I have the following mainboards and power supplies available. They have been stripped out from PCs I've decommissioned. They are proprietary - the mainboards need these specific power supplies.
I have uploaded pictures of each item.
Board One
Socket 1155 (2nd Gen Intel)
PCBWP0KCY1PVSA
SP#611834-001
DG#611794-000
AS#611793-002
REV 0K
BACH REV A
Board Two
Socket 1155 (2nd Gen Intel)
PCEYU0HCY0U3GB
SP#611834-001
DG#611794-000
AS#611793-003
REV 0H
BACH REV B
Board Three
Socket 775 (Core2Duo)
PAUFD0KRWZZ1WX
SP#536884-001
DG#503363-000
AS#536458-001
REV 0K
Board Four
Socket 775 (Core2Duo)
PABDH0F9VX1W0M
SP#462432-001
DG#460970-000
AS#460969-001
REV 0F
Mars REV B
Proprietary HP:
HP/Delta 611481-001 / 613762-001 / DPS-240TB A REV 00
HP/AcBel 611481-001 / 613762-001 / PC9055
HP/Delta 460974-001 / 462435-001 / DPS-240MB-3 A REV 00F
HP/Lite-On 611481-001 / 613762-001 / PS-4241-9HB
Appear to be ATX:
HP 457694-001 / 460025-001 / PS-6361-4HF2
Fujitsu S26113-E517-V50 GS:03 REV:07 / DPS-210FB A
The Fujitsu is marked "Coil whine" and "Bad fan".