https://www.ultimateretro.net/motherboard/ima … c9530433753.jpg

Quite a few differences on this on than yours but this is from ultimate retro

Thank you for your answer, this one is even more trimmed V. 1.1 than my V. 1.0 (welcome in MSI world!:) ). Unfortunatelly, I need to know the value of the resistor R41x, that leads to the +12V pin of connector and maybe still R394, R395.
Since I don't need to monitor the fan speed, I may not need to have populated the Q34, Q35 and electrolyte capacitor connected to pin 2? If yes, I need to know values for them too.

Enjoy 😉

for reference https://elektrotanya.com/msi_ms-6309_rev_1.0_ … f/download.html might be worth uploading to ultimateretro.net
another good source is https://www.xwfix.com/ they seem to have all the diagrams/boardviews/direct manufacturing documentation for programming P&P machines that ever graced Taiwanese factories and mysteriously leaked into the ether.

quicknick wrote on 2022-07-31, 16:52:

Enjoy 😉

Wow, this is an amazing community here at Vogons! Thank you very much. There's always a member who can give advice and want help solve a problem, whatever it is.
I know the website Elektrotanya, I got a CRT display schematic there once, but I didn't know there were motherboards too.

Ydee wrote on 2022-07-30, 11:05:

I bought some kind of MSI MS-6309 (Lite or whatever?) a lot trimmed: no ISA slot, USB headers and connector for system fan. I soldered an ISA slot and can survive without USB headers, but I could use an SYS FAN. Could one of the owners of the fully populated board take a photo of which parts I'm missing for the connector?
+12V goes to missing R41x (maybe 412?, it's overprinted) and I need to know what other parts and where to soldered - detailed photo will help me much. Thank you, friends.

Sorry for digging up the topic, but I prefer posting here than bothering the OP through PM so the knowledge can be shared.

I was previously trying to use a DFI CA61 rev.B1 which is the only board I have with ISA and socket 370 for a Pentium 3 1000EB, but the damn board has some problem when a bootable CD/DVD tries to access the HDD, because it hangs for a few minutes. I tried different drives, HDDs, IDE cables, PSUs, BIOS settings, ran memTest, but the problem still remained, so there must be a problem with the board itself. While searching my personal "junkyard" for alternatives, I only found one board which is the exact same board you have, an MS-6309 v1.0, also missing the ISA slot and fan header. I'm not worried about the fan header because there's always other ways of connecting fans, I'm more interested on the ISA slot.

The question is: did you just soldered on an ISA slot and nothing else? I'm asking because I don't see any component missing around the slot. only around the missing fan header which I won't need (for now?).

Usually it's plug and play, just solder the slot and you're good to go. I did that successfully on two boards, a MSI Socket A and a Gigabyte Slot A.

quicknick wrote on 2024-09-08, 23:09:

Usually it's plug and play, just solder the slot and you're good to go. I did that successfully on two boards, a MSI Socket A and a Gigabyte Slot A.

Nice! Well, except the part of "just solder the slot"... The holes are covered with solder, and removing it is usually a pain because the board absorbs most of the heat. I'm afraid to use a heat gun because it might damage components and/or plastics, maybe I'll use it on the back to warm up the board, then try to unclog the holes with my crappy soldering iron and crappy dessoldering wick. I have 3 ISA sockets soldered to a cut out piece of an old board, maybe I'll practice with those and see if I can remove one (or all 3) without damaging them with the heat, otherwise I'll have to buy an ISA socket from somewhere, and there's not much to choose from in this corner of Europe.

Ydee wrote on 2022-07-30, 11:05:

but I could use an SYS FAN.

Alternatively you could power any fan directly, using 12 Volt from any Power Supply outlet. For example from the molex connector. See image.

gerwin wrote on 2024-09-09, 16:22:

Ydee wrote on 2022-07-30, 11:05:

but I could use an SYS FAN.

Alternatively you could power any fan directly, using 12 Volt from any Power Supply outlet. For example from the molex connector. See image.

That post was back in 2022 😁

johnyept wrote on 2024-09-09, 16:56:

gerwin wrote on 2024-09-09, 16:22:

Ydee wrote on 2022-07-30, 11:05:

but I could use an SYS FAN.

Alternatively you could power any fan directly, using 12 Volt from any Power Supply outlet. For example from the molex connector. See image.

That post was back in 2022 😁

Yeah, I see that now. Nevermind then.

johnyept wrote on 2024-09-09, 09:27:

Nice! Well, except the part of "just solder the slot"... The holes are covered with solder, and removing it is usually a pain because the board absorbs most of the heat. [...]

