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  • Malc's Avatar
    July 20th, 2018, 11:58 AM
    Malc replied to a thread IBM 5155 Dead PSU in PCs and Clones
    Yes C58 on the motherboard and C8 on the CGA card are both 16V 10uf, You can also use 25V 10uf, Depending on your motherboard, Whether it's been...
    6 replies | 120 view(s)
  • Malc's Avatar
    July 20th, 2018, 01:51 AM
    IIRC the 5162's were originally shipped with 1 1.2Mb YE Data floppy drive, Model 380 i think, My 5162 had one until it died half way through writing...
    40 replies | 809 view(s)
  • Malc's Avatar
    July 20th, 2018, 12:46 AM
    Malc replied to a thread IBM 5155 Dead PSU in PCs and Clones
    A 5150 PSU will not be suitable for the 5155, The 5150 PSU is only 63W, The tants C58 and C8 on the cga are 16V 10uf, And can be got from ebah or...
    6 replies | 120 view(s)
  • Malc's Avatar
    July 19th, 2018, 11:59 PM
    I'm only guessing that IBM had an excess of early boards, The boards i have that have been upgraded to 640k and have the sticker all look like they...
    10 replies | 339 view(s)
  • Malc's Avatar
    July 19th, 2018, 07:34 AM
    Malc replied to a thread Lo-Tech ISA-USB in PCs and Clones
    Thinking about it i remember finding 2 seemingly slightly different builds of the CH375DOS.sys v1.9x driver, Both had the same version # and build...
    10 replies | 371 view(s)
  • Malc's Avatar
    July 19th, 2018, 05:06 AM
    Malc replied to a thread Lo-Tech ISA-USB in PCs and Clones
    Yes i got the Bios to work also after a lot of faffing about but it has issues, Using the DOS driver i had no problems in using 1Gb and 2Gb...
    10 replies | 371 view(s)
  • Malc's Avatar
    July 19th, 2018, 01:25 AM
    Malc replied to a thread Lo-Tech ISA-USB in PCs and Clones
    I'd forget about the boot rom bios, It has issues, Use the CH375DOS.sys driver in the "No Interr" folder on an XT machine, It's V1.9A IIRC, In your...
    10 replies | 371 view(s)
  • Malc's Avatar
    July 18th, 2018, 10:52 AM
    301 is a keyboard error, is your keyboard XT compatible ?
    1 replies | 72 view(s)
  • Malc's Avatar
    July 18th, 2018, 10:08 AM
    Malc replied to a thread IBM 5155 dead in PCs and Clones
    She lives again, I've upgraded the ram on the mobo to 640k, Instead of having 2 360k floppy drives i replaced one with a 3.5" floppy drive, Still got...
    16 replies | 426 view(s)
  • Malc's Avatar
    July 15th, 2018, 10:07 AM
    Malc replied to a thread IBM 5155 dead in PCs and Clones
    I downloaded Hugo's PDF on the 5155 PSU, A very interesting read Thanks. I have removed the PSU and had a good look inside, Spotlessly clean and...
    16 replies | 426 view(s)
  • Malc's Avatar
    July 15th, 2018, 12:17 AM
    Trixter had a similar problem with his 5162 and VGA but he was using the IBM diagnostics disk, http://www.vcfed.org/forum/showthread.php?59246...
    40 replies | 809 view(s)
  • Malc's Avatar
    July 14th, 2018, 09:55 AM
    Malc replied to a thread IBM 5170 and CF Card in PCs and Clones
    What CF adapter and controller are you using ?, Some of the cheap crappy chinese CF adapters don't work well with some 16-bit IDE/floppy controllers,...
    7 replies | 222 view(s)
  • Malc's Avatar
    July 13th, 2018, 09:53 AM
    Malc replied to a thread IBM 5155 dead in PCs and Clones
    Thanks, i have not looked at the PSU yet but it's looking more like a PSU problem, I have replaced the tant on the motherboard and had the board...
    16 replies | 426 view(s)
  • Malc's Avatar
    July 13th, 2018, 02:40 AM
    Malc replied to a thread IBM 5155 dead in PCs and Clones
    Thanks but i found a pdf on the net, The lube job has been a success, Both drives are now working, Tested in my 5160 and given a good work out, Also...
