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So I bricked a bios

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    So I bricked a bios

    about a year ago, I was at my local computer recycling place, helping dismantle computers (they give you HUGE discounts if you help disassemble computers. i'm talking 75-95% off normal prices) And I opened a rackmount case t find a dual asus pentium pro motherboard. (p/i-p65up5)

    long story short I got 2 1m processors and some 32mb edo simms cheap on ebay and when I put them in the board it diddnt like the 1mb cache chips. Well lets upgrade the bios I said! and after the flashing process I found that I had selected the wrong bios from asus and completely bricked it.

    the board still posts.... kinda. the video card will display its bios post then it will sit there like a rock. What I want to know is, given the caliber of people here SOMEONE has to have access to a eprom flasher. Its a real common chip:

    intel FLASH

    If there was some way I can send you my chip and you can flash it with the correct bios I supply then that would make me ever so happy. I'd be willing to pay for all shipping costs + whatever you thought was fair.

    pictures of the board(s):

    So basically its been sitting on my shelf for about a year. In my attemopts to find a replacement board I found out about the p/i-p65up8 which is the same board but on steroids as it has scsi onboard and is a full AT size motherboard. But I can't even find a PICTURE of that board, let alone someone who wants to sell me one...
    It is a mistake to think you can solve any major problems just with potatoes.

    dang man.,.. been dieing to get a dual ppro board (and another matched 200mhz 1mb chip) .... yea... got a nice set of 12mb voodoo 2s to throw in it.

    Anyway this will probably get moved to the off topic area by mbrtuman as it isnt "vintage" enough. for this section.

    Wanted: IBM XT/286 Model 5162 <-!!!


      PM me if you can't find anyone close to do it. This is the 32-pin PLCC, right?
      Reach me: vcfblackhole _at_ protonmail dot com.


        Damn. That is a really nice board. AND It's AT! It puts my zombie AST server board to shame.
        [Need something to waste time on? Click here to visit my YouTube channel CelGenStudios]
        [No time for videos? Click here to visit my Twitter feed @CelGenStudios]

        = Excellent space heater


          This is a shot in the dark (it's a setting on newer computers) but have you looked for a reset jumper or anything on the motherboard? A lot of newer systems (again, PPRO probably doesn't but who knows) have that for that exact scenario and to reset the bios back to a default image/settings.

          I'm sure a few folks here might have a rom burner also. Do you happen to have the copy of the previous bios image?
          Looking to acquire: IBM 5100, Altair 8800



            I can flash 28F001BX's if any one needs it done. I'm in central Wisconsin, so I don't know who's closer.
            I don't have any handy, so I'd actually need the chip in hand.
            Don't know who's closest.


              The general rule of thumb is, ALWAYS quadruple check your BIOS update...
              IBM PS/2 Model 25, NEC V30 8MHz, 640KB RAM, ATI VGA Wonder XL, 2GB SSD, Ethernet, DR DOS 6/GeOS, Xircom PE3 Ethernet


                boot block

                barythrin said...but have you looked for a reset jumper or anything on the motherboard?
                That's a real possibility and definitely worth looking in the manual for.
                The 28F001BX is organized into 1 8kb lockable boot block, 2 4kb parameter blocks, and 1 112 kb main block.
                It's tight, but you could hide some fail-safe code in there, I think.


                  28F001BX packaging

                  My databook lists the 28F001BX as coming in a DIP & CLCC. Is the thing actually socketed ?


                    Originally posted by patscc View Post
                    My databook lists the 28F001BX as coming in a DIP & CLCC. Is the thing actually socketed ?
                    I don't see any LCC sockets in the photo. I wonder if it's the DIP in the middle of the board along the rear? If the chip is soldered in, this could get to be ugly.
                    Reach me: vcfblackhole _at_ protonmail dot com.


                      Originally posted by patscc View Post
                      That's a real possibility and definitely worth looking in the manual for.
                      The 28F001BX is organized into 1 8kb lockable boot block, 2 4kb parameter blocks, and 1 112 kb main block.
                      It's tight, but you could hide some fail-safe code in there, I think.
                      you're exactly right! that 8k chunk is where we did a bios recovery boot block back in the day, about 6 years ago for me. It was most certainly a tight fit-you'd only get beep codes and a blank screen and then it would try and access the floppy drive to self recover.

                      phoenix bios had a LPT port key that would force a boot block recovery, and there is usually a jumper as well. Not sure how other bios vendors did it.

                      the LPT key was simply a loopback with a couple specific pins tied together.
                      I might even be able to find mine tucked away in an old desk drawer somewhere at work.

                      You needed a special BIOS recovery diskette though, and that might be pretty difficult to locate.

                      I'm in minneapolis, and my eeprom burner is currently hooked up. if you can send me the chip and a bios to throw into it, I'd be happy to try and re burn it too.


                        yes the chip is easily removeable. its circled in yellow in the picture, 32 pins. its right next to the usb header.

                        This board is so cool, i have to get it running. I mean if I found the daughter board I could replace the dual p-pro's with pentium 2's. the p65up8 board does the same thing too but that board will take ATX power supplies to boot. Even dual socket 5's...

                        but back on topic, I did try to reset the bios via jumper, which was a no-go. But whats this I hear about a recovery mode? There is no mention of it in the manual; in fact the only real mentioning of the bios is that it must be changed when you install a different cpu card. Which is probably where I went wrong to be honest...
                        Last edited by luckybob; February 17, 2009, 07:13 PM. Reason: helps if I actually include the picture eh?
                        It is a mistake to think you can solve any major problems just with potatoes.


                          32 pins

                          Should have 16 pins on each side, right ?



                            What's the exact model of the board ?
                            Asus has several different ones listed under p65up5


                              I'm going to guess it had award BIOS on it?

                              here's some hope, maybe:

                              If you've got the ROM it should have, that tutorial looks pretty easy.
                              Otherwise, since it is easily removable, pull it and send it to me. I'm ~85% sure my burner can handle that part.