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paulrickards
@paulrickards@mastodon.social  ·  activity timestamp 3 weeks ago

Getting things sorted for the VCF swap meet this Saturday in NJ. Pulled this IBM chonk from the basement. 20.5 kg of IBM iron. Good thing there’s a handle on top 😄

#RetroComputing #IBM

Composite of three images showing the front and back of a large beige IBM tower computer and a hand grasping the handle on the top.
Composite of three images showing the front and back of a large beige IBM tower computer and a hand grasping the handle on the top.
Composite of three images showing the front and back of a large beige IBM tower computer and a hand grasping the handle on the top.
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paulrickards
@paulrickards@mastodon.social replied  ·  activity timestamp 3 weeks ago

Curiously, this IBM PS/2 8580 is a 386 machine but it has a badge on the front that says 486?🤔

#RetroComputing #IBM #IBM8580

Composite of two IBM badges, top reads “PS/2 8580” and bottom reads “PS/2 Model 80 486”
Composite of two IBM badges, top reads “PS/2 8580” and bottom reads “PS/2 Model 80 486”
Composite of two IBM badges, top reads “PS/2 8580” and bottom reads “PS/2 Model 80 486”
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paulrickards
@paulrickards@mastodon.social replied  ·  activity timestamp 3 weeks ago

I’ve never powered it on so let’s open it up and see inside.

Clean and tidy! Pretty sure that’s a SCSI card on the far left going to two HDs and a CD-ROM. Next to it looks to be a RAM card with 12MB in 3 SIMMs. Next to it an IO card of some kind. Also two “IBM FRU” cards (more RAM?). This thing feels tricked out for the time!

#RetroComputing #IBM #IBM8580

A hand holding a green circuit board with 3x6 rows of chips on it.
A hand holding a green circuit board with 3x6 rows of chips on it.
A hand holding a green circuit board with 3x6 rows of chips on it.
The inside of the IBM 8580 PC showing some cards plugged into a motherboard below and cables neatly running between components.
The inside of the IBM 8580 PC showing some cards plugged into a motherboard below and cables neatly running between components.
The inside of the IBM 8580 PC showing some cards plugged into a motherboard below and cables neatly running between components.
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paulrickards
@paulrickards@mastodon.social replied  ·  activity timestamp 3 weeks ago

Ok what’s this. A card underneath the drive bay on the motherboard. I’m not sure how to get to it yet so enjoy these keyhole pictures.

Lots of GALs? Hypertec? An accelerator? Maybe that’s the 486?

#RetroComputing #IBM #IBM8580

A green circuit board with lots of Latice GALs on it.
A green circuit board with lots of Latice GALs on it.
A green circuit board with lots of Latice GALs on it.
A green circuit board with silk screen in white that reads “DESIGNED FOR IBM BY HYPERTEC”
A green circuit board with silk screen in white that reads “DESIGNED FOR IBM BY HYPERTEC”
A green circuit board with silk screen in white that reads “DESIGNED FOR IBM BY HYPERTEC”
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paulrickards
@paulrickards@mastodon.social replied  ·  activity timestamp 3 weeks ago

Found the part number FRU 92F0437 on the board which is a IBM PS/2 486DX33 Processor Upgrade Card. Pretty cool!

https://eprm.ardent-tool.com/eprm0/2107.htm

#RetroComputing #IBM8580 #IBM

IBM 486DX33 Processor Upgrade Card

A portion of a green circuit board with silk screen in white that reads “FRU 92F0437”
A portion of a green circuit board with silk screen in white that reads “FRU 92F0437”
A portion of a green circuit board with silk screen in white that reads “FRU 92F0437”
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