Problems with AMD64 and 8 GB RAM?
Greg 'groggy' Lehey
grog at FreeBSD.org
Wed Mar 30 14:44:48 PST 2005
On Wednesday, 30 March 2005 at 14:35:46 -0800, Steve Kargl wrote:
> On Thu, Mar 31, 2005 at 07:54:39AM +0930, Greg 'groggy' Lehey wrote:
>> None of these problems occur when I use 4 GB memory. About the only
>> strangeness, which seems to come from the BIOS, is that it recognizes
>> only 3.5 GB. If I put all DIMMS in, it recognizes the full 8 GB
>> I realize that this isn't enough to diagnose the problem. The reason
>> for this message now is to ask:
>> 1. Has anybody else seen this problem?
>> 2. Has anybody else used this hardware configuration and *not* seen
>> this problem?
>> 3. Where should I look next?
> Have you run sysutils/memtest86 with the 8 GB?
Heh. Difficult when the system doesn't run.
> I had 4 bad out of 12 tested where the DIMMs were Crucial PC2700 2GB
> Reg. ECC DIMMs.
OK, this makes sense. It might also explain why the 4 GB
configuration only recognizes 3.5 GB.
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