment and not your UPS settings. The reverse is true of your UPS software. It's confusing and it confused me initially too when I first started working with it.

In the windows/OS power settings I have all set to be always on and none set to actually hibernate. The UPS software only requires hibernation be enabled - not that any disk or monitor actually set go to hibernate at any set time period in the windows/OS power settings settings or if the OS senses it's on battery such as a laptop. The UPS software will do it's thing independent of any of this.

BTW, The link in a previous reply refers to the UPS service configuration and although helpful, doesn't apply to CyperPanel or PowerChute either. (I remember when UPS' didn't come with management software, but had a com port serial cable, the windows UPS service was the way to go. Again, this isn't you). Using the UPS software as you are trying to here is a different scenario than using the built in windows UPS service which is not needed to be configured either (and can seriously conflict with your independent UPS software too - learned this one the hard way as a system who I had newly installed UPS software on, someone else had turned on and configured the windows UPS service trying to get this done and the two immediately fought it out with dueling reboot loop sensing no power, although on).

You'll know if hibernate is enabled if hyberfil.sys is in your root (hidden file). That's the hibernate snapshot the UPS software will utilize to resume from in the event your battery time depleted and shuts the system down as you have set in your UPS software to do.

-Jim
JALevinworth

JALevinworth

Anon

correction: hyberfil.sys hiberfil.sys

Also: I hope you had a Merry Christmas, Mele.
Mele20
Premium Member
join:2001-06-05
Hilo, HI

Mele20 to JALevinworth

Premium Member

to JALevinworth
Ahhh.....that makes things much clearer but I am still a bit confused. When I first got a UPS back in 99 with Windows 98SE there was no APC UPS software that I can recall. Then, in 2003, when I got a new computer with XP, and a new APC UPS, I think it came with PowerChute software. I suppose I had no conflict with using PowerChute and XP's UPS power management together because XP recognizes APC UPS specifically ...sort of like how HP has their generic printer drivers as a inherent part of Windows OSes. I suspect that XP would not specifically recognize CyberPower UPS and if I had attached it to the XP computer and was trying to use CyberPower software and XP UPS settings that I might have a conflict like you described with the machine the user had configured the Windows UPS service on.

hyberfil.sys is present on this computer (although I have hidden system files unhidden I still had a heck of a time using search for it...search is awful in Vista, Win 7 and now Win 8. I think I have to install Agent Ransack like I had to on Vista and Win 7 beta I had to get a good, fast search). My concern is that paragraph in CyberPanel that says it will popup and ASK me if I want to hibernate (if hibernation is an option on the machine). The wording is NOT CLEAR what will happen IF the cyberpanel managed shutdown is unattended because I am asleep (I turned off the alarms...although unlike with Powerchute you can't completely turn off the alarms...UGH) or I am away from the house when a power outage occurs. I wanted, and expected, Cyberpanel to seamlessly and SILENTLY put the computer into hibernation in such a situation.

It appears though that this is NOT possible with Cyberpanel. It says I can silence the alarms ONLY until 2 minutes of remaining battery time is reached. Then the critical alarm will sound and cannot be silenced. So, I set it to initiate hibernation at THREE MINUTES and I hope that means no alarm will sound to wake me up. Then I am still confused by that wording in Cyberpanel that says:

"Hibernation Enabling

If the hibernation is supported and is not enabled on your computer, the Enable Hibernation on your computer shortcut will be displayed for users to determine whether to enable hibernation."

So, will I have to CHOOSE to hibernate instead of shutdown? Why can't it do hibernation automatically? PowerChute can. You are saying it WILL hibernate automatically as long as "hyberfil.sys" is there?

A pet peeve of mine with any UPS is the inflated runtime they show when on battery. Cyberpanel says about 50 minutes. In reality, it is more like 5 minutes AT THE MOST. If I have any virtual machines running then there is not enough time to shut them down properly (I guess I could suspend them which would take less time) and then shut the host computer down so I need to use hibernation instead. (Plus, of course, I don't have to hassle with starting the virtual machine(s) again when the power comes back on).

