For Sale HEDAKA HED-988 & Harris 286 20MHz & 4MB RAM & Opti 929A OPL sound & 40MB HDD & OTi067 512KB VGA & IDE/COM/Floppy controller

  • Thread starter Thread starter GeorgeMan
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GeorgeMan

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I'm selling the following set:

* HEDAKA HED-988 286 motherboard (EMS/XMS split memory setting)
* HARRIS 20MHz 286 CPU
* 4x1MB SIPP RAM 70ns
* OAK OTI067 512KB ISA VGA (it can work on 8bit slots too, tested on an XT, no jumper needed)
* UMC IDE/floppy/COM controller ("HEDAKA" sticker)

All of these were bought as set new by my father in 1992 and they were kept in their box brand new. I opened the boxes myself a couple of years ago and used them a bit. They all have yellow PCB color. They have only been used a handful of hours. Battery was removed and almost no damage was done, everything works fine. Together you'll also receive an LPT/COM controller card.
Tested in DOS, more photos here. Board info here. Due to age sold as is.


Edit: ADDING
+ Opti 929A ISA card with real OPL and IDE/Panasonic/Mitsumi/Sony interfaces
+ 40MB IDE HDD made in UK, fully working, 0 bad sectors

More photos of the added items and testing here.

Asking 180€ (was 200€) for the whole set.
 

Attachments

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Declaring interest.
I have one of these, but it doesn't POST. Do you know if it supports >4MB RAM, perchance?

Also, you won't consider selling without the additional cards, I presume? (Not sure if it's OK to ask; ignore this if it isn't)

(Interest marked as expired by GeorgeMan)
 
Last edited by a moderator:
Hi, it's sold only as set. I don't have any higher density RAM to try, just these 4x1MB SIPPs.
 
Last edited:
ADDING
+ Opti 929A ISA card with real OPL and IDE/Panasonic/Mitsumi/Sony interfaces
+ 40MB IDE HDD made in UK, fully working, 0 bad sectors

More photos of the added items and testing here.
 

Attachments

  • hdd sound back.webp
    hdd sound back.webp
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  • hdd scan.webp
    hdd scan.webp
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  • hdd sound.webp
    hdd sound.webp
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  • opl.webp
    opl.webp
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  • sound shield.webp
    sound shield.webp
    139.3 KB · Views: 5
  • sound.webp
    sound.webp
    410.7 KB · Views: 8
Last edited:

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