Gigabyte's upcoming beta bios for EP45 serial
has improved DDr2 bandwidth to DDR2-1333 and higher.

tip: load optimized,in MIT select divider of 4A(266A) or 4B(333B)
change vid to match your porcessor or leave it auto then, leave bios
if your D9GMH or D9GKX not stable or need to improving latency by PL
add more voltage both on Northbridge(MCH) & DDR2 voltage.

i'll update other bios soon.
for GA-EP45 DS3R, DL this bets bios F9L
http://pic.xfastest.com/hicookie/Gi...th/ep45ds3r.f9l

Testbed:
INTEL E8600 STOCK HSF
GA EP45 DS3R,F9L
Team Group, Xtreem DDR2-1300 2GBkit
CL6-6-6-18 2.35v-2.45v
WD 250GB SATA
HighPower 1KW
NV 7900GT

DDR2-1333 CL5 & PL:4 Bandwidth vdimm: 2.25v


DDR2-1333 CL5 Super Pi 32m vdimm 2.25v


555FSB & 1333 bandwidth near to 11k,and low-latency at 47.3ns


some other bandwidth,
DDR2-1360 cas 5


FSB600 & 1200C5


DDR2-1400+ valid