My Christmas was nice, but quiet. Mahalo for the good thoughts. I wish you a Hau'oli Makahiki Hou!

trparky
Premium Member
join:2000-05-24
Cleveland, OH

trparky

Premium Member

Do you use those virtual machines all the time? If not, close them down when you're not using them. They are after all taking up system resources in the host OS robbing it of resources.

JALevinworth
@embarqhsd.net

JALevinworth to Mele20

Anon

to Mele20
said by Mele20:

My concern is that paragraph in CyberPanel that says it will popup and ASK me if I want to hibernate (if hibernation is an option on the machine). The wording is NOT CLEAR what will happen IF the cyberpanel managed shutdown is unattended because I am asleep (I turned off the alarms...although unlike with Powerchute you can't completely turn off the alarms...UGH) or I am away from the house when a power outage occurs. I wanted, and expected, Cyberpanel to seamlessly and SILENTLY put the computer into hibernation in such a situation.

It appears though that this is NOT possible with Cyberpanel. It says I can silence the alarms ONLY until 2 minutes of remaining battery time is reached. Then the critical alarm will sound and cannot be silenced. So, I set it to initiate hibernation at THREE MINUTES and I hope that means no alarm will sound to wake me up. Then I am still confused by that wording in Cyberpanel that says:

"Hibernation Enabling

If the hibernation is supported and is not enabled on your computer, the Enable Hibernation on your computer shortcut will be displayed for users to determine whether to enable hibernation.

The hibernate warning is to inform you if you don't have hibernate enabled on your system which it needs to work properly. If you get this, then hibernate is not enabled and if you do have a shutdown event, then the software will just shutdown your system without saving system settings. That's not the optimum way to go as you can lose data, etc. [Also, some older bios' didn't support hibernate and therefore can't utilize the optimum environment which is with hibernate]

If you are not getting this warning, then you are good to go.

There is a checkbox in the cyperpanel to disable alarms. It's safe to uncheck that. It just will stop the audible alarm, but you'd still get a tray notification when you've been switched to battery power and the status. When it resumes, it will also have a tray notification you had a power event.
said by Mele20:

So, will I have to CHOOSE to hibernate instead of shutdown? Why can't it do hibernation automatically? PowerChute can.

Technically, you don't have much of a choice. It's either have hibernate enabled and the software can do it's optimum thing or it will just shutdown without saving settings if no hibernate is enabled/available.

You are shutting down either way, as there will be a loss of power in the shutdown event. You're not really "hibernating", because OS controlled hibernation still uses a small amount of low level power which will control the bios allowing it wake from hibernation if you were. Instead, the UPS software is utilizing the hibernate utility to take a system snapshot at shutdown to use when power returns.
said by Mele20:

You are saying it WILL hibernate automatically as long as "hyberfil.sys" is there?

As stated above, it's not hibernating, but the UPS software is utilizing the hibernate utility. If you have hibernation available and enabled, then that's set right and hiberfil.sys will be present. If you disable hibernate, the file disappears.

In WIN8 with an admin cmd prompt:
powercfg.exe -h on
powercfg.exe -h off

(Previous OS' it's:
'powercfg.exe /hibernate on'
or off)

You can test that out with those commands if you wish. If you disable hibernate, hiberfil.sys disappears. If you enable again, it re-appears.
said by Mele20:

A pet peeve of mine with any UPS is the inflated runtime they show when on battery. Cyberpanel says about 50 minutes. In reality, it is more like 5 minutes AT THE MOST. If I have any virtual machines running then there is not enough time to shut them down properly (I guess I could suspend them which would take less time) and then shut the host computer down so I need to use hibernation instead. (Plus, of course, I don't have to hassle with starting the virtual machine(s) again when the power comes back on).

