I7 build HEAT PROBLEM need suggestions

Hello all:

I recently built an i7 system. I am having a heat issue.

My Build:

CPU: i7 920
CASE: Cooler Master 690 Nvidia Edititon
MOTHERBOARD: Asus P6T (non deluxe)
GPU's: 2 BFG GTX 260's in SLI
MEMORY: 3 x 2 GB Corsair 1600Mhz
PSU: Corsair TX850
OS: Windows Vista 64bit
CPU COOLERS USED: Stock Intel, Cooler Master Hyper TX2, Thermaltake V1

Temps were obtained by using Core Temp .99.5

(With stock clocks: 2.67 Ghz) I am having a problem with the system overheating when the cpu cores are pushed to 100% by Prime 95 and certain benchmarks. The temps hit 100c in less then a minute before I manually shut the system down.

(Overclocked to 3.4Ghz) When the CPU isn't pegged at 100% it's not soooo bad. At idle the system temps are 38c - 44c. When playing a game such as Crysis for an hour or so the temps max out aroun 83c -85c.

The Asus P6t mobo has mounting holes to mount socket LGA775 coolers along with holes for the 1366's. I've went from the stock cooler to a Cooler Master Hyper TX2, and am currently using a Thermaltake V1 (which I am well aware are all low-mid range coolers). The Thermaltake cooler takes a little longer reach the high tempertaures, but it still ends up with the same heat result.

All heatsinks and the CPU heatspreader were thoroughly cleaned with 90% alcohol and installed using Artic Silver 5 to according to the installation instructions on the Artic Silver website.

All heatsinks were checked by physically touching the heatsinks/heatpipes to check for thermal conduction, and all heatsink fans are operating properly.

I've put a lot of time and money into this system and need to fix this heat problem. And I know that the SLI setup is adding a lot of heat into the case. But this is primarily a gaming system and removing the SLI setup is not something I'm going to do.

My question is would a high end cooler such as a Noctura NH-U12P or Cooler Master V10 fix the problem, or should I go for a water cooling solution? At this point I am not worried about price, and any suggestions will be greatly appreciated.

Thank you in advance.
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  1. Hi Klon0pin

    for sure to get good heatsnk will help you , I have the noctua push-pull and it work great for me. For load on prime 95 10 hours max temp is 76-77 C. The room temps is 28-29C. Don't put too much grease, used the one coming with the noctua fan. If your case have a top fan be sur It wil not suck out the air away of the heatsink. I have a tj-09 and a fan directly over my heatsink. the top fan psuh the air on the pull fans of the heatsink and the push fan pusht the air on my gtx295 . That airflow is the best I can setup for my need.
  2. try the v8/noctua.
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