Can set memory timing-need help

[nasteve]

Built a box for a friend.
P5B deluxe
E6600-oc 3.2 (1.375v)
2x1gig Crucial Ballistic PC26400 (2.15v)
FSB-366
Every time I try to set the memory timing tighter it won't POST. Tried 4-4-4-12 and
5-5-5-15. Will run fine at 5-6-6-18 set by SPD. Tempature is not a problem and the power supply is more than enought and quality. Any ideas on how to get it to 4-4-4-12
as it should do. Also have tried the latest two BIOS, no help.
Thanks for any help.
Steve

 

[myocardia]

Yep, set the FSB to 401, not 400, and it will run at it's spec'd timings. You're at the extreme high end of the wrong memory strap.

 

[nasteve]

Thanks for quick answer, I'll Try that tonight.
Steve

 

[nasteve]

Any other ideas?

 

[myocardia]

Originally posted by: nasteve
Any other ideas?

Yeah, crazily enough, I do. A few (very few) people have had problems running their Ballistix on that board with "only" 2.15v, at 800 (802, actually) Mhz. But, 2.25 worked fine, at but also well above 800 Mhz.

 

[nasteve]

Thanks myocardia, you've given me somes things to try.