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Jimmy
March 29th, 2012, 11:43 AM
eBay item number 110841990657 appears to be an IBM 5150 PC Rev A. It was hard to determine from the photos, so I questioned the seller about the number of screws that held the case in place and what was on the motherboard. It does appear to be in pretty rough shape and the starting bid in $70.00 plus $45.00 for shipping.

Ole Juul
March 29th, 2012, 12:05 PM
Well $70 is not an "as is" price without a picture of the inside. What's with the bolted on axillary fan? Is it just a quick fix, or is the PS the wrong one or what? One wouldn't have to ask all these questions from a conscientious seller. There's too much wrong here.

Lorne
March 29th, 2012, 12:36 PM
Judging by the serial number sticker, it would have had an early model (16kb-64kb) board in it, but who knows what its got now becaise the power supply has obviously been changed (silver vs black).
How do floppy drives "spin up" I've got hard drives that spin up, but none of my floppies do.
It would be nice if the photographer wasn't partially blind, and maybe had a light bulb he could shine on it - then again, with more light you might see a bunch of stuff he doesn't want you to see, or you might not want to see.
It could obviously use a new set of cork pads. :)

barythrin
March 29th, 2012, 12:41 PM
$80 to ship it here :-) But that motherboard model is the one that had a huge price craze a few years ago. Not sure if it's still the case today but would be interesting to watch.

SpidersWeb
March 29th, 2012, 12:56 PM
$80 to ship it here too, but I'm in New Zealand, would've thought more like 200-300. Not sure if that's right or if I bid I'd run in to trouble.
$70 + $80 = $150USD delivered which is less than I paid for my 5160 (base unit only).

So not a bad deal for me, but sounding like it's almost a 'rip' for you guys haha
The fact the floppy light comes on indicates to me that the motherboard boots, PSU works, FDD controller works and the case looks good, so for me I'd pay that no problem.

Compgeke
March 29th, 2012, 02:09 PM
I would be worried about finding an original motherboard in there, I own a Turbo-Cool Powersupply and it's an AT power supply. I'm not sure what the XT one was, but I'm fairly certain it wasn't AT style.

SpidersWeb
March 29th, 2012, 02:37 PM
They are "AT" style. Not sure why they're called AT power supplies because they're no different to what is in my 5150 or 5160 except a higher wattage output. Plugs are all the same, and form factor is the same. Upgrading the PSU would have made sense because you're not supposed to run hard drives off the original 5150 63W power supply.

But you are correct, a non-original motherboard is still a concern, even if it's a turbo XT clone replacement :/

vwestlife
March 29th, 2012, 03:36 PM
But you are correct, a non-original motherboard is still a concern, even if it's a turbo XT clone replacement :/

But an aftermarket XT/Baby AT-type motherboard wouldn't fit into a 5-slot 5150 case, at least not without some serious cutting and trimming of the case's metal to accomodate the differences in keyboard port and ISA slot placement.

There may have been a rare handful of aftermarket motherboards specifically designed to fit in a 5-slot IBM 5150 case (I have not seen proof; I'm just guessing about the possibility) -- in which case the collector's value of the board would easily equal or exceed that of the original IBM motherboard it replaced.

A much more likely chance is that the motherboard was swapped out for a 64-256KB board at the same time the aftermarket power supply was installed. Or at the very least, it could still be the original 16-64KB board, but with the newer 1982 ROM chips installed.

The only way to tell for sure would be to kindly ask the seller to remove the cover and take some photos of what's inside!

Jimmy
March 29th, 2012, 03:50 PM
I asked the seller a couple of questions and he responded very quickly, I just emailed him and asked if he could post some pictures of the inside of the case. I asked for a closeup of the motherboard and the cards that are installed.

I do not need the motherboard,power supply, case or any of the cards, but do need a case cover. If someone just wanted it for parts, I could ease some of the pain of the cost by purchasing the case cover, if it turns out to be a Rev A. motherboard

mikey99
March 29th, 2012, 04:53 PM
There was another 5150 Rev A listed on the auction site a week or so ago , but it was missing the case cover.
It had the black PS and correct motherboard..... I was tempted to buy it but I already have a Rev A.

