Most likely none of the old hard drives from the motherboard that burnt are no longer any good. Would be worried about the ram to. You don't mention what caused these parts to burn up. Nor what your specs are for either the ram or motherboard. You may want to post more info. So someone can help you.
"Most likely none of the old hard drives from the motherboard that burnt are no longer any good."
The hard drives are good. I have 5 spare hard drives. They are not from the motherboard that had a burn-accident. And these spare hard drives are used often on different PCs.
"Would be worried about the ram to."
I use a live CD to see if the RAM can be found on MB b. Yes, they are found. Does this indicate that the RAM sticks are still good? What do you think they should be worried about?
"You don't mention what caused these parts to burn up. "
Bought a second hand PSU for testing. It started the PC if HDD was not connected to the PSU. The SATA power connector might not be connected to the HDD, I thought. So I tried a second time, and inserted the HDD to the connector tightly. Power on. A burst & smell. The HDD was burnt and the hard drive DRIVERS on the MB were damaged.
"You may want to post more info. So someone can help you."
Here they are, but I do not think it has anything to do with what the system and components are. Take any hardware, it is hard to understand what an accident happens on a motherboard and the damage affects another motherboard.
PC : Acer aspire M5700,
OS : Windows 7 Pro. 32b.
CPU: Intel Core2 Quad CPU，
RAM: DDR2 800 SDRAM 4G，
GPU: Removed & use on board Intel® G45，
PSU: Liteon 6301-08Ak, replaced by RM650x for test.
MB : G45T AM2 V:1.0
HDD: WD600BEVS Scorpio 60GB
BIOS:American Megatrends V.02.16