F2-6400CL5D-4GBPQ x2 on Asus P5Q Pro

[blsmit]

From priorly running, 4 GB of Muskin ram, I recently upgraded to:
F2-6400CL5D-4GBPQ
I bought two of these for a total of 8 GB (4 x 2). After the install I ran Windows Memory Test (something like that), which came up with errors, (PNF_LIST_ERROR ect.). I checked each stick of ram separately using the same Windows Memory Test and all came up clean.

After posting this trouble on Newegg a Representative from G. Skill posted back and informed me to change the DRAM VOLTAGE from AUTO to 1.9v, which I did with immediate (PNF_LIST_ERROR).

The set up runs perfectly with just 6 GB of Ram.


Please Help me.

Thanks,
Ben

[G.SKILL]

please try to add the FSB voltage too
and not every two sets could run together without problem with total 4 sticks
thanks


G.S

[G.SKILL]

please add FSB voltage to 1.4v
and we only guarantee for 2 sticks in dual channel, not 4 sticks in dual channel
4 sticks are more difficult than 2 sticks to be matched
thanks


G.S

[blsmit]

I will change the FSB voltage to 1.4v.

It doesn't make sense to me that I can add two but not four sticks. If two works why wouldn't 4.

Thanks,

Ben

[blsmit]

This didn't work. Maybe some information on my computer will help out.

Here's the Information on my computer
MOTHERBOARD:
Type: Asus P5Q Pro
BIOS:
Version : 1501
Build Date : 11/04/08
American Megatrends, Inc v02.61
PROCESSOR:
Type : Intel Core 2 Quard CPU Q9300 @2.50 GHz
Speed : 2500MHz
Count : 4
SYSTEM MEMORY:
Usable Size : 8192 MB
BIOS INFORMATION:
Ai Overclock Tuner [Auto]
CPU Ratio Setting [Auto]
FSB Strap to North Bridge [Auto]
DRAM Frequency [DDR2-800MHZ]
DRAM Timing Control [Auto]
1st Information : 5-5-5-15-3-52-6-3
2nd Information : 8-3-5-4-6-4-6
3rd Information : 14-5-1-6-6
DRAM Static Read Control [Auto]
DRAM Read Training [Auto]
MEM. OC Charger [Auto]
Ai Clock Twister [Auto]
FSB Termination Voltage [1.20-1.42 (.02 incriminates)]
DRAM Voltage [1.90]
NB Voltage [Auto]
SB Voltage [Auto]

Hope this information helps solve this problem.
Thanks,

Ben

[blsmit]

So I got this issue resolved.

After setting the DRAM Frequency to [DDR2 887]
The DRAM Voltage to [1.96]
and running the computer through 1+ hour of memtest86+ It passed and is very stable
I also Updated the BIOS to the Latest.
This is the setting that works for Asus P5Q Pro Motherboard, 8GB

[G.SKILL]

so....you were overclocking before?
We do not guarantee for overclocking

and to match a pair of memory is more difficult than one single stick ,and so does 4 sticks
that's why memory manufacturers would have single and dual channel packs
thanks


G.S

[blsmit]

No I wasn't overclocking, because I made sure to reset everything back to the original settings. I understand you don't guarantee for overclocking, but the only way to get the memory to run 8 GB is to overclock. I have no other options, which logically means that you still have to provide me warranty if I run into problems in the future.

I don't understand your second statement. It still doesn't make sense that you would "ok" 2 sticks, but not three or four. In fact 3 sticks worked fine. but 4 did not.

If anyone has another solution which doesn't involve overclocking I would greatly appreciate it.

[G.SKILL]

like single channel and dual channel, not every 2 single sticks would match to run in dual channel without problems
that's also why we have different packages for 1, 2 and 4 sticks
for the dual channel pack with 2 sticks, we only guarantee they could run together fine with 2 sticks, not 4 sticks
thanks


G.S