Jimmy
March 29th, 2012, 07:10 PM
I did buy it for parts, I have a Rev A. that I bought that I really did not know what I was buying. I wanted the black power supply and other parts, in case something failed on that machine. When I hooked a monitor and keyboard to the one without a cover, it booted to dos fine other than a 131 cassette error, which someone on here, pointed out was probably a stuck relay. It is missing the black card fillers panels and a case cover. Other than that it runs fine. After I found out it still boots, it seems a shame not to try and restore it. I guess I could paint some card filler panels black but the newer style chrome one are not as wide as the originals ones.

mikey99
March 30th, 2012, 06:46 AM
Good to hear that another forum member bought that ! It seemed like a fair price at the time.

Will the Rev B case cover fit on the Rev A frame ? I realize it has additional screws but
just wondering ......

Cimonvg
March 30th, 2012, 07:03 AM
yes, but he was not selling outside us.. :huh:
/cimonvg

There was another 5150 Rev A listed on the auction site a week or so ago , but it was missing the case cover.
It had the black PS and correct motherboard..... I was tempted to buy it but I already have a Rev A.

bettablue
March 30th, 2012, 07:43 PM
Nice catch Lorne; I've noticed on E-Bay that when someone posts bad pics, they ARE trying to hide something. Usually though, I can use Photoshop to bring out the details they don't want you to see. Sometimes it's pretty obvious, sometimetimes even ugly, but in almost every case, they're hiding something.



Judging by the serial number sticker, it would have had an early model (16kb-64kb) board in it, but who knows what its got now becaise the power supply has obviously been changed (silver vs black).
How do floppy drives "spin up" I've got hard drives that spin up, but none of my floppies do.
It would be nice if the photographer wasn't partially blind, and maybe had a light bulb he could shine on it - then again, with more light you might see a bunch of stuff he doesn't want you to see, or you might not want to see.
It could obviously use a new set of cork pads. :)

twolazy
March 31st, 2012, 05:13 PM
Since we are on the subject of covers, would the cover for the 5162 fit a 5150? I have a spare 5162 chassis in my garage...

bettablue
April 1st, 2012, 02:35 PM
Since we are on the subject of covers, would the cover for the 5162 fit a 5150? I have a spare 5162 chassis in my garage...

Absolutely. The IBM 5150 Personal Computer, 5160 Personal Computer XT, 5161 Expansion unit, and 5162 - PC 286 all use the same case. All of the case parts are intercangable too, if I'm not mistaken. IBM had an expansion unit for the XT as well, but I forgot its model number. So all together there are five different models that used the same case design.

As an example; I actually had an empty non used 5160 case sitting around when I finally found the 5161 expansion unit. The expansion had a scratch that ran diagonally across the top, but everything else was in great shape, so I exchanged the case top from the XT and faceplate from the expansion unit. Now, my expansion is pristine! I honestly don't know if IBM had any more computers or accessories that used the same case though.

Hope this helps. I know there are a couple of people looking for a case for the 286. You might want to post something in the forums if you want to sell the case you have.

twolazy
April 1st, 2012, 07:22 PM
Good info to know. I always thought the 2 were interchangeable, just never tried... Since we are on subject of 5150s, seems to be yet another on fleabay, this one case and mobo only... 67.96 shipped

http://www.ebay.com/itm/Vintage-IBM-5150-Computer-Case-and-Motherboard-Only-PC-XT-Free-S-H-/400287609692?pt=LH_DefaultDomain_0&hash=item5d3300335c

Shame it wasnt a 5162. I so need a mobo. :(

modem7
April 1st, 2012, 08:21 PM
Shame it wasnt a 5162. I so need a mobo. :(
Try an Internet search using 62X1025.

bettablue
April 2nd, 2012, 09:32 AM
I can't remember who it was here in the forums who has a 5162 that he was willing to sell. If memory serves me correctly, all he had was the case, mobo and power supply with an ISA memory expansion and a VGA graphics adapter. He had the original keyboard too, but that was about it. I went through my old messages and couldn't find anything. Maybe I deleted it while cleaning house. If I remember, I'll shoot you both a line.

