I've never attempted Overclocking before so today I decided I wanted to go for it.
I have a Sandy Bridge i7 2600k, and I'm wondering what temperature I would want it at. Doing some research I found that 90 degrees (C) is about the limit before frying the CPU. Currently I have it clocked in at ~4.8 Ghz but it climbs to about 85 degrees after a while of running prime95.
I have no idea what I'm doing so I'm as long as I know a safe temperature range then I'll try to keep it within the limits. :v:
Also, if someone could shed some light on all this BCLK Freq, CPU voltage and DDR voltage shit is that would be helpful :D
85 is pretty dangerous, even when using Prime95. Most applications won't bring the CPU up so high, but it's still not a good temperature.
What cooler are you using, and if it's an aftermarket cooler, did you apply thermal paste properly?
[editline]19th October 2011[/editline]
Try to stick to below 70 degrees.
Don't be silly the i7 can handle temps up to 200c easily that should be your target range
Do not go above 72C.
if you do get a bucket of water and douse those flames out !
Clock speed isn't the only thing you should care about on a CPU
4.8GHz is great and you probably won't be able to squeeze much more out of it without damaging it
If you can afford better cooling, then do it. If not, just leave it alone
[QUOTE]What cooler are you using, and if it's an aftermarket cooler, did you apply thermal paste properly?[/QUOTE]
Yeah I'm using an after market cooler it is a Cooler Master V8 RR-UV8-XBU1-GP.
I've lowered the clock speed to 4.4 Ghz, which doesn't go above 70 degrees with prime 95. I tried running crysis 2 on my 4.8 Ghz configuration and it kept lockingup/bluescreening so I thought I should turn it down. The configuration I have it at now seems to work good.
I guess I need to look into a better cooler.
[QUOTE=thisBrad;32859681]Yeah I'm using an after market cooler it is a Cooler Master V8 RR-UV8-XBU1-GP.
I've lowered the clock speed to 4.4 Ghz, which doesn't go above 70 degrees with prime 95. I tried running crysis 2 on my 4.8 Ghz configuration and it kept lockingup/bluescreening so I thought I should turn it down. The configuration I have it at now seems to work good.
I guess I need to look into a better cooler.[/QUOTE] prime95 should be stableb for 24 hours before id consider it stable.
And several intelburntest runs.
[editline]19th October 2011[/editline]
One thing about intelburntest though: watch the temps. It WILL get a bit crispier than when stressed with prime.
[editline]19th October 2011[/editline]
Like, a 10 degrees difference.
If you're still having trouble, try reapplying thermal paste. Those CPUs should be able to handle a 4.4GHz overclock well. Especially if you can boot into Windows and run prime95 on 4.8.
[url=http://benchmarkreviews.com/index.php?option=com_content&task=view&id=170&Itemid=1]Make sure you're doing it right.[/url]
Remember that the temperature is based on voltage, not clock speed. Before lowering your clock speed, lower your voltage a bit. Lower it bit by bit until you start getting BSODs during testing, then up the voltage a little.
You would be surprised how many people pump way more voltage into there processors than they need. The new i7s are VERY power efficient, so it doesn't take much. I'm running mine at 4.7 on nearly stock voltage, I believe I'm only .15 volts over stock.
[QUOTE=Tiersin;32865562]Remember that the temperature is based on voltage, not clock speed. Before lowering your clock speed, lower your voltage a bit. Lower it bit by bit until you start getting BSODs during testing, then up the voltage a little.
You would be surprised how many people pump way more voltage into there processors than they need. The new i7s are VERY power efficient, so it doesn't take much. I'm running mine at 4.7 on nearly stock voltage, I believe I'm only .15 volts over stock.[/QUOTE]Actually, it's based on both. higher clock speed will increase the temperature somewhat, but voltage does have a more major factor in it.
[QUOTE]If you're still having trouble, try reapplying thermal paste. Those CPUs should be able to handle a 4.4GHz overclock well. Especially if you can boot into Windows and run prime95 on 4.8.
[/QUOTE]
My computer seems to be stable on 4.4 Ghz. 4.8 ended up BSODing when it game to practical usage such as gaming.
I should play around with the voltage a bit. Are there any damage risks if the voltage is too low? Or will it simply BSOD?
[QUOTE=thisBrad;32865974]My computer seems to be stable on 4.4 Ghz. 4.8 ended up BSODing when it game to practical usage such as gaming.
I should play around with the voltage a bit. Are there any damage risks if the voltage is too low? Or will it simply BSOD?[/QUOTE]
There's generally no risks. The comp will either BSOD, not boot in, or it won't even hit the POST.
[QUOTE=taipan;32860258]prime95 should be stableb for 24 hours before id consider it stable.[/QUOTE]
24 hours is too long and most people don't have that kind of patience. In my experiance, 3 hours is more than enough. You'll know if the clock speed is unstable for your tasks later down the road.
[QUOTE=B!N4RY;32886502]24 hours is too long and most people don't have that kind of patience. In my experiance, 3 hours is more than enough. You'll know if the clock speed is unstable for your tasks later down the road.[/QUOTE]When I was testing my system, I did a 1 hour test, then left it running overnight.
If you need a better cooler the hyper 212 or the corsair a70 are both great choices for a tight budget. I use the A70 and it brought my temperatures down from about 69-75° C when running prime95 on stock cooler and stock clocks (about 5 hours of runtime) to near 40-50° with the A70. With overclock it hits 66° C now and that's at 4.6 ghz on the I5 2500k.
Also to not fry your chip, stay below 1.5V (check that with cpu-z). Over 1.4V is too much for daily use, so create a stable overclock underneath like 1.42 volts. Mine maxes out at 1.38v with 4.6 ghz.
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