found the motherboard of a Sanyo MBC-550/555
it is not in theretroweb. Ill send it to them after I dump the bios
someone badly removed the keyboard connector. also misisng is the composite video output and one DRM chip. but Ill try to rebuild it. need to understand the floppy drive interface,

I´ll love if someone send me detailed pics form both sides of the board around the missing connector

plus, found several more EPROMS, including one more of on type Ive been looking to fully populate a EPROM/FLASH/SRAM board

UPDATE: well, I found part of the motherboard schematics in Archive.org

This EISA/VLB motherboard which I got for an absolute steal on the 'big auction site'. Came without cache, keyboard controller or BIOS. Did the following work:

- cleaned board fully,
- battery mod for the special RAMified Dallas after desoldering and socketing,
- installed spare keyboard controller,
- removed 28-pin socket and installed 32-pin socket as the motherboard had footprint and connections for 32-pin flash chips,
- hot-flashed BIOS using a Pentium motherboard after downloading .bin from theretroweb,
- ordered 16K x 4 chip because the board uses an old style cache configuration with tag and dirty bit,
- installed 256KB cache,
- ordered spare crystals as there is no clock IC.

Board is now working fully.

PcBytes wrote on 2025-03-09, 12:41:

Scores today: […]
Show full quote

Scores today:

-Kobian KOB 815EP FSX + P3 866
-MSI MS-6378 v3 w/ Duron 1000 - Trident Blade 3D, interesting.
-Fujitsu MAX3147NC 146GB Ultra320 SCSI HDD - Dell OEM it seems 😀

If by interesting you mean absolutely awful then yes its interesting.

I received this two days ago. It's a Trident 8900D-R 1MB, my first ISA VGA. It's unused (with nice box and Windows 3.1 driver floppy) and I bought it on Yahoo! Auctions for 4500 yen (about $30).
I'd been keeping an eye on auction sites for about two years, hoping to find an ISA VGA for under 2000 yen ($13), but it seemed impossible, so I gave up.
Well, I'm glad I got a good one in the end.

kagura1050 wrote on 2025-03-10, 00:27:

I received this two days ago. It's a Trident 8900D-R 1MB, my first ISA VGA. It's unused (with nice box and Windows 3.1 driver floppy) and I bought it on Yahoo! Auctions for 4500 yen (about $30).
I'd been keeping an eye on auction sites for about two years, hoping to find an ISA VGA for under 2000 yen ($13), but it seemed impossible, so I gave up.
Well, I'm glad I got a good one in the end.

So it was you who got it! I was keeping an eye on that auction. Good to see it went to a good home.

Trashbytes wrote on 2025-03-09, 23:36:

PcBytes wrote on 2025-03-09, 12:41:

Scores today: […]
Show full quote

Scores today:

-Kobian KOB 815EP FSX + P3 866
-MSI MS-6378 v3 w/ Duron 1000 - Trident Blade 3D, interesting.
-Fujitsu MAX3147NC 146GB Ultra320 SCSI HDD - Dell OEM it seems 😀

If by interesting you mean absolutely awful then yes its interesting.

Awful, maybe, I have yet to test it further. But given it shows up during the late Socket 7 era, is why I find it rather interesting. (MVP4, to be specific.)

PcBytes wrote on 2025-03-10, 10:17:

Trashbytes wrote on 2025-03-09, 23:36:

PcBytes wrote on 2025-03-09, 12:41:

Scores today: […]
Show full quote

Scores today:

-Kobian KOB 815EP FSX + P3 866
-MSI MS-6378 v3 w/ Duron 1000 - Trident Blade 3D, interesting.
-Fujitsu MAX3147NC 146GB Ultra320 SCSI HDD - Dell OEM it seems 😀

If by interesting you mean absolutely awful then yes its interesting.

Awful, maybe, I have yet to test it further. But given it shows up during the late Socket 7 era, is why I find it rather interesting. (MVP4, to be specific.)

Duron 1000 though, that's going to be pretty good 😀

Welp, last weekend at the flea market wasn't that great - there were lots of stuff to choose from and quite a few "semi" retro PC towers from the P4 / Athlon XP era. For some reason, though, I ended up getting the more crappy items than I would have liked... but it is what it is.