Personally, the seller on E-Bay seems like he doesn't know what he has. I guess the price is OK, since he's offering free shipping. I just wonder where he got XT from. Maybe the upper case is from an XT.


Good info to know. I always thought the 2 were interchangeable, just never tried... Since we are on subject of 5150s, seems to be yet another on fleabay, this one case and mobo only... 67.96 shipped

http://www.ebay.com/itm/Vintage-IBM-5150-Computer-Case-and-Motherboard-Only-PC-XT-Free-S-H-/400287609692?pt=LH_DefaultDomain_0&hash=item5d3300335c

Shame it wasnt a 5162. I so need a mobo. :(

twolazy
April 2nd, 2012, 10:02 PM
I went and shot the guy on the 5150 some questions, mostly what model the board was. If it happens to be a 64kb system I might just bite on it. 68 shipped seems a pretty decent deal, provided the mobo works. I do have a spare 5162 case I can rob the psu from... hrm....

Jimmy
April 2nd, 2012, 11:06 PM
twolazy:

the guy is supposed to be sending me some pics of the motherboard and any cards installed as wll as other info about the PC. If you would like to see them, let me know. I really just need a case cover, I have two of the 64k rev a already but one is without a case cover, I purchased it just to have some spare parts. Now I am looking for a 5151 monitor 001 or 002.

Thanks,

Jimmy

twolazy
April 3rd, 2012, 01:09 AM
I can't remember who it was here in the forums who has a 5162 that he was willing to sell. If memory serves me correctly, all he had was the case, mobo and power supply with an ISA memory expansion and a VGA graphics adapter. He had the original keyboard too, but that was about it. I went through my old messages and couldn't find anything. Maybe I deleted it while cleaning house. If I remember, I'll shoot you both a line.



That would most likely be me! ROFL! Just realized it , going over the thread again. I have the 5162 thats nearly all original, sans motherboard. (motherboard is a 386sx clone of the AT board, which i reversed to a 286) :S I was thinking of separating with it to align my collection more, and could easily setup another system similar.

I also have another spare XT-286 chassis and PSU in my garage, that I love to make 100% original. Paid 15 for it at a local scrap yard. Seen it sitting in the back with some car batteries on it so I rescued it. :)

Was all excited I finally found what I wanted, sadly no. Inside was a baby AT socket 7 motherboard ROFL. One of these days I'll find the motherboards to complete at least one of them... I'm not paying over 100 dollars tho. Ambry.com has some for 45 shipped, im tempted...

Only XT I have thats truly complete is my 5150 atm. :(

Maverick1978
April 5th, 2012, 12:54 PM
Looks like we've another early 5150 that's a case only with some expansion cards and a single floppy. No mb. Not mine. (www.ebay.com/itm/190661489127)

bettablue
April 5th, 2012, 01:34 PM
That would most likely be me! ROFL! Just realized it , going over the thread again. I have the 5162 thats nearly all original, sans motherboard. (motherboard is a 386sx clone of the AT board, which i reversed to a 286) :S I was thinking of separating with it to align my collection more, and could easily setup another system similar.

I also have another spare XT-286 chassis and PSU in my garage, that I love to make 100% original. Paid 15 for it at a local scrap yard. Seen it sitting in the back with some car batteries on it so I rescued it. :)

Was all excited I finally found what I wanted, sadly no. Inside was a baby AT socket 7 motherboard ROFL. One of these days I'll find the motherboards to complete at least one of them... I'm not paying over 100 dollars tho. Ambry.com has some for 45 shipped, im tempted...

