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Possible bad memory - advice needed!


barma16

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Hi All!

 

Here's the deal - I recently built myself a system which included a pair of TWINX512-4400PT modules. I got everything up and running fine with the default settings, so after a few weeks "bedding in" (no problems at all during that period), I changed the relevant voltage to 2.75 and the latency settings to 3-4-4-8 as per the paperwork that came with the memory.

 

I restarted the machine and although I can hear everything powering up, it doesn't boot. The screen stays entirely blank. I'm concerned that this might be the memory, but with an unbootable machine I'm unsure how to verify this. Can anyone offer any suggestions?

 

Spec:

 

P4 2.8GHz HT Processor

Intel 875PBZ Motherboard

Antec 430W TruePower PSU

Audigy 2

nVidia GeForce 6600GT 128MB

 

Thanks in advance!

Mark

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Please test the modules one at a time with http://www.memtest.org and I would set the Dim Voltage to 2.85 Volts as well. If you do find one failing then lets get it or them replaced. Please follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it!

However; if you get errors with both modules, that would suggest some other problem. And I would try testing the memory in another system to be sure.

 

In addition, you may not be able to reach the frequency needed to run these modules at their tested settings with a 2.8C CPU. So you might try and set the timings to Cass 3-3-3-8 at DDR400 and test them one up.

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Thanks - Will I be able to use memtest in my existing system? I don't even get POST messages at the moment - as I said, the screen stays completely blank when I turn the power on. I've tried resetting the BIOS using the jumper, but no change.

 

Mark

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Do you have other memory you can try and see if the system will post? And have you tried the system with just one module at a time?

 

I don't have any other memory I'm afraid - none of the older stuff I have fits. I have tried one stick at a time, in all of the available slots, but there's no change. I don't have access to another (compatible) system to test the memory either...

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If the system will not post with either module, that would suggest some other issue, as all of our XMS modules are tested in a MB at their rated speed before they leave our factory. So it would be close to impossible you got 2 dead modules. I would see if a friend can help you test them in another system to be sure.
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