I've seen folks on youtube unclogging holes with solder wick, that seems like wizardry to me... Myself I'm using a ZD-917 (de)soldering station, it helps a lot (also for harvesting ISA slots and the like from donor boards).

Just use a solder-wick and a good iron. It's done easily in a few minutes. It's just a matter of training... 😀

...and if it doesn't flow well, add some solder to the old stuff and heat it up this way. Also, a flux would be good to have...

Mr_Magoo wrote on 2024-09-17, 12:46:

...and if it doesn't flow well, add some solder to the old stuff and heat it up this way. Also, a flux would be good to have...

I've got all that, although the wick and the flux are probably low quality. I'll use the heat gun to heat the board from below, then try the add solder + wick method. If it doesn't work, I'll ask a friend for his branded solder remover gun. For now I'm just waiting for the slot to arrive.

Meanwhile I've been playing around with the board and found out that the BIOS is limited to 137GB HDDs, so I replaced the current 80GB HDD for a 160GB and played around with OnTrack Disk Manager's 9.57 and 10.46 versions. While Dynamic Drive Overlay does see the entire 160GB, it doesn't play well with my custom installation DVD, and neither does PLOP Boot Manager, so I removed DDO and I'll just use the 137GB which should be more than enough. Funny fact, XP setup does see the 160GB... whatever.

Also, BURNMEM.SYS just made my life WAY easier by limiting the visible memory to DOS/Windows 9x with one single line in the config.sys, this way I can use Windows 2000 with 768MB RAM and Windows 98 with 256MB RAM without system.ini shenanigans or other kind of 3rd party memory patches. I've even added it to my custom DVD, now I can choose to limit (or not) Windows 95 to 192/384MB RAM and Windows 98 to 256/512MB RAM directly from the installation menu. Laziness is the mother of all evils...

johnyept wrote on 2024-09-08, 22:29:

Sorry for digging up the topic, but I prefer posting here than bothering the OP through PM so the knowledge can be shared. […]
Show full quote

Ydee wrote on 2022-07-30, 11:05:

I bought some kind of MSI MS-6309 (Lite or whatever?) a lot trimmed: no ISA slot, USB headers and connector for system fan. I soldered an ISA slot and can survive without USB headers, but I could use an SYS FAN. Could one of the owners of the fully populated board take a photo of which parts I'm missing for the connector?
+12V goes to missing R41x (maybe 412?, it's overprinted) and I need to know what other parts and where to soldered - detailed photo will help me much. Thank you, friends.

Sorry for digging up the topic, but I prefer posting here than bothering the OP through PM so the knowledge can be shared.

I was previously trying to use a DFI CA61 rev.B1 which is the only board I have with ISA and socket 370 for a Pentium 3 1000EB, but the damn board has some problem when a bootable CD/DVD tries to access the HDD, because it hangs for a few minutes. I tried different drives, HDDs, IDE cables, PSUs, BIOS settings, ran memTest, but the problem still remained, so there must be a problem with the board itself. While searching my personal "junkyard" for alternatives, I only found one board which is the exact same board you have, an MS-6309 v1.0, also missing the ISA slot and fan header. I'm not worried about the fan header because there's always other ways of connecting fans, I'm more interested on the ISA slot.

The question is: did you just soldered on an ISA slot and nothing else? I'm asking because I don't see any component missing around the slot. only around the missing fan header which I won't need (for now?).

I only soldered the ISA slot, nothing else and it was fully functional. I had a soldering station with a vacuum, so it was easier.

gerwin wrote on 2024-09-09, 16:22:

Ydee wrote on 2022-07-30, 11:05:

but I could use an SYS FAN.

Alternatively you could power any fan directly, using 12 Volt from any Power Supply outlet. For example from the molex connector. See image.

Thank you, it's already done.

Well, my crappy dessoldering iron with solenoid pump action died after 1 minute of use, so I replaced it with an even cheaper 2 in 1 dessoldering iron with manual pump. Amazingly, I managed to open up all the ISA slot holes on the MS-6309 and solder a new ISA slot, and even remove an ISA slot from a bad board just for kicks.

The MS-6309 now has a working ISA slot with a Terratec Gold 16/96, which is a good MS-DOS sound card and more than enough for my use. Now all that is missing is a hole on the side panel to blow cold air directly over the graphics cards, and a 2nd Voodoo 2 for SLI, but hopefully one might be on its way soon.

When it's finally finished, I'll gladly open a topic on the "System Specs" sub-forum for a detailed view of the computer.