    16 replies | 426 view(s)
  • Malc's Avatar
    July 12th, 2018, 11:49 PM
    I can understand people wanting period correct original hardware in these old computers, But for me it's just a hobby and cost is my first priority,...
    25 replies | 524 view(s)
  • Malc's Avatar
    July 12th, 2018, 01:25 PM
    Malc replied to a thread IBM 5155 dead in PCs and Clones
    I found out why the Floppy drives are not working, The motors in both drives seem to be working but the pulley hubs are not turning the floppy disk,...
    16 replies | 426 view(s)
  • Malc's Avatar
    July 12th, 2018, 09:44 AM
    Malc replied to a thread IBM 5155 dead in PCs and Clones
    Yup that's what i'm thinking, I'll see how it goes once i've pulled it apart, I can test the floppy drives etc in my 5160 and if it comes to it i...
    16 replies | 426 view(s)
  • Malc's Avatar
    July 12th, 2018, 08:54 AM
    Malc replied to a thread IBM 5155 dead in PCs and Clones
    Yeah been there many times, Found 1 shorted Tant on the +12v line, all i've done is snipped it off at the mo, It now powers up and shuts down after a...
    16 replies | 426 view(s)
  • Malc's Avatar
    July 12th, 2018, 08:40 AM
    Malc replied to a thread IBM 5155 dead in PCs and Clones
    Dead is dead, Flick the power switch and nothing, Totally Deceased.
    16 replies | 426 view(s)
  • Malc's Avatar
    July 12th, 2018, 04:19 AM
    Interesting, I just picked up a 5155 (dead), I'm hoping to use an XTIDE in mine if i can.
    25 replies | 524 view(s)
  • Malc's Avatar
    July 12th, 2018, 04:08 AM
    Malc started a thread IBM 5155 dead in PCs and Clones
    I picked up an old IBM 5155 to add to my collection, It's a bit dirty but complete and should clean up quite nicely, With a manufacture date of 1st...
    16 replies | 426 view(s)
  • Malc's Avatar
    July 9th, 2018, 10:07 PM
    Yes it sounds like you have a bad 573 in U1 or U2 but just double check your solder joints are good first, Unfortunately it happens to the best of...
    95 replies | 10055 view(s)
  • Malc's Avatar
    July 8th, 2018, 10:30 AM
    Malc replied to a thread Truth on ZIP drives in General Off Topic
    Could have been nasty, I've had a few that got so hot the labels start bubbling up, I was looking for a psu for for an old programmer recently, I...
    24 replies | 449 view(s)
  • Malc's Avatar
    July 8th, 2018, 08:10 AM
    Nice to have but looking closely at the pics it has some wear and tear and i think i can see rust in places, Hard to tell what it'll go for but you...
    13 replies | 348 view(s)
  • Malc's Avatar
    July 6th, 2018, 11:38 PM
    I must admit many times i've seen "High" charges on sellers listings that use the GSP, Not sure whats going on there, Whether it's Ebah or the seller...
    34 replies | 773 view(s)
  • Malc's Avatar
    July 6th, 2018, 12:10 AM
    I have a couple of old controllers with no identification on them, Made in Taiwan i think, A couple of Diamond Flower cards with own socketed bios...
    12 replies | 378 view(s)
  • Malc's Avatar
    July 2nd, 2018, 12:09 PM
    Malc replied to a thread IBM 5160 MB issue in PCs and Clones
    if you can burn your own eproms, Perhaps try the Supersoft diagnosic rom downloadable from Modem7's website.
    9 replies | 205 view(s)
  • Malc's Avatar
    July 2nd, 2018, 09:17 AM
    Yup in some cases it can work out cheaper for the buyer to go via the GSP, it may take a little longer to get to it's destination but worth it.
    34 replies | 773 view(s)
  • Malc's Avatar
    July 2nd, 2018, 06:29 AM
    Out of interest Why does it stink ?, I've only been on the receiving end once when i bought from a seller in the USA and it worked out realy well for...
    34 replies | 773 view(s)
  • Malc's Avatar
    July 1st, 2018, 12:48 AM
    I have used old 16-bit IDE/Floppy controllers in my 5160 running the XUB with CF and adapter connected to the IDE header with no problems, Note: Some...
    12 replies | 378 view(s)
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