Hi everone, I own Gigabyte GA-8N SLI rev1.1 which is Nforce SLI chipset that support up to 1066FSB.
I equip this board with Pentium D 915 which run at 800FSB. When I overclock above 900FSB, it will no post. But if I put above 1033FSB, it is will post but will restart everytime. (Means not stable at all).
I already set all setting other than CPU to default frequency. Example, I fix the PCIE clock at 100mhz, DDR2 RAM at 533mhz. And one thing I am sure that is this Pentium D 915 can run above 1066FSB. I have been try a lot of setting and still failed.
I just suspected it is Gigabyte GA-8N SLI rev1.1 is not overclockable. Or what mistake I done with this overclocking. Anyone with this board success to overclocking? Or have the idea? Pls guide me. Thanks a lot!

Below is my spec:
Gigabyte GA-8N SLI rev1.1
Pentium D 915 (2.8G,800FSB)
Geforce 6600GT
Kingston 512MB DDR2 533mhz * 2
Seagate 250GB SATA2

ur not on icute power supply rite?

Mine one is Icute 450watt power supply

Try to enable the performance mode in the Gigabyte Bios. It will increase your board stability a little bit. Also turn off the FSB turbo Mode.

Have you tried jacking up the FSB in smaller increments? like 5-10Mhz.

prepare to get the psu exploded

You gonna scares him.

Motherboard isn't the only factor when comes to overclockings. RAM and PSU play important roles too.