Re: My old K6 board died - possible bios problem :(

Posted on 2021-06-20, 16:36

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Oops... You are right. Pinout is totally different. Shame on me... They "may" work on your board with oposite adapter (to this Willem one). I don't know about bootblock keyboard shortcuts :( I only remember that for some older Toshiba laptops there was LPT/Parallel plug for invoking flashing from …

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Re: My old K6 board died - possible bios problem :(

Posted on 2021-06-20, 11:04

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm afraid that choosing another similiar memory type may not work in this case :( You may try however to buy another similiar supported memory like AM29F002 or M29F002 or AT49F002 with "top" bootblock location and try to use it. What else comes to my mind. If bootsector isn't broken, you may …

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Re: Cheaper CGA (EGA RGB) to VGA converters - Are they any good?

Posted on 2021-06-19, 06:45

by

by zyga64

in Marvin \ Video

in Marvin \ Video

If you add necroware's MCE adapter https://github.com/necroware/mce-adapter it should work quite well ! There is also very interesting attempt (using Rapberry Pi) here MDA/CGA/EGA/VGA to HDMI using Raspberry Pi Zero

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Re: My old K6 board died - possible bios problem :(

Posted on 2021-06-17, 08:20

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This Intel flash is somewhat specific (12V programming voltage, bootblock position and size etc.). In this crossreference i.e. there is no direct replacements from SST. You mentioned that you have user manual for this board. Please check if you can use another flash instead. I remember that on …

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Re: My old K6 board died - possible bios problem :(

Posted on 2021-06-15, 07:50

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Probaby you can use any generic 2MBit Flash (with 256k x 8bit organization). Programer of choice is ofcourse TL866 😀 Do you have another graphics card (ISA, PCI) and good known PSU to check before ? ISA/PCI POST card is also nice-to-have for diagnosing.

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Re: The best Motherboard for a Pentium II MMX.

Posted on 2021-06-15, 06:19

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I would choose one with Intel BX chipset. You won't regret choosing it, unless you love to play with drivers, BIOS and chipset tunning :) They are just solid - rock stable and top performance. Build and work/play. Someone may say they're boring - not much to improve. For CPU - faster is better. P II …

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Re: I have a 486SX to play some games and I'm lost about drivers and other things

Posted on 2021-06-02, 11:48

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

ZIP memory chips should be 20 pin, that's for sure. Organization should be 256k x 4bit. Timing ? Chips onboard are 45ns. It is hard to find ZIP memory "that fast " Cirrus Logic mentions 70ns in specification (from here ) for 45MHz memory clock. I think we can asume 60ns for 50MHz MCLK (which is max …

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Re: I have a 486SX to play some games and I'm lost about drivers and other things

Posted on 2021-06-02, 09:26

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the links, I'll take a look. About the cache memory, the book says this: CACHE MEMORY 128 KB of second-level cache memory may be installed (except in the 486/25VL). All four chips must be installed. My model is 486/25VL, so it seems that the missing chips could be the ones needed for …

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Re: I have a 486SX to play some games and I'm lost about drivers and other things

Posted on 2021-06-02, 07:26

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Now you have 512kB graphics memory: 4 chips in organization of 4 x 256bit v53c103 . I suppose you have to buy 4 ZIP chips of the same organization: ebay search You are right regarding cache sockets. For cache memory just buy 32kBx8 chips just like on the picture I linked before , but... I'm not sure …

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Re: I have a 486SX to play some games and I'm lost about drivers and other things

Posted on 2021-06-02, 06:14

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

According to your motherboard chipset datasheet VL82c480 your system is ISA only :( But CL-GD5428 is fast ISA graphics chipset and you can probably double its memory throughput supplying ZIP memory to empty sockets (between CPU and graphics chip). To even more boost system performance you can solder …

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Re: Replacement capacitor recommendation

Posted on 2021-06-02, 05:45

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Check your BIOS chip (2MBit vs 4MBit). Maybe you can flash bigger BIOS on it ? If not, you can always buy chip with bigger capacity and try hotflash (with Uniflash - tried that many times with success).

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Re: ATI Rage XL 8MB vs S3 Virge 4MB

Posted on 2021-05-26, 06:52

by

by zyga64

in Marvin \ Video

in Marvin \ Video

If you only consider DOS and Windows 3.11 then Cirrus Logic you have is all you need. It is one of the faster and most compatible DOS graphics cards (it's better than ATI ones according to this table https://gona.mactar.hu/DOS_TESTS/ . Moreover, almost all DOS games uses GFX card as simple …

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Re: ATI Rage XL 8MB vs S3 Virge 4MB

Posted on 2021-05-25, 13:10

by

by zyga64

in Marvin \ Video

in Marvin \ Video

matti157 wrote on 2021-05-25, 12:24: It is worth buying a ATI RAGE II + DVD or ATI 3D RAGE PRO PCI? If I had to choose between those two - definitely ATI Rage Pro! According to this site https://gona.mactar.hu/ATI3DCIF/ it is 3x faster than ATI Rage II+DVD (in Tomb Raider).

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Re: Stupid Windows for Workgroups 3.11

Posted on 2021-05-25, 06:53

by

by zyga64

in Marvin \ Software

in Marvin \ Software

Making Windows 3.11 work in DOS7.10 (patches inside)

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Re: Replacement capacitor recommendation

Posted on 2021-05-23, 12:34

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I discovered that this PC Chips M930LMR has unofficial support for 533 MHz bus CPUs. In the CMOS settings the CPU PnP Setup menu allows you to set the memory and bus speed, but the choices are limited to 100/100, 100/133, 100/166, 133/100, and 133/133. I really wish it had a 133/166 setting, …

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Re: HP Vectra ES/12 12Mhz 286

Posted on 2021-05-19, 13:09

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The above linked Lo-tech board will not work for you. Its for a XT and will not provide RAM above 1MB. You need a 16-bit RAM card like the Intel Above Board or the AST Rampge 286. But there are many others. Of course you board will accept a IDE-controller but should remove the MFM-controller if you …

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Re: HP Vectra ES/12 12Mhz 286

Posted on 2021-05-19, 07:39

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You can probably use this expansion https://www.lo-tech.co.uk/wiki/Lo-tech_1MB_RAM_Board to provide upper memory (between 640KB and 1MB). Drivers and other TSRs could be loaded there (mouse driver, etc.).

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Re: Will my 440BX motherboard support Pentium III 600MHz CPU?

Posted on 2021-05-19, 06:32

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello, I have this motherboard, HOT-661V31, and wondering if I can use a Pentium III 600E CPU on this motherboard. The manual says it only supports Pentium II and Celeron CPUs but since the chipset is 440BX, I may have a change to use a PIII CPU on it. The problem is that the manual jumper setting …

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Re: SB Live! & AWE32 - same PC, same speakers

Posted on 2021-05-12, 18:24

by

by zyga64

in Marvin \ Sound

in Marvin \ Sound

Greetings, My Ultimate Win98SE box has a Sound Blaster Live! installed for Windows games, and an AWE32 installed (disabled under Windows) for MS-DOS games. What is the best option for using one set of speakers with both cards? If only one card is outputting sound at a time, would a 3.5mm 2x male / …

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Re: WinChip appreciation thread

Posted on 2021-05-10, 09:53

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

mwdmeyer wrote on 2021-05-10, 09:04: Wow very nice. Did you notice it faster in anything you did or was the P133 just all around faster? Did you go back to the P133? Although the raw numbers spoke for the Pentium, the overall smoothness in Windows 98 was better on Winchip. So Winchip stayed on this …

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