Only XT I have thats truly complete is my 5150 atm. :(

I know exactly what you mean about getting excited. That's how I was too when I nailed down the original 5161 expansion unit. I was STOKED for days! And then to have the seller deny my original offer of $125.00 only to counter with $40.00 only made it better. I almost peed my shorts! (Wait a minute, I'm a nudist, oh, sorry. TMI) Well y'all know what I mean. There is still one thing I want to finally get my grubby little mits on though. Sadly, I have made deals but things have been going all wrong. I want a 1st or 2nd generation of Compaq Portable so badly.... Like I said though. Things just keep popping up. And to top it all off, I'm still on disability after breaking my leg in November! This is really the pits!

Stone
April 5th, 2012, 01:53 PM
Something like this?

http://southjersey.craigslist.org/clt/2917285672.html

bettablue
April 5th, 2012, 02:04 PM
Something like this?

http://southjersey.craigslist.org/clt/2917285672.html

Naw. I want one of the earlier ones. That is a 3rd revision I believe. The one I really want only has a small screen, and the floppy drives all hidden behind the keyboard. When the keyboard is removed from the bottom of the computer, and the computer laid down, the display and floppy drives all face the user... These come available from time to time. I just have to wait till I have the money on my spending account.

vwestlife
April 5th, 2012, 03:03 PM
Naw. I want one of the earlier ones. That is a 3rd revision I believe. The one I really want only has a small screen, and the floppy drives all hidden behind the keyboard. When the keyboard is removed from the bottom of the computer, and the computer laid down, the display and floppy drives all face the user.

Here were the CRT-based Compaq Portables:

Portable (original)
http://oldcomputers.net/pics/compaqI.JPG

Portable (later revision with half-height drives)
http://www.drviragopete.com/resources/compaq_portable.jpg

Portable Plus: same thing but with 1 floppy + 1 hard drive instead of dual floppies
Portable 286: same thing but with 286 instead of 8088

Portable II
http://oldcomputers.net/pics/compaqii-2.jpg

Starting with the Portable III, Compaq switched to a "lunchbox" design with a flat panel display (first neon orange gas plasma, then later monochrome LCD) and the drives on the side.

dorkbert
April 5th, 2012, 03:50 PM
(Wait a minute, I'm a nudist, oh, sorry. TMI) Well y'all know what I mean. There is still one thing I want to finally get my grubby little mits on though.So... you're a nudist, but you wear mits? Just thought I do double check... :D

Stone
April 5th, 2012, 03:57 PM
So... you're a nudist, but you wear mits? Just thought I do double check... :DSince mits is slang for hands I don't get your point at all. Mits are not worn -- they're a body part. :-)

dorkbert
April 5th, 2012, 04:26 PM
sorry, when "mits" was uttered, I equated that to "gloves."

barythrin
April 5th, 2012, 07:47 PM
I thought he wanted an Altair. Regarding the original auction, it was reposted and seems (I think) to have some additional pictures. One of them I think is new that does seem to show 64 KB 256KB CPU (http://www.ebay.com/itm/VINTAGE-IBM-5150-Personal-Computer-PC-Desktop-/120890106737) I'm pretty sure on the motherboard (it's sorta an odd angle but I think it's the motherboard not the card). There's another one the same seller has here (http://www.ebay.com/itm/VINTAGE-IBM-5150-Personal-Computer-PC-Desktop-/110852291953) that surprisingly has a higher start price of $100 and already 1 bid. Not sure why but again I don't know that model well enough to determine motherboard revision from the screws or bottom. It does seem to have a SCSI, Parallel, serial, and video card.

bettablue
April 5th, 2012, 09:50 PM
Here were the CRT-based Compaq Portables:

Portable (original)
http://oldcomputers.net/pics/compaqI.JPG

Portable (later revision with half-height drives)
http://www.drviragopete.com/resources/compaq_portable.jpg

Portable Plus: same thing but with 1 floppy + 1 hard drive instead of dual floppies
Portable 286: same thing but with 286 instead of 8088

Portable II
http://oldcomputers.net/pics/compaqii-2.jpg

Starting with the Portable III, Compaq switched to a "lunchbox" design with a flat panel display (first neon orange gas plasma, then later monochrome LCD) and the drives on the side.

