Assuming your parts are compatible and supported, I might be able to help. I should know cuz my LT is from RMA.
So your new board doesn't post, clear cmos & try each stick of ram in each of the slots. 2 sticks = 8 combos. Once the pc posts, go to bios, load optimized defaults, hold on, go to Genie > Voltage, up DRAM volt to 2.1v or specs, press F10 to save & exit. If the pc posts again, time to install the other stick of ram.
Once you get your pc up & running, there's one more thing to do in bios. Go to bios > Integrated Peripherals > OnChip IDE Device, set this page up like so:
RAID
DISABLED
ENABLED
RAID+IDE
This should get you boot Windows, but I found that installing XP on DFI X38 needs 2 different bios settings. Yup, that's why I switched to Vista 32 which runs EVERYTHING XP does except the drivers. If the above settings don't boot CD/DVD, change them to:
IDE
DISABLED
ENABLED
Native IDE
These will boot the cd, but not XP. You'll see "NTLDR is missing" or something like that. You might wanna try ACHI if you're installing XP. By the way, tapping <ESC> key will bring up a boot menu that lets you choose which drive to boot.
Long story short, the default bios settings don't work. You don't wanna know how many times I installed XP/Vista/Linux to find this out.
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