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bad ram or fake


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I have 1 module of CMX512-2700C2 (XMS2700v1.1) that I purchased in 2002 for my asus A7V333/xp2200. It worked fine so kept it when I upgraded to a asus P4PE/P42.6ghz in 2003 it has been working fine until about a month ago I started getting blue screens such as oe errors , od errors , navx(32)vxd errors and failing to reboot.

I have flashed the bios to the latest , I have uninstalled Norton’s 2002 and replaced it for Norton’s 2004 , thinking it may be the operating system I was contemplating formatting but oe errors are normally memory related so I changed the ram for some generic ram from a another pc and now it's been running perfect since.

I took back the ram back to the shop I purchased it from and they stated said they only support warranty for 12 months on any item and said I need to send it back to corsair. He also said it looked like the heat sink/cover had been tampered with so now I’m wondering if it is a fake. How can I tell, what do I do now.

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  • Corsair Employees

Please use this as a reference:


CPU Freq: 133 MHz

Dim Voltage: 2.75 Volts

DRAM Clock: 333 MHz

CPU/DRAM ratio: 2:3

SDRAM Timing Settings: MANUALLY

SDRAM CAS Latency: 2T

SDRAM RAS to CAS Delay (tRCD): 3T

SDRAM Row Precharge (tRP): 3T

SDRAM Active to Precharge Delay (tRAS): 6T

AGP Voltage: Default *unless you have ATI (9200 or 9600) or NVIDIA (5200 or 5700) then 1.6 Volts suggested!*

Then please test them one at a time with http://www.memtest.org and let’s make sure it's not some other issue! I would run the test for at least 2-3 passes to be sure!

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Thankyou ramguy for your suggestions.

But I've swapped the CMX512-2700C2 with generic 512 from a asus A7V600-x and the problems have stopped, i have tried the CMX512-2700C2 in the asus A7V600-x and having the same issues.

I've never had to modify the bios settings prior as nothing has changed except for time.

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  • Corsair Employees

We will be happy to change the module if you like. Please send us a email with a copy of the form or all of your info name address and phone# and the Module part# and copy the link to this post and email it to Warranty@corsairmemory.com. Or you can also use the On Line RMA Request Form as well.

If after 1 day or 24 hours excluding weekends you do not get the rma please email the same to rma@corsairmemory.com and we will help to resolve it.

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