No Bootable media

[Max47]

My Win 7/32 Pro was fine in the morning, then few hours later couldn't wake it up from Stand-by. Reboot didn't help. Tried original Win disk - seems to be running infinite boot loop. Eventually, got to Repair (not Install now) - another infinite loop.
Got to System Recovery Options showing Win 7 / Part size 0 / Part Loc G: (!!!).
(I have 2x500 Gb Maxtor non-RAID SATA drives, 2 partions each).

Tried 3rd party rescue. One shows only a few files on C: and freezes on selecting
2nd partition (E, but shows all files intact (seemingly) on 2nd drive partition (D. If I remember correctly that drive was setup as Windows Backup drive.
When I try to "Boot from Hard Drive" - "No bootable medium found"
Parted Magic 6.6 shows error "Cannot allocate resource for mainboard", but
my internet search suggests to ignore this Ubunktu message.

Any help will be appreciated.
My PC is self-assembled Asus P6T v.2 dlx, Intel 920, 3 Gb Corsair mem in 3-channel config,
2x500 Gb Maxtor SATA, Sapphire 5770 (had occasional problems with "...display driver stopped working..., even replaced Antec 500 W PS with Corsair 750 W - didn't help).
In BIOS both HD are recognized, all volages seem correct, CPU temp. 45C - ideal.
MEMTEST shows no errors.

 

[Maguscreed]

I would be going to maxtor for their drive testing utility. I'm sorry to say it sounds like whatever crash you experienced either killed your hard drive, or was caused by the harddrive failing in the first place.

Granted this is simply a guess based on the information provided, but there is no doubt something is wrong with the drive regardless of reason or cause.

 

[Max47]

HD crash was my 1st thought (actually 2nd - first was virus).
But somehow BIOS drive recognition made me belief that it's OK.
BIOS just recognizes the interface.

Thank you for Install/Repair suggestion - won't work if there is no installation media.
I'm planning to install Windows on a new drive, install all updates and then somehow try to use the backup(s) which I have on the second drive. I'd appreciate help with how to use those backups.
Before doing this I'll just try the last resort which remember reading long ago about crashed drives - to keep it overnight in freezer.
If it works after this, one might have just enough time to do a backup.
Thank you all and thanks in advance for any suggestions.