Ram speed issue.

mogwai

mogwai

mogwai

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Joined
27 Aug 2004
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I have recently got some Kingston HyperX PC-8500 ram. I have an Asus P5Q Deluxe motherboard with all the settings set to Auto.

The issue I have is that when checking the RAM in CPU-Z it is being seen as PC-6400 and is therefore running at 800 Mhz rather than 1066 Mhz.

Shouldn't it run at the correct speed without me setting it manually in the BIOS?
 
I tried setting it to DD2 - 1066 Mhz and 2.20v in the bios. However this causes BSOD's during boot up or soon after logging in and launching CPU-Z. I also tried setting the timings to 5-5-5-15 with the other parameters left on auto.

The only way to get the pc stable again is to leave everything in the BIOS at Auto which only gives me RAM running at 800 Mhz.
 
Other than the voltage what setting did you set to get the PC8500 ram to run at the correct speed of 1066 as at the moment with everything on auto it is running as PC6400.
 
It is 4 Gb of Kingston Hyper X PC-8500. I have taken out all the cruical ballistix as it is causing instabilities latley. Even though the Kingston is not running at 1066 my system has been 100% Stable.

It would seem with this new RAM that running everything at auto is not running it at the correct speed.
 
Right so far I have run Memtest86 at 800 Mhz passes with no errors. If I change the speed to 1066 Mhz I get a load of errors in test 5.

I guess I need to run it with just each stick on its own to see if one or both have an issue.
 
Right I have tested both sticks on their own, my findings are:

Stick 1:

800 mhz Auto with Auto voltage is ok
1066 mhz with Auto voltage errors seen in Memtest86
1066 mhz with 2.20 v manually set is ok


Stick 2:

800 mhz Auto with Auto voltage is ok
1066 mhz with Auto voltage errors seen in Memtest86
1066 mhz with 2.20 v manually errors seen in Memtest86
 
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