Re: DDR2 Memory Timings

Gordy wrote:
Am having trouble getting ram to work on my new asus p5rd2-vm motherboard. Am on my 3rd lot now and still getting heaps of memory related errors.

Got 2 x 512mb crucial ballistix ddr2 5300 667mhz ram in post this morning and am getting exactly the same settings.

anyway im about to power it back on and try putting the timing settings in manually which i have as 3-3-3-12

You know, there's a good reason that all the Crucial sticks in the 667MHz compatibility list for this board are CL4. Crucial's DDR2-5300 with 3-3-3-12 timings needs a memory voltage of 2.2V, and the P5RD2-VM has no memory voltage adjustments.

As this board can't underclock memory either, your only chance is to slacken off the timings. 4-4-4-12 might work. Note that this board's BIOS seems to quote CAS in non-standard units, so CAS 2.0 in the BIOS is equivalent to CAS 4 anywhere else.

The thing is i cant seem to find out what value i should put for 'refresh rate select'? the input range is between 15.625us and 125us

Use the default.


--
John Jordan
.

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