Zotac G31 Value CPU type Speed CMOS CPU power Core 2 Quad Q9550S 2.83GHz 45nm 65W Core 2 Quad Q8200S 2.33GHz 45nm 65W Core 2 Duo E8600 3.33GHz 45nm 65W Core 2 Duo E8500 3.16GHz 45nm 65W Core 2 Duo E8400 3.00GHz 45nm 65W Core 2 Duo E8300 2.83GHz 45nm 65W Core 2 Duo E8200 2.66GHz 45nm 65W Core 2 Duo E7400 2.80GHz 45nm 65W Core 2 Duo E7300 2.66GHz 45nm 65W Core 2 Duo E6850 3.00GHz 65nm 65W Core 2 Duo E6750 2.66GHz 65nm 65W Core 2 Duo E6700 2.66GHz 65nm 65W Core 2 Duo E6600 2.40GHz 65nm 65W Core 2 Duo E6550 2.33GHz 65nm 65W Core 2 Duo E6540 2.33GHz 65nm 65W Core 2 Duo E6400 2.13GHz 65nm 65W Core 2 Duo E6320 1.86GHz 65nm 65W Core 2 Duo E6300 1.86GHz 65nm 65W Core 2 Duo E4700 2.60GHz 65nm 65W Core 2 Duo E4600 2.40GHz 65nm 65W Core 2 Duo E4500 2.20GHz 65nm 65W Core 2 Duo E4400 2.00GHz 65nm 65W Core 2 Duo E4300 1.80GHz 65nm 65W Pentium Dual-Core E6300 2.80GHz 45nm 65W Pentium Dual-Core E5300 2.60GHz 45nm 65W Pentium Dual-Core E5200 2.50GHz 45nm 65W Pentium Dual-Core E2220 2.40GHz 65nm 65W Pentium Dual-Core E2180 2.00GHz 65nm 65W Pentium Dual-Core E2160 1.80GHz 65nm 65W Pentium Dual-Core E2140 1.60GHz 65nm 65W Celeron Dual-Core E3300 2.40GHz 45nm 65W Celeron Dual-Core E3200 2.40GHz 45nm 65W Celeron Dual-Core E1600 2.40GHz 65nm 65W Celeron Dual-Core E1500 2.20GHz 65nm 65W Celeron Dual-Core E1200 1.60GHz 65nm 65W Celeron 440 2.00GHz 65nm 35W Celeron 420 1.60GHz 65nm 35W Pentium 4 631 3.00GHz 65nm 65W Tested Memory modules Model marker Memory size DDR type Adata Vitesta DDR2 800 512M 512M DDRII 800 Corsair CM2X1024-6400 1G DDRII 800 Corsair VS512MB667D2 512M DDRII 667 GSKILL DDRII 1GB PC2-8500 1G DDRII 1066* GSKILL DDRII512MB PC2-5400 512M DDRII 667 Kingbox 1GB DDRII 667 1G DDRII 667 Kingbox 2GB DDR2 667 2G DDRII 667 Kingmax 1GB DDR2-667 1GB DDRII 667 Kingmax 1GB DDR2-800 1G DDRII 800 Kingmax 1GB DDRII 800 1G DDRII 800 Kingston DDR2-667 1GB 1G DDRII 667 Kingston DDR2-800 1GB 1G DDRII 800 Kingston KVR667D2N5/2G 2G DDRII 667 Kingston KVR800D2N6/2G 2G DDRII 800 Kingtiger 1GB DDR2 800 1G DDRII 800 Kingxcon 1GB DDR2 667 1G DDRII 667 OCZ PC2-8500 SLI Ready EPP 1G DDRII 1066* OCZ PC2 5400 512MB Dual CH 512M DDRII 667 OCZ PC2 6400 1GB 1G DDRII 800 Samsung 1GB DDR2 667 1G DDRII 667 Samsung PC2-5300U-555-12-D3 512M DDRII 667 *Run at 800MHz