Re: General instability with p3 1000 and msi bx master

Posted on 2020-04-10, 22:31

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for all the answers. I suppose is a generic sloket, but it has many jumpers so it shouldn't be that cheap, I have another one with no jumpers at all that is called: D370A VER:1.0 I'm pretty sure the system was very stable, I always used it as testing bench and I never had issues other than …

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Re: General instability with p3 1000 and msi bx master

Posted on 2020-04-10, 21:21

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The microcodes are the last version, voltage shouldn't be an issue since it's underclocked, but I raised it on the bios, now I get 1.76 but the issue is still there, I also tried an older cpu, it always get detected as pentium III mmx, but sse got detected on windows. I'm thinking to try another …

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General instability with p3 1000 and msi bx master

Posted on 2020-04-10, 17:16

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello, after the issues with the hard drive using the ata66 ports on that mb, I'm facing another issue: I upgraded the cpu (in a Slotket) from a p3 800 mhz to a P3 1000. The weird thing is after that upgrade the system has become very unstable, i'm actually keep using it with fsb 100 mhz (750 mhz), …

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Re: DS1287A

Posted on 2020-03-24, 01:10

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm noticing a weird ssue with Biostar MB-8433UUD, it came with a depleted Odin oec12c887a rtc, I changed it with a Dallas ds12887 with the cr mod, I noticed that the system is seldom booting fine while most of the times I got just a black screen. The Dallas battery with the CR2032 mod is proved to …

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Re: Advice about a build with UMC cpu.

Posted on 2020-03-21, 14:24

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I like the umc cpu because despite being a common SX cpu it was faster (clock to clock) than intel\amd counterparts. I already have a fast 486 build with amd 5x86 cpu, I just want to try overclock the umc cpu, since the vlb experiment failed I'm looking for some advices about what motherboard to use …

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Advice about a build with UMC cpu.

Posted on 2020-03-21, 12:59

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello, i'm looking for advices about building a 486 build with the UMC U5SX 486-40. I've tried to use a vlb motherboard and overclock the cpu to 50mhz but it's a no go, the system doesn't boot. I also have an Asus PVI-486SP3 but it probably won't support the 50 mhz fsb since it lacks the proper pci …

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Re: ARK2000MT with strange resistors

Posted on 2020-03-20, 14:51

by

by Nemo1985

in Marvin \ Video

in Marvin \ Video

This is yellow capacitors for fixes to make video card working properly that was left out during production. Cheers, I see, thank you for the clarification, I found the very same model card on ebay and the picture of the back shows no capacitors on the back: https://i.ebayimg.com/images/g/ …

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ARK2000MT with strange resistors

Posted on 2020-03-20, 14:00

by

by Nemo1985

in Marvin \ Video

in Marvin \ Video

Hello, I just received this somewhat rare card but as soon I opened the package I noticed this thing: https://imgur.com/a/W4NWQl0 On the back of the card there are 2 resistors clearly soldered out from factory. I tested the card on msdos and it seems it works fine, it also detects 2 mb of memory as …

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Re: Advice on making a stable VLB build

Posted on 2020-03-04, 10:30

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So, I got the isa videocard today, I tried to set the fsb to 50 mhz, but it doesn't boot despite my efforts: I took off the vlb i\o card, I loosen the timings of cache and memory to the slowest. The debug diagnostic card doesn't work with this specified mb... I'm thinking the issue could be the cpu …

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Re: Advice on making a stable VLB build

Posted on 2020-03-02, 21:33

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well you are lucky :P I tried the Tiido advice to populate the slots from the farthest one from the cpu but still the pc doesn't boot at 50mhz. Furthermore with the very same system, with the Cirrus Logic CL-GD5428 card I can use cache timings as 3-1-1-1, while if I swap it for a ARK Logic ARK1000VL …

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Re: Advice on making a stable VLB build

Posted on 2020-02-29, 08:00

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Always remember to look for master/slave vlb slots. Yes, it is a thing. One master slot, two slave slots. Populate master and then populate whatever slot you want. Some boards do not have writing on the slots. Next rule: 33 mhz FSB = 3 cards. 40 mhz FSB = 2 cards. 50 mhz FSB = 1 card. If you can …

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Re: Amd Am486 DX-40 with missing pin

Posted on 2020-02-28, 12:49

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well I tried the cpu as predicted I got black screen.

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Re: Advice on making a stable VLB build

Posted on 2020-02-28, 11:27

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm messing with my vlb system once again, I noticed that with the cirrus logic vlb video card the system is more stable compared to when I use the ARK Logic ARK1000VL card. The first allow me to have lower cache settings and use 0 ws for ram, while with the 1000VL I have to add the wait state. This …

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Re: Amd Am486 DX-40 with missing pin

Posted on 2020-02-27, 17:35

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Tomorrow I will give a try and report back... Tido, just in case, you will be my man 😁 Thank you everyone

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Re: Amd Am486 DX-40 with missing pin

Posted on 2020-02-27, 17:17

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

ops, I didn't notice it was socket 2... That's sad, what can I do now? Here is a picture of the cpu: https://imgur.com/a/PjsB8lF

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Amd Am486 DX-40 with missing pin

Posted on 2020-02-27, 16:34

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello, I received today a bunch of cpus with bent pins, the cpu on the subject had this pin that went of when just touched, it is the one on the keyed side. In this page is identified as D20: http://ps-2.kev009.com/eprmhtml/eprmx/h12203.htm In this picture is the A1: https://ptgmedia.pearsoncmg.com/ …

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Re: Msi Bx Master and Promise ATA66 issues (IRQ?)

Posted on 2020-02-24, 13:20

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I solved the issue, mainly thanks to a Phil's video (https://www.youtube.com/watch?v=-L-mLCk-CFM) he found there were some issues with some hard drives, I bought and get an hard drive that was the same as the one died and everything works like a charme...

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Re: How to overclock an S3 Virge?

Posted on 2020-02-21, 09:40

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Watch the card, the difference between EDO\FPM memory and SGRAM is visible. Link: http://vintage3d.org/virgedx.php

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Re: Msi Bx Master and Promise ATA66 issues (IRQ?)

Posted on 2020-02-21, 08:09

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

No, there is no way to access the bios: photo_2020-02-21_09-04-55.jpg Also the weird thing is that everything was working fine with the very same configuration but the 80gb hard drive, I will try another hard drive later... Change IRQ in Windows? Also enable "PNP OS installed" option. Maybe OS can …

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Re: Msi Bx Master and Promise ATA66 issues (IRQ?)

Posted on 2020-02-21, 06:13

by

by Nemo1985

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I will try that, but now I also noticed that after the windows trouble the hard drive is detected from the bios but not from any os, in fact it says there is no bootable device, if I turn off and on the pc, it works again. I'm wondering is it possible that there is an incompatibility between the …

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