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Evil Furby

join:2002-03-08
Houston, TX

Newbie to Overclocking....

I've built many computers in the past, but I've never really been big into OCing. I'll OC my video cards and CPU slightly, but I've never been an avid OCer. Anyways, here is the system I'm preparing to build...

Tower COOLER MASTER HAF 932 Advanced RC-932-KKN5-GP $140.00 »www.newegg.com/Product/Product.a ··· 11119160
Blu-ray LG Black 12X BD-R 2X BD-RE 16X DVD+R $80.00 »www.newegg.com/Product/Product.a ··· WH12LS30
MOBO ASRock Z68 Extreme4 LGA 1155 Intel Z68 $185.00 »www.newegg.com/Product/Product.a ··· 13157250
CPU Intel Core i7-2600K Sandy Bridge 3.4GH $315.00 »www.newegg.com/Product/Product.a ··· 19115070
Heatsink Corsair CWCH50-1 (water cooler) $71.00 »www.newegg.com/Product/Product.a ··· 35181010
Hard Drive SAMSUNG Spinpoint F3 HD103SJ 1TB $60.00 »www.newegg.com/Product/Product.a ··· =HD103SJ
Ram G.SKILL Ripjaws X Series 8GB $70.00 »www.newegg.com/Product/Product.a ··· 8D-8GBXM
Power Supply PC Power and Cooling Silencer Mk II 950W High $115.00 »www.newegg.com/Product/Product.a ··· 17703028
Speakers Logitech S-220 17 Watts 2.1 Multimedia Speaker System $29.00 »www.newegg.com/Product/Product.a ··· 36121014
Video Card SAPPHIRE 100311-2SR Radeon HD 6970 (x2) $680.00 »www.newegg.com/Product/Product.a ··· 14102918
SSD Hard Drive SAMSUNG 470 Series MZ-5PA128 $200.00 »www.newegg.com/Product/Product.a ··· 20147063
Monitors ASUS VE247H Black 23.6" $480 »www.newegg.com/Product/Product.a ··· 24236112
DVI Adapter Accell B087B-006B UltraAV Mini DisplayPort $32 »www.amazon.com/Accell-B087B-006B ··· 04071ZXA

From what I've read, I should be able to OC my CPU to around 4.5ghz pretty easily, but my question is, how do i know when I need to adjust my CPU Frequency instead of the multiplier and vice versa. Also, when do I need to increase the CPU voltage? Can someone give me a basic run down of the fundamentals? I'm dropping a lot on this PC, so I want to ensure my CPU doesn't bottleneck my GPUs much.


bobbagels
Just Another Scorpion Mechwarrior
Premium
join:2000-11-15
Matawan, NJ
kudos:2
Hello,
I have a machine very very close to your specs.

Case-Cooler master HAF x
MB-Asus P8p67 Evo
Processor- I7 2600K Sandy Bridge
PS- Corsair HX 1000W
CPU Cooling- Noctura NH-Di4
HD#1- Crucial SSD c300 Sata III 128 Mb
HD#2- WD raptor 1000 RBM Sata III 600 Mb
Memory- GSkill Ripjaws X 8Gb
VC- EVGA SuperClocked GTX 580
Media- LiteOn B/D W
Media- LiteOn DVD W
Sound- creative SB Titanium pro
OS- Win7 64 Bit
Monitor- Samsung LED PX2370

Overclocked to 4.5 for 24/7 use using an offset voltage of + 0.60 (this after many trial and error profiles) temps max out to 65 under prime full load. (on air, Noctua ND14) Load Line Calibration- regular

I would suggest using this simple guide first
»www.clunk.org.uk/forums/overcloc ··· ers.html
Then after you are stable start testing with offset voltages. (thats the way to go IMO)
--
Last night I saw a naked cowgirl, she was floatin across the ceilin

Evil Furby

join:2002-03-08
Houston, TX
Thanks a lot man, that guide is awesome. I can't wait for my parts to arrive now.


MOARPOWA

@optonline.net
reply to Evil Furby
While your specs are not set in stone yet (I hope =p )

On the new intel CPU's you do not change the baseclock (think old FSB) but rather all overclocking is done via the multi. So you will do nothing but up the multi. The muti will change your CPU frequency (I think you ment FSB maybe?) If you are lazy (like myself) set 4.5 (or whatever you want to hit) up your voltage (google some overclocks or check overclock.net they should have a page full of XXX cpu speeds and stable voltages) set a voltage... boot into windows... Stress test...

Fail... work on upping your vcore, or maybe other voltages (depends it is all trail and error, the BSOD codes can help you know what voltage needs tweaking)

Now if you want to hit a good OC... on air... I'd look maybe into a better cooler... I'd also think about a 2500k... but I've posted that in the other thread =p

Blah I left out in my other post the PSU is kinda large... 750 would be more than fine.

