I just checked the supported processors list for the motherboard and it only seems to list Pentium 4 and Celeron Processors.

http://support.intel.com/support/motherboards/desktop/d915gag/sb/CS-026959.htm

Hmmm..

Hello there, I have a fairly outdated Intel motherboard (D915GAG/D915PSY) that has the front speed of 800/533/400 MHz.

This motherboard is in the Pentium 4 family, but uses LGA775.

I have been using a Pentium 4 3.0 Ghz 530J processor for many years, but have noticed how it is no longer optimal for PC gaming.

Would I be able to install an Intel Core 2 Duo E7400 2.8 Ghz processor even though it has the front speed of 1066, but also uses LGA775?

http://www.ncix.com/products/index.php?sku=34584&vpn=BX80571E7400&manufacture=Intel&promoid=1078

...or am I stuck with a processor that only has the FSB of 800Mhz?

http://www.ncix.com/products/index.php?sku=33181&vpn=BX80571E5200&manufacture=Intel&promoid=1078

Will I even be able to install an Intel Core 2 Duo processor with this motherboard?

Thanks for any answers.

What's the picture, Will Wright's face?

I just tried it and, [spoiler] it is. [/spoiler]