Re: What am I looking at?

Posted on 21 minutes ago

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

No coprocessor there, and you arent upgrading anything with four 74 series chips 😀 this is some kind of a bugfix discovered in pre production, cheaper than scrapping all already manufactured defective boards.

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Re: How to make a better ramdrive

Posted on Today, 13:14

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

>486 > And it worked. >16mb seems to be missing source of your problems might be: > edo ram.

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Re: Bought these (retro) hardware today

Posted on Today, 11:58

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Pino wrote on Yesterday, 20:37: demiurge wrote on 2024-04-30, 22:01: Post the new S3 S27 to https://vgamuseum.info/ That is a unicorn! Really though to find one. indeed What is the deal with S3's Chrome cards?

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Re: Why do the voodoo 4 and 5 not have hardware support for T&L?

Posted on Today, 02:17

by

by rasz_pl

in Marvin \ Video

in Marvin \ Video

Also bear in mind, all of Quake3's transforms and lighting are entirely software calculated (regardless of hardware - this is by design) https://www.vogons.org/viewtopic.php?p=1244747#p1244747 even GLQuake uses glTranslatef(); glRotatef(); glScalef(); and afaik those are automagically TnL powered …

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Re: "USB keyboard support" not working on FIC (Iston) KA-6100

Posted on Today, 02:11

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Its entirely different thing. USB devices can report max USB pooling rate. I read somewhere about early bioses with USB support being confused by gamer mice reporting 1000Hz pooling rate. USB is one of those hundreds of pages standards, the only standard worse than USB is Bluetooth. Implementing …

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Re: "USB keyboard support" not working on FIC (Iston) KA-6100

Posted on Yesterday, 15:36

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That looks like a modern artisan keyboard with custom controller. Maybe its USB 2.0 only, maybe its using some niche controller inside like Teensy with incomplete/hacked keyboard USB stack, maybe its reporting very fast pooling rate, plenty of possibilities.

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Re: SBEMU: Sound Blaster emulation on AC97

Posted on Yesterday, 15:30

by

by rasz_pl

in Marvin \ Sound

in Marvin \ Sound

Then why some sound blasters are experiencing DMA cracking bug, others are not ;) ? :) Wasnt the conclusion after disassembly of different fw versions that DMA crackling is due to something inside ISA bus interfacing chip? So we dont really know >EVERYTHING about a soundblaster, and how it …

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

Posted on Yesterday, 10:29

by

by rasz_pl

in Marvin \ Video

in Marvin \ Video

Cirrus Logic CL-GD5426-28 ISA cards are plentiful and cheap, while chips are VLB capable. Might be easier to implement seeing they all have integrated DACs. Tons of NOS cl-gd5428-80qc-a chips at $8 on alliexpress.

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Re: "USB keyboard support" not working on FIC (Iston) KA-6100

Posted on Yesterday, 08:56

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Modern keyboard? Iv read musings about USB keyboard support, how supposedly some early bioses supported only the most basic USB keyboard messages, and keyboards trying fancy things (NKRO) will not work without ugly hacks like pretending to be several keyboards etc.

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Re: Why do the voodoo 4 and 5 not have hardware support for T&L?

Posted on Yesterday, 08:38

by

by rasz_pl

in Marvin \ Video

in Marvin \ Video

Tests from 1999-2000 show minimal % difference when going from high to low end CPU in real games on GF256. That first T&L implementation wasnt hugely helping even on low end Celerons. Compare GF245 SDR and Savage 2000 in Q3 with Celeron 366 vs P3 700 https://www.anandtech.com/show/429/5 https://www. …

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

Posted on 2024-04-30, 15:08

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

photos of front and back sweet Second, I have odd (at least not helpful) news. I cannot recreate the 4.45v situation again. where were you measuring that 4.45 before? its possible you measured in wrong spot >4.67volts at the turbo led. like this, bad spot to measure :) any Led output goes thru …

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

Posted on 2024-04-29, 13:25

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Where did you measure this 5V? is that right on the AT connector? btw I just noticed https://theretroweb.com/motherboards/s/epox-pronix-ep-p55-tf doesnt have a picture of your board. Would it be possible for you to remove all components and make a nice high resolution photo from the top and bottom? …

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

Posted on 2024-04-29, 06:41

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

those start at $10 on amazon :) https://www.cpu-world.com/CPUs/Pentium_4/Intel-Pentium%204%20631%203.0%20GHz%20-%20HH80552PG0802M%20(BX80552631).html 64TDP but 79W power draw :) and thats just the CPU. I dont know what the deal is with two power profiles 775_VR_CONFIG_05A 775_VR_CONFIG_06, maybe …

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

Posted on 2024-04-29, 05:01

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Shponglefan wrote on 2024-04-29, 04:46: Depends on the P4 though. I'm running a Cedar Mill with a TDP of 65W. I feel like the power hungry rep is somewhat misplaced and contributes to these processors being underrated. Put the system on a socket power meter and run some games in DOS, you will be …

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

Posted on 2024-04-29, 04:05

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ensign Nemo wrote on 2024-04-28, 23:56: underestimating their use for retrogaming. Given the ever increasing cost of old hardware Depends how much you play retro games, once a week for an hour or daily? With current electricity prices P4 setup (easy constant 150-200W in DOS) will cost you more than …

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

Posted on 2024-04-28, 22:06

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

since you have a scope of some kind put it on a 5V rail, is it steady or very spiky?

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Re: USB Keyboard + Mouse under DOS

Posted on 2024-04-28, 17:49

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

then those are precisely what you want usb https://github.com/No0ne/ps2x2pico bluetooth https://github.com/Hamberthm/esp32-bt2ps2 first one connects with two ps2 cables converting USB keyboard and USB mouse to ps2, you dont have to connect USB keyboard second one lets you use BT mouse over ps2

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Re: PSU for a retro PC

Posted on 2024-04-28, 10:55

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

eyalk4568 wrote on 2024-04-28, 08:10: Do these charts show FPS ? yes, and clearly 130-200 fps means your CPU sucks and you should feel bad ;P Seriously tho no idea what melbar meant, Its not like its a Willamette Celeron, your cpu is fine.

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Re: USB Keyboard + Mouse under DOS

Posted on 2024-04-28, 10:53

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

well now im confused, you didnt want usb mouse, but now you are looking for usb mouse? 😀

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Re: Asus K7M HP OEM Motherboard Won't Boot Past POST Screen Logo

Posted on 2024-04-28, 03:46

by

by rasz_pl

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Matrolisk wrote on 2024-04-27, 19:23: I get one beep, which I believe means all good I might need to buy a card. that would mean post finished, post card wont help you in that case hmm is your keyboard working?

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