The time on battery status is a bit inflated. I found PowerChute's to be more accurate. It's supposed to take your current battery strength minus the draw you have put on it to tell you this number. It's useful in the way that if you added more draw to your UPS, the number will change and you can decide which items are actually necessary to be on UPS over your desire to lengthen time on battery. Also, once you have a baseline time of battery remaining, time on battery will over time decrease (my experience at about 2 years), depending on your battery size and how many events you've had that required recharge. You'll be able to figure on the battery losing it's max life that way albeit slowly at first. No matter the reality of the number accuracy, it's still helpful to baseline at least from it.
said by Mele20:

My Christmas was nice, but quiet. Mahalo for the good thoughts. I wish you a Hau'oli Makahiki Hou!

Hau'oli Makahiki Hou - I love how that sounds. A Hau'oli Makahiki Hou to you too, Mele! Mahalo

-Jim
Mele20
Premium Member
join:2001-06-05
Hilo, HI

Mele20 to trparky

Premium Member

to trparky
said by trparky:

Do you use those virtual machines all the time? If not, close them down when you're not using them. They are after all taking up system resources in the host OS robbing it of resources.

I made sure to get plenty of RAM on this computer so I could easily run virtual machines 24/7. It wasn't easy on XPPro with a motherboard 2GB RAM limit. But I have none running yet on Win 8 because VMWare wants $100 to upgrade my version of Workstation to the latest version which is the only version that will run on Win 8. So, I may try virtual box again eventually...but I don't know if I can convert my XP Pro VMWare Workstation virtual machine to virtual box. Vista UUltimate 64 bit I have never installed. I have Vista 32 bit virtual machine running on the old MS virtual PC from 2007. I can now use the current MS Virtual PC and install Vista Ultimate 64 bit if I want and Vista needs a lot of RAM.
Mele20

1 edit

Mele20 to JALevinworth

Premium Member

to JALevinworth
I'm still confused because power management in XP is excellent and more easy to understand. In Win 8 it is extremely convoluted and I can't understand it. Plus, from Vista on the wording is absurd because wording is only for laptops and I don't have any laptops. What is somewhat confusing though in XP is that I have the setting to NEVER Hibernate in one Power Option but then have the setting to ALWAYS hibernate in another area of Power Options. But XP does try to show you how to set it so that the hard disk is never turned off, hibernation never occurs, or shutdown, during normal electrical power and then another setting for using hibernation ONLY if the electricity goes off. But where are these settings in Win 8?

I use BOTH XP Pro Power Management UPS tabs AND Power Chute. They don't conflict. They work together.

But the software for CyberPower is pitiful and I can't understand it. In XP, I enabled hibernation ONLY DURING POWER OUTAGE in XP not in Power Chute. But I still am not sure how to enable hibernation ONLY for power outage on Windows 8. I can't find any setting for that. I have hibernation DISabled for the hard drive. You said if I have hiberfil.sys that means hibernation is enabled for power outage? That doesn't make sense to me because there should be a SETTING to enable it or disable it not the presence or absence of a file. Requiring running a DOS command to see if it is enabled or not is absurd. Each succeeding OS is supposed to be easier to use not more difficult.

I should not need to use the CyberPower software if I don't like it and the computer should still go into hibernation as it is set to do in Windows....but I can't see how to set this in Windows 8. (I think it does go into hibernation rather than shut down as when my XP computer is turned back on after the power is restored it doesn't boot up ...it resumes from hibernation). This CyperPower has an LCD with about a zillion icons and commands so the software I think is optional. I installed it because I hate icons and I don't like LCD screens either and I found it very difficult to use the LCD to configure it so I installed the software as a workaround. My APC doesn't have an LCD and I like that much better. Who looks at that screen ever anyway? The UPS is not in a place where I can see it without great difficulty and interacting with the LCD is about impossible. That is unneeded "fluff". The software should be better so the fluff is not needed at all.

