Ok I just tested the PC.
It actually turns on and stays on, but I get no video
Here, I just made this video: https://youtu.be/S6SOhZIA0BA
And here are some photos of the board with macros on almost every chip I could see:
This is the whole board, "what you see" when you open the PC:
![5259a5d58e414665a17275430d4ffc09.png](http://image.prntscr.com/image/5259a5d58e414665a17275430d4ffc09.png)
That's the right side of the motherboard, right below the SIMMs; the "Intel" chip I guess is the 386 CPU... soldered in the board instead of being "removable" like my 486.
![b289aaa94e5040878ecfec24850a5b1d.png](http://image.prntscr.com/image/b289aaa94e5040878ecfec24850a5b1d.png)
There's a close-up of the CPU, as you can read it's a 80386SX-16... it'd be a shame to waste...
![dbf0cf6b56a740139cf4369473f7c398.png](http://image.prntscr.com/image/dbf0cf6b56a740139cf4369473f7c398.png)
I have no idea what goes in this socket, it has always been empty, maybe it's a slot for a second CPU or something, I dunno.
![0932140a4893496a94bce8486cab2c44.png](http://image.prntscr.com/image/0932140a4893496a94bce8486cab2c44.png)
That's the "mod" my father tried to solve the issue, he soldered an AA battery with two wires and plugged it in a CN1 pin-thing... but it didn't solve anything at all.
![1d4cb7fd9dc947878b9daf4db9b225bf.png](http://image.prntscr.com/image/1d4cb7fd9dc947878b9daf4db9b225bf.png)
This is an "ADV476KN66E" chip (I have no idea what it is, actually... I just typed what's written on it 🤣)
![326db7422cf2437985015eddffabd9fb.png](http://image.prntscr.com/image/326db7422cf2437985015eddffabd9fb.png)
I have no idea what this WDC big chip is, might be the "graphics card".
![4d981b45a44c4b3fbf209053e4e09b16.png](http://image.prntscr.com/image/4d981b45a44c4b3fbf209053e4e09b16.png)
Then there's also this big "EPSON" chip here...
![9bfda628676448ef86da6a1199b41cbf.png](http://image.prntscr.com/image/9bfda628676448ef86da6a1199b41cbf.png)
3 SIMMs, that's the maximum this board is capable of... and a perfect healthy cap right in front of them (it's annoying, I always have to bent it to remove and insert the first SIMM, that's stupid)
![53a400d560634ec598a75611ebd162b6.png](http://image.prntscr.com/image/53a400d560634ec598a75611ebd162b6.png)
I have no idea what this is. That marker "4" isn't mine... I don't even write the "4" that way...
![f8797428cdd24cd08b671fd6cdddc4f3.png](http://image.prntscr.com/image/f8797428cdd24cd08b671fd6cdddc4f3.png)
The two parts of the board are kept together with these two white things:
![d43169f372b841cabb03308c430a96d5.png](http://image.prntscr.com/image/d43169f372b841cabb03308c430a96d5.png)
Here's the AT PSU's sticker with all of its details:
![2ebb7760a4634ed0bfef5ed3e6e9679b.png](http://image.prntscr.com/image/2ebb7760a4634ed0bfef5ed3e6e9679b.png)
Here's the back panel, very simple: AC plug, VGA, Keyboard, Mouse, Serial and Parallel
![a46bb713684d4c7a90aecf6f7645b745.png](http://image.prntscr.com/image/a46bb713684d4c7a90aecf6f7645b745.png)
AND YES, IT ACTUALLY HAS A 15-PIN VGA AND NOT 14-PIN LIKE THE 486 !!! Even though it's older... WTF !!!
This is the front panel, in case someone recognizes this PC:
![ad854dbad763429fbff8eb5e3f6cd13f.png](http://image.prntscr.com/image/ad854dbad763429fbff8eb5e3f6cd13f.png)
I didn't see the "Dallas RTC" chip anywhere...
Currently assembled vintage computers I own: 11
Most important ones:
A "modded" Olivetti M4 434 S (currently broken).
An Epson El Plus 386DX running MS-DOS 6.22 (currently broken).
Celeron Coppermine 1.10GHz on an M754LMRTP motherboard