Tom's Hardware > Forum > Overclocking > General Discussions > Can't overclock i7 920 to 3Ghz with TRUE cooler

Can't overclock i7 920 to 3Ghz with TRUE cooler

Forum Overclocking : General Discussions - Can't overclock i7 920 to 3Ghz with TRUE cooler

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JamesN_007   05-16-2009 at 07:53:32 AM

Hi,
I just put an i7 920 computer together today and found that I can't run prime95 stable at 3Ghz (I was planning to overclock to 3.6Ghz!). Anyway, I am able to run prime95 at 2.9Ghz and the load temperature peaks at 74 degree C.

Here is my computer specs
CPU: i7 920
MB: Asus P6T
RAM: OCZ Platinum 6GB Triple Channel DDR3-1600
Cooler: TRUE
VCard: HD 4890
Case: CM 690

Here are the current voltage settings:
CPU: 1.35V
QPI/DRAM: 1.35V
DRAM Bus: 1.64V
CPU PLL: 1.96V
Everything else is set as auto

Could someone please advice what to do? I am very disappointed with my system!
Regards,
James

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vinman   05-16-2009 at 03:44:04 PM
- 0 +

can't be getting good contact with hsf, try to reseat.

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Huttfuzz   05-16-2009 at 06:37:15 PM
- 0 +

Reseat heatsink and CPU PLL seems very high. Lower that down to 1.88 or 1.86.

------------------------------ Silverstone FT-01 | Core i7 920 D0@ 4.0 1.25v | Gigabyte ex58-ud3r | TRUE-1366RT | 3x2GB OCZ Gold @ 1600 mhz CL8 | eVGA GTX275 FTW (713/1512/2520) | 1x Hitachi P7k500 500GB | 1x Seagate 7200.11 750 GB | Corsair TX850w
 Reply to Huttfuzz
PhilipV   05-17-2009 at 06:12:54 PM
- 0 +

Did you apply the thermal grease correctly?

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