This is what approx. $18 worth of cash got me:
$4: Two newer Creative SB PCI cards (one's a Live 24-bit, and the other X-Fi / Xtreme Fidelity... forgot what SB models exactly, they are outside drying from the wash.)
$2.50: 2x Seagate Barracuda 7200.7 IDE HDDs, 40 GB - appear to power up and head seek OK. To be tested later today, most likely.
$1: a 10 GB WD IDE HDD with rather quiet bearings (still) and a 160 GB Hitachi Deskstar SATA HDD that is probably hosed. The WD head-seeks OK, the Hitachi is yet to be tested, as PCB has bad water damage and it sounds like the head is crashed / not on the parking ramp inside.
$2.50: Sapphire Radeon 9600 Pro Advantage! Ed. with 3.6 ns RAM. Not tested, but looks OK, minus missing the metal bracket. Cooler was caked with dry nicotine dust but not much stuck to the card. It's outside drying right now.
$1: MSI GeForce 2 MX 400 AGP 128-bit SDR with 6 ns RAM... because, why not? Looked pristine.
$3: Gigabyte GA-8iPE1000 Pro2 socket 478 board with 2.6 GHz P4 (not sure if NW or Prescott yet.) Seemed like a good deal, until I got home and saw two nasty gashes on the bottom of the board that somehow I didn't notice at the time of the sale. The traces appear to be going to the PS/2 ports, USB ports, and etc. (I think!) They are very fine, so this will be "fun" to repair.
$3: TurboX H81M PCID LGA1150 motherboard (H81 chipset). Had a single bad pin in the CPU socket and a burned trace near the ATX connector. I have seen and repaired this kind of damage before on an ASUS board, so decided to give it a try. Normally, I'm pretty careful about protecting the LGA socket... but this time, I don't know what happened, so I completely forgot. By the time I got home, I had 15 mashed pins to repair. Those are taken care of now, so I just need to deal with the burned trace next... and oh, a bumped cap at the bottom, which was also a present issue at the time of sale. Wish me luck with this one. Don't know why I got it when literally at the end of the day, there was another guy selling an H87 ASUS board with only 3 bent pins in the CPU socket.

I didn't stay until the end, so didn't pickup any CDs or DVDs for my "data hoards".
On the plus side, at least this time I didn't overload myself like a mule.

kagura1050 wrote on 2025-03-10, 00:27:

I received this two days ago. It's a Trident 8900D-R 1MB, my first ISA VGA. It's unused (with nice box and Windows 3.1 driver floppy) and I bought it on Yahoo! Auctions for 4500 yen (about $30).
I'd been keeping an eye on auction sites for about two years, hoping to find an ISA VGA for under 2000 yen ($13), but it seemed impossible, so I gave up.
Well, I'm glad I got a good one in the end.

I recently got a 8900D too. Not new, but nearly new in the original box without the disks and packaging. It's going into a 386DX40.

momaka wrote on 2025-03-10, 14:19:

Welp, last weekend at the flea market wasn't that great - there were lots of stuff to choose from and quite a few "semi" retro P […]
Show full quote

Welp, last weekend at the flea market wasn't that great - there were lots of stuff to choose from and quite a few "semi" retro PC towers from the P4 / Athlon XP era. For some reason, though, I ended up getting the more crappy items than I would have liked... but it is what it is.

This is what approx. $18 worth of cash got me:
$4: Two newer Creative SB PCI cards (one's a Live 24-bit, and the other X-Fi / Xtreme Fidelity... forgot what SB models exactly, they are outside drying from the wash.)
$2.50: 2x Seagate Barracuda 7200.7 IDE HDDs, 40 GB - appear to power up and head seek OK. To be tested later today, most likely.
$1: a 10 GB WD IDE HDD with rather quiet bearings (still) and a 160 GB Hitachi Deskstar SATA HDD that is probably hosed. The WD head-seeks OK, the Hitachi is yet to be tested, as PCB has bad water damage and it sounds like the head is crashed / not on the parking ramp inside.
$2.50: Sapphire Radeon 9600 Pro Advantage! Ed. with 3.6 ns RAM. Not tested, but looks OK, minus missing the metal bracket. Cooler was caked with dry nicotine dust but not much stuck to the card. It's outside drying right now.
$1: MSI GeForce 2 MX 400 AGP 128-bit SDR with 6 ns RAM... because, why not? Looked pristine.
$3: Gigabyte GA-8iPE1000 Pro2 socket 478 board with 2.6 GHz P4 (not sure if NW or Prescott yet.) Seemed like a good deal, until I got home and saw two nasty gashes on the bottom of the board that somehow I didn't notice at the time of the sale. The traces appear to be going to the PS/2 ports, USB ports, and etc. (I think!) They are very fine, so this will be "fun" to repair.
$3: TurboX H81M PCID LGA1150 motherboard (H81 chipset). Had a single bad pin in the CPU socket and a burned trace near the ATX connector. I have seen and repaired this kind of damage before on an ASUS board, so decided to give it a try. Normally, I'm pretty careful about protecting the LGA socket... but this time, I don't know what happened, so I completely forgot. By the time I got home, I had 15 mashed pins to repair. Those are taken care of now, so I just need to deal with the burned trace next... and oh, a bumped cap at the bottom, which was also a present issue at the time of sale. Wish me luck with this one. Don't know why I got it when literally at the end of the day, there was another guy selling an H87 ASUS board with only 3 bent pins in the CPU socket.

