K9A2 Platinum with 4 or 8 Gigs F2-8500CL5D-4GBPK Unstable

[Johnhoy]

Just got this F2-8500CL5D-4GBPK memory on Monday Started experiencing BSOD?s and program crashes. Before buying I checked G.Skill web site and my Motherboard is listed as compatible (K9A2 Platinum). Ran Memtest-86+ ver 2.01 from CD and got 2 errors on first set of DRAM in slot 0 and 1. Pulled first set and Put second in lot 2 and 3 and got 320 errors in one pass. Put old memory (F2-6400CL5D-4GBPQ) in and reset BIOS to all Auto and ran same tests no errors. Is the memory bad or do I have a setting messed up. Below is System specs and BIOS settings.

Component Make Model qty
Motherboard MSI K9A2 Platinum Motherboard 1
Bios AMI Version 1.5 date 2008-06-17 1
Processor AMD HD985ZXAGHBOX Phenom 9850 BE 1
OS Microsoft Windows Vista Ultimate 64 bit 1
Video Cards Diamond Viper 3870PE4512SB Radeon HD 3870 in CrossfireX 2
New Memory G.Skill F2-8500CL5D-4GBPK 4GB (2 x 2GB) DDR2 1066 2
Old Memory G.Skill F2-6400CL5D-4GBPQ 4GB (2 x 2GB) DDR2 800 2
PowerSupply Tagan TG800-U33 ITZ Series 80+SLI Crossfire 800 Watts 1
Hard Drive Seagate ST31000340SV 1TB 7200 Rpm 32MB Cache 1

Bios Setup in Core Cell
Setting Value
AMD?s TLB Fix Disabled
D.O.T.# Step3 Setting Disabled
D.O.T.# Step1 Setting Disabled
D.O.T.# Step2 Setting Disabled
_________________________________________
AMD Cool?n?Quiet Disabled
Adjust CPU FSB Frequency 200
HT Ratio Auto
Adjust CPU Ratio Auto
Adjusted CPU Frequency 2500
__________________________________________
>Advanced DRAM Configuration Press Enter (see next table)
FSM/Memory Ratio 1:2.66
Adjusted DDR Memory Frequency 1066
__________________________________________
Auto Disable DIMM/PCI Frequency Enabled
__________________________________________
CPU Voltage Auto
Memory Voltage 2.1
NB Voltage Auto
Hypertransport Voltage Auto
__________________________________________
Spread Spectrum Disabled




Advanced DRAM Configuration
DRAM Timing Mode Both
CAS Latency (CL) 5
TRCD 5
TRP 5
tRTP Auto
TRAS 15
TRC Auto(defaults to 33 can be set 42 max)
tWR Auto
TRRD Auto
tWTR Auto
tRFC0 Auto
tRFC1 Auto
tRFC2 Auto
tRFC3 Auto
Bank Interleaving Auto
1T/2T Memory Timing 2T
Software Memory Hole Enabled
DTC Unganged Mode Disabled

[G.SKILL]

to run DDR2 1066, you'll need to add the nb voltage to 1.4-1.5v
and for Phenom platform, it seemed only support to DDR2 1066 for 2 dimms
and your another set memory is DDR2 800, not DDR2 1066


G.S

[Johnhoy]

I will give that a try as soon as I have time. I actually have 4 sets of DIMMS 2 sets (8G) of the F2-6400CL5D-4GBPQ which I originally built my system with and they ran flawlessly for the past 10 months. I also have 2 sets (8G) of the F2-8500CL5D-4GBPK that I just purchased. I was hoping to get a performance boost for my video editing/rendering that I do. Do you know if there a better memory test program out there that works with the chipsets I have? I have tried a number of them and they either do not support even 4 gigs or the chipset I have. I appreciate the assistance and quick response.

[Johnhoy]

Checked out settings with NB voltage @ 1.4 Two dimms work at 1066, no errors in Memtest-86+, Windows boots and seems to run OK for short time I have to try this. However latest AMD Overdrive reports memory running in single mode even though setting is unganged same as Memtest-86+ does. As per your response 4 DIMMS of F2-8500CL5D-4GBPK do not run correctly Windows starts but then promptly reboots. Don't know if 8 Gigs DDR2 800 better or 4Gigs of DDR2 1066 for video rendering. I wll try both later if I get the chance.

[G.SKILL]

for testing memory, you can use memtest for windows
you can find it here:
http://hcidesign.com/memtest/download.html

you need to open few of them and fill in the amount you need to test

and for video rendering, large capacity may help more than high speed
thanks


G.S