Expert (WD Paradise) 2300H Vga card upgrade

Discussion about old graphics cards, monitors and video related things.

Expert (WD Paradise) 2300H Vga card upgrade

Postby TimWolf » 2018-7-19 @ 19:10

I'd like to upgrade this card for my Hyundai Super 286E. What is my best option? How far can I go? Just 8x 64k to bring it to 1mb? Or can I use others to go further, or bigger and use less of them? Like 2x 256k?

Thanks in advance. It's been a few decades since I played with this stuff.
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Re: Expert (WD Paradise) 2300H Vga card upgrade

Postby Jo22 » 2018-7-20 @ 20:00

Hi, the WD90C00 chip is comparable to the PVGA1A or PVGA1B chip, I think.
At least software wise it's very close. From what I've seen, the old PVG1A drivers do work fine on the WD90C00, too.
Same goes for the 800x600 SVGA video mode. I'm speaking under correction, but 512KiB should be possible with that card.
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Re: Expert (WD Paradise) 2300H Vga card upgrade

Postby The Serpent Rider » 2018-7-21 @ 03:21

It's not fast even in VGA though and more memory won't fix that.
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Re: Expert (WD Paradise) 2300H Vga card upgrade

Postby TimWolf » 2018-7-21 @ 05:44

Jo22 wrote:Hi, the WD90C00 chip is comparable to the PVGA1A or PVGA1B chip, I think.
At least software wise it's very close. From what I've seen, the old PVG1A drivers do work fine on the WD90C00, too.
Same goes for the 800x600 SVGA video mode. I'm speaking under correction, but 512KiB should be possible with that card.



So what are my ram chip options? What do I order to upgrade. I don't care if it's fast. It's in a 286-12mhz, I just want nice 256c 800 x 600. That and I like upgrades.
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Re: Expert (WD Paradise) 2300H Vga card upgrade

Postby The Serpent Rider » 2018-7-21 @ 06:19

I think it would much easier to find more modern card.
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Re: Expert (WD Paradise) 2300H Vga card upgrade

Postby root42 » 2018-7-21 @ 08:02

TimWolf wrote:
Jo22 wrote:Hi, the WD90C00 chip is comparable to the PVGA1A or PVGA1B chip, I think.
At least software wise it's very close. From what I've seen, the old PVG1A drivers do work fine on the WD90C00, too.
Same goes for the 800x600 SVGA video mode. I'm speaking under correction, but 512KiB should be possible with that card.



So what are my ram chip options? What do I order to upgrade. I don't care if it's fast. It's in a 286-12mhz, I just want nice 256c 800 x 600. That and I like upgrades.


Well, you can see on your photo that the populated ICs are DIP18 package 53C464 DRAMs at 80ns'. So you can look online for those. Maybe you find them in ebay or some specialty shop that sells obsolete ICs. There will be compatible ICs out there. See the datasheet here: https://datasheetspdf.com/pdf-down/H/Y/ ... yundai.pdf

It seems like the 41464 is compatible: https://downloads.reactivemicro.com/Ele ... 0Sheet.pdf
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Re: Expert (WD Paradise) 2300H Vga card upgrade

Postby TimWolf » 2018-7-22 @ 14:32

@The Serpent Rider I'm looking to upgrade my original hardware, not get a new card. No matter how good or bad it is.

Thank you Root42, very helpful. Found 10 for $4.32 out of China. Wish they made them in the USA, but the only people selling them in the USA are just buying them from China and marking them up. Now to wait 10 -25 days...
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Re: Expert (WD Paradise) 2300H Vga card upgrade

Postby TimWolf » 2018-7-25 @ 17:58

Another stupid question. What is the edge connector at the top of this and other old graphics cards for?

Thanks
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Re: Expert (WD Paradise) 2300H Vga card upgrade

Postby root42 » 2018-7-25 @ 18:54

TimWolf wrote:Another stupid question. What is the edge connector at the top of this and other old graphics cards for?

Thanks


It's a feature connector. Allows other cards to directly access the VGA memory, bypassing the CPU. It was used for example for MPEG video playback cards and similar things.
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Re: Expert (WD Paradise) 2300H Vga card upgrade

Postby TimWolf » 2018-7-25 @ 20:16

root42 wrote:
TimWolf wrote:Another stupid question. What is the edge connector at the top of this and other old graphics cards for?

Thanks


It's a feature connector. Allows other cards to directly access the VGA memory, bypassing the CPU. It was used for example for MPEG video playback cards and similar things.


Is there anything useful I could use that for in a 286?
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Re: Expert (WD Paradise) 2300H Vga card upgrade

Postby root42 » 2018-7-26 @ 11:57

TimWolf wrote:
root42 wrote:
TimWolf wrote:Another stupid question. What is the edge connector at the top of this and other old graphics cards for?

Thanks


It's a feature connector. Allows other cards to directly access the VGA memory, bypassing the CPU. It was used for example for MPEG video playback cards and similar things.


Is there anything useful I could use that for in a 286?


Hm, well it would be a VERY niche application, but there were TV or video capture cards compatible with (high specced) 286 PCs:

http://www.aitech.com/support/descwworig.htm

Good luck tracking one down and getting your 286 up to 4 MiB RAM.
Soldering, retro game reviews and more on YouTube and Bonus videos
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Re: Expert (WD Paradise) 2300H Vga card upgrade

Postby serguey bubka » 2018-7-30 @ 12:08

TimWolf wrote:I'd like to upgrade this card for my Hyundai Super 286E. What is my best option? How far can I go? Just 8x 64k to bring it to 1mb? Or can I use others to go further, or bigger and use less of them? Like 2x 256k?

Thanks in advance. It's been a few decades since I played with this stuff.


Hi @TimWolf. I've already tried to contact you in another thread. I had a brand new 286E between '91 and '98. I would like to discuss some info about it, can you send me your email?
Thankx.
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