As for estimated time on battery, the old APC one says it has 92 minutes. That is absurd because the battery is 5.5 years old. The Powerchute software is wrong. This silliness started when I got a new battery 5.5 years ago and APC told me I needed to do a full recalibration of the unit if I wanted the software to correctly reflect the available time it can operate on battery. There are I think I recall 12 steps in a full recalibration and it is not a bit fun to do and takes many hours. I did it though and the software was accurate again for a short while and then went wacky again and I just left it that way. APC said I should have not replaced the battery but bought a new unit but the until was only 3 years old when I had to replace the battery (we had lots of power outages back then).

My XP computer went on battery for 5 seconds on Christmas morning (while I was sleeping) due to electrical noise. The Win 8 computer did NOT go on battery at that time. My XP computer goes on battery usually 3-6 times each month due to electrical noise. Seems to me the Cyberpower should go on battery at the same time. I'm wondering if I should try and return it if it is not going to intervene when there is electrical noise which I have quite a bit of on this line.

JALevinworth
@embarqhsd.net

JALevinworth

Anon

said by Mele20:

I'm still confused because power management in XP is excellent and more easy to understand. In Win 8 it is extremely convoluted and I can't understand it. Plus, from Vista on the wording is absurd because wording is only for laptops and I don't have any laptops.

I'm confused too because I thought you were trying to get CyberPanel going on Windows 8, and couldn't find the hibernate control on it. Everything I have stated is to help you specifically with that task. I'll do my best to modify where it applies to XP here.
said by Mele20:

What is somewhat confusing though in XP is that I have the setting to NEVER Hibernate in one Power Option but then have the setting to ALWAYS hibernate in another area of Power Options. But XP does try to show you how to set it so that the hard disk is never turned off, hibernation never occurs, or shutdown, during normal electrical power and then another setting for using hibernation ONLY if the electricity goes off.

As stated before, and it still applies here..
THIS Screen [Power Schemes] controls the OS (in an idle state/with power):
»/r0/do ··· 7001.png

And that has nothing to do with with THIS screen [UPS] controlling a power outage event:
»/r0/do ··· 2001.png

And THIS Screen [Hibernate] allows you to turn on or off the hibernation ability separate from both:

»/r0/do ··· 5001.png

So to answer your question, you can have everything in [Power Schemes] turned to always on and have NEVER as your time out when your OS (or anything) idles, but still have hibernation enabled in the [Hibernate] tab, and still can manage your UPS settings too. The three control 3 different activities that are separate from each other.

If you were to go to the [Hibernate] tab and uncheck enable hibernation, and then go back to the [Power Schemes] tab, you will notice that the "System Hibernates" option and drop down to set the time out, has disappeared. That's because you disabled the use of the hibernation utility in the [Hibernate] tab and therefore it is no longer available to use as part of your OS idle power scheme also.
said by Mele20:

But where are these settings in Win 8?

Which ones? In WIN8 you are trying to use CyberPanel and activate hibernation; now you are talking about WINXP and the UPS service and PowerChute. Do you have a serial cable hooked up and controlling your UPS on the WIN8 machine? All you need for your WIN8 machine to get your CyberPanel software to use it's full capability (or the XP with PowerChute too for that matter) is to have hibernation enabled. You did that already.
said by Mele20:

I use BOTH XP Pro Power Management UPS tabs AND Power Chute. They don't conflict. They work together.

I am going to warn you about this again. Doing this is like having 2 anti-virus software running at the same time. They will fight it out when the condition exists for either to do their thing. Who wins? Will one interfere with the other doing it's thing properly and then neither complete their task? Yes/No/Maybe. Just because you have them both running doesn't mean it's going to work properly. The Windows UPS service set to APC/BackUPS (not PRO) is not going to warn you of an electrical noise event or an under-voltage or over-voltage. It's only going to control when your system has switched from AC power to UPS power and what to do when the battery is running out. The switch over due to electrical noise and the information you got that it did was because you looked at your PowerChute software. That is not a UPS service activity.