I didn't stay until the end, so didn't pickup any CDs or DVDs for my "data hoards".
On the plus side, at least this time I didn't overload myself like a mule.

That's slim in terms of weight. The pack of boards my recycler just sent my way weighs no less than 12kg alone. Zoinks.

On the upside... lots of rare stuff, including a Voodoo 3 PCI.

PcBytes wrote on 2025-03-10, 10:17:

Trashbytes wrote on 2025-03-09, 23:36:

PcBytes wrote on 2025-03-09, 12:41:

Scores today: […]
Show full quote

Scores today:

-Kobian KOB 815EP FSX + P3 866
-MSI MS-6378 v3 w/ Duron 1000 - Trident Blade 3D, interesting.
-Fujitsu MAX3147NC 146GB Ultra320 SCSI HDD - Dell OEM it seems 😀

If by interesting you mean absolutely awful then yes its interesting.

Awful, maybe, I have yet to test it further. But given it shows up during the late Socket 7 era, is why I find it rather interesting. (MVP4, to be specific.)

Oh no, no no no others have walked that path before you including myself and its truly an awful video card which is odd since Trident were well known for some decent mid range cards.

I've dealt with SiS 6326. I doubt the Trident being any worse than that.

Backed the kickstarter for these a couple years back and they just arrived today.

I got to play with one of these not so long ago, and unfortunately, I can say little positive about the experience 😒

Tiido wrote on 2025-03-10, 22:20:

I got to play with one of these not so long ago, and unfortunately, I can say little positive about the experience 😒

Why, what happened?

PcBytes wrote on 2025-03-10, 21:15:

I've dealt with SiS 6326. I doubt the Trident being any worse than that.

I don't know about the Blade3D specifically, but the 3DImage 9750 has such horrible image quality in 3D that even a S3 Virge is preferable. Unless there was some kind of tech miracle between that and the Blade I doubt it's much better.

Shponglefan wrote on 2025-03-10, 22:39:

Why, what happened?

* The OSD system is cluncky and lacks simple things like image positioning. Whatever is used seems to be from a low end TV and not something really fitting for a monitor.
* It couldn't display stuff like BIOS boot screens over VGA connection (at least on the computer we were playing with, a Samsung monitor had no issue whatsoever).
* The CVBS inputs were doing stuff like deinterlacing and had absolutely awful image quality. It was also frame-rate converting and did a horrendous job at it. If you absolutely need to see something you can use them but any gaming is better forgotten.
* HDMI input was able to accept the oddball output from my OSSC that was tuned to perfect capture of Mega Drive's analog RGB output, but it was doing very poor frame-rate conversion when 50Hz signal was input.
* Bezel covers few of the edgemost pixels of the panel, i.e Speedsys frame is invisible because of it.
* The panel has pretty slow response time, absolutely unfitting for scrolling games. Sonic on MD turned into a total blurry mess as soon as things started to move.
* Power on/off button is wired the wrong way around

The monitor lacked the board with SCART input so I cannot comment on if its inputs were better behaving. I would surely hope so because the rest has was a disappointment to put it mildly.

I did like the swivel and tilting capability and sound wasn't half bad among other monitors with little built in speakers.

Tiido wrote on 2025-03-10, 23:09:

* The OSD system is cluncky and lacks simple things like image positioning. Whatever is used seems to be from a low end TV and n […]
Show full quote

Shponglefan wrote on 2025-03-10, 22:39:

Why, what happened?

