Usb as a floppy

Posted on 2024-04-23, 11:37

by

by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have this thin client with non standard 64mb flash drive. I want to install ms-dos on it using usb and be able to boot flash hdd. Using rufus doesnt work because usb is seen as drive1 and flash hdd seen as drive2, so I cant set flash hdd active in fdisk. Using unetbootin also did not work. …

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Re: ISA vga card works only in 8-bit mode

Posted on 2024-04-11, 13:55

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by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I want it to work in 16bit mode for a more decent frame rate. Now it is very bad, around 11-12fps when used in either socket7 or socket3 systems. Take a closer look at the photos you posted of your card - there is literally no traces going to the 16-bit pins, and I imagine it will be the same on …

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Re: ISA vga card works only in 8-bit mode

Posted on 2024-04-08, 13:40

by

by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

8bit mode (assuming an XT), would get penalized both by the datapath being half that of the 16bit mode, AND from the bus speed being ~25% slower than the 6mhz rate of the 6mhz 16bit AT bus. Assuming 0 waitstates its even worse, XT 8 bit ISA had no NOWS pin on the slot so no 0 waitstates fastest …

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Re: ISA vga card works only in 8-bit mode

Posted on 2024-04-08, 07:45

by

by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well there clearly is a performance hit in 8bit mode. For example I had this slower et4000 isa vga in past, looking at results when used on socket 7 and pentium 200 (isa vga is bottleneck): 8bit mode: 12.8 fps 16bit mode: 22.4 fps Anyway. So nothing can be done for this hmc card then right. It is …

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Re: ISA vga card works only in 8-bit mode

Posted on 2024-04-07, 16:16

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by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Doesn't DOOM use only 8-bit writes in the first place? I think it would be better to use a real video memory benchmark to test this behavior. I am very sure that it uses 16bit writes. I have tested doom with many other cards, both in 16bit and 8bit isa modes, 8bit mode speed is considerably slower …

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ISA vga card works only in 8-bit mode

Posted on 2024-04-07, 06:38

by

by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi. I have this HMC isa vga card. Initially I thought that it is simply a slow card, like those oak ones. But then it seemed really slow. So I had a suspicion and tried it in 8bit mode, with 16bit pins covered with paper. And it yielded same slow result in doom benchmark. So I think it works in 8 …

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Easier Doom Benchmark - Doomfps

Posted on 2024-03-22, 20:13

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by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi ! One of my main interests in retro pc is doom benchmark. Sure this was done a lot, but no reason not to do it more. I made this minimalistic doom shareware benchmark pack which includes a simple but useful program that shows the result directly as frames per second. No more multiplying-dividing …

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Alternatives to file transfer in retro

Posted on 2024-03-05, 08:49

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by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi ! Are there any easy-to-make alternative file transfer methods that work under dos? Like for example: LPT-to-USB perhaps, or COM-to-USB. (to work with proper program or driver) To copy files/folders from/to USB flash drive to pc with no usb port. (LPT has 8 pins for easy control, and usb has 4 …

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Who has MSI P4 mobo (socket 478)

Posted on 2024-02-28, 11:08

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by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, Does anyone here has an MSI p4 mobo model: MS-6728 (865PE Neo2-P)? Would like to ask them something about it. Please let me know ! Thanks!

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Retro intel x86 cpu generations

Posted on 2024-02-12, 09:54

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by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi. I have been thinking about this for a few days. I was trying to group retro mainstream x86 intel cpus (and close clones), by generations. My current thinking is this: Generation1 (16bit): 8086, 80186, 286 Generation2 (early 32bit): 386, 486, p1 Generation3 (p6 architecture): ppro, p2, p3 {and if …

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Covington 266 or 300

Posted on 2024-02-10, 09:27

by

by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi. I have covington 300 slot1 cpu and ga-bx2000 mobo. Using them together, the pc sometimes starts as 266mhz and sometimes 300mhz (same bus 66.66mhz, no overclocking, I am not changing anything in bios or jumpers). Any idea whats going on? Isn't this cpu have locked ratio? How can I control the …

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Re: Different Windows eras

Posted on 2024-02-05, 12:59

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by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For me Windows 95/Vista/8/8.1 did not exist. 😂 95 era was still 3.1 era with Win32s. I had a 486 SX33 with 250MB hard drive then. So that was just no go. Then came the Windows 98SE era that lasted to golden XP era that lasted to the time they launched Windows 10. And then in that time I migrated my …

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Re: P4 underclock help

Posted on 2024-02-03, 22:50

by

by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks! Shorting BSELs worked. Those tiny little bastards, spent two hours.

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P4 underclock help

Posted on 2024-02-03, 19:12

by

by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello. I have p4-2.66 northwood (533mt/s bus speed, 512kb cache) And I have an msi motherboard that supports 400 to 800mt/s But it won't allow me to select 100mhz(400mt/s) for this cpu. I have another mobo, it allows, ok. When I use 400mt/s cpu on msi mobo, it works at 400mt/s. I have read somewhere …

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Best FX550 driver for XP?

Posted on 2024-02-03, 14:08

by

by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi. On internet I learned 45.23 is best driver for win98 builds and for old games. My aim with this system is to play doom3 and counter-strike source (old build), etc P4 2.66ghz and fx5500 256mb and 512mb ram with windows xp sp3 What driver is best suitable in this case? for highest fps results …

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Re: 8088 assembly help

Posted on 2024-01-25, 08:47

by

by PlaneVuki

in Milliways

in Milliways

Thanks you all! A few follw-up questions: 1) What improvements can be made if I was aimimg for V20, 286 or 386sx (cacheless motherboard)? (but still real-mode and no 32-bit code) 2) Does ram response times make difference to what code performs fastest?

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8088 assembly help

Posted on 2024-01-24, 10:25

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by PlaneVuki

in Milliways

in Milliways

Hi! My knowledge of assembly is weak-to-medium. This started as simple image downscale attempt, but I will ask in general. I am trying to copy data from one location to another, but neither source nor destination are consecutive. Like this: asm1.png My code is this: ************************ mov cx, …

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Re: DOSBOX scaling question

Posted on 2024-01-18, 20:55

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by PlaneVuki

in DOSBox General

in DOSBox General

No?

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Re: EGA together with mode13h

Posted on 2024-01-16, 15:40

by

by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

mkarcher, understood. (Thinking outside borland editor now) So we can load characters of height 8, 14 and 16. Anything else? Is it possible to load font with charac height 12 easy way? (I imagine hard way could be to redraw smaller characs within 16high ones, then limit drawn charac height to 12? …

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Re: EGA together with mode13h

Posted on 2024-01-16, 12:17

by

by PlaneVuki

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Update, I use this to set 80x28 mode: MOV AX,1111h MOV BX,0000h INT 10h But once I start IDE it's back to 80x25. Is there a more permanent method to set 80x28? (like mkarchers link did for 80x43)

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