What is going to happen when your do have a full power outage and your battery depletes and has to shut down? I don't know which service is going to control this, the PowerChute or the Windows UPS service and neither do you. If you want your system settings saved before shutdown, then the PowerChute is the way to go because it has that ability with using the hibernate utility to take a system snapshot first to use when power resumes. If you don't care and just want it to boot down as is no matter what is running, than use your UPS service. Only if you have a serial cable, though - because UPS service is doing squat if you don't with the standard APC ups hooked up that you do as it would ask you for a com port too. You can't even tell how much battery remaining or it's condition because that's grayed out for you in the UPS service window on the [UPS] tab. Why? Because you don't have smart signalling with a the basic APC ups using the windows UPS service (or it's not really hooked up to a serial cable). If you had the UPS Pro, you'd have those options available. You have PowerChute, use it ALONE - it has everything you need, tells you of voltage and noise events, etc. Also, make sure you have the latest version from the UPS site.
said by Mele20:

But the software for CyberPower is pitiful and I can't understand it.

You're back to the WIN8 Machine here - Then you'll have to go buy something else. CyberPower, although IMHO think PowerChute is much better, is meant to be simple. Just make sure your system has hibernation enabled, customize your settings, and that's it. Forget about what you have available in another OS and another software.
said by Mele20:

In XP, I enabled hibernation ONLY DURING POWER OUTAGE in XP not in Power Chute. But I still am not sure how to enable hibernation ONLY for power outage on Windows 8. I can't find any setting for that. I have hibernation DISabled for the hard drive.

Again - for both XP and WIN8 or any OS in between, the power settings, as in your XP example for [Power Schemes], those have nothing to do with controlling your UPS. They are for controlling your OS in an idle state *when you have power*. Even if you set a timeout for your PC to go to hibernation in your [Power Schemes], it still maintains a trickle amount of power to resume from when you wake it (WAKE on LAN via the NIC or WAKE on MOUSE/KEYBOARD). *This is not a power absence state* and has nothing to do with the UPS when you do have a power absence state. Also any mention of battery in this section [Power Schemes] when available, refers to laptops only. Do not confuse this, or any help section about it, with UPS battery time, it has nothing to do with it. .

When you say, "I have hibernation disabled for the hard drive", there is no hibernation for the hard drive setting. There is power down in the Power Schemes for the hard drive, and a time to set to when you want this to happen *when you have power* and you've reached an idle-time out. This is not hibernation. Allowing your system to hibernate controls your OS, your NIC, your monitor, etc., not just your hard-drive. When you do have power, and your OS does idle and times out per what you set, and you do want it to hibernate, it will take a system snapshot before powering down, BUT the BIOS still has trickle power to wake the system when you re-activate it. Again, this has nothing to do with controlling your system in a *power outage*.

Mele, all you need to understand here is that for both XP and WIN8, and for both PowerChute and CyberPanel, you have to have hibernation enabled on your machine. That's it. Forget about power schemes controlling the idle state with power on and all those settings with it. Make sure hibernation is enabled on both, period, no matter what you have set in your power schemes for the OS idle state with power. For XP, click enable hibernation. For WIN8, you can activate the hibernate button as you already did in the advanced options. Win8 uses the hybrid sleep as default (which is supposedly faster than plain ole hibernation), and it's not clear to me if showing the hibernate button enables it or just technically shows it or not. My understanding is that hibernate is actually already active as part of hybrid sleep, but either way you can be sure if that's active if hiberfil.sys is present, which you did.
said by Mele20:

You said if I have hiberfil.sys that means hibernation is enabled for power outage? That doesn't make sense to me because there should be a SETTING to enable it or disable it not the presence or absence of a file. Requiring running a DOS command to see if it is enabled or not is absurd. Each succeeding OS is supposed to be easier to use not more difficult.

