Re: Need to identify these two old motherboards

Posted on 2019-12-21, 23:27

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

They're PALs. The "P" stands for Programmable. The chip alone won't help you without the code and getting that isn't straightforward. Read here : PALs are programmable logic devices. You program them with very basic logic functions chains of AND, OR, XOR etc. etc. written in a high level language. …

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Re: PC Recycling/Dunps in NL

Posted on 2019-12-21, 23:14

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by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

15 years ago, NL was full of places you are looking for. I can't comment on situation in Arnhem, but back then thrift shops Eindeloos/Piekfijn in Rotterdam had a corner full of PCBs in every location, Roetersdok in Amsterdam not only had a whole room dedicated to computer stuff but a complete …

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Re: Motherboard Jumper Setup Help

Posted on 2019-12-19, 22:50

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by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

486ODPR66 (P4T) and PODP66 (P24T) are totally different beasts, the one basically a regular DX2-66 with a heatsink and different name, the other a Pentium with onboard voltage regulator and only 32b of the 64b bus connected. Also the ODPR66 has WT cache and the PODP66 has WB cache. So a whole host …

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Re: using external monitor on iMac?

Posted on 2019-12-19, 13:21

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by dionb

in Marvin \ Video

in Marvin \ Video

I've definitely run iMac G3s on non-Apple USB keyboards and mice. Generally they work fine, just some keys have different functions. I recently picked up an iMac G4 800 for free. It booted exactly onece, then failed to boot. Dead PRAM battery (Apple genius: avoid having a 5V standy power line by …

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Re: How do you find retro Hardware free?

Posted on 2019-12-19, 07:13

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by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Agreed that e-waste isn't much use for the really old stuff. Check classified ads and look for the "my father/uncle/brother died and had all this junk in his attic/garage, please come pick it up for free" ads. If you see that little bit of beige on the obligatory fuzzy photograph, you can take the …

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Re: Motherboard Jumper Setup Help

Posted on 2019-12-18, 20:08

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by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Neither, you want P4T. And S is low-power: http://www.x86-guide.net/en/cpu/Intel-486.html Intel Overdrive 486DX2-66 (PGA168) P4T 66 MHz 33 MHz 8 KB/-/- ??? Intel Overdrive 486DX2-66 (PGA169) P4T 66 MHz […] Show full quote Intel Overdrive 486DX2-66 (PGA168) P4T 66 MHz 33 MHz 8 KB/-/- ??? Intel …

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Re: Bought these (retro) hardware today

Posted on 2019-12-17, 00:13

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by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's what I get in 90% of such mystery boxes :lol: Maybe it's just my luck.. There was the one time I opened up such a box to find a Tomato Celeron system with a Voodoo 3 and AWE64 Gold though, so you never know. I hope you get whatever awesome hardware you hope it has though. I hope it's an i7 …

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Re: 430TX (and other chipsets) and 75MHz (and 83MHz) FSB

Posted on 2019-12-16, 23:38

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by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

appiah4 wrote: What I have at hand is also a MB560TG. Well, they don't come faster than that. Hope it's stable though...

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

Posted on 2019-12-16, 22:58

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by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

After a few weeks with no time to even look at my vintage hardware, I managed to get a little bit in this evening. Quick benchmark of my Alaris Leopard (IBM486SLC2-66) board, specifically VGA performance of VLB vs ISA. This CPU only has a 16b external bus, so wanted to see how VLB performed. 3DMark2 …

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Re: Need to identify these two old motherboards

Posted on 2019-12-16, 20:30

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Conflicts all over the place... that awful CMD IDE controller could be to blame. Disable if at all possible. But this mainly looks like default settings of the board are the problem, so sorting out the RTC would definitely be the next step.

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Re: Need to identify these two old motherboards

Posted on 2019-12-16, 19:33

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

[...] Well, I removed the VGA card and now I can hear a short beep every 30 seconds like a loop! Now what to do? Try to rework the RTC? and what was wrong with the VGA cards? http://www.ardent-tool.com/misc/rework_dallas_rtc.html What VGA card? Sounds like either board or monitor didn't like the …

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Re: 430TX (and other chipsets) and 75MHz (and 83MHz) FSB

Posted on 2019-12-16, 15:19

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This will be for a fast DOS PC, so no 3D acceleration will be used. It will be running Quake in software mode though. CPU is an mII-PR266GP (2x75MHz). So am I better off going with a 430TX board or an Aladdin IV+ for this build? If you can find a good board with it, the Aladdin IV+ is definitely …

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Re: Is it worth upgrading a Dell XPS D333 to a Celeron 533?

Posted on 2019-12-16, 15:12

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

appiah4 wrote: Chipset is a 440LX so 66MHz is as high as FSB will go. Then - assuming no Coppermine BIOS and voltage support - C533 is as high as this system will go. Still not entirely sure it's worth the effort to turn a flagship high-end early 1998 system into a low-end 2000 system...

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Re: Is it worth upgrading a Dell XPS D333 to a Celeron 533?

Posted on 2019-12-16, 14:48

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Benefit in which application? Celeron Mendocino is almost as fast, clock-for-clock as Deschutes/Katmai P2/P3, so yes, upgrading to 533MHz would give you a nice boost. The high multiplier (and so relatively slower memory access) will prevent it from actually reaching 533/333 of the speed, but 1.25x …

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Re: Commodore PC keyboard.

Posted on 2019-12-16, 13:32

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by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I know that the Commodore keyboard with built-in speakers was a regular AT keyboard. As for others, probably the same, but - lacking a model number - a pic of the board might help.

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Re: Need to identify these two old motherboards

Posted on 2019-12-16, 12:42

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

[...] Are you sure? what if I remove it from the socket? I have two debugger cards but could never get them to work properly. I will try again later. Nothing but a dead blank screen... Behaviour of motherboards with RTC when the RTC is dead can be all over the place. Generally, they just behaves …

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Re: Need to identify these two old motherboards

Posted on 2019-12-15, 14:00

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The OPTi Viper board is a beauty. It's an Acer AN5C, which I found by googling those numbers at the top right of the board: 48.58201.002 94151-2x Not sure how much that's going to help you as it's not in TH'99 or Elvhb or any of the other usual places for manuals. There's a thread about it (from …

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Re: Would Super Socket 7 be enough for Win98 Games?

Posted on 2019-12-14, 18:11

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

P5A rev <= 1.04 runs them fine unmodified. It's only the later revisions with G-stepping chipset that need the workaround. This is a unique Asus issue, other boards with G-stepping Aladdin V don't have the same problems.

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Re: Bought these (retro) hardware today

Posted on 2019-12-13, 18:30

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by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I paid $9.99 for my G4/800 and booted up without issues. Replaced the PRAM battery a while back and I also did a fresh install of Mac OS X Tiger along with updates and a Wireless N USB adapter that works with the system a year ago. SuperDrive works as well, so it'll be used for making DVDs from my …

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Re: Compaq presario cds 660

Posted on 2019-12-13, 16:41

by

by dionb

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

[...] So I guess the first questions I have besides what anyone knows about this machine, would be: 1. Can/should I upgrade the cpu to a dx over the sx? Do you intend to run Quake? Or Falcon 3.0? Or do CAD/CAM or heavy spreadsheet work? If so, you want the FPU in the DX, if not, it won't change …

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