Re: Nvidia GeForce 2 Ultra - Trying to fix

Posted on 2024-10-09, 16:53

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The 2 caps under Q806 and Q807 are identical, if your mutlimeter can measure caps, desolder c923 and measure it. C340, C360 and C324 are usually 100nf caps around the memory chips. high quality photos: https://vgamuseum.ru/gpu/nvidia/nvidia-quadro-2-pro/

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Re: Acorp 6BX81 looses BIOS settings

Posted on 2024-10-07, 17:38

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Most likely the solder joint under the chipset is corroded.

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Re: Acorp 6BX81 looses BIOS settings

Posted on 2024-10-06, 16:59

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Put your multimeter in micro amp mode and measure the battery current draw while psu is disconnected, it should be around 10 micro amps.

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Re: What retro activity did you get up to today?

Posted on 2024-09-30, 11:59

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

BitWrangler wrote on 2024-09-30, 11:44: I would never have thunk they would have tried to get away with that though, it's gotta be a bit obvious when things report radeon when you think you bought a geforce. These fake cards came with driver cds with modified device name, for example Redeon …

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Re: What retro activity did you get up to today?

Posted on 2024-09-30, 11:26

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I was checking a box full of salvaged Geforce FX 5500 cards and saw these 2 fake cards: Filename front.jpg File size 1.7 MiB Views 699 views File license Public domain Filename back.jpg File size 1.09 MiB Views 699 views File license Public domain some kid back in Geforce FX days was wondering why …

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Re: Bought these (retro) hardware today

Posted on 2024-09-25, 11:40

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought this Gigabyte 7zxr-c, it has the same features as 7zxr except the promise raid is not populated. also north bridge fan is mounted backwards. 🤣 Filename 7zxr.jpg File size 149 KiB Views 552 views File license Public domain

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Re: Replacement Silver Capacitors for Soyo SY-KT600 Dragon Ultra

Posted on 2024-09-12, 22:29

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You can cut the silver heat shrink on the old cap with a hobby knife and put it on the new cap with the same size.

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Re: Bought these (retro) hardware today

Posted on 2024-08-20, 12:23

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For the three 8i865pe775 board, at least one problem is obvious: bad/bulging capacitors. Let's hope that's all that's wrong with them, as that would make them an easy fix. Otherwise, I tend to be weary of stuff with LGA sockets, since they often get mistreated and get bent pins. The three …

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Re: Bought these (retro) hardware today

Posted on 2024-08-19, 19:42

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought a Gigabyte 8i875 ultra and three 8i865pe775-g-rh Rev4.9 motherboards, they were pretty cheap since advertised as not working. I will find out what's wrong with them once they arrive. the socket 775 boards support C2D E7600 and C2Q Q6700 with modded bios, really decent agp boards. 8i875.jpg …

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Re: ECS P6BAT-A+ REV 1.20 - no life

Posted on 2024-08-17, 17:22

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Check if one of the two power button pins have 3.3v or 5v.

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Re: ECS P6BAT-A+ REV 1.20 - no life

Posted on 2024-08-17, 16:08

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Someone has yanked the heatsink with a screwdriver, the NB chipset's pcb is damaged, same goes for the solder balls under the damaged area.

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Re: MSI MS-7046 VER.1 - shorted northbridge??

Posted on 2024-08-06, 08:29

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If there's a cpu in the socket, 5.8 ohms is the cpu internal resistance. you should remove the cpu and measure again.

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Re: LGA 775 Motherboards with AGP Slots

Posted on 2024-08-05, 18:03

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PcBytes wrote on 2024-08-05, 17:45: ASUS P5P800 is also full ATX. Yes but it does not support Core 2 Duo cpu.

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Re: Asus P2B-F (rev 1.0): no video signal after BIOS update

Posted on 2024-08-05, 16:47

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does it attempt to read the floppy disk when you turn it on?

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Re: MSI MS-7046 VER.1 - shorted northbridge??

Posted on 2024-07-30, 19:28

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I made a mistake, this is a DDR1 board, so 2.7v is correct for the memory rail. 1.7v on the other rail is fine too. sorry I ran out of ideas.

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Re: MSI MS-7046 VER.1 - shorted northbridge??

Posted on 2024-07-30, 18:10

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I marked the inductors, if they are not shorted to the ground, turn on the board and make sure 1.8v and 1.5v are present on these inductors. Filename ms-7046.jpg File size 558.96 KiB Views 170 views File license Public domain

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Re: MSI MS-7046 VER.1 - shorted northbridge??

Posted on 2024-07-30, 12:58

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This board has 2 switching buck converter , the one near the pci-e generates 1.5v and the one under the ram slots near the atx connector generates 1.8v, you need to measure the resistance between the output inductor and ground and see which rail is shorted. there is a chance that the low side mosfet …

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Re: Need help to restore ASUS CUR-DLS

Posted on 2024-07-27, 05:21

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

R22 and R23 are those 2 big 330 ohm resistors, the marking for the inductor is L23 printed right next to RN10. you are missing 5 ferrite beads in total, L10-L13 and L23. also RN5 is damaged and should be replaced. RKM19 is 2n7002 in sot-23 package.

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Re: Asus CUV4X - C1 diag code no beep

Posted on 2024-07-13, 16:19

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I would check those 3 black capacitors close to the inductor for the memory rail with an ESR meter. I would also check back of the board for any scratches on the traces between the northbridge and ram slots. also corrupted bios can cause this issue.

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Re: GeForce3 - mixing memory modules

Posted on 2024-07-10, 21:03

by

by Karbist

in Marvin \ Video

in Marvin \ Video

Try 343.96: https://drive.google.com/file/d/17wOPsv60-9ASBE9mEqIyP3ciB4Az_SAy/view?usp=sharing Thanks, this seems to work. GTX 465: LANE EB0 READ ERR EB0 WRT ERR UNKNOWN ERR ------------ ------------ ------------ ------------ FBIOB[31: 0] 0 0 0 FBIOB[63:32] 0 0 0 FBIOC[31: 0] 0 0 0 FBIOC[63:32] 0 0 …

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