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BIOS Programming and WTD: 486 bits
My question is, my old 486 pc has an EPROM bios chip, and firmware.com do a
replacement EEPROM chip on a daughterboard to make the computer Y2k compatible etc. Anyway, would it be possible to get a copy of the new flash bios, and have someone write it to an EPROM chip therefore doing away with the need for a daughterboard? Last question: Where would i find a 27C010 IC (32pin) and someone who has the means to programme it for me? (I've see the projects for building your own writer online but it would take up too much time). Finally, does anyone have any old 486 bits they no longer require? I mean anything, prefebly in north west england but i do travel quite alot on little adventures. To be used for an old programming course and nostalgia. I'd like to collect as much as i can so i don't end up with non working parts i haven't got spares for when i'm building a new 486 and i can pass them on to the next person who asks. Thanks Paul |
#2
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Check out alt.electronics.
On Fri, 28 Nov 2003 01:00:20 GMT, "'Show" wrote: My question is, my old 486 pc has an EPROM bios chip, and firmware.com do a replacement EEPROM chip on a daughterboard to make the computer Y2k compatible etc. Anyway, would it be possible to get a copy of the new flash bios, and have someone write it to an EPROM chip therefore doing away with the need for a daughterboard? Last question: Where would i find a 27C010 IC (32pin) and someone who has the means to programme it for me? (I've see the projects for building your own writer online but it would take up too much time). Finally, does anyone have any old 486 bits they no longer require? I mean anything, prefebly in north west england but i do travel quite alot on little adventures. To be used for an old programming course and nostalgia. I'd like to collect as much as i can so i don't end up with non working parts i haven't got spares for when i'm building a new 486 and i can pass them on to the next person who asks. Thanks Paul ~~~~~~ Bait for spammers: root@localhost postmaster@localhost admin@localhost abuse@localhost ] ~~~~~~ Remove "spamless" to email me. |
#3
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"'Show" wrote in message ... My question is, my old 486 pc has an EPROM bios chip, and firmware.com do a replacement EEPROM chip on a daughterboard to make the computer Y2k compatible etc. Anyway, would it be possible to get a copy of the new flash bios, and have someone write it to an EPROM chip therefore doing away with the need for a daughterboard? Last question: Where would i find a 27C010 IC (32pin) and someone who has the means to programme it for me? (I've see the projects for building your own writer online but it would take up too much time). Finally, does anyone have any old 486 bits they no longer require? I mean anything, prefebly in north west england but i do travel quite alot on little adventures. To be used for an old programming course and nostalgia. I'd like to collect as much as i can so i don't end up with non working parts i haven't got spares for when i'm building a new 486 and i can pass them on to the next person who asks. Thanks Paul seems like a lot of hassle for a 486 - Pretty much all my 486 stuff came out of skips at commercial premises - don't seem to get them any more - mostly all P1 stuff getting thrown out these days. So if you do not mind contravening the Environment Act (theft from a skip) I would suggest you take a peek inside some skips by office buildings Failing that if you are really desperate, I live in the SW of England and I do have several (4 or 5) working 486 boards with cpus & ram and cards (including eisa stuff) filling a cupboard (as I upgraded my pretend enterprise network to P1) - I had this notion that one day I might build a Beowulf cluster with them - but I probably never will. So I suppose they are really going spare. I don't like giving out my email - but if you are interested say so on this thread and I will reply to your address. Paul |
#4
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I don't suppose you could drop a couple of simms and a cpu in a jiffy bag
