Re: Asus A7V600-X motherboard not posting

Posted on 2025-06-02, 20:13

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

New update. now the motherboard keeps beeping forever, like beep ... beep ... beep ... beep ... I have searched the motherboard manual and found no information regarding to that. Does anyone know what it could be? It may signal about RAM problem. Try to compare the behavior with and without DIMM. …

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Re: Asus A7V600-X motherboard not posting

Posted on 2025-05-06, 18:46

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello, I have an Asus A7V600-X motherboard and it is not posting. The PSU is not faulty... I have run the pc in many situations and thus I can conclude some stuff: - The PC only beeps once if I don´t plug any RAM. - The PC is on for a second and then it shuts off (with or without ram). - However, …

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Re: AMIBIOS tools questions.

Posted on 2025-04-30, 14:27

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hey guys, I got an old slot 1 motherboard made by MicroStar its the MS-6111 using the 440LX chipset. I flashed the latest bios to the motherboard in hopes that it would support larger HDD's but it didn't. I saw a video by Necroware on youtube about modding the old AWARD bios's with a tool named …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2025-04-22, 17:26

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have since replaced the blown MOSFETs (again) and the MOSFET drivers, and there's no more MOSFETs blowing up! Sadly Vcore is missing and the CPU is stuck in reset..... I did also buy an ADP3166 by accident (meant to buy an 3168), but 3166 has an CROWBAR pin on pin 6 instead of VID5 like 3168 has. …

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Re: Another day, another motherboard to repair (DFI P5BV3+)

Posted on 2025-01-22, 22:06

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

karicersken wrote on 2025-01-21, 17:55: Thread may be long gone, but I have the same error code on my mobo. Did you get it to work? Welcome to VOGONS. The debug code 0B issue isn't easy to fix. The simplest solutions was described in the topic : fresh CMOS battery, right position of Clear CMOS …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-08-25, 20:15

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's better to measure conductivity of every VRM mosfet and also power supply rails to the ground. Often shorted mosfets and their driver are replaced at the same time. It is necessary to check gate resistors. So It will be a lot of measure of conductivity to check many components before trying to …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-08-24, 19:02

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well... this is really bad. Went to test it today to see if something changed and... the board was powering off and on real fast and there was an unusual burning smell coming from the VRM mosfets. Nothing looks to be burned on the outside. There was also a weird "sizzling" noise too. I guess what …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-08-05, 11:51

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

kotel wrote on 2024-08-05, 11:18: The P4 connector only supplies voltage to the VRM controller and that supplies voltage to VRM? Yes. The idea is to supply a CPU core from a dedicated rail.

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-07-16, 17:32

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Got some time to work on this (sorry for not replying). By same effects I meant the VRM still shorts the PSU (my english can be sometimes hard to understand). Whats weird is that, after desoldering there weren't any connections to GND, 5V, 12V, 3.3V, 5VSB and 12V P4. After soldering it back on …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-07-08, 15:09

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Before desoldering check that the resistor's pads are connected to the VCC pin and +12V P4 rail using a multimeter in ohm-meter mode. Yes, I think it should be near ADP3168. It's a SMD resistor so it's better to use some magnifying glass or glasses to make desoldering proper. Usually the SMD …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-07-07, 20:02

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You don't have to desolder ADP3168 to watch it is shorted or not as you can just desolder the resistor 10 Ohm in the VCC circuit. I'd like to warning you not to power any mosfets if their gates are not connected to control schematics (eg. a pwm-controller or a driver were desoldered) because the …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-07-06, 09:05

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Did you measure it to GND? Does 12m ohms mean 12 mega-ohms? Then there're no shorts to GND in this part of the VRM. But you measured 174k ohms on drains of the high side mosfets Q3B2, Q3B1, Q2B1, Q1B1 . The drains are connected to 12vP4. How did it get so low as "to GND - 869 omhs". it's almost the …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-07-05, 14:32

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It would be better to take measurement without the cpu in the socket, there are some weird readings in your post, source of high side mosfets is connected to drain of low side mosfets and you say they have 2.4 and 4 ohms. also source of low side mosfets is connected to the ground and you say it has …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-07-05, 14:07

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Traced the VCC to be connected t0 12V CPU connector (getting 10 ohms on it). Reading with nothing plugged in are the following: to GND - 869 omhs to 12V CPU connector - 10 ohms Then voltage is going from 12vP4 through 10 ohm resistor as expected. IMO, 869 ohm to GND is not short but too low. I …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-07-03, 19:03

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Really? I looked twice but didn't find. Anyway, don't you think VCC=3.2v is too low to supply ADP3168 ? I looked into the schematics - the pin 28 (VCC) is connected to some sort of 12V through a 10 Om resistor there. The same is in the datasheet. It's better to check the ADP3168 VCC circuit of the …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-07-03, 10:27

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Measuring Q3B3, Q2B2, Q2B3, Q1B3 I'm only getting 12v on gate. Rest of the pins don't have any voltage. I don't think the mosfets would be damaged, but who knows what the previous owner was doing with it. Any ideas? Are they top (high-side) or bottom (low-side) mosfets? It's from a i865 reference …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-06-25, 11:24

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Measuring Q3B3, Q2B2, Q2B3, Q1B3 I'm only getting 12v on gate. Rest of the pins don't have any voltage. I don't think the mosfets would be damaged, but who knows what the previous owner was doing with it. Any ideas? Are they top (high-side) or bottom (low-side) mosfets? It's from a i865 reference …

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Re: Intel D865PERL cpu stuck in RESET, no post

Posted on 2024-06-21, 15:14

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Later on in the post I replaced the 2 caps. Problem is with flashing the BIOS. I don't own any DIP32 EEPROM programmers and PLCC32 to DIP32 adapters. Not only that, but the BIOS is soldered on. I don't think a bad bios would cause the CPU to not go out of reset (and probably not get its power since …

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Re: PCChips M575 intgrated audio connector pinout - help finding

Posted on 2024-06-13, 13:51

by

by Roman555

in Milliways

in Milliways

Is it any good? I watched some videos on YT and it doesn't look like it is that worthwhile. I have better ISA cards to use. Well, my goal is to have a pinout. It's not gonna be that difficult :) Maybe it'll benefit the community. Maybe the PCChips M571 connectors have the same pinout. Check here: …

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Re: What happened to the Spez FTP archive?

Posted on 2024-05-15, 15:16

by

by Roman555

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

infania wrote on 2024-05-15, 11:45: Hey. We have a mirror of that FTP Its syncing right now, so it is finished in a hour https://ftpmirror.infania.net/sites/ftp.spez.com.ua/ Cool! It was a pain to download from there as their ftp allows downloading only one file at once (IIRC).

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