Re: DOS CD-Rom issues

Posted on 2021-05-12, 09:32

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok, so what's your autoexec.bat looking like now? And what does unisound /r output (should read the current settings)? Are you using devload to load oakcdrom.sys after running unisound? I notice in the unisound.txt instructions that it sets up the IDE IRQ based on the address. Given Win98 had the …

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Re: Identify motherboard Slot 1 SIS chipset

Posted on 2021-05-11, 22:15

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Good pointer. I saw the photo showed SI21, so searched for that and found: https://www.elhvb.com/mobokive/archive/Pine/Series-SiS_Chipsets/tl-si21/index.html The .doc file is a manual, could be the right one. [oh, wait, the photo imi posted had SI21 on the silkscreen, but I don't see that on PC@ …

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Re: Identify motherboard Slot 1 SIS chipset

Posted on 2021-05-11, 21:58

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

From flicking through some options, it looks sort of like an Acorp layout, except for the BIOS chip in the wrong place and the wrong chipset. Ok, those are pretty major differences, but they do have the RAM between the AGP and PCI slots. e.g. http://www.win3x.org/uh19/motherboard/show/7974

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Re: ECS 761GX-M754 no POST

Posted on 2021-05-11, 21:16

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok, so perhaps the FETs aren't switching since it doesn't look like you're getting a signal on the Gate. If I'm right about those two chips then the smaller one generates the timing based on the voltage feedback and the larger one actually switches the FETs on and off. You should find the 3 phases …

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Re: Reroute back USB to front panel USB

Posted on 2021-05-11, 18:30

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Any risk of frying the mobo if the pins are wrong? I have faith that they are fine, I would just hate to have to remove the tape if all of the connectors are separate.. I think if it's following the USB spec then there's supposed to be over-current protection on the motherboard. They did a …

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Re: I have the TURBO button in the Pentium75, what is it for?

Posted on 2021-05-11, 18:25

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

AlessandroB wrote on 2021-05-11, 18:16: i have tried it, seems not change anithing Did you try rebooting after changing it? I think I read somewhere that some chipsets (sorry, it's all a bit vague) only read the status of the turbo input on startup.

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Re: ECS 761GX-M754 no POST

Posted on 2021-05-11, 16:53

by

by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So, I looked close at my board and if I understand correctly, then this coil inductor is powered from ATX 12V connector and is connected with high side mosfets (K3918) and capacitors (TK 1800uF 16V), then NIKO P75N02LDG are low side mosfets (2 paralel for each of three phases) and ferrite chokes (" …

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Re: Identify me! - AT mainboard, Socket 7

Posted on 2021-05-11, 15:08

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

ildonaldo wrote on 2021-05-11, 14:19: Thanks, looks like a match, does anyone have a manual for this? That link to UH19 I found includes the jumper settings, if that's any use: http://www.win3x.org/uh19/public/motherboard/ … bb848798486.pdf

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Re: DOS CD-Rom issues

Posted on 2021-05-11, 13:34

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you try the Unisound option, then take note of Oetker's post from before: I'm not familiar with the stock drivers for that card. However UNISOUND should support it. https://www.vogons.org/viewtopic.php?t=72553 Note that the readme says Anyway as this tool is launched after config.sys, if you want …

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Re: DOS CD-Rom issues

Posted on 2021-05-11, 13:15

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok, this might be back-to-front, but try changing the CDIO line to 168, or 36E (the resources given in win98)

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Re: DOS CD-Rom issues

Posted on 2021-05-11, 13:07

by

by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So that's the autoexec.bat and config.sys connected to CDROM and that soundcard : [autoexec.bat] SET BLASTER=A220 I5 D1 T4 LH C:\DOS\MSCDEX.EXE /D:CDROM /L:D [config.sys] DEVICE=C:\DOS\HIMEM.SYS DEVICE=C:\SOUND\CS4232C.EXE /V /O /VSS4232.INI DEVICE=C:\DOS\DOAKCDROM.SYS /P:360,11 /D:CDROM I'm …

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Re: DOS CD-Rom issues

Posted on 2021-05-11, 12:38

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Bernkastel7734 wrote on 2021-05-11, 12:26: Tried that, nothing changed Could you post your config.sys and autoexec.bat? I'm guessing there needs to be some sound card driver or PnP setup loaded first to initialise the CDROM registers in the sound chip.

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Re: DOS CD-Rom issues

Posted on 2021-05-11, 12:22

by

by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

maybe try /p:168,11 for the oakcdrom.sys

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Re: Identify me! - AT mainboard, Socket 7

Posted on 2021-05-11, 12:09

by

by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Could be this: http://www.win3x.org/uh19/motherboard/show/5863

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Re: DOS CD-Rom issues

Posted on 2021-05-11, 11:21

by

by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Correction... in windows 98 device manager, view devices by connection, find the cdrom open the properties of the device to which the cdrom is connected and view the details. at least, I think that's it... can't recall it's been so long, close enough though. :-) Yep, so on mine the MKE bus is …

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Re: Athlon 64 5200+ Heatsink enough?

Posted on 2021-05-11, 11:08

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Quick update: Did a little test with CoreTemp last night, installing updates on Vista (Which takes some good 70% CPU) and the temps were at about 50°C, idle at about 30°C. That sounds promising to me :) Sounds good. I think, with the right ducting, that there's probably not much difference between …

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Re: DOS CD-Rom issues

Posted on 2021-05-11, 10:45

by

by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Tried to run it with the CDROM that was correctly recognised under Win98, still ' No device found' I've got confused here. So you've tried the soundcard, with a CDROM attached to it, in Win98, and the CDROM worked? If that's the case then the problem in DOS must be the driver. As the other chips …

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Re: DOS CD-Rom issues

Posted on 2021-05-10, 22:02

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It play sounds if I understand your question correctly. And yes, I have other PC that runs Win98. So should I connect that card to win98 Pc and see if it detects cdrom? Yeah, just thought it was worth checking to make sure the chip was responding. Give the card a try in Win98 and see what happens; …

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Re: DOS CD-Rom issues

Posted on 2021-05-10, 21:18

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by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just as an exercise I traced what I could see of the traces (with a little guesswork behind components). I noticed the mark that Weedeewee pointed out, it's on the A0 line (circled in yellow), so check for continuity between pin 35 on the IDE connector and pin A31 on the ISA slot (also pin 25 on U1 …

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Re: ECS 761GX-M754 no POST

Posted on 2021-05-10, 15:35

by

by snufkin

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That inductor coil reading 6 is odd, where are you putting the meter probes? Unplug the PSU cables, then put your multimeter in resistance mode and measure the resistance across it. Also measure the resistance from one of the +12V pins (where the yellow CPU power wires go to) to both sides of the …

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