8GB (4 x F3-10666CL9D-4GBNQ) on Asus P5E3 Deluxe with Core2Quad Q9450 - Help!

[danielmleite]

Hi,

I recently made an upgrade in my system memories and I have random blue screens running my system with new 8 GB of RAM. Sometimes it locks within 5-15 minutes, other times it goes 1-2 days before a lockup. Going back to older 4 GB and the system memories is running great.

I have tested each kit and each module separate and in different slots and everything is fine (MenTest and windows memory checker).

I have all voltages and timings using auto settings and I also tried to use the X.M.P setting in AI Tweaker with no success.

BIOS is flashed to the latest available version (release 1415)... With the shipped bios it was the same problem.

I am running Win7 Ultimate 64 bits and I tried to reinstall the OS, but now I can?t complete the installation.

I know I have to tweak the bios settings to run 8 GB stable, but I don't know where to start and won't damage anything.

Can you please tell me which settings I have to adjust in detail for a regular setup of 8 GB? Thanks in advance for any help.

P.S. Sorry for my English, but it is not my native language (I?m from Brazil and speak Portuguese).

Current Settings:
Ai Overclock tunner - Auto
CPU Ratio Setting - Auto
FSB Strap to North Bridge - Auto
PCIE Frequency - Auto
DRAM Frequency - Auto
DRAM Command Rate - Auto
DRAM CLK Skew on Channel A - Auto
DRAM CLK Skew on Channel B - Auto
DRAM Timing Control - Auto
= 1st Information: 9-9-9-24-4-74-10
> CAS# Latency - 9 DRAM Clocks
> RAS# to CAS# Delay - 9 DRAM Clocks
> RAS# PRE Time - 9 DRAM Clocks
> RAS# ACT Time - 24 DRAM Clocks
> RAS# to RAS# Delay - 4 DRAM Clocks
> REF Cycle Time - 74 DRAM Clocks
> Write Recovery Time - 10 DRAM Clocks
= 2nd Information: 10-5-5-4-7-4-7
> Read to Write Delay(S/D) - 10DRAM Clocks
> Write to Real Delay (S) - 5 DRAM Clocks
> Write to Real Delay (D) - 5 DRAM Clocks
> Read to Read Delay (S) - 4 DRAM Clocks
> Read to Read Delay (D) - 7 DRAM Clocks
> Write to Write Delay (S) - 4 DRAM Clocks
> Write to Write Delay (D) - 7 DRAM Clocks
DRAM Static Read Control - Auto
DRAM Dynamic Write Control - Auto

Ai Clock Twister - Auto
Ai Transaction Booster - Auto

CPU Voltage - Auto
CPU PLL Voltage - Auto
FSB Termination Voltage - Auto
DRAM Voltage 1.50 (There is no auto setting on this option)
NB Voltage - Auto
SB Voltage - Auto
Clock Over-Charging Voltage - Auto
Load-line Calibration - Auto
CPU GTL Voltage Reference - Auto
NG GTL Voltage Reference - Auto
CPU Spread Spectrum - Auto
PCIe Spread Spectrum - Auto

Specifications:
Motherboard: Asus P5E3 Deluxe WiFi-AP@n (X38 Chipset)
Processor: Intel Core?2 Quad Q9450 2.66 GHz
Actual Memory: G.Skill 8Gb (4x2Gb) DDR3 1333 Dual Channel F3-10666CL9D-4GBNQ
Previous Memory: Patriot 4Gb (2x2Gb) DDR3 1333 Dual Channel PC3-10600 CL9
VGA: Asus EAH3870X2 1GB DDR3
PSU: CoolerMaster RS-750-ACAA-A1 750Watt
Blu-Ray-DVD Burner: LG Sata W/DL/lightscribe
DVD burner: Asus USB W/DL/Lightscribe
HD: 2xSeagate Barracuda 7200.11 500 Gb
OS: Windows 7 Ultimate 64Bit
No-Break: SMS Manager III Senoidal 1.2 Kva

[GSKILL TECH]

Try the following settings and let me know how it goes.

Ai Overclock tunner - Manual
CPU Ratio Setting - Auto
FSB Strap to North Bridge - Auto
PCIE Frequency - Auto
DRAM Frequency - DDR3-1333
DRAM Command Rate - Auto
DRAM CLK Skew on Channel A - Auto
DRAM CLK Skew on Channel B - Auto
DRAM Timing Control - Manual
= 1st Information: 9-9-9-24-4-74-10
> CAS# Latency - 9 DRAM Clocks
> RAS# to CAS# Delay - 9 DRAM Clocks
> RAS# PRE Time - 9 DRAM Clocks
> RAS# ACT Time - 24 DRAM Clocks
> RAS# to RAS# Delay - 4 DRAM Clocks
> REF Cycle Time - 110 DRAM Clocks
> Write Recovery Time - 10 DRAM Clocks

DRAM Voltage 1.50
NB Voltage - 1.40V

Thank you
GSKILL SUPPORT

[danielmleite]

The problem continues on 8GB (4 x F3-10666CL9D-4GBNQ)

Hi,

For a while I was happy. But after 1 day, some blue screens again.

MenTest and windows memory checker are Ok.

I install CPUid program a I have got this informations:

Memory:
> Type: DDR3
> Channels#: Dual
> Size: 8192 MB
> DC Mode: Symetric
> DRAM Frequency: 667.8Mhz
> FSB DRAM 1:2
> CAS# Latency (CL): 9.0 clocks
> RAS# to CAS# Delay (tRCD): 9.0 clocks
> RAS# Precharge (tRP): 9.0 clocks
> Cycle Time (tRAS): 24 clocks
> Row Refresh Cycle Time (tRFC): 110 Clocks
> Command Rate (CR): 2T

CPU:
> BUS Speed: 333.9 MHz
> Multiplier: x 6.0
> Rated FSB: 1335.7 MHz

I did all the settings exactly as you described, but NB Voltage starts with increases 0.02 from 1.25, so I put on v 1.41 because I cannot use 1.40 v.

Please Help me.

P.S. Sorry again for my English, but it is not my native language

[GSKILL TECH]

Set tRFC to AUTO, it may be slightly too high.

Thank you
GSKILL SUPPORT

[danielmleite]

Hi,

I?m still having problems (Bsod's and system crashes) . What should I do?

[Tradesman]

try tRFC @ 88, and may have to drop even a little lower, also command rate/timing at 2T

[GSKILL TECH]

Did you try testing one stick at a time? You may want to do this in case one stick is defective and causing these issues.

Thank you
GSKILL SUPPORT