Slowest possible CPU on socket 478

Posted on 2024-02-22, 01:06

by

by Danger Manfred

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello! I know this may sound like a stupid question, and I doubt many people were ever interested in the *lowest* end models of CPUs, so it's possible nobody ever bothered to find out but: For reasons I want to fit a socket 478 motherboard with the slowest possible CPU (yes, I know I can disable the …

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Re: Peltier cooling 486 CPUs - is this viable for everyday use?

Posted on 2024-01-03, 19:15

by

by Danger Manfred

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I just remembered I also have two old commercial Peltier CPU coolers for the socket 478. The ActiveCool AC4G-D, I bought them as new old stock for 15€ each because I saw them and thought what cool Oddware that is. Apparently they poll the temperature of the coldplate between CPU & Peltier element …

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Re: Peltier cooling 486 CPUs - is this viable for everyday use?

Posted on 2024-01-03, 06:39

by

by Danger Manfred

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I was a fool to expect anyone to read past the title. I am aware of the greater risk in case the Peltier element fails - which is exactly why I wrote of my intention to, if possible, only have the element active during overclocked benchmark sessions once in a blue moon. Everyone knows of the …

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Peltier cooling 486 CPUs - is this viable for everyday use?

Posted on 2024-01-02, 22:14

by

by Danger Manfred

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, as the title says, I'm wondering how to go about Peltier cooling a 486 CPU. In my case, it's an AMD Am5x86 133 ADW on a Gigabyte GA-486AM/S motherboard that supports very high FSBs up to 66. Now of course I quickly fantasized about running it at 4x50 or 3x66 MHz, but I'm having a crucial issue …

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Re: Looking for a VGA BIOS: Nvidia Geforce PCX 5900.

Posted on 2023-11-14, 22:10

by

by Danger Manfred

in Marvin \ Video

in Marvin \ Video

Thank you so much! Where did you find that?

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Looking for a VGA BIOS: Nvidia Geforce PCX 5900.

Posted on 2023-11-14, 19:40

by

by Danger Manfred

in Marvin \ Video

in Marvin \ Video

Looking for the card's BIOS, I already looked in techpowerup's VGA BIOS collection but it's not there, Found no video BIOSes in the VOGONS driver library, and I had no luck googling for it either. I'm getting desperate, and would be extremely grateful for any hints on where to get it (or if somebody …

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Re: 1024Kbit 10ns Cache modules - are they legit?

Posted on 2023-11-10, 22:14

by

by Danger Manfred

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's fair. The offer on Aliexpress is for packs of 5 anyway, so I'd buy 10, and if 1 or 2 are defective, that would still be fine for the 8 SRAMs I need. Luckily I still have a 512Kbit TAG RAM, that should be sufficient for 1MB Cache.

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Re: 1024Kbit 10ns Cache modules - are they legit?

Posted on 2023-11-10, 12:19

by

by Danger Manfred

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Those aren't "cache modules", those are static ram ICs. Forgive me for using the wrong term here, the plan is to use SRAM ICs as L2 cache, though. I have since found a decade-old thread here on VOGONS (https://www.vogons.org/viewtopic.php?t=31036) that I didn't want to necro, where somebody had …

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1024Kbit 10ns Cache modules - are they legit?

Posted on 2023-11-10, 09:54

by

by Danger Manfred

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I found these IS61C1024-10N SRAM cache modules on Aliexpress, and was wondering if they can be real. I have a very fast 486 motherboard, an AMD AM5x86-133 CPU and 2x32MB of 72pin 60ns FPM RAM, but am currently stuck on 256K cache, which is only sufficient for write-through mode, so if I want to use …

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Re: Guillemot Maxi Studio Isis DOS support

Posted on 2023-10-17, 20:36

by

by Danger Manfred

in Marvin \ Sound

in Marvin \ Sound

Bumping because this also interests me and I want to see OP getting help, but cannot provide help myself right now. However, I think it would be helpful to know the exact motherboard you're using, and the driver version you installed (source might also be interesting). I might be able to provide the …

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Re: Asrock 775Dual VSTA & Core4Dual thread

Posted on 2023-10-15, 08:50

by

by Danger Manfred

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Any source on what BIOS versions support what CPUs? I can't believe how shitty or nonexistent BIOS infofiles are. "Added CPU microcode" without mentioning for which CPUs or CPU series is the best you'll ever get out of them, but 90% of the time it's just the naked .bin file without any information …

