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Intel DX48BT2 & 2 pairs of TW3X4G1333C9DHX


BCONDE

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I have a DX48BT2 mb + Q9650 CPU + 4 x TW3X4G1333C9DHX (8GB total), but I just can't make them run stable at 1333MHz!

 

The FSB is running at 1333MHz, but the memory frequency is detected as 1066MHz.

 

Which are the recommended settings for me to run stable at 1333MHz?

 

Default (and current) settings are. 7-7-7-20, 1T, 1,54V.

 

Tks in advance!

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With 4 modules I would suggest setting the memory frequency at DDR1066 and set the memory Voltage to 1.7-1.90 Volts and set the NB/MCH/SPP Voltage to +.2 Volts as well and test the system with http://www.memtest.org. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test.
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Set the FSB to 333 and the DRAM to 1066.

Download Memtest86+ V2.01 from--->

and extract the ISO image. Burn the ISO image to an CD-ROM disk.

Download CPU-z from
.
Performance

Host Clock Frequency Override = Manual
x Host Clock Frequency (Mhz) = 333

Memory Configuration

Reference Frequency = 333
Memory Frequency = 1066

tCL = 9
tRCD=  9
tRP = 9
tRASmin = 24
tRFC = 80
tRRD = 4
tWR = 10
tWTR = 5
tRTP = 5
Memory Voltage = 1.7v
MCH voltage = 1.30v
Command Rate 2T

Boot to the Memtest CD and allow for two full passes. Then, if stable, enter Windows and run CPU-z. Post screenshots of CPU-z's CPU, Memory and SPD tabs.

 

If you perform an overclock of the CPU <--> MCH <--> DRAM then you very likely can recoup the bandwidth lost by the migration from 2 DRAM slots to 4 DRAM slots.

 

Performance

Host Clock Frequency Override = Manual
x Host Clock Frequency (Mhz) = 400

Memory Configuration

Reference Frequency = 400
Memory Frequency = 1333

tCL = 9
tRCD=  9
tRP = 9
tRASmin = 24
tRFC = 80
tRRD = 4
tWR = 10
tWTR = 5
tRTP = 5
Memory Voltage = 1.7v
MCH voltage = 1.30v
Command Rate 2T

 

Retest.

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I have just ran MEMTEST as you suggested. The system was working for hours before the test started, and even then MEMTEST works perfectly. No errors after 2 full passes...

 

However, the system seems unstable! Vista 64 is rebooting, hanging... Some very strange behaviour, specially with games. It all started after I added four more gigs of ram.

 

Should I consider to reinstall SO or it yet seems a HW problem to you?

 

I really appreciate your help!

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Well, thank you very much guys, you have helped me a lot! The pc SEEMS to be stable now... I'm running Vista64-SP1 with 8 gigs since the beginning. MEMTEST never found any errors, but even then it was pretty unstable. Now that I configured the system as you guys suggested, it SEEMS to be a solved problem. Again, MEMTEST didn't find any errors. Anyway, I just posted the pictures of CPU-Z as requested. I would appreciate if you guys give me your opinion.

 

I have only one last question... This little amout of MCH voltage increase may really damage or shorten the chipset life? Mine is runnig at 1.30V now.

 

Thanks again!

Bruno.

cpuz_1.jpg.66b411ddfb5cbd60be38ab65f49cb8e3.jpg

cpuz_2.jpg.a7b8db9529461214f25afb95aec075d0.jpg

cpuz_3.jpg.cd9c4d5e2aba4b7d3ed48a5e67ffcd2a.jpg

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