Finally two new pieces for my XP+Vista C2Q build have arrived.
One is the other set of Kingmax DDR2-800 MHz RAM.
For some reason the motherboard was very picky about which stick goes to which slot. At first I thought the new sticks might be faulty, but no.
It only works if the new sticks go to DIMM0 and DIMM2 and the old sticks to DIMM1 and DIMM3.
This way WinXP-32 can use 3.25GB of the 4GB RAM. It was to be expected. Aida64 memory tests found no issues, I'll give it some stress test this weekend.
The other is an AT-to-PS/2 adapter so I can actually use my keyboard of choice, which is an unbranded BTC 5139.
Really nice sounding keyboard. It maybe even beats the the ASUS Strix Tactic Pro I use for my daily driver.
https://youtu.be/RJNE27sztSo
And it's a really sturdy one. Though not as heavy as the Strix.
Now I only need to free the drive I want for Vista. I was also thinking about adding a 250GB hard drive to store some disk images and have a shared drive between the two OS.