Re: PS/2 to Microsoft Serialmouse Adapter Converter

Posted on 2017-05-26, 09:08

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

matze79 wrote: Feiopa, i was mistaken the KVM is a Digitus DC OC-12A. it runs without any problems. Interesting. All google search results come up with German sources for this product. Do you happen to know if there is a 4-port variant?

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eBay shipments from Asia taking 2+ months

Posted on 2017-05-25, 08:32

by

by feipoa

in Milliways

in Milliways

Has anyone been having issues with shipments from Asia, in particular, China, Taiwan, Singapore, and Hong Kong? As of about 1 year ago, my eBay shipments from these countries have been taking more than 2 months. I was wondering if it is just me (e.g. customs has flagged me for whatever reason), or …

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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Posted on 2017-05-25, 08:27

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

matze79 wrote: What ports do I probe on the KVM and what am I looking for? Data and Clock on PS/2 Port beetween KVM and RS232 Converter. I mean, what specifics in the signal am I looking for and how do we translate these signals into meaningful information in order to troubleshoot the lag issue?

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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Posted on 2017-05-21, 07:37

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does your KVM have audio and 4 ports? If so, could you confirm what the model is? I think I have a Cybex KVM w/out audio I can try. I only bought it (many years back) because it had built-in PS/2 to serial conversion. What ports do I probe on the KVM and what am I looking for?

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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Posted on 2017-05-20, 10:17

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I double checked using an optical mouse connected to the KVM and the converter still exhibits the same irritating lag. It is not useable unless you have a lot of patience and don't mind waiting 500 ms for each direction change. I checked the Raritan converter and the symptoms are the same, that is, …

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Re: Single-slot heatsink/fan replacement for graphics cards

Posted on 2017-05-20, 09:43

by

by feipoa

in Marvin \ Video

in Marvin \ Video

I haven't yet dived into the GPU fan project. I decided it was a good time to take a short break from the hobby to build my combination wood shed/garden shed that I spent about a year casually designing. I finally started building it about 3 weeks ago. I'm also having trouble with my neighbour who …

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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Posted on 2017-05-19, 10:50

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I found an hour to assemble and test matze79's protocal converter on a 386. With a trackball ps/2 mouse connected directly to the converter, it seems to function normally without noticeable lag at 1024x768 (Win3.11). But when I use the same mouse (Logitech MouseMan M-S38) on my KVM and through …

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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Posted on 2017-05-17, 23:21

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

matze79: The unit arrived yesterday! I won't have time to assemble and test it for some time though. I am in the middle of building a wood shed and garden shed. I am also having issues with the neighbours who have excavated down 1 metre at my fence line, leaving my property susceptible to landslides …

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Re: PS/2 to Microsoft Serialmouse Adapter Converter

Posted on 2017-05-16, 21:31

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

One of the issues with the raritan adapter is that the unit sticks out about around 2-3", that is, straight out pasted the serial port. It would have been nice if they had a swiven mount for the DB9 at 90 degrees, so that the unit would not protrude so far out the back of the case. What I think …

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Re: Another high-end 486 back in action (ASUS GX4 conversion success! Tons of pictures)

Posted on 2017-05-10, 01:34

by

by feipoa

in Marvin \ System Specs

in Marvin \ System Specs

I just bought these as well. This way I don't have to keep swapping cache amongst my boards. My main concern with reproduction units is their true response time. Are they really 10 ns? So far, I have not had issues either, aside from having to pickout the bad modules which were DOA.

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Re: Another high-end 486 back in action (ASUS GX4 conversion success! Tons of pictures)

Posted on 2017-05-09, 17:44

by

by feipoa

in Marvin \ System Specs

in Marvin \ System Specs

I'm betting that they are some kind of reproduction, and not by ISSI.

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Re: Another high-end 486 back in action (ASUS GX4 conversion success! Tons of pictures)

Posted on 2017-05-09, 09:26

by

by feipoa

in Marvin \ System Specs

in Marvin \ System Specs

I actually don't use floppy emulators in any builds. I really like to relive the times by waiting around for the floppy drive and living with the 1.38 MB size limit. $16.80 is a pretty nice price for the convenience of aliexpress. Six years ago, I had to go through a real hassle sourcing these cache …

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Re: Let's restore my 486 motherboard - AOpen Vi11

Posted on 2017-05-09, 09:19

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It might be prudent to confirm that none of the onboard capacitors are shorted, including tantalum, SMD, and electrolytic. I've had this happen sporatically with a tantalum cap. There's a thread on it somewhere. it might provide more insight if you have a, say, 20 K trimmer, and add it between your …

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Re: Another high-end 486 back in action (ASUS GX4 conversion success! Tons of pictures)

Posted on 2017-05-08, 03:12

by

by feipoa

in Marvin \ System Specs

in Marvin \ System Specs

That is one slick looking AT case! Love the case badge. I made-up a similar one, but had to print it in greyscale. Nice to hear that vendors on Aliexpress have the 128kx8 SRAM chips. How much did they cost with shipping? Going to add a floppy drive 3.5" floppy drive, or just the 5.25"? I like to add …

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Re: Pentium4 on steroids...yes but what to do with it?

Posted on 2017-05-07, 02:52

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by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Arandy wrote: Pentium4 on steroids...yes but what to do with it? I still have a P4 Prescott (3.4 GHz) I use for online activity. It is my garage computer that I use when working on the car and need to look up some torque specs, or some DIY youtube videos.

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Re: How do you feel about old hardware in modern cases?

Posted on 2017-05-05, 21:54

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I usually go for the case which looks the best for the intended build, but I always prefer period correct cases whenever possible. In a way, it helps me remember what hardware I have inside the case. I'm not at all keen on using black or silver cases for a period of hardware in which such case …

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Re: Let's restore my 486 motherboard - AOpen Vi11

Posted on 2017-05-05, 21:35

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Was the pinout of the old Dell AT PSU the same as standard PSUs? I know Dell swapped the pins around on the ATX PSUs, which angers everyone.

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Re: Let's restore my 486 motherboard - AOpen Vi11

Posted on 2017-05-05, 10:23

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I too am more inclined to think the issue resides with the motherboard and not the PSU, but I'm wrong 50% of the time. Did you check the PSU for bulging caps? I had to recap my original 386 PSU about 5 years ago.

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Re: Let's restore my 486 motherboard - AOpen Vi11

Posted on 2017-05-05, 09:40

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Did you evaluate the AT clock on the SiS board while running DOOM and the same hardware? Did you replace all the crystals which were near the battery leakage? My partially corroded cyrstals needed to be replaced. It is also possible that the AT connector on the motherboard isn't making all that firm …

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Re: Socket 4 motherboard and Pentium 1 66mhz

Posted on 2017-05-02, 22:29

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Weren't many socket 4 boards notoriously slow and buggy? If so, finding top quality boards may prove challenging.

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