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HP 8510p memory won't run at rated speed

post #1 of 4
1/28/12 at 10:02am
Thread Starter 
The 8510p supposedly supports dual-channel DDR2-800. I had one stick of 800 and one of 667, so naturally it ran at 667 (333mhz). I installed a 2nd stick of DDR2-800 identical to the other one, and it's *still* running at 667.

I checked the speed in memtest86+ and pc-mark 7.

What gives??
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post #2 of 4
1/28/12 at 1:06pm
Thread Starter 
A little update. Various testing tools keeps reporting incorrect specs for this laptop. However, I'm concluding that the memory speed indeed remains at 667 because various benchmark results are unchanged after the upgrade.

For example, my T7500 (2.2ghz) is reported by memtest86+ (4.20) at 2.4ghz... and pcmark7 and Sandra12 give wildy varying cpu, fsb and memory speeds. Some also report the GPU memory incorrectly.

How am I supposed to trust these tools??

Is it possible that this laptop - which I got originally off ebay -- has a 'customized' bios?
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post #3 of 4
1/29/12 at 9:05am
Unless someone confirms having this model running at max ram speed, manufacturer BIOS and chipset constraint won't support it. It is not the 1st time either that pushing ram speed module to "fit" so called board support won't work

Nice to see you back doug_ny

cheers ...
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post #4 of 4
1/30/12 at 11:28am
Thread Starter 
Quote:
Originally Posted by qhn View Post

Unless someone confirms having this model running at max ram speed, manufacturer BIOS and chipset constraint won't support it. It is not the 1st time either that pushing ram speed module to "fit" so called board support won't work
Nice to see you back doug_ny
cheers ...

Yeah, that seems to be the situation. So much for squeezing more out of this laptop.
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