Re: Overclocking the Cyrix/IBM 6x86MX PR200

Posted on 2019-12-21, 09:10

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cyrix Socket 7 CPUs are interesting to mess around for "academic" purposes. But it's not something you would want to use overclocked in a daily retro PC for games. It is kinda an academic exercise. I also want to do it in a controller way where I don't leave the thing unattended for a long time, …

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Re: Overclocking the Cyrix/IBM 6x86MX PR200

Posted on 2019-12-20, 18:23

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What would be a safe / responsible way to continue ? Not to overclock it at all. What's the point anyway? If you want more speed, install a faster CPU instead of running that one out of specs and risking to damage it. It’s just a bit of fun. As this is a vintage forum and overclocking has some …

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Re: Overclocking the Cyrix/IBM 6x86MX PR200

Posted on 2019-12-20, 18:19

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Cyrix chips didn't have a lot of margin in them, clock-speed wise. IBM had a reputation for leaving a little more margin in theirs. I was surprised to get it up to 187 and consider that a win. Would like to check the temps somehow. Will see if I can add a probe somewhere. Dunno if there are certain …

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Overclocking the Cyrix/IBM 6x86MX PR200

Posted on 2019-12-20, 15:24

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I have an IBM branded Cyrix 6x86MX PR200 (75Mhz x 2) running at 2.9V on a Zida 5SVA socket 7 mainboard. I know that these Cyrix branded processors are not a very popular to overclock but I decided to give it a try and noticed I could run it "stable" at 66 x 2.5 = 165Mhz without changing the …

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Re: Mysterious Peacock CTM 9532 SMP server

Posted on 2019-12-16, 12:34

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Definitely needs a terminal. Keep in mind RS232 is not the only kind of standard for hooking up terminals. I was expecting to see "something" on the serial port, but nothing came up (tried different baud rates / flow controls / settings). Even if it cannot interpret the data, or a specific terminal …

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Re: Mysterious Peacock CTM 9532 SMP server

Posted on 2019-12-16, 12:31

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

eisapc wrote: If you can post pictures of inside and back, identification may be easier. eisapc I added a dropbox link in the original post with some higher res pictures (uploading a large amount of pictures here is not that convenient).

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Mysterious Peacock CTM 9532 SMP server

Posted on 2019-12-15, 09:34

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I'm trying to figure out what this Peacock CTM 9532 SMP is all about, and how I can somehow interact with it. It comes with a tapestreamer and 2 1GB scsi hard drives. Someone was already kind enough to find this info on the server : http://www.cc-computerarchiv.de/CC-Archiv/edv-alt/ge-itos/ge- …

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Re: Old Kalok KL-343 hard drive BIOS config

Posted on 2019-12-12, 16:44

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

About the bad sectors: Of course a HDD can be registered in the BIOS with a lower CHS geometry. So if the Kalok is 676 / 4 /31 you can use any geometry where each value is less or equal the maximum given geometry. Of course one looses some capacity in accessing the drive. That's what I tried to do …

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Old Kalok KL-343 hard drive BIOS config

Posted on 2019-12-12, 10:16

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've stumbled upon 2 old identical 286 PCs. Identical except for the hard drives. One has a Connor CP3000 42MB hard drive and the other a Kalok KL-343 43MB hard drive. https://stason.org/TULARC/pc/hard-drives-hdd/conner/CP-3000-42MB-3-5-SL-IDE-AT.html CHS : 1045 / 2 / 40 CHS (translated) : 980 / 5 / …

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PC hard drive backup / mirror

Posted on 2019-10-26, 14:32

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I have a couple of old Compaq machines where the compaq bios / setup program is located on a hidden partition on the hard drive. What is the best way to create an exact "backup" or "mirror" of this harddrive, including not only the data but also the hidden partitions. And how could I restore …

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Re: VTech / Laser computers history

Posted on 2019-10-24, 03:59

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does anyone know a little bit about the history of their IBM PC compatible line-up. The Wikipedia article mentions "VTech then branched out into personal computers, including a series of IBM compatible PCs beginning in 1983, followed by Apple II compatible computers, beginning in 1985, including a …

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Re: VTech / Laser computers history

Posted on 2019-10-22, 08:24

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The IBM PC and Apple II compatibles seem to be very nice ... the other ones I hardly knew about. Never occurred to me that these computers would be linked to VTech, known to me only by my daughters toys 😀 The PCs were very popular in holland. Lucky to have picked one up ... pretty difficult to find …

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VTech / Laser computers history

Posted on 2019-10-21, 20:30

by

by RetroSpector78

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I've got this Laser 386/3 desktop PC (https://retrospector78.wordpress.com/2019/10/02/laser-386-pc/) , and I know that Laser was a very popular computer brand in the Netherlands (Having close to 10% marketshare in 1997 with huge advertisements budgets / adds on television). I did not know that …

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Re: Vogons Video Announcement Thread

Posted on 2019-10-21, 17:19

by

by RetroSpector78

in Milliways

in Milliways

Ever wondered what happend when you insert an XT-IDE card the wrong way in your ISA slot ? https://youtu.be/Rc-q8rB-fwI

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Re: Vogons Video Announcement Thread

Posted on 2019-10-11, 21:52

by

by RetroSpector78

in Milliways

in Milliways

Tandy 1000 TL Part 3 : Hardware overview https://youtu.be/DArCTy87Ri0 Time to say goodbye to the Tandy for now and move on to some other projects.

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Re: Vogons Video Announcement Thread

Posted on 2019-10-07, 06:59

by

by RetroSpector78

in Milliways

in Milliways

Playing some classic dos games on my Tandy 1000 TL : https://www.youtube.com/watch?v=VLHuw6Qz3xE

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Re: Windows 3.11 / MS-DOS filesharing

Posted on 2019-09-17, 08:21

by

by RetroSpector78

in Marvin \ Software

in Marvin \ Software

maxtherabbit wrote: I seem to remember IPX/SPX in early versions of windows not working unless you specified a (matching) network ID to all clients in the protocol settings Thanks for the tip ... but I'm not seeing a network ID option in the ipx/spx settings. (I do see frametype, max connections, …

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Re: Windows 3.11 / MS-DOS filesharing

Posted on 2019-09-10, 21:08

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by RetroSpector78

in Marvin \ Software

in Marvin \ Software

Can the WFW PC access the shares on the other PC's I've found It's not uncommon for shares to work 1 way but not the other for whatever reason. maybe, and its a long shot, try installing WFW selecting IPX and removing NetBEUI during the setup screen, maybe windows is still trying to fall back on …

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Re: Windows 3.11 / MS-DOS filesharing

Posted on 2019-09-10, 20:58

by

by RetroSpector78

in Marvin \ Software

in Marvin \ Software

Caluser2000 wrote: Any particular reason you want IPX/SPX? Just use NetBios. It's a lot leaner. No TCP/IP required. No particular reason besides curiosity. File and printer sharing should in theory work over IPX/SPX. It does between ms-dos and win98se. Don't get it why it doesn't in WfW 3.11

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Windows 3.11 / MS-DOS filesharing

Posted on 2019-09-09, 16:33

by

by RetroSpector78

in Marvin \ Software

in Marvin \ Software

I've setup a small network of 3 retro computers msdos with MS Network Client 3.0 windows for workgroups 3.11 windows 98 SE The goal is to be able to share files. I've setup all 3 computers to use NetBEUI, and I can share folders on win3.11 / win98se, and have the msdos machine consume them (using …

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