krw wrote:
> In article <tLPpj.4922$1y4.284@[EMAIL PROTECTED]
>,
> DRT@[EMAIL PROTECTED]
says...
>> I just bought some brand new 4GB (2x2GB) of DDR2 800MHz memory.
>>
>> G.Skill F2-6400CL4D-4GBPK
>>
>> Its a higher end enthusiast memory with CAS 4 latency and is about
>> double the cost of the regular more common CAS 5 memory out there.
>>
>> I did my usual MemTest86+ (v1.65 and v1.70) and it re****ts an error
>> on the memory right away! :-( It is a one bit difference from the
>> expected value. It happens on the exact same address of memory on
>> the several times I've run MemTest86 on it. In other words, the
>> error is reproducible.
>>
>> The memory is *not* being overclocked and I've run it in both CAS4
>> and CAS5 latency settings.
>>
>> I've also done about 36 hours of Stress Prime 95 (SP 2004 utility)
>> and got no errors at all! Could MemTest86+ not be reading this
>> larger 4GB of RAM properly?
>>
>> On the other hand, I believe it is possible that such a small area
>> of memory might not be accessible by a user-mode Windows program.
>> That is, the memory is not being used but is reserved by the
>> Windows kernel -- a complete guess on my part and I have nothing to
>> back up this statement.
>
> One bit in one location? Wouldn't that be a tad "fine-grained" for
> memory management?
>
If I understand you correctly, do you mean the one bit in that one
location isn't directly addresseable? Probably but doesn't matter.
My point was that a user-mode program (such as SP2004) could
never directly see this memory cell *if* the Windows kernel has
claimed it as kernel space memory -- hence I could run SP2004 for
ages and it could never re****t a failure -- at least on the memory
cell that Memtest86+ has re****ted a problem with.
>> I'm of the opinion that if any memory fails MemTest86+ that I
>> should RMA it for a replacement. None of my OCZ memory has failed
>> in MemTest86+ but they were the smaller 1GB sticks. Can anyone
>> comment on Newegg and RMA on memory? Do they accept the Memtest86+
>> as a valid reason for replacement?
>
> Send it back.
>
Yeah, I'm going to send this G.Skill memory back to Newegg with a
screen shot of the Memtest86+ errors.
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