Help Restore my Zenith z-100 computer

Posted on 2020-06-24, 22:32

by

by Intel486dx33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It a Zenith z100 desktop computer from 1982 But the computer case is the same as the z150 I saw a service manual with the z100 and z150 using the same computer case so this must be it. Z100 Specs: Design The Zenith Data Systems Z-100 is a pre-assembled version of the Heathkit H100 electronic kit.[2] …

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Re: Building an 80286 25Mhz system?

Posted on 2020-06-24, 19:33

by

by Intel486dx33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am going to do the same but with an AMD 386sx-33 motherboard. By disabling CPU and Motherboard cache I should be able to slow it dow to a 286-10mhz at least.

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Re: Apple is getting off Intel CPU’s ?

Posted on 2020-06-24, 14:32

by

by Intel486dx33

in Milliways

in Milliways

The transition from PPC to Intel to “Apple Silicon”.

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COVID-19

Posted on 2020-06-24, 13:57

by

by Intel486dx33

in Milliways

in Milliways

Now the Europeans don’t want American visitors because they believe the infected are to great in America’s.

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Re: Apple is getting off Intel CPU’s ?

Posted on 2020-06-23, 17:59

by

by Intel486dx33

in Milliways

in Milliways

Not to mention that Apple never promised that an Apple device bought ten years ago will still run the newest macOS indefinitely. You could even argue that even back then it was obvious that they will deprecate old devices. No computer device manufacturer promises you that it will run on anything …

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Computer projects you would have liked to have been a part of ?

Posted on 2020-06-23, 14:54

by

by Intel486dx33

in Milliways

in Milliways

I would like to hear about old or retro computer projects you would to have been a part of. For example: Maybe you would have liked to have worked in an old Data center ? Super computer project ? Atari computer lab Sierra computer lab Sony play station development Sega computer network Computer game …

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Re: Apple is getting off Intel CPU’s ?

Posted on 2020-06-23, 13:13

by

by Intel486dx33

in Milliways

in Milliways

I am sure Intel has new chips coming out soon to.

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Re: NT3.51 Just turned 25 Today!

Posted on 2020-06-23, 12:31

by

by Intel486dx33

in Marvin \ System Specs

in Marvin \ System Specs

You have heard of marketing hype I would imagine? Well, it wasn’t entirely global but it encompassed many nations and continents. Do you perhaps think it may have been done in the back of what we call the internet these days? You know like the www is? No, It definitely was a multi national computer …

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Re: Error: Invalid \ No keyboard code received ?

Posted on 2020-06-23, 03:04

by

by Intel486dx33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You can still find XT/AT switchable keyboards for cheap -- they come up every once in a while. I just set an Ebay search alert a few months back, and within ~30 days or so, I snagged a SIIG Suntouch 101 for around $30 -- it has Alps switches at that. I also built an AT/PS2-->XT converter for about …

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Re: Error: Invalid \ No keyboard code received ?

Posted on 2020-06-22, 21:16

by

by Intel486dx33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

+++ ERROR: Invalid/No keyboard code received! +++ Normally this message is caused by the keyboard being unplugged. If the keyboard is plugged in, the problem may be in the keyboard or keyboard cable. Replace the keyboard and/or keyboard cable. I think I need a compatible XT keyboard. Can anyone …

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Error: Invalid \ No keyboard code received ?

Posted on 2020-06-22, 20:30

by

by Intel486dx33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am trying to fire up my Zenith 100 after many years of storage. It boots to this error code. “ Error: Invalid \ No keyboard code received ”. I hear 4 faint beeps. I do not have the original keyboard. I think it is an IBM XT clone. It has an AMD 8088 CPU. How can I get this to boot ? Manual: …

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

Posted on 2020-06-22, 19:42

by

by Intel486dx33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ph@nt0m-X wrote on 2020-06-22, 17:56: I did retrobright on my 486 PC. before.jpg after.jpg What mixing percentage and process did you use. It’s summer and very hot in California right now and there are some cases I would like to restore.

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Re: I recently bought an IBM APTIVA, and i need some tips...

Posted on 2020-06-22, 18:58

by

by Intel486dx33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This one should work to. 586 Pentium CPU Crystal Cooler 53x53x25.3mm Fan w/ Heat Sink Socket CF-002

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Re: Apple is getting off Intel CPU’s ?

Posted on 2020-06-22, 18:49

by

by Intel486dx33

in Milliways

in Milliways

Awwwww..... This was just a teaser.... These new Macs will not be available for a couple of years.

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Re: I recently bought an IBM APTIVA, and i need some tips...

Posted on 2020-06-22, 18:19

by

by Intel486dx33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you so much for the info! Just bought a L2 module on ebay. Now i'm thinking of buying a new pentium 200mhz processor too, and upgrade my 133... My problem is: will my heatsink work with a 200mhz? It doesn't have a fan... does the 200mhz need a specific heatsink with a fan? If it does, i'm not …

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Re: NT3.51 Just turned 25 Today!

Posted on 2020-06-22, 18:13

by

by Intel486dx33

in Marvin \ System Specs

in Marvin \ System Specs

Caluser2000 wrote on 2020-06-22, 17:31: Intel486dx33 wrote on 2020-06-22, 11:39: Back in 1990’s HP was able to create a Global computer network using WinNT 3.5.1 You have heard of marketing hype I would imagine? Well, it wasn’t entirely global but it encompassed many nations and continents.

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Re: Apple is getting off Intel CPU’s ?

Posted on 2020-06-22, 18:07

by

by Intel486dx33

in Milliways

in Milliways

I am Airplaying it NOW to my 4k 65-inch TV in Surround Sound 7.1 from my MacBook Pro. Works great and sounds Awesome !

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Re: VL/EISA SMP Pentium (turbocharged)

Posted on 2020-06-22, 16:20

by

by Intel486dx33

in Marvin \ System Specs

in Marvin \ System Specs

Check out theses nice Blue heatsinks. maybe you could make some brackets to screw into original heatsinks and then attach fans.

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Re: I recently bought an IBM APTIVA, and i need some tips...

Posted on 2020-06-22, 16:11

by

by Intel486dx33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks again for all that useful info! The first user posted this about the L2 cache module: "(the manual says that it must have 160 connectors, 64 bits, and 15ns)" I just can't find that specific information on my manual (no info about number of connectors, etc), just the part number. Thanks again …

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Re: I recently bought an IBM APTIVA, and i need some tips...

Posted on 2020-06-22, 13:51

by

by Intel486dx33

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for that! I already had taken a look at the manual but i still can't find the specific info about the L2 cache the other user mentioned. As long as you have 256kb or more you should be okay. Most high end Super Socket 7 motherboards came with 512b of motherboard cache. Thanks again for all …

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