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Re: Asrock 775Dual VSTA & Core4Dual thread

Posted on 2023-10-15, 00:08

by

by Danger Manfred

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a slight problem: my old 775Dual-VSTA did accept quad core CPUs (at least the Q6600 I tested), but after a few caps have gone bad, I switched to a "new" board, also 775Dual-VSTA, for some great AGP results. But this one doesn't seem to work with quad core CPUs? I suspect the old one might …

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Re: New Waveblaster card : Reptile Paradise - Yucatan FX

Posted on 2023-10-03, 08:25

by

by Danger Manfred

in Marvin \ Sound

in Marvin \ Sound

No secret parts, what you see is what you get. They were received from a reliable source, but are the last ones. If I'd ever make more Yucatan Fx, i would need to try find different suppliers indeed, not sure of the quality. Sorry to hear that, I loved the sound when I heard it in a comparison …

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Re: Found a curious Cirrus Logic GD5428 VLB or GD5426... can it be upgraded?

Posted on 2023-08-23, 14:35

by

by Danger Manfred

in Marvin \ Video

in Marvin \ Video

zero gain when you update. Don't do it. Well, that's not the answer I had hoped to hear, but the one I had to hear. Thank you! The GD542x series chips are too slow to display the contents of more than 1MB at 60 Hz. That's why the extra mode you gain (IIRC 1280x1024 at 256 colors and possibly some …

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Re: Found a curious Cirrus Logic GD5428 VLB or GD5426... can it be upgraded?

Posted on 2023-08-23, 07:43

by

by Danger Manfred

in Marvin \ Video

in Marvin \ Video

Thanks! So basically the card is an upgradeable GD5428 the way it has been assembled. It could be upgraded with a second MB of RAM and the chips should have at least 80ns speed. Now I don't need any interlaced resolutions, however, "regular" higher resolutions would be nice if the card would be able …

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Found a curious Cirrus Logic GD5428 VLB or GD5426... can it be upgraded?

Posted on 2023-08-22, 22:09

by

by Danger Manfred

in Marvin \ Video

in Marvin \ Video

Hello! I found this curious graphics card with the Cirrus Logic GD5428 chip on it, and 2x512k of 80ns VRAM. But on the PCB, it says "GD542X", the FCC ID says "GD5426", and what's more, there is an actual instruction on how to upgrade the card printed on the PCB, too. The 8 footprints can be …

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Re: SetMul - Multiplier control for VIA C3 / AMD K6+7+8 Mobile / Cyrix 5x86

Posted on 2023-08-11, 12:05

by

by Danger Manfred

in Release Announcements

in Release Announcements

I have confirmed this works on KTA133A -based Epox 8KTA3+ non-pro. Can now clock my Mobile XP (Barton) from 300 (3*100) to 1866 (14*133) in SETMUL. Surprisingly I still have to unlock higher multipliers, I thought they should already be unlocked on mobile CPUs. Oh well, that's not much of an issue. …

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Re: X800 Pro to X800 XT hardmod question: does ANYONE still remember this?

Posted on 2023-08-11, 12:00

by

by Danger Manfred

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Techpowerup still has guides for X800/X850. I have seen those, but that's only the BIOS mod part, most cards will also need the hardware mod, which a friend was able to point me to, so I'll share it here: http://www.controsensi.it/Mods/X800Pro_16p/Contents.htm I also saved the page in case it goes …

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X800 Pro to X800 XT hardmod question: does ANYONE still remember this?

Posted on 2023-08-11, 11:17

by

by Danger Manfred

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi! I want to hardmod R420 GPU based cards (X800 Pro, FireGL X3 256) to unlock them from 12 to 16 pipelines. This requires undoing a lasercut. From the descriptions I can find via google, this was relatively easy using a magnifying glass and conductive pen to just reconnect the bridge. The problem …

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Re: SetMul - Multiplier control for VIA C3 / AMD K6+7+8 Mobile / Cyrix 5x86

Posted on 2023-07-27, 07:33

by

by Danger Manfred

in Release Announcements

in Release Announcements

Just wanted to report that I got instafreezes on an Epox 8KTA3+ (Via KT133A) board when trying to set multipliers for my AMD Athlon XP-M 2500+ (AXMH2500QQ4C). I'm not sure I understand (or rather: I'm sure I don't) what the CPUMSR author is saying here under Chipset Requirements: https://web.archive …

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