Re: Hardware problem - RAM or MOBO?

M Bourgon wrote:

They're specified to require 2.0 to 2.1 volts at rated speed. All the
motherboard BIOS configuration settings seem to vary, but it's
generally very easy to set the memory multiplier wrong and be
running memory out-of-spec. Download CPU-Z and make sure
your memory is running within specification. You can view the
SPD information with this tool, also.http://www.cpuid.com/cpuz.php

If I need to go read up on what all this means, please say so. Does
this help at all?

It says it's a Intel Core 2 Duo e7500 @ 2.93ghz, Core voltage 1.096 -
1.104V
Family 6, Model 7, Stepping A
Ext Fam 6, Ext Model 17, Revision R0

Clocks core speed: 1600.2 MHz
Multiplier X6.0
Bus Speed 266.7
Rated FSB 1066.8

This is likely Intel's Speedstep lowering your multiplier to save power.
If you put a load on it, such as running Prime95 torture test, the multiplier
should go up.

Mobo:
Foxconn Mars

Memory: DDR2
DRAM Frequency: 533.4
FSB:DRAM 1:2

OK, I think your memory is technically running asynchronously
twice as fast as the stock speed specified by your CPU and chipset.
Since you do have DDR2 1066 memory, the memory itself should
be capable, but only at the specified 2.0 - 2.1 volts. Sometimes
you might need more MCH voltage to run it this fast.
http://en.wikipedia.org/wiki/Northbridge_(computing)
Also, different motherboards will vary in their ability to run the
memory this fast.

If you set your FSB:DRAM to 1:1, and DRAM Frequency to 266, that
would be the stock speed of your other hardware. I have similar
G.Skill memory, but four sticks, and it is set at 1:1 with a frequency
of 400 with timings of 4-4-4-12 at 2.0v. That is technically under-
clocking the memory, but running at tighter timings. Your E7500
has an 11x multiplier, so if you ran your memory at 1:1, you might
have to drop your multiplier. My 400 MHz when multiplied by your 11x multiplier would equal 4.4 GHz and I don't think it is
capable, certainly not without extreme measures.

CL 5
tRCD 5
tRP 5
tRAS 15
tRFC 52
CR 2T

Slot #2: 1024
Max Bandwidth: PC2-6400 (400mhz)

JEDEC1 JEDEC2 EPP#1
Freq 266 400 533
Cas Latency 4 5 5
RAS to CAS 4 5 5
RAS recharge 4 5 5
tRAS 10 15 15
tRC 16 24 48
Voltage 1.8v 1.8V 2.100V

So, how much voltage is *your* memory getting while running at 533 MHz? .

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