* The OSD system is cluncky and lacks simple things like image positioning. Whatever is used seems to be from a low end TV and not something really fitting for a monitor.
* It couldn't display stuff like BIOS boot screens over VGA connection (at least on the computer we were playing with, a Samsung monitor had no issue whatsoever).
* The CVBS inputs were doing stuff like deinterlacing and had absolutely awful image quality. It was also frame-rate converting and did a horrendous job at it. If you absolutely need to see something you can use them but any gaming is better forgotten.
* HDMI input was able to accept the oddball output from my OSSC that was tuned to perfect capture of Mega Drive's analog RGB output, but it was doing very poor frame-rate conversion when 50Hz signal was input.
* Bezel covers few of the edgemost pixels of the panel, i.e Speedsys frame is invisible because of it.
* The panel has pretty slow response time, absolutely unfitting for scrolling games. Sonic on MD turned into a total blurry mess as soon as things started to move.
* Power on/off button is wired the wrong way around

The monitor lacked the board with SCART input so I cannot comment on if its inputs were better behaving. I would surely hope so because the rest has was a disappointment to put it mildly.

I did like the swivel and tilting capability and sound wasn't half bad among other monitors with little built in speakers.

Thanks for commenting, I'll have to test what I can and see what results I get.

I've confirmed that this monitor unfortunately does do frameskipping under DOS resolutions. This is disappointing since the panel was advertised as supporting up to 75Hz. But I'm now wondering if it's one of those supports the input mode, but then frameskips down to 60Hz for the panel.

(Note this was taken at 1/15 shutter speed so the image is a bit blown out).

I also tested the Speedsys thing you mentioned and can confirm, the bezel is pretty much on top of the first row of pixels on mine. You can slightly see the border, but it's not a great look.

Tiido wrote on 2025-03-10, 23:09:

* The OSD system is cluncky and lacks simple things like image positioning. Whatever is used seems to be from a low end TV and n […]
Show full quote

Shponglefan wrote on 2025-03-10, 22:39:

Why, what happened?

* The OSD system is cluncky and lacks simple things like image positioning. Whatever is used seems to be from a low end TV and not something really fitting for a monitor.
* It couldn't display stuff like BIOS boot screens over VGA connection (at least on the computer we were playing with, a Samsung monitor had no issue whatsoever).
* The CVBS inputs were doing stuff like deinterlacing and had absolutely awful image quality. It was also frame-rate converting and did a horrendous job at it. If you absolutely need to see something you can use them but any gaming is better forgotten.
* HDMI input was able to accept the oddball output from my OSSC that was tuned to perfect capture of Mega Drive's analog RGB output, but it was doing very poor frame-rate conversion when 50Hz signal was input.
* Bezel covers few of the edgemost pixels of the panel, i.e Speedsys frame is invisible because of it.
* The panel has pretty slow response time, absolutely unfitting for scrolling games. Sonic on MD turned into a total blurry mess as soon as things started to move.
* Power on/off button is wired the wrong way around

The monitor lacked the board with SCART input so I cannot comment on if its inputs were better behaving. I would surely hope so because the rest has was a disappointment to put it mildly.

I did like the swivel and tilting capability and sound wasn't half bad among other monitors with little built in speakers.

And isn't the 1280x1024 resolution difficult to cleanly scale to (unlike 1600x1200, 1920x1200, or 4K)?
I like the idea of a retro themed LCD, but the 5:4 panel doesn't seem like the best choice for it.

65C02 wrote on 2025-03-10, 23:52:

And isn't the 1280x1024 resolution difficult to cleanly scale to (unlike 1600x1200, 1920x1200, or 4K)?
I like the idea of a retro themed LCD, but the 5:4 panel doesn't seem like the best choice for it.

Agreed. This was one of the common questions/complaints as to why they didn't use a 4:3 panel.

Mind you, it does do proper 4:3 aspect ratio with letterboxing. So in theory this gives you a 1280x960 display which at least can scale into 640x480 and 320x240.

However, this also assumes that image smoothing can be turned off. By default it does seem to be applying some image smoothing, so I'll have to see if there is a way to disable that.

edited:

Just tried Gateway (640x480 DOS game) and it is blurry due to image smoothing. This is a close-up of the image:

In comparison, here is a shot of a Dell 2007FPb: