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Corsair Dominator 8500C5D Blue Screen At 1066 mhz

T

tunayx

Junior Member
I bought new computer below the my system it has 2 gb 2*1 kit of Corsair Dominator CM2X1024-8500C5D, In 800 mhz has no problem but if I set 1066 mhz from the bios then prime95 in ten minutes gives error and I got blue screen, also in 1 minutes to 3 hours time in normal usage I got blue screen too. I set ram voltage to 2.1 and 2.2 and timings default 5-5-5-18 I changed it to 5-5-5-15 but still blue screen comes. Ram fsb is default 266 mhz and I didn' oc the system nor touched any settings in bios. Bios and chipset drivers up to date. I also changed rams (same model) I don't know much things about this stuff what should I do? I updated bios and chipset drivers, memories passed the memtest also I changed rams with same model but no luck. I tried 2.1 and 2.2v timings 5-5-5-15 1066 blue screen again.

q6600 go
asus p5k se (supports 1066)
corsair 2 gb 2*1 1066mhz kit
zalman 7500 cpu fan
palit 8600gt
500 gb seagate 32mb cache sata2 hd
250 gb samsung ata hd
asus dvd ata
thermaltek matrix 430w
xp pro 32 bit


Taken from Everest currently my system at 800 mhz

Module Name Corsair Dominator CM2X1024-8500C5D
Serial Number None
Module Size 1 GB (1 rank, 8 banks)
Module Type Unbuffered DIMM
Memory Type DDR2 SDRAM
Memory Speed DDR2-800 (400 MHz)
Module Width 64 bit
Module Voltage SSTL 1.8
Error Detection Method None
Refresh Rate Reduced (7.8 us), Self-Refresh

Memory Timings
@ 400 MHz 5-5-5-18 (CL-RCD-RP-RAS) / 23-51-3-6-3-3 (RC-RFC-RRD-WR-WTR-RTP)
@ 270 MHz 4-4-4-13 (CL-RCD-RP-RAS) / 16-35-3-5-3-3 (RC-RFC-RRD-WR-WTR-RTP)

Enhanced Performance Profile
Profile Name High Frequency
Optimal Performance Profile Yes
Memory Speed DDR2-1066 (533 MHz)
Voltage 2.1 V
Memory Timings 5-5-5-15 (CL-RCD-RP-RAS)
Row Cycle Time (tRC) 22T
Command Rate (CR) 2T
Write Recovery Time (tWR) 8T


Bios:

Asus P5K SE Bios Settings
Bios 0901
JumperFree Configuration Settings
CPU Ratio Settings : auto
FSB Strap North Bridge : auto
FSB Frequency : 266
PCI-E Frequency : auto
DRAM Frequency: auto (I select 1066)
Dram Command Rate auto
DRAM Timings:- auto (5-5-5-18 in 800 mhz) (I give 5-5-5-16 in 1066)
CAS# Latency:
RAS# to CAS# Delay:
RAS# Precharge:
RAS# Activate to Precharge:
TWR:
TRFC:
TWTR:
TRRD:
TRTP:
DRAM Static Read Control: auto
Transaction Booster: auto
Cpu Voltage: auto
Cpu GTL Voltage reference: auto
CPU Spread Spectrum: auto
PCIE Spread Spectrum: auto
CPU Voltage: auto
CPU Voltage Reference: auto
DRAM Voltage: auto (I give 2.1 and 2.2 v for 1066)
Clock Over-charging mode: auto
Cpu spread spectrum: auto
Pcie spread spectrum: auto

Advance CPU Settings
CPU Ratio Setting: auto
C1E Suppport: enabled
Max CPUID Value Limit: disabled
Vanderpool Technology: enabled
CPU TM Function: enabled
Execute Disable Bit: enabled
Intel® Speedstep? Tech: enabled
 
Sadly no in this model of mobo there's only nb strap frequency, can I increase nb strap freq without ocing or changing additional settings or this help me (I don't know anything about hardware issues)
 
In 1066 if I run prime95 it gives an instant error FATAL ERROR: Rounding was 0.4609375, expected less than 0.4. Blue screens come especially while copying files, but in 800 never experienced any error. Any suggestion?
 
I think you need more NB voltage to hit that ram speed. All I can recommend is going to the highest strap, or running at a lower speed and tightening the latency.
 
Which value should I set for NB strap freq 266, 333 etc? Does this dangerous. By the way asus released new bios version. In changelog written some ide compatibility enhancements. I update it and xp welcome screen gives blue screen for sata hd only. I boot from ata hd and downgrade the bios version. Asus totally weird.
 
If you cannot adjust the NBv you may not be stable at 1066. I'd suggest you contact ASUS and ask them to clarify about the 1066 support.

Also, set the CPU to stock, RAM to DDR800, 2.2v, 5,5,5,18 timings and test each module with Memtest: www.memtest.org

And, can you give the full spex on your PSU?
 
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