Re: PicoGUS: ISA sound card emulator with Raspberry Pi Pico (Gravis Ultrasound, AdLib, MPU-401, Tandy, CMS)

Posted on Yesterday, 00:26

by

by Imperious

in Marvin \ Sound

in Marvin \ Sound

I posted some incorrect information previously. Apparently the joystick emulation is disabled by default. Only Version 2 Picogus supports these controllers without having to used a powered hub.

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Re: Bought these (retro) hardware today

Posted on 2024-11-29, 05:31

by

by Imperious

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Got this VLB card the other day. Nothing special. Was advertised as NOS but is clearly used as it is covered with a fine dust. It works and it wasn't too expensive so I am happy to have it in my collection. PXL_20241129_020432769.jpg I have that exact same card, but it has the 1MB memory chips …

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Re: Which Cache chips + TAG to get for 486 motherboard?

Posted on 2024-11-05, 00:27

by

by Imperious

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If You read the manual on the retroweb it will answer Your questions. Just get the FK chips. Chances are the writing on the chips has been reprinted, but there seems to be no datasheet for a K only cache chip. The Tag according to the manual is the same as the other chips, even the photo shows that. …

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Re: 3DFX Voodoo 1 Clock Speed Shenanigans

Posted on 2024-10-30, 02:09

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by Imperious

in Marvin \ Video

in Marvin \ Video

I've had my Diamond Monster Rev D card running as high as 57mhz in the past. I wonder if the memory is what is limiting some of the cards, or were later revisions of the chipset ic's capable of better speeds due to improved silicon?

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Re: 486 CPU testing

Posted on 2024-10-22, 03:42

by

by Imperious

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's C5 on the socket, which is VSS (GND). Maybe a cpu has been plugged in the wrong orientation? i just checked, so if the cpu was plugged in 180 degrees then that would be VCC going directly into the GND pin on the motherboard. 90 degrees either way is A29 (Address pin) or BS8# which is an …

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Re: 486 CPU testing

Posted on 2024-10-22, 00:20

by

by Imperious

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Are they 3.3v or 5v cpus? D3 is just a data pin, and that's whether it's socket 1,2, or 3. I would say it's a motherboard issue. You could measure the pin to gnd with a multimeter, either connected in the socket or not. This is a very weird problem to have, maybe attach a photo?

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Re: Voodoo2 on 3DMark99 ugly effects

Posted on 2024-09-04, 00:23

by

by Imperious

in Marvin \ Video

in Marvin \ Video

What refresh rate are You running at? That's the effect You would get on a crt if It is out of sync. Maybe try setting the monitor driver as LCD not CRT. Try 60hz if not already at that frequency.

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Re: Any Reason to Own a IBM AT If I Already Have an XT and a 486?

Posted on 2024-08-13, 00:19

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by Imperious

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a bunch of XT motherboards, most NOS, then a massive jump all the way to 486 and beyond. I've never felt a need for 286 or 386 systems. The XT is necessary to play all those earliest 4.77mhz speed sensitive titles, like what was on the apple 2 and other 8 bit computers. I remember playing …

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Re: S3 ViRGE VLB project (or " Making a Concurrent for Creative 3D Blaster VLB" )

Posted on 2024-07-19, 00:15

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by Imperious

in Marvin \ Video

in Marvin \ Video

Thanks everyone for clearing that up. I'm ordering from Digikey as shipping to Australia is free over $60 AUD.

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Re: S3 ViRGE VLB project (or " Making a Concurrent for Creative 3D Blaster VLB" )

Posted on 2024-07-18, 12:42

by

by Imperious

in Marvin \ Video

in Marvin \ Video

Line 38 of the parts list says 74F245 then at the end 74HCT245 in the Mouser part number. I know the F series are the fastest so the question here is does this card need the 74F245 or will a 74HCT245 suffice?

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Re: ASUS K7V Bricked the Bios

Posted on 2024-06-25, 05:00

by

by Imperious

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think Your only hope is to buy an eprom burner and then You can reflash the Bios chip removed from the motherboard.

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Re: VGA to HDMI converter

Posted on 2024-06-18, 00:26

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by Imperious

in Marvin \ Video

in Marvin \ Video

My old Dell U2412 monitor worked perfectly with all Dos resolutions including 720x400 70hz and also You could force 4:3 aspect. I now have a 144hz LG LCD and it will not show 720x400 70hz Dos resolutions. If Your monitor cannot do 70hz at all, even in Dos then the OSSC will not help. I use the OSSC …

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Re: 478 to 479 adapter anyone running one?

Posted on 2024-05-08, 00:35

by

by Imperious

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I dug out my Pentium M benchmarks from the 3dmark2001 thread.

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Re: Issue with my diamond voodoo 1, please help

Posted on 2024-04-30, 00:13

by

by Imperious

in Marvin \ Video

in Marvin \ Video

I highly doubt that would cause any issues. You haven't told us yet whether Any Dos 3DFX games work yet? like Tomb Raider for example.

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

Posted on 2024-04-23, 05:18

by

by Imperious

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You are correct. Check more sources of information I guess. EF is at the end though, setup pages, whatever that is. Anyway, more information on the hardware will be helpful.

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

Posted on 2024-04-23, 03:45

by

by Imperious

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

https://blog.theretroweb.com/2024/01/20/award-bios-beep-and-post-codes-list/ According to those lists C and E are at the end of the POST, not the start. I had a corrupted bios recently on a TX chipset motherboard, it was a bad bios chip but reflashing fixed it. Try flashing another eprom if You have …

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Re: Need info on type of chip used for Award Bios rom

Posted on 2024-04-09, 08:24

by

by Imperious

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The Bios size on the downloads from The Retro Web are 1M bit or 128k bytes, so as the photo shows a Winbond chip, it's likely going to be a w27c010, w27e010, or w29ee010. My opinion on the sticker is just pull it off and be done with it. That's just my opinion though.

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Re: GeForce4 Ti 4200 with 8x AGP (NV28) does not output digital signal through DVI out?

Posted on 2024-01-22, 00:19

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by Imperious

in Marvin \ Video

in Marvin \ Video

You wouldn't have a DVI port on it if there was no Digital video out. is there no LCD monitor You can try? I Assume You've tried 1920x1080 60hz as that would be the most compatible. Either it's a compatibility problem or the Digital video out on the video card is dead.

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Re: GeForce4 Ti 4200 with 8x AGP (NV28) does not output digital signal through DVI out?

Posted on 2024-01-21, 12:53

by

by Imperious

in Marvin \ Video

in Marvin \ Video

Maybe try it with a LCD monitor, not a tv, could be a compatibility issue. When You say You tried with a DVI to VGA converter, are You talking about an actual powered converter box or just one of those dvi to vga adaptors that used to come with the video cards, as they just route the 4 pin analog …

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Re: Sb16 Mixerset under win98 wont save settings

Posted on 2023-12-15, 00:16

by

by Imperious

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Make sure the files are not set to read only. This most often happens when copying from a cd to hdd. The proper way to run Dos games is from a Dos boot, not msdos mode or reboot to Dos, but that can be very time consuming and complicated to setup.

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