Thanks for the pics. Yeah, either of the 1st two revisions would be fantastic for me. And yeah, I do too want an altair, but that's more wishfel thinking on my part. The Compaq portable is much more in my price range. As far as the rest of the conversation up to this point, mits is hands, and mot mittens, or kittens. When I can afford it, I'll get one. I'll have one by the end of this year, no doubt. That's my goal. Then maybe I'll start looking for the Altair.

Thanks everyone for the laugh. We can be a funny bunch in here.

mcsew2k
April 20th, 2012, 10:05 PM
But an aftermarket XT/Baby AT-type motherboard wouldn't fit into a 5-slot 5150 case, at least not without some serious cutting and trimming of the case's metal to accomodate the differences in keyboard port and ISA slot placement.

There may have been a rare handful of aftermarket motherboards specifically designed to fit in a 5-slot IBM 5150 case (I have not seen proof; I'm just guessing about the possibility) -- in which case the collector's value of the board would easily equal or exceed that of the original IBM motherboard it replaced.


I can confirm the existence of a clone 5-slot PC. It was an 8 MHz 8088 made by AlphaNumeric, Inc. in Santa Fe Springs, CA. When I tried to upgrade mine to an 8-slot 386 the new motherboard would not fit the case for that reason. I still have the owner's manual to remind me.

vwestlife
April 22nd, 2012, 02:27 PM
I now have my Revision A 5150 PC listed on eBay. It is in mint condition and works perfectly, but after five years of sitting on the shelf, I thought someone else might get more use out of it than me. Bidding starts at 99 cents:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=170829415626

http://img.photobucket.com/albums/v93/zzm113/eBay/DSC01077.jpg

SpidersWeb
April 22nd, 2012, 05:07 PM
Can you add shipping for New Zealand on ebay? Preferably the cheapest - I don't mind waiting 3 months for someone to paddle it over here.
I need a 5150 system board + original keyboard to finish mine, but I think this delivered might work out at the same price and it looks so much nicer!

If I did buy it, I have suitable spare parts to keep it maintained and a matching IBM 5151 to pair it with.

Jimmy
April 22nd, 2012, 06:08 PM
Wow, very nice system, if I had not just purchased a Rev A. I would certainly be bidding on this one.

vwestlife
April 22nd, 2012, 07:33 PM
Can you add shipping for New Zealand on ebay? Preferably the cheapest - I don't mind waiting 3 months for someone to paddle it over here.

Unfortunately the post office no longer offers overseas surface shipping (by boat), so airmail is the only option. A rough estimate for shipping to New Zealand is US$146.59 for Priority Mail International.

SpidersWeb
April 22nd, 2012, 07:53 PM
Cheers for checking that out, much appreciated.
Will watch the bids :) When I was buying parts - keyboard for me would be $100USD delivered, and my last board cost me around $130USD and turned up non-functioning.

framer
April 24th, 2012, 05:25 AM
You have a late model A system with 360K drives IMHO. This one is not from the original 1st released batch. The serial number is high. There are also several different black power suppies. Yours is a later model....


framer

Jimmy
April 24th, 2012, 06:56 AM
Framer:

What is the serial number range for the first released batch, I also think that the top bolts on the black power supplies were not recessed on the early release, any infor that you could provide would be greatly appreciated.

Did most of the originals go to IBMers or were most released to the general public?

Thanks,

Jimmy

framer
April 24th, 2012, 10:26 AM
This is the thread that documents the early Model 5150

http://www.vintage-computer.com/vcforum/showthread.php?24223-I-bought-a-model-A-5150-cheap-on-FleaBay&highlight=

Guess on serial number range 106,000 - 126,000 This is a guess.

framer

Cimonvg
October 29th, 2012, 03:51 PM
"new" one on the bay.. Very interresting at what price it ends at! ..black PSU and os on :o
(not buying selling my self)
/cimonvg

Cimonvg
October 29th, 2012, 05:49 PM
..auction ended at 169$..

