snipper_cr
join:2002-01-22
Wheaton, IL
clubs:
| [Temps] What would cause a gradual increase in temp?
I want to brain storm this idea with you folks.
Over the summer, I took out the water cooling system in my system and replaced it with a air cool system. Reason was I was moving down to my school and would be away from all my tools and stuff. So in the event I had a major water cooling problem, I would be hard pressed for repair equipment. Air cooling seemed to require the least amount of maintenance (and has proven right so far).
Anyways, when I first started here, my CPU would operate full load between 61-62 degrees C (see below for CPU type, you'll see thats acceptable). However, as the year went on the temp would get higher and higher (over the course of weeks and months) until full loads were around 65-66 degrees. I attributed it to dust build up on the heat sink, fans, and intakes as there was clearly some forming. Not too much but still more than I normally would allow (no compressed air so I couldnt clean it).
Anways, I brought it home over the winter holidays and dusted the heck out of it with compressed air, and removing components (but never removing heatsinks). However, I get exactly the same temperature readings! Only problem is... full load continues to get hotter. I dropped the core multiplier from 17x to 14x dropping the CPU speed from 3.4ghz to 2.8 ghz. This lowered the temp a little. However, as weeks went on the temp got up there again.
I thought maybe room temp but our rooms here are kept at the exact same temp almost all day (thermometer in the room). Any thoughts? This summer I will be putting the water cooling back on it.
P4 3.4 Ghz "Prescot" (yes, heat devils) 14/17 multipliers
Asus P4C800-E Dlx
Some big heatsink with a 120mm fan... guess I dont remember but it did/does(?) the job.
Yeah, i know shes an oldy but thats what Ive got.
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DreamCarr
Percussion
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join:2001-04-16
6D 6F 6F 00 | what kind of TIM are you using? I know the old rule of thumb was to replace your AS3 every 6-9 months IIRC. |
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signmeuptoo
Mike Bloomberg 4 President
Premium
join:2001-11-22
Tardis in TN
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| reply to snipper_cr
I have found that Arctic Silver Ceramique seems to dry up and lose its ability over time, are you using ASC? AS5 is a little more permanent, but also should get changed over time.
I currently am using Coollaboratories Liquid Pro Liquid Metal TIM and it is supposed to last a long time, though I have found that even IT dries up somehow, though it certainly holds out better (never use it with aluminum as it reacts to it making a mush).
snipper: It *is* getting warmer, so I would think that as the weather gets warmer you will see more heat.
Could your fan be getting slower I wonder, due to age or due to lower voltages from your power supply...
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snipper_cr
join:2002-01-22
Wheaton, IL
clubs:
| reply to snipper_cr
I think I am using AS5 because I knew it would on for up to a year. AFAIK, AS5 should last a couple of years. Even if I did use ASC (ill check this summer when I rebuild it) that should last a couple of years.
Yeah it is getting warmer (although last night low of 32) but as I said... this was a general trend over the course of a year... and I am pretty sure the temp in my room was fairly constant based on my thermometer readings.
And as far as fan, that is a definite possibility although I have no way of knowing. I really do not remember what my fan RPM was when I first built this system so I cant say for sure. I remember that it was always in low to middle 1XXX speeds that thats where it is now. So The most it could have changed is 200-300 rpm... That may be enough to make a difference, I dont know.
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Serenity Day - June 23rd 2006. You Can't Stop the Signal |
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eX_NihiLo
Here's Your Something For Nothing
Premium
join:2003-08-05
Louisville, CO | reply to snipper_cr
I'd re-apply the TIM and inspect the IHS/HSF surfaces. Perhaps the TIM is having to fill in too large a gap in places and thus when it ages small air pockets are forming reducing the cooling efficiency over time. |
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