Re: Broken socket 7 board - Epox P55-TF. Stuck in post

Posted on 2024-05-11, 21:13

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

>I was curious as to what the HOLD pin reported on start up. I took another measurement and in the same 3 second time we go from a lower frequency pattern to a higher frequency pattern. I attached that video as well. >Hold Pin on Start Up.zip pin E-15 is going high after 3 seconds? At first its ~15 …

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Re: RIVA TNT2 M64 .VS. 3dfx voodoo 3 2000 AGP which is superior?

Posted on 2024-05-11, 08:38

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Demolition-Man wrote on 2024-05-10, 21:18: The TNT2 has MPEG2 acceleration only marketing wise :] It has "Hardware color space conversion" just like Voodoo3. gf256 added motion compensation, and only 2002 GeForce4 MX added iDCT. By 2002 even a potato cpu could flawlessly decode DVD in software.

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Re: Can a damaged video card kill an AGP port?

Posted on 2024-05-11, 05:00

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What am I supposed to be seeing on this photo? other than maybe a chipped resistor/capacitor? One way bad card can blow AGP is by shorting 3.3V and frying a track between AGP and ATX connector

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Re: USB 2.0 keyboard not recognized in USB 1.x ports. - Solutions?

Posted on 2024-05-11, 04:52

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Im not an expert on USB, but 0x0010 wMaxPacketSize (1 x 16 bytes) suggests its not using the simplified USB keyboard protocol (8 bytes).

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Re: USB 2.0 keyboard not recognized in USB 1.x ports. - Solutions?

Posted on 2024-05-10, 22:50

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That is correct. so there is something weird about it after all I'm waiting to hear back from Unicomp on that one, but at this point I'm pretty sure it's 2.0. so you still speculate, how bout you check instead https://www.thesycon.de/eng/usb_descriptordumper.shtml https://tewarid.github.io/2016/12/ …

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Re: is seeking out a slot 1 celeron worth it?

Posted on 2024-05-10, 18:20

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

increase performance by putting all memory bandwidth into one pool that allowed either CPU or GPU access it. This philosophy was tried exactly twice in the PC world, with the ALi Aladdin 7 chipset that had a dual-channel SDR-SDRAM memory controller and an ArtX precursor to the Radeon design for VGA …

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Re: USB 2.0 keyboard not recognized in USB 1.x ports. - Solutions?

Posted on 2024-05-10, 17:38

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I also have a Tripp-Lite 0DT60002 USB to PS/2 converter for this build, but it's also USB 1.x. what does that mean? Unicomp doesnt work with this adapter either? My other USB keyboards seem to work with both devices without issue, so I'm guessing my new Unicomp model is USB 2.0 so was I right in …

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Re: Floppy controller problem with a MSI K7T Turbo2 motherboard

Posted on 2024-05-10, 17:29

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

>Used multiple different floppy cables that was my guess, try tracking floppy connector further and check continuity, maybe there is a crack somewhere along the way.

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Re: Compaq Evo malfunctioning on stock 18,5V voltage

Posted on 2024-05-09, 22:21

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

broken laptop, even 16V should be fine.

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Re: ECS UC4914-G - Requesting GAL chip dump

Posted on 2024-05-09, 22:08

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does it work? is it dead? have you traced where the PAL is connected?

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Re: Broken socket 7 board - Epox P55-TF. Stuck in post

Posted on 2024-05-09, 01:44

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This is great bad news, so the CPU crashes, somewhat explains glitchy postcard output. Now to "only" figure out if its the CPU or chipset making it crash. Can you capture CPU Voltage rails during this 1 second just after reset to see if its messy, zoom in as much as you can. Optimally you could …

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Re: 3 (+3 more) retro battle stations

Posted on 2024-05-09, 01:28

by

by rasz_pl

in Marvin \ System Specs

in Marvin \ System Specs

Sorry for missing it. Does the BL3 system also have problems with floppies? in https://www.vogons.org/viewtopic.php?p=1081312#p1081312 you reported system 1 FDD working. Weird to have working fdd but still L1 problems with Adaptecs. Would it be fair to say the problem is not SCSI adapters, but …

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Re: At which point does pcie nvme become faster?

Posted on 2024-05-08, 22:32

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

In theory NVMe drive is a busmaster and with proper driver will fully bypass CPU.

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Re: Nforce2 build, no beeps, no POST?

Posted on 2024-05-08, 22:23

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

>nforce 2 consensus seems to be those chipsets are from same era as bumpgate gforces = trash you can try by warming the chipset with a hair drier to verify its the bumpgate fatality

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Re: Intel 486DX4 vs Cyrix 5x86 showdown (at high FSB frequency)

Posted on 2024-05-08, 21:36

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

megatron-uk wrote on 2024-05-08, 08:03: Quake, in particular, is not very cache friendly Its more of Quake exuberating and exposing poorly implemented caches. Same situation on socket 5/7 in non PB configurations.

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Re: 3 (+3 more) retro battle stations

Posted on 2024-05-08, 21:10

by

by rasz_pl

in Marvin \ System Specs

in Marvin \ System Specs

>The label "BL3 L1" points to problems associated with the IBM BL3 processor when its level 1 cache is enabled. You got L1 problems at high FSB but not on 10MHz? That doesnt sound right for L1 compatibility issue.

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Re: Autodetect of WD Caviar HD on Gigabyte 6BX7 board

Posted on 2024-05-07, 20:48

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

128GB is one of hdd size barriers, might need newer bios or bios patcher

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Re: Bought these (retro) hardware today

Posted on 2024-05-07, 18:49

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

~50-60MB of ram. We are looking at ~$10K in 1987 money here 😁

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Re: Covox and win98se

Posted on 2024-05-07, 18:00

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The problem with pc speaker is that it is 1-bit device modern fancy Class D amplifiers are also 1bit, so were CD players with 1-bit Sigma Delta DACs :) So I am pretty sure that it will be very demanding. But covox is 8-bit device. So I want to know if it is possible to use it as a sound device with …

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

Posted on 2024-05-07, 03:24

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

can be one of those funky Rifa capacitors

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