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i7 875k temps

post #1 of 15
Thread Starter 
hi i just got a new liquid cooling kit and was doing some testing im running at 3.88ghz fixed voltage is 1.275 everything else is auto multi is 29 blk is 133 ht is on and c1E and some other features, my cores idle around 27 degrees celcius with core 1 at about 30-31 which is normal, running occt with large data set and high priority core 1 peaks at 85 the rest peak around 82 does anyone have some ideas? it runs stable and doesnt get that hot when i play games but ive seen ppl with this chip with way higher clock speeds and lower temps with air cooling, i only have a cpu block everything else is air cooled
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Kevins-beast
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post #2 of 15
what type of liquid cooling do you have?? 85 degrees is pretty hot at that voltage, especially on liquid cooling..but I could be wrong =P!
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post #3 of 15
Thread Starter 
its a tt bigwater 760i its cooler than my old $60 air cooler
Kevins-beast
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post #4 of 15
Thread Starter 
ok i made a few modifications to my thermal take bigwater and its working better currently stress testing at 4.03ghz 134x30 with 1.33v looks like its working stable and staying below 85 degrees
Kevins-beast
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post #5 of 15
It may be just me but those temps see way too high.
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post #6 of 15
I have the same chip and yes they are burners - I can believe those temps for that water cooler. If you don't run that hot in general (Say 75 C Max On Any Core) then you are probably OK.

I am not real familiar with the Thermal Take unit you have but in general a single 120mm x 120mm x 25mm radiator will get you cooling comparable to a top end air cooler. I would "bet" the pump and reservoir could handle another radiator though - you could drop another 10C if you could do that. If you do remember it's aluminum, so you will need some anti corrosion additive. You could also turn off Hyper Threading to drop 10C but that would turn it into an i5-750/760 (only 4 cores). The 8 cores you have now come in handy if you do any video re-encoding, some games also seem to utilize them. (Based off a gadget I have running.)
post #7 of 15
Thread Starter 
yes i totally agree after a long 3 nights tweaking and stress testing and monitoring ive come to the conclusion its my rad, my min temps all day were 27, 23, 18, 23. it usually sits around 31, 28, 30, 28 when im just doing whatever. but when i stress it out it gets hot and struggles to keep it below 80 and it jumps for a sec to 85, then back to 80, occt doesnt pick up the difference its so fast. then after burn tests were over and the lines were warm it wouldnt drop below 40 for a while. i grabbed another fan from work and am attaching it to the underside of the rad for push/pull. planning on getting another rad eventually and having 2. i was a total noob to watercooling after this system, now i understand pretty well everything to do with watercooling, thats why i bought a cheap kit to start. it served its purpose, it had small tubes with quick connectors attached to the pump and rad, then from the quick connectors to a 3/8' tube and i got different fittings and now i have the 3/8 clear tubes running the whole route that alo made a 5 degree difference. but i finally managed to find a stable 4ghz at the lowest voltage possible, im ******* pushing it.
Edited by Myztkl-Kev - 3/3/11 at 4:49pm
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Kevins-beast
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post #8 of 15
Thread Starter 

Edited by Myztkl-Kev - 3/3/11 at 4:55pm
Kevins-beast
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Kevins-beast
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post #9 of 15
With my 875k at 4.4ghz (ht off) and 1.375v I reach a max temp of 75c. This is under water as well. Turning ht off did drop the temps quite a bit and allowed a higher OC as well but these suckers run hot. I plan on re mounting my block here soon and adding 2 more 120mm fans to my rad. I'll update this thread with the results.
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post #10 of 15
Quote:
Originally Posted by Myztkl-Kev View Post
It seems alil high. My Air cooling gets slightly lower temps on an i7 860 @ 4GHz / 1.36v .

Try reseating?
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