for me could you? Hoping for at least a DX2/66 to go in my all new 486 and 2 x 32mb 72pin non-parity. Perhaps a 1mb or 2mb graphics card ISA/VESA? Thanks Paul "Hippy Paul" wrote in message ... "'Show" wrote in message ... My question is, my old 486 pc has an EPROM bios chip, and firmware.com do a replacement EEPROM chip on a daughterboard to make the computer Y2k compatible etc. Anyway, would it be possible to get a copy of the new flash bios, and have someone write it to an EPROM chip therefore doing away with the need for a daughterboard? Last question: Where would i find a 27C010 IC (32pin) and someone who has the means to programme it for me? (I've see the projects for building your own writer online but it would take up too much time). Finally, does anyone have any old 486 bits they no longer require? I mean anything, prefebly in north west england but i do travel quite alot on little adventures. To be used for an old programming course and nostalgia. I'd like to collect as much as i can so i don't end up with non working parts i haven't got spares for when i'm building a new 486 and i can pass them on to the next person who asks. Thanks Paul seems like a lot of hassle for a 486 - Pretty much all my 486 stuff came out of skips at commercial premises - don't seem to get them any more - mostly all P1 stuff getting thrown out these days. So if you do not mind contravening the Environment Act (theft from a skip) I would suggest you take a peek inside some skips by office buildings Failing that if you are really desperate, I live in the SW of England and I do have several (4 or 5) working 486 boards with cpus & ram and cards (including eisa stuff) filling a cupboard (as I upgraded my pretend enterprise network to P1) - I had this notion that one day I might build a Beowulf cluster with them - but I probably never will. So I suppose they are really going spare. I don't like giving out my email - but if you are interested say so on this thread and I will reply to your address. Paul |
#5
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"'Show" wrote in message ... I don't suppose you could drop a couple of simms and a cpu in a jiffy bag for me could you? Hoping for at least a DX2/66 to go in my all new 486 and 2 x 32mb 72pin non-parity. Perhaps a 1mb or 2mb graphics card ISA/VESA? Thanks Paul In theory I could cpu not a problem - will see what I have, maybe a dx 80, definitely DX 66's (which overclock to 80) - still use a 486 dx 100 as a router. You have no chance on the ram - any big 72pins are in the P1's - have a few 4mb 72 pin sims and millions of 30pin. I was running NT4 on the 486s - partly coz of the memory size and also hdd size. Don't know about a video card - most are 256k or maybe 512kb - will have to have a root about. Can't do anything till after weekend now anyway Paul |
#6
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On Fri, 28 Nov 2003 01:00:20 GMT, "'Show"
wrote:: My question is, my old 486 pc has an EPROM bios chip, and firmware.com do a replacement EEPROM chip on a daughterboard to make the computer Y2k compatible etc. Anyway, would it be possible to get a copy of the new flash bios, and have someone write it to an EPROM chip therefore doing away with the need for a daughterboard? Yes. If you have a BIN file compatible with the EEPROM programmer's software, or access to an EEPROM with the code you're looking for, you can transfer it to a new EEPROM easily. There may be legal issues involved, but there aren't too many technical hurdles as the hardware's pretty easily to get. Last question: Where would i find a 27C010 IC (32pin) and someone who has the means to programme it for me? (I've see the projects for building your own writer online but it would take up too much time). Jameco carries the eeprom burners and the 27C010 eeprom chips. (www.jameco.com) I'm sure you can find a similar supplier in Europe if you do your own search for "electronic components". As for finding someone who has the means to programme it for you, I wouldn't know. Off hand, I'd say someone who owns an old style eeprom programmer (not the smartcard type). You'd also need access to a strong UV lightsource if you screw up (for erasing it) and I would recommend you put something opaque over the clear portion of the chip housing (for obvious reasons). Just don't use electrical tape. It leaves a residue which is tough to remove if you need to erase the chip at some point -- you never know. SNIP Thanks Paul ---------------------------------------- Thanks, MCheu |
#7
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On Fri, 28 Nov 2003 01:00:20 GMT, "'Show"
