Re: Voodoo 5 5500 problem after flashing Bios

Posted on Today, 13:34

by

by Doornkaat

in Marvin \ Video

in Marvin \ Video

I'm going to say this was to be expected but recapping a ~20 year old card can't hurt so best case after the EEPROM swap it'll be like new again! :-) BTW: I do believe that if you have a motherboard with a EEPROM socket of the same footprint (your CUSL2-C may even have one) you can use that with …

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Re: Fixing a basket case Dell 466/L

Posted on Today, 13:32

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hey dude! After taking a look at the pictures and seeing the sheer amount of corrosion especially on IC legs I relly do not think there's any point in remote troubleshooting this board. One needs to be able to probe the ICs and solder connections and see wether they're working or not if they're that …

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Re: GA-5AX Rev 5.2 (Apparently dead)

Posted on Today, 13:06

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Good luck! Personally I expect a failed transistor or even a large IC to be the issue so if the POST card doesn't identify the problem the board may be a future project for when you have honed your skills a bit. 😀

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Re: Fixing a basket case Dell 466/L

Posted on Yesterday, 03:10

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I don't know what POST diagnostics card you're using so I can't interpret those LEDs. Is the CPU known good? Also as mentioned before high res pictures might help.

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Re: GA-5AX Rev 5.2 (Apparently dead)

Posted on 2020-09-29, 21:08

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

First you can buy a POST diagnostics card and see if this will give any hints. If it doesn't you can start probing various transistors with a multimeter to see wether they output plausible voltages. After that you can use an oscilloscope to probe clock signals and data lines. As a last effort you …

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Re: 4Mx9 70ns 30-pin SIMM

Posted on 2020-09-29, 16:36

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Very nice indeed. Any chance you're going to design 16MB sticks for maxing out AWE32 cards?

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Re: ASUS TUSL2-C rear USB ports not working - voltage too low

Posted on 2020-09-29, 14:15

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you're still getting ~2.5V on the port continuity is to be expected on the fuse. It probably just has higher than usual resistance if it is indeed responsible for the voltage to drop from 5V.

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Re: Physically Missing BIOS Chip - SY-6BA Soyo

Posted on 2020-09-29, 14:07

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Most BIOS EEPROMS used on 686 class machines are compatible. Most likely the manufacturer used at least pin compatible chips on all of their Pentium II/III boards. I'll guess you have a 95% chance when going with one of the board's variants' EEPROMS as long as it has the same foorprint. If you have …

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Re: Tualatin 1.4Ghz 512k not booting on MSI 815EPT Pro

Posted on 2020-09-29, 03:03

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well, before we get too deep into all kinds of what ifs it may be best to just try those basic troubleshooting steps first. 😉 But regardless of what is going on with that particular board you should probably consider aquiring some basic soldering skills if you want to stick to this hobby. All of …

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Re: ASUS TUSL2-C rear USB ports not working - voltage too low

Posted on 2020-09-29, 02:30

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm also suspecting the fuse. It's most likely the larger rectangular green flat part that reads 'P 160' on it. It is marked as F3 on the PCB silkscreen.

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Re: Tualatin 1.4Ghz 512k not booting on MSI 815EPT Pro

Posted on 2020-09-28, 20:09

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The whole process is about narrowing down the problem: Underclocking it either manually or by triggering fail safe mode will reduce power consumption and increase stability. This way if it posts underclocked you know the CPU isn't completely dead and the board/BIOS has no problem with the CPUID. The …

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Re: Tualatin 1.4Ghz 512k not booting on MSI 815EPT Pro

Posted on 2020-09-28, 17:02

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You could try underclocking it to 100MHz. The board might also have a fail safe mode that'll clock the FSB @66MHz.

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Re: Tualatin 1.4Ghz 512k not booting on MSI 815EPT Pro

Posted on 2020-09-28, 14:51

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There may be multiple revisions or versions of this board some of which do support the CPU while others don't. Try to find out wether your board is identical to the one the 1.4GHz CPU actually runs on. If the board's power delivery is indeed a bit tight for the 1.4GHz model but somebody else got …

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Re: Troubleshooting Hercules Dynamite VLB card (Tseng ET4000)

Posted on 2020-09-28, 08:00

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by Doornkaat

in Marvin \ Video

in Marvin \ Video

On the picture you posted it looks ever so slightly like R21 (next to the RAMDAC) was cracked. I believe R21 is connected to the blue signal however so it is probably just a scratch and not related to your issue but still it may be worth checking it out.

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Re: Cleaning stamps from CPUs

Posted on 2020-09-28, 04:40

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Give it a good scrub with an old toothbrush as well and maybe add (dish) soap.

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Re: Cleaning stamps from CPUs

Posted on 2020-09-27, 19:45

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Have you tried water? And no, I'm not trolling.

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Re: Just a thought: modern PSU, converting 12v to 5v

Posted on 2020-09-27, 08:09

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes it is possible. However: Re: Modern PSU for Pentium 3 what 5V xxA ?

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Re: Voodoo 5 5500 problem after flashing Bios

Posted on 2020-09-26, 21:32

by

by Doornkaat

in Marvin \ Video

in Marvin \ Video

There are multiple instructions on that site. I would always recommend using a PCI graphics card with another vendor's chipset as the primary display adaptor when flashing an AGP card. Did you do this or did you try it blind? You can make sure the EEPROM is ok by reading its contents and comparing …

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Re: Voodoo 5 5500 problem after flashing Bios

Posted on 2020-09-26, 21:08

by

by Doornkaat

in Marvin \ Video

in Marvin \ Video

I would really not suspect capacitors to be the issue here. Maybe the EEPROM on the card is bad? How did you go about flashing the video BIOS? Edit: Oh, with the last picture this could be a whole lot of problems, maybe even related to capacitors after all. But I would start by examining the video …

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Re: RetroBrite Past the point of "original whiteness?" Suggestions?

Posted on 2020-09-26, 20:28

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by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

AngieAndretti wrote on 2020-09-26, 20:18: Recipient says he's happy with it. He better be. The drive turned out real nice.

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