Re: "CMOS inoperational System Halted" error on Unknown 386 board

Posted on 2022-01-01, 20:12

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I cleaned those points and it turned on! It had stopped turning on and was in the three long beep state. Now it is in an infinite boot loop: right after the memory test the system beeps and restarts a few times and eventually ends up with "CMOS Inoperational. System halted" with serveral loud short …

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Re: "CMOS inoperational System Halted" error on Unknown 386 board

Posted on 2021-12-31, 21:30

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've removed the chips. The traces seem alright! I tried to boot after re-seating and cleaning the sockets, but the "3 long beeps" remained. Should I be trying something different?

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Re: "CMOS inoperational System Halted" error on Unknown 386 board

Posted on 2021-12-31, 19:22

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If there´s no difference between Turbo and Non-Turbo mode, then the 25MHz CPU running at 33 MHz is not the problem. At least not at themoment until you have fixed the CMOS error message. Makes sense. Thank you for the tip! Since there has been considerable battery leakage in the past you should …

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Re: "CMOS inoperational System Halted" error on Unknown 386 board

Posted on 2021-12-31, 18:48

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

3V will do. The 25 MHz CPU is overclocked by 32% at the moment. This c a n be o.k, but it could also incur instabilities. Did you test with the Turbo-Switch closed? (This should take care of the overclocking) Yes, the turbo switch is closed (and turbo LED is on). Would this be the right approach?

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Re: "CMOS inoperational System Halted" error on Unknown 386 board

Posted on 2021-12-31, 18:42

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just tried adding a 1.5v "boost" (LR-44 battery in series). Pin 63 measured 3.0V against the battery ground pin (system off). When the system is on, pin 63 against pin 204 (GND) reads 4.8V.

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Re: "CMOS inoperational System Halted" error on Unknown 386 board

Posted on 2021-12-31, 18:28

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi BitWrangler, thanks for the analysis! First step, try a battery on it. I'm using a CR2032, do you think this should work? However there's a couple of things I'm not happy with, from the getting an unknown board to exhibit full functionality point of view... i) The 66 Mhz crystal implies that the …

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Re: "CMOS inoperational System Halted" error on Unknown 386 board

Posted on 2021-12-31, 18:23

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You folks are AWESOME! Thank you so much for all the replies so far. Found a possible match on ultimate retro: https://www.ultimateretro.net/en/motherboards/2091 Layout looks the same. Anyway, yes the missing/failed tants will mean the power supply voltages will be noisy, which can cause many weird …

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Re: "CMOS inoperational System Halted" error on Unknown 386 board

Posted on 2021-12-31, 17:53

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I wonder what "CN1" is for. An additional RAM-card? I think so! It would be lovely to find the manual for this board. I will ask the seller if they have more information on it. BTW, this was the ad https://www.ebay.com/itm/265391155051.

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Re: "CMOS inoperational System Halted" error on Unknown 386 board

Posted on 2021-12-31, 17:51

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I will certainly publish the bios rom! I tried to boot now, but I didn't manage to do so. The system keeps failing with the 3 long beeps. After 4h-8h it usually boots up (when there is no battery present). I've downloaded AFU DOS 4.4 from AMI. Would this be the right tool to dump the BIOS? I don't …

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"CMOS inoperational System Halted" error on Unknown 386 board

Posted on 2021-12-31, 17:09

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I have just acquired this 386 board on ebay (seems to be from TI, but there is also an HT/HD symbol, maybe Headland?). The model seems to be HT BV-0 E105181. On the boot screen it reads in the bottom BT13-1187-011091-KF. Once turned on, it is intermittently failing with "CMOS inoperational …

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Re: Help with SB32 CT3600 on Windows 95c

Posted on 2021-05-14, 11:05

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hey Horun, thank you so much for the help! I don't I think I tried that. The only thing I tried was the "diagnose.exe" binary. Unfortunately the board has no RAM in it. Could it be due to that? Do you have a reference on where I can find this utility?

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Help with SB32 CT3600 on Windows 95c

Posted on 2021-05-13, 11:38

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I'm trying to setup a CT3600 but no matter what I do (followed a few guides with fresh W95/DOS6.11 installs), I can't get aweutil (on dos) or the Advanced Wave Effects Synthesis for AWE 32 to work. On Windows I when I try to open the AWE Control Panel, I get this error: https://pasteboard.co/ …

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Re: IBM Aptiva 2144 front panel hinge

Posted on 2021-05-09, 23:15

by

by alpm

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Progress update, though I still have no idea how the original left hinge looks, I managed to draft one that works. I'm attaching the latest source files in case they are useful to someone else. Aptiva 2144 right hinge R2.jpg Aptiva 2144 left hinge R8.jpg Hey Sam, can you share which material you …

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Re: Voodoo 5 5500 only working on single GPU mode

Posted on 2018-08-02, 02:29

by

by alpm

in Marvin \ Video

in Marvin \ Video

Hi Justin, thank you for tip! Will try that out and take pictures of the board, screen and make a video of it running some games. GTA I even in single GPU presents some weird flicker. Quake I (glquake) some strange flicker on ammo and other text info. Have to confess I totally tempted on trying out …

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Re: Voodoo 5 5500 only working on single GPU mode

Posted on 2018-07-31, 04:13

by

by alpm

in Marvin \ Video

in Marvin \ Video

So I've recapped the whole thing. Still getting that awful freeze. Used vcontrol and was able to force it to only use 2mb for textures. Unfortunately, no luck there as well. What would you guys recommend? I've also updated my BIOS from 1.06 to 1.18 and no luck as well. Guard band clipping was …

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Re: Voodoo 5 5500 only working on single GPU mode

Posted on 2018-07-17, 01:05

by

by alpm

in Marvin \ Video

in Marvin \ Video

Unfortunately the Sideband clipping feature being off/on doesn't make a difference in my case. See the crash here: http://imgur.com/P8gbb8W I will try 3d Mark to see if any of the memories gone bad.

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Re: Voodoo 5 5500 only working on single GPU mode

Posted on 2018-07-16, 01:45

by

by alpm

in Marvin \ Video

in Marvin \ Video

I tried it on glquake, Quake 2 (3dfx glide mode) and the DirectX Diagnostic tool (dxdiag). I will try disabling the setting you said and report back. Another weird thing is that I'm seeing on GTA (doesn't crash with SLI on) is a lot of flickering, like, a lot. I will also capture some of it and post …

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Re: Voodoo 5 5500 only working on single GPU mode

Posted on 2018-07-15, 20:14

by

by alpm

in Marvin \ Video

in Marvin \ Video

Thanks @chrismeyer! Will do that and post some pictures of the card and issue.

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Voodoo 5 5500 only working on single GPU mode

Posted on 2018-07-14, 14:35

by

by alpm

in Marvin \ Video

in Marvin \ Video

Hi guys, Just got my hands on a VooDoo 5 5500. Bad thing is that it is only working on single GPU mode. When I switch to the SLI mode the screen gets taken over by artifacts and the computer freezes. On a thread by akbkuku ( https://www.vogons.org/viewtopic.php?f=63&t=59870 ), I've noticed that mine …

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