Unstable I7 and CPU clock multiplier changing automatically...

Hello

I have a Pavilion Elite HPE - 498d (Win7 64 bit, i7 870...). Here is the config:

http://support.HP.com/us-en/document/c02542167

Problem:

My PC never happened:

-Windows Experience Index rating (stopped at about 75%)

-Stress test AIDA64 (especially the comma floating unit test)

-L' Intel processor Diagnostic tool

What will happen?

The PC halt + restart (similar to the power failure for those who know).

What I've done so far?

-makes everything test with the online HP-> successful support

-changed the power supply (Seasonic X 760w series)

-changed the CPU cooler (Cooler Master Blizzard T2)

-change the graphics card (Gigabyte GeForce GTX 650)

The system still does not work.

So I suspect an i7 regularize.

When I look at CPU - Z, I see a multiplier of between 24 and 27 CPU clock. It's somehow good for my PC speed, but... Hold on... I have never overclocked my PC. It is not yet possible to do it from the BIOS. So my questioned are:

-How can I force my HP PC to run at its original CPU clock frequency?

-What on Earth made my PC has changed its multiplier of CPU clock... at will?

I look forward to your support and advise.

Kind regards.

Arnauld

Hi all

Just to keep you all updated and also in case it might help someone, I'll explain below how I managed to solve this problem.

After contacting HP support specialist through all 'fixed' I had done before, it could limit the possibilities. He brought from the hyper-threading. My PC is with an i7 from Intel, and hyper-threading is enabled. Given that I have tell - it activated since the boot settings, the PC works fine, I managed to go through all the FPU test and run all my games including Far Cry 3.

I hope this helps others.

See you soon.

Arnauld

Tags: HP Desktops

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