Re: GeForce3 - mixing memory modules

Posted on 2024-07-10, 17:53

by

by Karbist

in Marvin \ Video

in Marvin \ Video

Do you guys know which version of mats works on GTX 465/470? mats version 367.38 works fine on GTX 480 but it shows weird memory bank letters for GTX 465/470: GTX 465 starts with Bank C: SUBPART RANK0 RD ERR RANK0 WR ERR UNKNOWN ERR ------------- ------------- ------------- ------------ FBIOC[ 31: …

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Re: ASRock 775Dual-VSTA and 775Dual-880Pro not POSTing. Suspecting the PSU.

Posted on 2024-07-06, 08:25

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Are these boards confirmed to be working? 500w psu is more than enough for them.

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Re: How can i remake Athlon A1200AMS3C to AMS3B (increasing multipler by pencil)

Posted on 2024-06-27, 20:13

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This might be useful : https://www.ocinside.de/workshop_en/socketa_resistors/

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-06-25, 13:41

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

nevermind.

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Re: What's the role of this PAL?

Posted on 2024-06-14, 09:04

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Since board has a creative audio chip, the PAL chip must be a bus arbiter, it shares the bus between one of the PCI/ISA slots and the audio chip. so without the PAL chip, audio and one of the PCI/ISA slots won't work.

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Re: Help me bring this board back to life - ASUS A8N-SLI

Posted on 2024-06-03, 09:36

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It looks like someone has used extreme heat to reflow the chip, although the chip internal resistance still looks good after that heat abuse, mine has dropped to 50 ohm. at this point you need either to properly reball the chip or inject lots of flux under the chip and reflow it again and hope for …

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Re: Help me bring this board back to life - ASUS A8N-SLI

Posted on 2024-06-03, 07:32

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

zuldan wrote on 2024-06-03, 06:36: Here are the measurements. Did you get this location from the boardview file? diode.jpg You forgot to measure the resistance of inductor close to the chipset to the ground. you're missing the vcore enable signal, so either the nforce chipset is dead or has bad …

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Re: Help me bring this board back to life - ASUS A8N-SLI

Posted on 2024-06-02, 09:10

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

- Motherboard powers on as soon as the board has power from the ATX This is not good, it means dead chipset most of the time, there's a big inductor close to the chipset, measure its resistance to the ground. also meassure the resistance of this mosfet to the ground where I have pointed the arrow : …

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Re: PWM controller for Gigabyte 8I865PE775-G-RH rev 3.0-4.9

Posted on 2024-05-30, 08:28

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's ISL6312CRZ, I highly suggest to download these 2 schematics to understand the difference between VRD10.1 and VRD11. https://elektrotanya.com/gigabyte_8i865pe775- … f/download.html https://elektrotanya.com/gigabyte_8i865gme-77 … f/download.html Filename 6312.jpg File size 1.95 MiB Views 138 …

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Re: Bought these (retro) hardware today

Posted on 2024-05-27, 16:00

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Got a box of six motherboards for 15 bucks. the interesting ones are Asus p3b-f, Epox nforce 2, giga 8vt800, the rest are meh. will they work or they all are junk. lol A.jpg B.jpg Violet one is so messed up it's going to work 100% LOL Good luck and post back for the curious bunch. Here's the update …

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Re: Bought these (retro) hardware today

Posted on 2024-05-25, 12:55

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Got a box of six motherboards for 15 bucks. the interesting ones are Asus p3b-f, Epox nforce 2, giga 8vt800, the rest are meh. will they work or they all are junk. 🤣 Filename A.jpg File size 1.67 MiB Views 954 views File license CC-BY-4.0 Filename B.jpg File size 1.43 MiB Views 954 views File …

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Re: Intel D865 PERL Resistor

Posted on 2024-05-23, 17:33

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's a 100nf MLCC capacitor. Filename cap.jpg File size 62.33 KiB Views 154 views File license Public domain

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Re: Geforce 2 ti repair attemp

Posted on 2024-05-22, 05:45

by

by Karbist

in Marvin \ Video

in Marvin \ Video

C9 is 330uf 6.3v tantalum cap, I believe it's size D. you can use any 1uf to 5uf mlcc cap for C6, It looks like size 0805 can fit in there although you have to measure the pads.

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Re: Geforce 2 ti repair attemp

Posted on 2024-05-21, 21:49

by

by Karbist

in Marvin \ Video

in Marvin \ Video

It would be better if you post photos of your card so we can see what's missing.

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Re: Nvidia Geforce FX5500 repair question

Posted on 2024-05-21, 07:00

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If the card has resistors on memory data lines, I would measure all of them to make sure they are not open.

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Re: help with Intel DH55TC and smoked component

Posted on 2024-05-17, 15:20

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yeah it should work fine, if you have a multimeter, measure the source pad of the mosfet when pc is off to confirm it's getting 5v. Filename 20240514_202603.jpg File size 116.41 KiB Views 253 views File license Public domain

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Re: help with Intel DH55TC and smoked component

Posted on 2024-05-17, 13:33

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This is dual 5v rail for the audio chip, 5v standby goes through this mosfet then a diode then it looks like to the input of the 5v regulator (78l05) and when pc is on, the input of 5v regulator should get power from 12v rail.

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

Posted on 2024-05-16, 16:26

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PD2JK wrote on 2024-05-16, 13:56: Blew up a Caviar 80MB hard drive, WDAC280. I can't make anything out of it. Diode or capacitor? It could be a TVS Diode if it's between 12v and ground.

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Re: help with Intel DH55TC and smoked component

Posted on 2024-05-15, 17:52

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There's another 22A17 which is not burnt in your pic, I guess it's a p-channel mosfet from those thick traces.

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Re: ECS K7S5A No POST/No Display, Troubleshooting Help

Posted on 2024-04-30, 16:04

by

by Karbist

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I did some tests on my gigabyte 7zx and code 85 is related to cmos setting is not saved and when you power up the board, it halts on this code and asks you to hit F1 to enter the bios settings or hit F2 to load the default setting and continue. so try F1 or F2 when you reach code 85 and see if it …

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