I have an old amd 2800 custom built pc
Has 1g ram 2 cd/rw drives and a 80g harddrive. All are IDE & a 1,44nb floppy drive.
The bios sees all of the above. Orginaly I just wanted to reinstall win vista on this thing. But as near as I can determine the bios is messed up or something close to this that runs with it. Even when I boot into the bios I only have about 30 seconds and then it locks up. When I let it boot I get the famed boot mgr not found . Ive tried all the fixes Ive found here and elsewhere. I even reformated the HD in another computer. I also tried to boot with an iso usb drive with windows and also with just partition wizard to see if I could get into the HD. Same answer no boot mgr. I tried a sata HD and a sata cd/rw drive, I can see the them both in the post but thats it. So Im pretty sure this thing is scrap unless I could possibley reflash the bios. But I dont think this can be done if I cant get past the post.
SO how can I flash the darn bios?????????????????????
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Oh yeah it and ASROCK MB K7S8XE+
American megatrends released 11/11/2003
I even installed Vista on the HD on another similar but not the same pc and then tried to get it to boot on the problem pc. Thinking if I could get it into safe mode I mght be able to do something. All i get there is the failed to start screen with the 4 choices.
Safe mode w/networking
Safe mode with command Prompt
Last known good configuration
Start Windows normaly
From your descriptions in your 1st post, it doesn't sound like a BIOS problem, but rather a HDD problem. Either that 80GB drive's dead or starting to go dead. Another possibility, since this is the good old IDE, is that someone's been messing around with the master / slave jumper setting.
Also worth to mention, AMD 2800, presuming its Athlon XP 2800, came out around late 2002 or early 2003. That's 10 years ago! It's dinosaur age in terms of computer technology. It's also the very early days of SATA. The SATA you have it's likely SATA I, with 150MB/s transfer rate. If you intend to find a replacement SATA drive, it has to be SATA I. There might be a BIOS cap for the size of drive you use too. I've seen early BIOS with a 120GB drive size limitation.
Good luck bring back a dinosaur to life, hope you can find some old parts for replacement.
Edit: From your second post, if you can see those Windows boot options, you're already past POST. Have you tried just select Safe Mode then hit Enter?
... Even when I go into the bios just to look at or change the boot order I only have about 30 seconds and then it crashes and locks up so I have to do a reboot...
One thing I can think of from that description is that the BIOS chip went out of battery. There's a Lithium coin shape battery (type CR2032) that powers the BIOS chip. After 10+ years of use or lack of use, it's certainly possible it went dry. When that happens it forgets the boot orders or any other settings once you power off the PC. Easiest way to verify this is to see if the Date / Time setting in the BIOS is reset to certain default date / time value after reboot.
The fix for this is very easy, CR2032 is abundantly available in department stores. Go buy a pack, then replace the old one, done. Let's hope it's just that. If not, post back.
I think the vista is failing to load on the available hardware. Why don't you load an XP and then try to load a vista onto this system. Windows XP will act as a base and then you can use vista as a dual booting system.