Re: i865PE motherboards and 400 FSB / 533 FSB

Posted on 2021-04-24, 20:24

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think it depends on the specific implementation. Asrock 775i65G (which I have) for example allows you to set FSB from 100 to 266MHz (x4 QUAD pumped BUS - so 400 to 1066), and multiplier from x6 to max supported for CPU (when SpeedStep is disabled in BIOS). This is however socket 775 motherboard... …

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Re: Processor Clarification

Posted on 2021-04-22, 11:35

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Same for mentioned P4B https://www.asus.com/supportonly/P4B/HelpDesk_CPU/ (only 400MHz). But it may work when overclocking chipset. I'm not saying that it will work for sure. Asrock for example promised 1066FSB on i865 (officially max 800MHz) - ConRoe865PE , 775i65G . It's nothing unusual... Anyway, …

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Re: Processor Clarification

Posted on 2021-04-22, 09:52

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Acording to this review https://m.hexus.net/tech/reviews/mainboard/242-asus-p4b/, Asus P4B (full ATX) being its big brother based on the same chipset, worked just fine with 533MHz Northwood. So you may give it a try.

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Re: PC Chips M577 / Amptron PM9900 - no POST or beeping with AT PSU, will not turn on with ATX PSU

Posted on 2021-04-21, 08:03

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PCI debug POST card maybe ? Broken BIOS, coin battery discharched ?

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Re: Socket 7 to SLOT 1 adapter?

Posted on 2021-04-15, 10:41

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

(...) I have for example PII 400 SL2S7 which can be clocked 133Mhz (2x66 without L2) and 166Mhz(2.5x66MHz with L2) up to 5x100MHz stable. That's nice, and being a Deschutes core, you must be able to almost run it on passive cooling at 133 MHz? Probably yes, but I only tested it at this speed, and …

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Re: Philips/Yamaha sound card

Posted on 2021-04-15, 07:52

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here: https://www.philscomputerlab.com/audician-32-plus.html For DOS you can also use Unisound UNISOUND - Universal ISA PnP Sound Card Driver for DOS v0.81b or Tiido's SetYMF utility T-04YBSC-A, new YMF71x based sound card + SETYMF utility

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Re: Socket 7 to SLOT 1 adapter?

Posted on 2021-04-14, 19:19

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Slowest Slot 1 CPU is Pentium II 233 Klamath (or maybe cacheless Celeron 266MHz) ? Besides that, some SLOT1 cpus are multiplier unlocked. Lowest possible multiplier is 2x (automatically disabling L2 cache) or 2.5x with L2 enabled. I have for example PII 400 SL2S7 which can be clocked 133Mhz (2x66 …

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Re: win 98 regedit missing

Posted on 2021-04-07, 14:49

by

by zyga64

in Milliways

in Milliways

Regedit.exe should be inside WIN98_46.CAB. Extract it to c:\Windows

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Re: Identifying Chipsets/motherboard

Posted on 2021-03-29, 07:05

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Download Intel(R) Chipset Software Installation Utility V5.02.1003 from Asus support site linked above in one of my posts, then apropriate driver for your graphics card.

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Re: Games that sound best with GUS?

Posted on 2021-03-24, 11:45

by

by zyga64

in Milliways

in Milliways

I know this is not exactly a game, but C64s (Commodore 64 emulator for DOS) works much better with GUS than with SB. On my 486DX33 I can play C64 games at 100% speed with sound. This is not possible with Soundblaster (without frameskipping).

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Re: Harris 286 motherboard not booting up

Posted on 2021-03-24, 07:41

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Bank zero seems to be the first row of 4 modules, bank 1 the second. Bank 3 and 4 the unpopulated on next to them. You are absolutely right, my bad. I forgot that 286 being 16bit processor needs 16bit memory 8) So 4 chips x 4 bit is 16 bit. Third and fourth bank are those pairs of sockets for SIPP …

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Re: Harris 286 motherboard not booting up

Posted on 2021-03-22, 10:49

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

One memory chip is 256kB x 4 bit , so you should get 8 x 256kB x 4 bit = 1MB Maybe some memory chips are broken ? I can't see any jumpers for memory configuration (there are jumpers for selecting memory bank on my 286 SCAMP board). Unfortunatelly Google doesn't know Twinhead TH4100B chipset :( …

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Re: Fixing a PCChips m729 v1.2 mobo?

Posted on 2021-03-18, 14:12

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Steapa wrote on 2021-03-18, 13:50: PCChips mobo + Celeron Convigton 266 + SiS 6326 + 32MB ram = The worst setup for the late 90s? 😁 Well... That was almost identical to mine except for the graphics card 😉 I had S3 Trio 3D 4MB.

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Re: Fixing a PCChips m729 v1.2 mobo?

Posted on 2021-03-18, 07:22

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I had this board (well not exactly "this" one) when it was new (1998). It was a constant struggle to find stable configuration: - not to many cards in PCI slots (I had to use ISA SCSI controller for CD burner), I think it is better to avoid PCI cards at all - anything above Riva 128 or Intel 740 …

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Re: TOP 100 applications for MS-DOS ? can you share some to the list?

Posted on 2021-03-17, 11:09

by

by zyga64

in Marvin \ Software

in Marvin \ Software

[*] XMSDSK & EMSDSK - a ramdisk utility which can be used to lower the available RAM memory. Useful for DOS games which refuse to work if more than 32 MB RAM are installed. There are two more ways for limiting memory size in DOS: - himemx with /MAX=##### switch - jemmex with MAXEXT switch MAXEXT=l …

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Re: TOP 100 applications for MS-DOS ? can you share some to the list?

Posted on 2021-03-17, 10:40

by

by zyga64

in Marvin \ Software

in Marvin \ Software

top20 DOS utils/tools

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Re: Identifying Chipsets/motherboard

Posted on 2021-03-17, 10:34

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Nope. This little brown slot is probably one of AMR/CNR/ACR. Probably most useless slot in computer history, albeit available on many motherboards.

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Re: 286 dead, long live the 286! Sourcing and building a fast 286 replacement

Posted on 2021-03-15, 18:23

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

BIOS ROM image for the Biostar MB-1220VE: Biostar_MB-1220VE.zip The BIOS ID string appears to be: 20-0001-D61223-00101111-050591-SCAMP286 A poke around the image with a hex viewer shows a lot of memory optimisation options, as you would expect to find in a decent 386 era BIOS. So it looks to be the …

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Re: Identifying Chipsets/motherboard

Posted on 2021-03-15, 17:42

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Try this file: https://dlcdnets.asus.com/pub/ASUS/misc/audio/c-media/cm275a_w9x.zip BTW. Asus still hosts drivers for this motherboard: https://www.asus.com/AU/supportonly/P4B-M/HelpDesk_download/ Scratch that so I have system sounds but I can't get sound working on the CD Player accessory or sound …

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Re: Identifying Chipsets/motherboard

Posted on 2021-03-15, 12:53

by

by zyga64

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Try this file: https://dlcdnets.asus.com/pub/ASUS/misc/audio … /cm275a_w9x.zip BTW. Asus still hosts drivers for this motherboard: https://www.asus.com/AU/supportonly/P4B-M/HelpDesk_download/

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