I tried a fresh installation from the hard drive, but I ran into the exact same wall... I actually had to call up a buddy just to get him to copy the WLAN driver from a CD onto a thumb drive,
since there was no way for me to run it from a disc when my optical drive isn't responding, and I'd completely forgotten to move the setup files over to my D: partition before starting the install..
so, naturally, I spent a few hours totally disconnected from the internet, haha.
The motherboard just won't recognize the PCI Express x16 slot or the DVD ROM at all.. And following those registry fixes doesn't help my DVD drive situation either, mostly because I don't even see UpperFilters or LowerFilters listed, which implies I'm dealing with a different kind of headache altogether..
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
3. In the right pane, right-click UpperFilters, and then click Delete.
4. Click Yes to confirm the removal of the UpperFilters registry entry.
5. In the right pane, right-click LowerFilters, and then click Delete.
6. Click Yes to confirm the removal of the LowerFilters registry entry.
7. Exit Registry Editor, and then restart the computer.
A lot of people swear by this fix, but the consensus is that if you don't see those specific filter entries in your options, you're facing a much deeper issue.
Well, I certainly don't have them..

When both the PCI Express slot and the DVD ROM fail simultaneously, my first instinct was to blame a faulty power supply,
but I've already swapped it out for another 500W unit that I know works. Even though it's just some
cheap, off-brand unit, it should be plenty since my graphics card is a low-profile model that would run fine on even 350W—so I can rule out the PSU.
At this point, my money is on the motherboard itself being damaged; it’s been sitting unused for years, after all.
I've even tried swapping out two different IDE cables, but no luck there either.. It’s also been acting strange in Windows, where the DVD tray
will occasionally open and occasionally won't. That feels odd to me, because if the power supply is functioning correctly, the tray
should ideally pop open whenever it's prompted, right? Regardless of whether the system recognizes the drive, as long as
it has power, the mechanism should work. The only time it consistently behaves
is during the initial Windows boot sequence; once I'm actually in the OS, it becomes incredibly stubborn or just refuses to budge.
To make matters worse, the DVD drive isn't showing up in Device Manager, and it isn't even visible in the BIOS!! On my previous motherboard, I never had a single issue with the optical drive or the PCI Express port.. everything worked perfectly.