SOCHOX 8GB DDR2 PC2-6400 800Mhz DIMM AMD

Norm X wrote:
"~misfit~" wrote in message
news
Once upon a time on usenet Norm X wrote:
"Paul" wrote
[massive snippage]
Paul
The Intel Q9650 arrived and its performance is well worth the price.
I tried the SOCHOX 8GB DDR2 PC2-6400 800Mhz DIMM AMD RAM and it still
won't boot. The MOBO can't handle it, I guess.
Great CPU. I've been running a Q[X]9650 for the best part of a decade now
and it's still doing everything that I ask of it and rarely runs above 50%
CPU usage, even when gaming.
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a
cozy little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)


Thanks.

In an effort to exploit 4GB PC2-5300 compliant RAM, I purchased a 200 pin
laptop memory module for $31 and a JET-54021 200-240 pin adapter. The RAM
was tested by the vendor. I used memtest-86, Windows Memtest and the memtest
app to test it. It passed all tests even after dozens of iterations.
However, the PC had a tendency to crash. I had placed the adapter and RAM in
the slot closest to the CPU. When I moved it to the slot further from the
CPU, it crashed immediately. I conclude that the longer signal path made it
more unstable.

This observation may the interest to users contemplating the same idea.

4GB 240-pin PC2-5300 compliant RAM is available but it cost USD$200. I plan
to wait for prices to drop. Why? I want 8GB memory without the trouble of
upgrading my MOBO.

Pricing on memory isn't always rational.

You have to get out your pencil, and do a few
calcs, to see if there's a different way to upgrade
for less money.

******

Using a DIMM adapter could throw off signal integrity.
So that's one unknown. You certainly wouldn't want to
use four adapters on a four slot motherboard like that.
Try one adapter per channel and put it in the slot
furthest from the CPU or chipset.

And there is actually a DRAM timing parameter which
compensates for the length of the DRAM bus. I doubt
your adapter threw off the dimensions too much, but
I just thought I'd mention that such a thing exists.

Normally, nobody even thinks about adjusting that
timing parameter in the BIOS, because it's considered
to be a "manifest constant of motherboard design". The
motherboard designer tells the BIOS designer what value
to use, and there's no incentive to change it.

Paul