Evil Furby

join:2002-03-08
Houston, TX
reply to Evil Furby
Here is the system I just ordered....

Component Details Price Link
Tower: COOLER MASTER HAF 932 Advanced RC-932-KKN5-GP $159.99 »www.newegg.com/Product/Product.a ··· 11119160
Blu-ray: LG Black 12X BD-R 2X BD-RE 16X DVD+R $79.99 »www.newegg.com/Product/Product.a ··· WH12LS30
MOBO: ASUS P8P67 DELUXE  $219.99 »www.newegg.com/Product/Product.a ··· 13131701
CPU: Intel Core i5-2500K Sandy Bridge 3.3GHz $204.00 »www.starmicroinc.net/product/I5- ··· OEM-CPU/
HEATSINK: CORSAIR H80  $91.99 »www.newegg.com/Product/Product.a ··· 35181016
HARD DRIVE: SAMSUNG Spinpoint F3 HD103SJ 1TB $59.99 »www.newegg.com/Product/Product.a ··· =HD103SJ
RAM: G.SKILL Ripjaws X Series 8GB $69.99 »www.newegg.com/Product/Product.a ··· 8D-8GBXM
PSU: COOLER MASTER Silent Pro RSA00-AMBAJ3-US 1000W $169.99 »www.newegg.com/Product/Product.a ··· 17171049
SPEAKERS: Logitech S-220 17 Watts 2.1 Multimedia Speaker System $28.99 »www.newegg.com/Product/Product.a ··· 36121014
VIDEO CARDS: SAPPHIRE 100311-2SR Radeon HD 6970 (x2) $719.98 »www.newegg.com/Product/Product.a ··· 14102918
SSD HARD DRIVE: OCZ Vertex 3 VTX3-25SAT3-120G 2.5" 120GB SATA $219.99 »www.newegg.com/Product/Product.a ··· 20227706
MONITORS: ASUS VE247H Black 23.6" (x3) $569.97 »www.newegg.com/Product/Product.a ··· 24236112
DVI Adapter Accell B087B-006B UltraAV Mini DisplayPort $28.00 »www.amazon.com/Accell-B087B-006B ··· 04071ZXA
SOUND CARD: ASUS XONAR_DG 5.1 Channels PCI Interface Xonar DG $26.00 »www.newegg.com/Product/Product.a ··· 29132020
SUBTOTAL $2,648.86
Rebates/Promo codes $220.00
TOTAL $2,428.86

From what I've read, assuming my cooling is adequately installed, I should be able to OC to around 5ghz with the 2500k. I didn't think it was worth an extra $95 for a 1-2% performance gain for the 2600k. Not to mention, in some games the 2500k actually out performs the 2600k.


Nanoprobe
Looking for cures in memory of Mom
Premium
join:2003-05-11
Crab Nebula
kudos:2
Reviews:
·magicjack.com
·Skype
Just an FYI. Only about the top 10-15% of chips will reach a stable 5GHz. overclock so don't set yourself up for disappointment if you don't get there. 4.5 Ghz. should be no sweat and you probably won't get any noticeable gaming performance improvement if you get stable @ 5 GHz. anyway. Good luck.


jsimmons
Premium,MVM
join:2000-04-24
Falls Church, VA

2 edits
reply to Evil Furby
Not as related to overclocking... But spend some time in the OCZ forums about the Vertex3 and other Sandforce 2200 based SSD's... Lots of stability problems and tricky to get them resolved - specially if overclocking.

That said, I have a P67 based system with i7 2600K @ 4.5 Ghz overclock using a Vertex3/120 as the boot drive. Getting the correct firmware on the SSD, the correct BIOS on the Mobo, and the right AHCI settings and drivers is critical to getting a stable running system. Do some reading and if this is your first build using a SSD as your system disk start reading up BEFORE you begin installing your OS (Assumed to be Windows 7 / 64) given your hardware selection.

I second what nano says above too! A 4.5-4.7 GHz overclock can be easily had with a $25 Coolermaster H212+ heatsink. These Sandybridge builds run very cool anyway - so no need for really exotic CPU cooling solutions. Well ventilated case and Air cooled CPU is all you need. Of course cooling the GPU's is a different story.