Sorry I confused you here, Mele, but I introduced the hiberfil.sys and command line arguments to the discussion. Those aren't something people are expected to look for or use to manage these settings. A while back I had realized I had this hidden hiberfil.sys file and investigated it and figured out where it came from and what it did on my own. I thought it would be helpful to you to 1) ease your mind that hibernation is actually enabled if present; 2) using command lines you can personally see the file be written and removed per your actions enabling hibernation and also see how your settings in your power options change or not when you do. Only settings available to you are displayed in your power options control panel so if it's disabled, they would be missing.

IMHO setting this all up is easier if you don't go messing around with all this other stuff, such as turning on XP UPS service and trying to make that work too because you like those options better and icon size is more pleasing to you. All you really needed to do is make sure hibernation is on and follow the instructions in the software, which only has like 3 settings you can manage. The manual did tell you that you would get a pop-up if hibernation wasn't sensed and you didn't. Honestly, it was easy - you just wanted it to do and try more to your individual satisfaction. Straight up, it would have been install and that's it. You can customize those handful of preferences or you could have went default all the way... and it would run.
said by Mele20:

[snip]
As for estimated time on battery, the old APC one says it has 92 minutes. That is absurd because the battery is 5.5 years old. The Powerchute software is wrong. This silliness started when I got a new battery 5.5 years ago and APC told me I needed to do a full recalibration of the unit if I wanted the software to correctly reflect the available time it can operate on battery. There are I think I recall 12 steps in a full recalibration and it is not a bit fun to do and takes many hours. I did it though and the software was accurate again for a short while and then went wacky again and I just left it that way. APC said I should have not replaced the battery but bought a new unit but the until was only 3 years old when I had to replace the battery (we had lots of power outages back then).

You have not said what size battery you have, but I can bet you've probably outlived the recommended replacement age and then some. Since I know you are using Back UPS and not Back UPS Pro on one, and CyberPanel on another, those are most likely the personal editions and not business/pro ones.. therefore your expected life span is more like 2-3 years on those smaller batteries. Your using a battery that's 5.5 years old on that one. You really can't expect the software to give you an accurate calibration time. The reason these need to be replaced once the manufacturer expected lifespan has been exceeded is that you can't rely on them. You are no longer warranted past that for any outage incidents. If you want to push it past that, then your results cannot be guaranteed and is at your own risk. You have to live with your decision to use these past their recommended lifespan and not expect accurate results. It is the way it is.
said by Mele20:

My XP computer went on battery for 5 seconds on Christmas morning (while I was sleeping) due to electrical noise. The Win 8 computer did NOT go on battery at that time. My XP computer goes on battery usually 3-6 times each month due to electrical noise. Seems to me the Cyberpower should go on battery at the same time. I'm wondering if I should try and return it if it is not going to intervene when there is electrical noise which I have quite a bit of on this line.

Unless you are plugged into the exact plug, which you can't be, you can't measure why one system on one plug did one thing, and another system on another plug did another thing. That's aside the obvious that you have 2 different operating systems, 2 different UPS batteries of different ages, 2 different UPS software brands running them, and 1 also has the windows UPS service running too. There is different wiring for each plug and possibly different draw on those circuits at any given time.

I have systems right next to each other that are using the same exact set-ups (not like you do) and one goes from AC power to UPS on occasion because of noise and the other doesn't at that moment. One time it turned out it was because of another draw dimmed the power on that circuit (A/C cycling that someone turned on), but didn't effect the other system right next to it which turned out to be wired to another circuit. Another issue I had turned out we had a mice problem chewing wires and had to have an electrician replace the wires.

-Jim
2012-12-28 12:52:53

PS: I'm on vacation and don't know if I'll be back to this thread at any known time at this point. Might be heading out yonder through the weekend. Good luck with all this!