What are the BIOS settings I need to run my G-Skill memory (PC2 8500) at 1066 on this Gigabyte motherboard (GA-EP43-UD3L)? If I install the memory (at #1 and #3) and go with the automatic settings, BIOS detects all 4Gs, but Windows 7 (64-bit) halts at the "gathering fireflies" logo and reboots.
Now if I adjust to run the memory at 800 (see the screenshot below), Windows 7 loads and I'm able to do quite a bit, but I was able to run my memory at 1066 on the mobo I just replaced (GA-P35-DS3L) automatically, and the difference in speed is very evident when game levels are loading or with the occasional lag before executing commands.
Any assistance would be appreciated. And if you need to see the BIOS settings as they are right now, let me know and I'll post those shortly.
Check the ram label for voltage requirements, and adjust the memory voltage in the bios. Or check newegg for the specs. The recommended timings on cpuid's screen should work fine. And if your board says it will run ram at 1066, then try manually setting it at 1066 (or 533; many bios list the ram speed at half the actual speed).
I have the same motherboard and RAM, and I was only able to run it at 800MHz instead of 1066MHz until the F8 BIOS were released. After the BIOS update, I had to change my voltages, but now my computer is running stable with 1066MHz RAM!
DRAM Voltage: 2.1V (default 1.8V)
North Bridge / MCH Voltage: 1.2V (default 1.1V)
If you'll list processor and how many DIMMs, I can give you a full parameter set; if you have any other than stock cooling, I include a 'gentle', easy-on-the-hardware (but noticeably faster!) overclock...