PC Hardware forum


Potential Bad Memory

by Kwjamesblond / May 19, 2015 4:41 AM PDT

I have a asus p7p55 ws supercomputer motherboard with 4 slots of DDR 3 and after my computer crashed a few months ago and I tried to do a repair install but received an error message that said my SSD boot drive was locked. After scanning memory with memtest I realized this was because my two OCZ 4GB sticks of memory are bad and after removing them the computer could boot into windows again. Now I am wondering what the best way of testing the slots those two memory sticks were in are still good? I'm afraid that the slots are bad to and if I put my two good sticks of memory in those slots they may break my good memory. Also I could put the bad memory in another computer but I don't think that is a good idea as well. OK the question is what is the best way to find out if my motherboard is still good or not?

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Clarification Request
Let's check a basic thing.
by R. Proffitt Forum moderator / May 19, 2015 4:59 AM PDT
In reply to: Potential Bad Memory

Are all memory sticks the same make and model. If not, troubles are very common.

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Make of memory.
by Kwjamesblond / May 19, 2015 9:42 AM PDT

I had two 4gb of ocz memory that went bad and two 2gb of memory I don't know the brand of.

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If you mix memory make/models
by R. Proffitt Forum moderator / May 19, 2015 10:36 AM PDT
In reply to: Make of memory.

Strange things can happen. EXAMPLE!!!

Let's say your machine checks the SPD ( http://en.wikipedia.org/wiki/Serial_presence_detect ) and reads to set the VRAM to 1.4 Volts. But due to some oversight or an engineer and company that thinks folk know about not mixing make/models the BIOS reads only the first 2 sticks and programs the VRAM to what it read.

OK, let's say your next 2 sticks are 1.2 Volt models. They may work for a time but burn out.

This may be new territory but the rule is "don't mix."

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by Kwjamesblond / May 19, 2015 12:09 PM PDT

Good to know I only thought this was true for older pc's

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Very very few PCs let you mix memory.
by R. Proffitt Forum moderator / May 19, 2015 12:23 PM PDT
In reply to: Thanks

If you do, it's up to the person that does to check out old and new specs to see if there is any issue.

Nothing has changed in this area for about a few decades.

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