Re: Why does a 286 processor need 4MB of memory?

Posted on 2024-03-25, 12:21

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Windows 3.x could run some protected mode games with 2MB of physical RAM when 4MB was required in DOS. Unfortunately max swap file size was dependent on physical memory size. That’s not fully true iirc - Dos4gw games also needed 4mb ram even under win31 command with swap. I tested it various times. …

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Re: Kixs's 286 to the Max Too

Posted on 2024-03-25, 09:30

by

by Marco

in Marvin \ System Specs

in Marvin \ System Specs

1. agree. There were a lot of games that could access / use more ext. / exp. memory 2. dune2 used xms only iirc 3. the question is really if there was any improvement towards eG 2mb Ram. I don’t remember. The only benefit w/ 4mb I remember was the better possibility to use smartdrv. 4. maybe I’m …

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Re: Kixs's 286 to the Max Too

Posted on 2024-03-25, 08:00

by

by Marco

in Marvin \ System Specs

in Marvin \ System Specs

Focusing on easily i agree of course. Umb & EMS etc are much easier. With regards to 4mb dos gaming I am adhoc not aware of Games using this except for Dos4gw which anyway ran too slow.

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Re: IRQ9 on Graphics card? Yes or no?

Posted on 2024-03-24, 07:19

by

by Marco

in Marvin \ Video

in Marvin \ Video

Thanks for the answer. Strange that even a gd5434 from 95/96 had this implemented

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Re: Kixs's 286 to the Max Too

Posted on 2024-03-23, 12:47

by

by Marco

in Marvin \ System Specs

in Marvin \ System Specs

After all this I make my personal conclusion: - 386sx is in real usable scenarios just a higher clocked variant of the 286 (which was as mainstream mainly sold up to 16Mhz) - the 32bit advantages of the 386sx is mainly on paper: no one really productively ran w95 on it, advantages of extended win31 …

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Re: Adaptec AHA-1542CP and Floppy

Posted on 2024-03-22, 11:23

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks guys!

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Re: Adaptec AHA-1542CP and Floppy

Posted on 2024-03-22, 10:13

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a question. No two: 1. is the floppy connector of the 154x only for scsi floppy drives? 2. is there an advantage to use the connector of the scsi instead of the std multi i/o connector?

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Re: IRQ9 on Graphics card? Yes or no?

Posted on 2024-03-21, 22:09

by

by Marco

in Marvin \ Video

in Marvin \ Video

Hi all, I just read mkarcher‘s last post. Accelerator is a noun that can be widely interpreted. Do you think the „coprocessor“ comparison also applies on high End 2D GDI accelator (ISA) cards as the GD5434 with heavy drawing offloading as well? Meaning should you also active irq here to get best GDI …

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Re: Kixs's 286 to the Max Too

Posted on 2024-03-21, 21:03

by

by Marco

in Marvin \ System Specs

in Marvin \ System Specs

Thanks to kixs's help I can now provide results with same clockgen from a 386SX perspective. Very disappointing and I'd really be keen to understand why a 286 is clockwise faster than the 386... :) Norton System Information: 23.0 (Version 8) Landmark System Speed Test 6.00: CPU: 39.32 | FPU: 82,13 …

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Re: Tool to adjust the memory clock on Cirrus Logic CL-GD542x graphics cards

Posted on 2024-03-21, 20:35

by

by Marco

in Marvin \ Video

in Marvin \ Video

Hi just another question: I changed my CL card to a newer CL card and now mclk informed me about Ras timing= extended (slower). On the previous card it was normal (faster). Is there any way to change that or is it hardware-fixed? Thank you

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Re: 58MHZ oscillator needed

Posted on 2024-03-17, 19:09

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks to all. I was indeed at first searching for it on ali as I also received my 55mhz part there. What I learned now is it’s worth to look via vpn as well. I couldn’t find any other reseller there delivering to Germany but I will do it then via a friend in BE to / via BE. Thank you all!!

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Re: 58MHZ oscillator needed

Posted on 2024-03-17, 16:55

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What article is this? It’s unfortunately „not available in / from your country“ ahhh. I don’t even see the article. Sorry :/ Edit. Found it via google search 4P dip14 58.320mhz Very nice !!! But still not available from DE/GER Edit2: personal Note: each damn item can be ordered but this part! Going …

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Re: 58MHZ oscillator needed

Posted on 2024-03-17, 16:35

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Horun wrote on 2024-03-17, 15:54: Digikey has 59Mhz thru-hole "oscillator" but no 58Mhz nevermind Could you send the link. Couldn’t find it just now

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Re: 58MHZ oscillator needed

Posted on 2024-03-17, 16:30

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Great idea. Thanks. Unfortunately shop cannot checkout / accept payments. I found a even better alternative here with fine adjustable and programmable frequencies. Unfortunately the link to the product won’t work anymore. I asked at the shop. https://www.elexs.de/clock1.htm

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58MHZ oscillator needed

Posted on 2024-03-17, 15:39

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Dear member, I’d like to test a 58MHz osci in my old 386er board. But as you might have guessed I’m not able to find such part on the market. I found 55 and 60 so far. Any idea where to get such piece or how to achieve a 58MHz frequency signal? Thank you.

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Re: Benchmarks DOS vs WfW3.11 vs Win95B

Posted on 2024-03-13, 22:20

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I also now tried with The microhouse driver. It will work. With some limitations: - strangely only 32bit disk access for my large hdd. My 408mb hdd will be set to 16BIT - the file access will be limited to 16BIT now for all drives. Before it was 32bit for all drives. What does this mean for the …

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Re: 32 Bit Disk Access drivers on a 2 GB Windows 3.1 Hard disk.

Posted on 2024-03-13, 22:17

by

by Marco

in Marvin \ Software

in Marvin \ Software

So what I did is installing the xt ide bios and rerun the tests. The microhouse driver will work. With some limitations: - strangely only 32bit disk access for my large hdd. My 408mb hdd will be set to 16BIT - the file access will be limited to 16BIT now for all drives. Before it was 32bit for all …

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Re: Benchmarks DOS vs WfW3.11 vs Win95B

Posted on 2024-03-13, 19:01

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

interesting OS/2 link. my remarks here: File transfer results: - these are really a ?? to me. I cant see a scheme here. - all OSs run on same FAT16. - Win95 shows no compatibility issues - WfW3.11 allowed 32bit file access but ony BIOS access for drive access. Thats maybe due to my XT-IDE Bios. Any …

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Benchmarks DOS vs WfW3.11 vs Win95B

Posted on 2024-03-13, 13:41

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi all, I just let some benchmarks ran on my retroPC. Some interesting numbers as I think although I have the feeling that the results do sometimes differ based on the n° of benchmark-passes. Base system: - 386SX/27,5 - 13,75MHz ISA - GD5428 Video - 8MB RAM - CF and 7200/16MB HDD Have fun

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Re: EtherDFS on OpenWRT. Doable?

Posted on 2024-03-06, 22:17

by

by Marco

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks. I will definitely search for these hints This seems to be the way then: https://openwrt.org/docs/guide-developer/tool … in/crosscompile

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