"new" one on the bay.. Very interresting at what price it ends at! ..black PSU and os on :o
(not buying selling my self)
/cimonvg

Cimonvg
November 11th, 2012, 05:27 PM
hello
I did buy , and awaits, a Rev.A computer with chassis (no PSU) , and on pictures it looks great. Price tag : 80$, not that cheap , not that expensive...

Question what version of BIOS do I need , if I like other EPROMs to function ?
- and can I use BIOS from a 5150 Rev B. to get this EPROM recognition ?? :confused:

..just took a short glance , and saw a expansion unit (no cable, no tx-card) but start price 29$ and no bid as of jet !
(I have a Tecmar expansion .. so I will not buy a 5161)
/cimonvg

modem7
November 11th, 2012, 10:07 PM
Question what version of BIOS do I need , if I like other EPROMs to function ?
- and can I use BIOS from a 5150 Rev B. to get this EPROM recognition ?? :confused:
If by "EPROMs", you mean the BIOS expansion ROM chip in cards such as the EGA card, then you need the third revision of the IBM BIOS.
The 7-digit number printed on the BIOS chip, U33, will inform you as to which BIOS revision you have:

First = Dated 04/24/81. Chip U33 has "5700051" printed on it.
Second = Dated 10/19/81. Chip U33 has "5700671" printed on it.
Third = Dated 10/27/82. Chip U33 has "1501476" printed on it.

http://www.minuszerodegrees.net/5150/misc/5150_u33.jpg

The 'early' 5150 is partially documented at http://www.minuszerodegrees.net/5150/early/5150_early.htm

Cimonvg
November 12th, 2012, 03:56 AM
If by "EPROMs", you mean the BIOS expansion ROM chip in cards such as the EGA card, then you need the third revision of the IBM BIOS.
The 7-digit number printed on the BIOS chip, U33, will inform you as to which BIOS revision you have:

First = Dated 04/24/81. Chip U33 has "5700051" printed on it.
Second = Dated 10/19/81. Chip U33 has "5700671" printed on it.
Third = Dated 10/27/82. Chip U33 has "1501476" printed on it.

http://www.minuszerodegrees.net/5150/misc/5150_u33.jpg

The 'early' 5150 is partially documented at http://www.minuszerodegrees.net/5150/early/5150_early.htm

Thank you - I will cross my fingers and hope a Rev.A computer arrives with a 1982 version BIOS :)
/cimonvg

Cimonvg
November 12th, 2012, 09:28 AM
..just took a short glance , and saw a expansion unit (no cable, no tx-card) but start price 29$ and no bid as of jet !
(I have a Tecmar expansion .. so I will not buy a 5161)
/cimonvg
..item 251179939665 .. if anybody is looking. /cimonvg

Cimonvg
November 20th, 2012, 02:44 PM
If by "EPROMs", you mean the BIOS expansion ROM chip in cards such as the EGA card, then you need the third revision of the IBM BIOS.
The 7-digit number printed on the BIOS chip, U33, will inform you as to which BIOS revision you have:

First = Dated 04/24/81. Chip U33 has "5700051" printed on it.
Second = Dated 10/19/81. Chip U33 has "5700671" printed on it.
Third = Dated 10/27/82. Chip U33 has "1501476" printed on it.

http://www.minuszerodegrees.net/5150/misc/5150_u33.jpg

The 'early' 5150 is partially documented at http://www.minuszerodegrees.net/5150/early/5150_early.htm

Hello again
and thank you ones more.
I did get a second edition BIOS. But I took a U33 from a 5150-rev.B. (look at picture) , and it worked :)
I was able to boot from a 360K floppy and run some DOS applications from the SCSI disk. On picture you can see the rather old CPU, and the green arrow points towards the spare punched mountinghole for a 25d connector . Serial number something with 014xxxx , so it is a rather old chassis. (picture taken after the third version BIOS were mounted)
/cimonvg
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