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RMA request (1GB Value Select VS1GB400C3)

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I purchased a 1GB stick of ram from ZipZoomFly (anyone else miss GoogleGear?) on Jan 29th for my Mac Mini. The machine has been acting oddly since (sporadic crashes), but I couldn't track down the cause. Yesterday I installed Mac Server on the machine and the crashes became _much_ more frequent (~1 an hour). A call to Apple suggested RAM as a possible cause.


I pulled the RAM, installed it in an x86 desktop and ran Memtest86+. The tester reports consistent errors in the upper half of the address range (past 512MB). The errors are always in the second-lowest byte (0x0000XX00).


As it has been well over 15 days (ZZF's return period), I'm contacting Corsair directly. I would like to exchange the DIMM.

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Necessary info:


Memory markings:

Corsair Value Select


<bar code>

780 - 0503105-0 - 101430


PC is an Athlon running a KT266 chipset


BIOS settings:

FSB Freq: 133MHz (unselectable)

DRAM Freq: 166x2 MHz (unselectable)


DRAM Timing: SPD

DRAM CAS Latency: 2.5 (unselectable)

Bank Interleave: Disabled (unselectable)

Precharge to Active (Trp): 3T (unselectable)

Active to Precharge (Tras): 6T (unselectable)

Active to CMD (Trcd): 3T (unselectable)

DRAM Burst Length: 4

DRAM Queue Depth: 4 level

DRAM Command Rate: 2T Command

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Oh man,


I have bought a stick of VS1GB400C3 for my A7N8X-VM/400 for using with onboard video (in PC333 mode), and a Sempron 2400+ (FSB=333). It's running at 3-3-3-7 timings.


Passed memtest86 and it came up with a few errors (10 to be exact), all in the range 516,6MB to 541,4MB.

The error count in each error is exactly 1, and the error bits are aways "00001000".

The errors aways happen in tests #5, #6, and #7 of memtest and are consistent over the executions.

Bad stick?


Ps.: previously, I've ordered a XXXXXXXXX, which didn't work at all. Think this MOBO is picky with memory.

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Yes it is picky with memory, and they do not give you all of the options in the bios to tweak the timings. But if you have the option to set the Dim Voltage I would set it to 2.7 Volts and test the module with http://www.memtest.org and set the timings manually to 3-3-3-8.


Thanks for your answer.

I think it's not possible to change mem voltage on this motherboard (in fact, you can't change much in BIOS screen).

Any other ideas ?



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