I'm assuming you actually have two physical hard drives, not one hard drive with two LOGICAL drive partitions, which is what brand name systems come with.If the same drives are connected to the same SATA headers as they were before, and the settings in your bios Setup are the same, there should be no change to your dual boot situation.
I sounds like something must be different.
If you supply your exact Presario model number we may be able to look at a manual for it and puzzle that out.
E.g.
- some mboards will only detect a SATA drive partition as bootable if the drive is connected to certain SATA headers, but they should still both be detected by the bios.
- some mboards won't detect a SATA drive connected to a SATA header designated as slave or secondary unless there is also a SATA drive connected as master or primary on the same SATA controller. In that case two drives must be both connected to SATA headers designated as master or primary otherwise.
The boot.ini file that makes the dual boot work is on only one of the two hard drives. That drive must be before the other one in the boot order in your bios Setup settings if you want to use that same boot.ini file.
You can easily make a new boot.ini file to restore your dual boot situtation if youhave connected the drives differently than before, but both hard drives must be seen by the bios, and both Windows installations must be seen by the bios as being on bootable partitions on those drives.
"After having it diagnosed as a failed motherboard......"
Did you diagnose it or did someone else?
If it was you, or if the other person is not an expert, the most frequent reason a system won't boot is the computer power supply is defective or dead.
