Tube Posted December 17, 2005 Share Posted December 17, 2005 I don't seem to be able to get the Twin2X1024-5400C4 memory to perform above 533 MHz with my Asus P5WD2-P mobo. Mobo manual says the default is to downgrade DDR2-667 with CL=4 memory to run at 533MHz and to use manual BIOS settings for higher mem speeds. But manually setting DRam speed to 600 in BIOS results in major instability and setting DRam to 667 gives BSOD. I have surfed for solutions eg. http://www.houseofhelp.com/forums/showthread.php?t=38150 and http://www.corsairmemory.com/corsair/products/specs/twin2x1024-5400c4.pdf As per Corsair article AN504 (URL above) I tried changing fcpu to 250 instead of 200; newer BIOS for the mobo doesn't allow explicitly setting a multiplier as in the article but you can choose a nominal memory speed. Still get instability, freezes, or BSOD at any real mem speed above 533MHz. I also note that Asus doesn't list Twin2X1024-5400C4 on its "Qualified Vendor List". I have found several references to using this memory with this mobo in Corsair documentation, but none of these provide any notes on how to configure the BIOS for the P5WD2-P. How do I configure the BIOS to get the memory to perform at the rated speed? Or did I buy the wrong memory for this mobo? Not sure how to insert system specs in message. CPU is Pentium 840D. Have tried mobo BIOS 0422 and 0606. Dual Western Digital 120-GB sata-II HDs configured for RAID mirroring (partitioned into 80 and 40 GB logical drives) plus WD 250 GB SATA-II HD on IDE. Gigabyte GF6600GT graphics card, usual DVD etc drives plus 2 ZIP dirves, Antec 550W Power Supply, Coolermaster stacker case w/ various extra fans (don't think I have heat problem). Have taken out SCSI, TV tuner, video capture PCI boards - doesn't solve the problem. Running Win XP Pro. Thanks, Tube Link to comment Share on other sites More sharing options...
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