put finger to keyboard and composed: My question is, my old 486 pc has an EPROM bios chip, and firmware.com do a replacement EEPROM chip on a daughterboard to make the computer Y2k compatible etc. Anyway, would it be possible to get a copy of the new flash bios, and have someone write it to an EPROM chip therefore doing away with the need for a daughterboard? If you are using Win9x, and if your original non-Y2K-compliant BIOS is one that gets the year wrong but not the day and month (eg Award), then add the following lines to your autoexec.bat file (watch the wordwrap in lines 2 and 3): ================================================== ====================== :: This routine corrects the date on those machines whose BIOS :: incorrectly reports the year. The correct year, eg 2003, :: should be entered on line 2. :: :: - tested in Win95B @echo off %comspec% /cfor %%v in (1 2) do prompt call dummy1 $D$H$H$H$H2003$_| find /v /i "prompt" dummy2.bat %comspec% /cfor %%v in (1 2) do prompt echo %%2 %%3 %%4 %%5 %%6$B date $G nul$_| find /v /i "prompt" dummy1.bat call dummy2.bat del dummy?.bat echo on ================================================== ====================== - Franc Zabkar -- Please remove one 's' from my address when replying by email. |
#8
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Hi, I'm sorted for CPUs now thanks to Julian Hales of Sheffield. It's hard
drives now, around 300mb - 1gb? Thanks Paul "Hippy Paul" wrote in message ... "'Show" wrote in message ... I don't suppose you could drop a couple of simms and a cpu in a jiffy bag for me could you? Hoping for at least a DX2/66 to go in my all new 486 and 2 x 32mb 72pin non-parity. Perhaps a 1mb or 2mb graphics card ISA/VESA? Thanks Paul In theory I could cpu not a problem - will see what I have, maybe a dx 80, definitely DX 66's (which overclock to 80) - still use a 486 dx 100 as a router. You have no chance on the ram - any big 72pins are in the P1's - have a few 4mb 72 pin sims and millions of 30pin. I was running NT4 on the 486s - partly coz of the memory size and also hdd size. Don't know about a video card - most are 256k or maybe 512kb - will have to have a root about. Can't do anything till after weekend now anyway Paul |
#9
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'Show wrote:
Hi, I'm sorted for CPUs now thanks to Julian Hales of Sheffield. It's hard drives now, around 300mb - 1gb? Thanks Paul I've got about six of them, God knows why, but I'm in New Zealand. -- ~misfit~ "Hippy Paul" wrote in message ... "'Show" wrote in message ... I don't suppose you could drop a couple of simms and a cpu in a jiffy bag for me could you? Hoping for at least a DX2/66 to go in my all new 486 and 2 x 32mb 72pin non-parity. Perhaps a 1mb or 2mb graphics card ISA/VESA? Thanks Paul In theory I could cpu not a problem - will see what I have, maybe a dx 80, definitely DX 66's (which overclock to 80) - still use a 486 dx 100 as a router. You have no chance on the ram - any big 72pins are in the P1's - have a few 4mb 72 pin sims and millions of 30pin. I was running NT4 on the 486s - partly coz of the memory size and also hdd size. Don't know about a video card - most are 256k or maybe 512kb - will have to have a root about. Can't do anything till after weekend now anyway Paul |
#10
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On Tue, 02 Dec 2003 20:53:33 GMT, "'Show"
wrote: Hi, I'm sorted for CPUs now thanks to Julian Hales of Sheffield. It's hard drives now, around 300mb - 1gb? Thanks Paul Usually 540 MB tops (1024 cyls, 64 secs, 17 hds), although one of my 486es has the same version of Award BIOS as on my Pentium I, which perfectly accepted a 3.2 GB drive. "Hippy Paul" wrote in message ... "'Show" wrote in message ... I don't suppose you could drop a couple of simms and a cpu in a jiffy bag for me could you? Hoping for at least a DX2/66 to go in my all new 486 and 2 x 32mb 72pin non-parity. Perhaps a 1mb or 2mb graphics card ISA/VESA? Thanks Paul In theory I could cpu not a problem - will see what I have, maybe a dx 80, definitely DX 66's (which overclock to 80) - still use a 486 dx 100 as a router. You have no chance on the ram - any big 72pins are in the P1's - have a few 4mb 72 pin sims and millions of 30pin. I was running NT4 on the 486s - partly coz of the memory size and also hdd size. Don't know about a video card - most are 256k or maybe 512kb - will have to have a root about. Can't do anything till after weekend now anyway Paul |
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