RAM check Error. NANO 8088 (Micro 8088) \ VOGONS

RAM check Error. NANO 8088 (Micro 8088)

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First post, by shimart

Posted on 2022-08-20, 14:24

shimart Offline

Rank Newbie

Rank: Newbie
Posts: 56
Joined: 2020-04-30, 14:39
Location: Seoul, Korea

I made it. nano8088

https://github.com/monotech/Nano8088
(Based From https://github.com/skiselev/micro_8088)

20220820_152051.jpg

I don't have electronic knowledge, but I'm happily building a retro machine while recalling my childhood memories.
Thank you very much for sharing and dedicating your open source PC hardware project.

I successfully completed NANO 8088 about half of the time, but the error message below makes me sad.

20220820_150744.jpg

20220820_151730.jpg

I made it as below, is there any problem?

Replace with PN2222 => 2N2222
Replace with Faraday FE2010A => Proton PT8010AF
Install 6.5-30 pF trimmer capacitor as unclear product

Or, Is one of the AS6C4008 (SRAM) broken?
Please give me some advice.
Thx!

Reply 1 of 5, by shimart

Posted on 2022-08-20, 14:27

shimart Offline

Rank Newbie

Rank: Newbie
Posts: 56
Joined: 2020-04-30, 14:39
Location: Seoul, Korea

Curiously, if I pass the RAM check with ESC Key, the games run well. (Monkey Island, Indy3, Zeiliard...etc etc)

Reply 2 of 5, by shimart

Posted on 2022-08-20, 14:36

shimart Offline

Rank Newbie

Rank: Newbie
Posts: 56
Joined: 2020-04-30, 14:39
Location: Seoul, Korea

and, MAXDOS run. (UMB)

20220820_150757.jpg

20220820_151923.png

RAM Check error message is output.
But UMB seems to be doing well.

20220820_233014 복사.jpg

Reply 3 of 5, by C0op3r

Posted on 2024-04-20, 07:09

C0op3r Offline

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Rank: Newbie
Posts: 3
Joined: 2024-04-20, 05:40
Location: Orlando FL

Are you the one that has these for sale on NAVER? I have been trying to buy one.

Reply 4 of 5, by shimart

Posted on 2024-04-22, 07:27

shimart Offline

Rank Newbie

Rank: Newbie
Posts: 56
Joined: 2020-04-30, 14:39
Location: Seoul, Korea

C0op3r wrote on 2024-04-20, 07:09:

Are you the one that has these for sale on NAVER? I have been trying to buy one.

🤣...
I'm the seller of the item

Reply 5 of 5, by C0op3r

Posted on 2024-04-22, 20:48

C0op3r Offline

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Rank: Newbie
Posts: 3
Joined: 2024-04-20, 05:40
Location: Orlando FL

Well I have been trying to buy a set for 2 weeks - had a friend in Korea msg you and everything but no luck.

So I ended up ordering all the parts to build my own - really wish I could of picked up a set from you.

Cooper

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