Good luck.
--
"Everything should be made as simple as possible, but not one bit simpler."
- Albert Einstein

prestero

join:2011-09-09
reply to Evil Furby
I wouldn't overclock just yet, don't see it necessary unless you are rendering and stuff like that which requires massive amounts of CPU power I doubt any games will gain performance from sandy bridge CPU's when overclocked....I don't think they reach their limit, from todays games....


jsimmons
Premium,MVM
join:2000-04-24
Falls Church, VA
Pushing a i7-2600K to 4.5 Ghz is such a no-brainer if you have a decent motherboard, stable power supply, and slightly better heatsink (air) than intel supplies. Since the CPU, with standard power management settings, only runs at MAX throttle when it's doing "real" work, you never really stress the thermal limits of the processor. I do however notice a difference between running it at stock (3.4 Ghz) vs. 4.5 Ghz. - even in normal non-gaming situations.
--
"Everything should be made as simple as possible, but not one bit simpler."- Albert Einstein

matt5

join:2001-10-06
Lagrangeville, NY
reply to prestero
Psh fire up world of tanks and tell me it does not want clock speed. If you can run good settings and not peg a core do tell me what you are using as omg do want. Need a stable 60FPS to count... no drops to 30 (as I get running 4.0 875k)

Evil Furby

join:2002-03-08
Houston, TX
reply to Evil Furby
Update: So I appear to have reached 4.8ghz stable using the Corsair H100. I've been playing games ect...for the past week w/no crashing issues, although I get this one core error when I run prime 95. I think it may be ram related, but until I see a blue screen or hard crash I'm not going to worry about it. My CPU temps don't even top 61c when running Prime 95. I'd feel more comfortable if i could get through the full prime95 sequence without getting that weird error in the program, but whatever.


notstable

@optonline.net
If a core errors out you aint stable... and if it is the same core always it aint the ram it's the core crapping out...

But if if you want to go "stable enough" vs stable... your choice.

You also don't need to get a BSOD to have errors... think about it you did not BSOD on prime... you might just get programs that lock up or error out silently...

Likely need a little more vcore.


jsimmons
Premium,MVM
join:2000-04-24
Falls Church, VA
reply to Evil Furby
And it may not be a core issue at all... It could be the onboard L1, L2, or L3 cache if not your RAM. If you cannot get through prime95 without errors, you are not really stable. To max out the CPU, you'll need to make sure you are running 4 threads in prime95 - thus maxing all 4 cores.

Another good way to ensure this is to use »www.softpedia.com/get/System/Ben ··· st.shtml and select a high stress configuration (lots of memory) with Threads set to 4. On a i7-2600K (with hyperthreading, I find I need to set threads to at least 6) to peg the CPU's at 100% load.

This is a very stressful test - far more stressful than anything you'll likely throw at it in real use. But if it will pass 5 or more iterations, you can be very confident in your setup.
--
"Everything should be made as simple as possible, but not one bit simpler."- Albert Einstein


icanhazmath

@optonline.net
Um...... 8 threads for a 2600k... that has 8 threads... how can you max the CPU out with 6... lol 6 = 8? HAI can I haz change for 6$.

P95 on SB cpus are blend for most usage last time I checked (unlike older cpus that was small ffts for max cpu testing)

IBT... 5 runs? Please... on OCN to get in any "stable" thing they require at LEAST 20 at max ram in IBT... 5 is nothing... I do 50 +... myself.


Cake
Premium
join:2009-09-29
united state
reply to Evil Furby
I am SUPER new myself.

I have an OEM 2600K that was supposed to be factory overclocked to 4.1, however it is not. The company basically told me to "google it."

But here is the issue, I read the guide here and it seems mine will only go to 39 (3.9) with the factory bios.

I just game and fraps, so if I can't change it past 3.9....I don't think it would really matter. (though I still intend to address it with the company)

But I want to at least have a little clue before I call them again on what my options may be on my end...


Airwolf
Premium
join:2001-10-30
Windsor, ON
Reviews:
·Cogeco Cable
I have not heard a factory overclocked CPUs nor seen this in practice.
Essentially, you'd be getting a faster clocked CPU, not necessarily overclocked.

If you purchased a pre-built computer that's supposed to be overclocked if that's what you paid for, then I'd keep bugging them until you get what you paid for.

Otherwise, the CPU has a unlocked multiplier to tinker with.


lazynamehere

@optonline.net

1 edit
reply to Cake


Companies will offer factory overclocked CPU's... why not? I think dell (not alienware but maybe it was them, ya still a dell but I meant the name) had factory OC systems being sold... you look at anyone like ibuypower etc they all offer it...


Airwolf
Premium
join:2001-10-30
Windsor, ON
Reviews:
·Cogeco Cable
said by lazynamehere :

Companies will offer factory overclocked CPU's... why not? I think dell (not alienware but maybe it was them, ya still a dell but I meant the name) had factory OC systems being sold... you look at anyone like ibuypower etc they all offer it...

Obviously, but the poster said CPU. Were they referring to a whole computer? I don't know. If it was, then yes you can buy them already overclocked as I stated above.
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