zalophus

Have OC system to 450/1:1-900/5-5-5-15, and system rock solid with orthos and memtest.

Tried to go to 460, 475, even 500, all with concurrent increases in voltages, and all that happens is after f10 save, my system starts reboot, does a "hic-up", shuts down and then immediately restarts and when I check my bios settings they have all returned to the 450/1:1-900 settings.

When I set FSB lower, it works fine, and when I set just "Dram Speed" CPU/DRAM ratio to 1:20 system boots fine and new settings hold. But can't get the FSB to budge off 450.

Any ideas what's happening? I know from other forums that my system is capable of much higher FSB settings.

Thanks

__________________
Zalophus
Abit IP35Pro-Bios17
E8500-Zalman 9500AT
Geil Esoteria 2x2GB
XFX 8600GT
Corsair 620HX
WD-1@250GB SATA; Seagate 2x320GB SATA
Vista Ultimate x64
Antec 900

chris_robb

It could be that you've reached the max supported FSB of the board. Have you tried using lower timings, lower multipliers, and upping JUST the fsb to see how high the board alone acn go (thus removing any other factor - by underclocking RAM, CPU, etc)?
Chris