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DP45SG mobo ram timings, etc.


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Corsair TW3X4G1333C9DHX 4GB (2x XMS3 2GB) PC-10600 (1333MHz) XMP, timings according to sticks are 24,9,9,9 at 1.7v. Like others been having quite a few problems at 1333 (no standby, BSOD etc). Can you suggest other ram timings I can enter in bios? I have tried a few along with different volts, MCH etc.

The cpu is a Q9450 its FSB is 1333? Does that means the ideal ram speed is 1333?

The DP45SG doesnt seem to have as many configurations as other boards for tuning ram.

I have read on one occasion the mobo doesnt support 2gb sticks at 1333?

The bios is the latest.

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  • 2 weeks later...

Thanks, that does seem to be the general consensus on the net. I have had various success at 1333 by bumping voltages a bit (inc. MCH), was keen to get an opinion on timings - maybe other users have had some good results?

 

So, is the q9450 FSB matched better to 1066 or 1333 ram? is there a 'bottleneck' in this?

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No, even though this is a bottleneck as far as synthetic benchmarks, it will not be a bottleneck for actual real performance. Technically, the bottleneck in this equation is going to be the memory controller since it is mounted on the MOBO as opposed to being on the CPU like with Core i7.
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  • 3 weeks later...

Well, thanks to a recent BIOS release (118), I have the DDR3 running at 1333mhz (DRAM:FSB ratio 20:10) and its UBER STABLE. :D:

 

No adjustments to the MCH either, just bumped up the recommended DDR3 voltage of 1.7v to 1.75v (felt like it).

 

Compared to the default 1066mhz, L2 cache benchmark was ~ 2000 MB/s improved.

 

Timings:

 

RFC: 74

RRD: 4

TWR: 10

WTR: 5

RTP: 5

1333.jpeg.jpg.961b85801959c41f7aa989752c035f3a.jpg

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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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  • 2 weeks later...

okay, memtest has shown one stick of a pair is faulty. just to clarify, paired rams are slotted in A slot 0 and B slot 0 yes?

 

if the ram runs at 1066 instead of the 1333, should voltage stay at 1.7 or drop down to 1.5? also, do the timings of 9,9,9,24 still apply if running at 1066?

 

thanks.

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thanks for your reply.

 

i have organised replacement with local supplier thanks.

 

can you please answer my question: if i have to run my 8gb of 1333 ram at 1066 with this board, should voltage be 1.5 or 1.7? and, do i use board default timings or the sticks 9,9,9,24? thanks

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