Re: 486 restoration with mystery IDE HDD issues; help?

Posted on 2023-09-14, 14:07

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hello everyone! I've been trying to build a 486 out of some parts that should work, but I've got this persistent problem with the HDDs not holding formatting. It's reliably unreliable, and consistently inconsistent. A friend sent me here for help, since I'm at the end of my rope. I'll get right …

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Re: Showing some love for Adaptec's ugly ducklings: Adding big drive support to EISA and VL controllers

Posted on 2023-09-13, 23:48

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Naturally. Anyone happen to know offhand a DOS utility to expand an existing FAT32 partition? You don't just edit the size of your FAT32 partition. You will probably alter file system type too. There is a difference between FAT32 (CHS) = type 0Bh and FAT32 (LBA) = type 0Ch. In your place I'd do a …

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Re: Showing some love for Adaptec's ugly ducklings: Adding big drive support to EISA and VL controllers

Posted on 2023-09-13, 22:33

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

maxtherabbit wrote on 2023-09-13, 19:49: Beautiful 20230913_154050.jpg Please don't forget to use the patched ASPI7DOS.SYS too INT13 Extensions to Adaptec 274x EISA & 284x VLB

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Re: Aztech Sound Galaxy NX Pro with SCSI - proper software?

Posted on 2023-09-12, 09:24

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The hard drive will remain the original (size) I had when I was a kid, a 42 Mb. :) That size was in "my" first 386 SX too. I remember 965 / 5 / 17. One day I had a backup of it and typed the forbidden "format c:" command. Later I walked from 2 MB via 3 MB to 5 MB. Aztec SBpro and Mitsumi CDROM (2x …

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Re: For best performance: Is manufacturers imprinted recommendation a LIE?

Posted on 2023-09-11, 18:11

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

We've given this board another chance and added a Tekram DC-680T cache controller with a connected SD to IDE adapter. It seems that this Tekram can handle 4 GB SD cards with a good CHS remapped transalation. After adding a sound card (OPTI931 based) we found a crash during Windows 95' start, right …

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Re: Upgrading a 486SX (IBM PS1)

Posted on 2023-09-11, 10:19

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

... Hacking in LBA support is as far as I'm aware beyond what people can reasonably do with BIOSes right now, sadly. ... mkarcher is quite good in it, as far as SCSI controllers are concerned. However, SCSI controllers without INT13 extension support already use sector numbers internally ("LBA") …

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Re: Heatsink-Fan: 3rd Gen i5 compatible with 4th Gen i7?

Posted on 2023-09-09, 07:51

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

No, the main new and exclusive feature to socket 1150 (Haswell, Haswell Refresh, Broadwell) is FIVR (fully integrated voltage regulation).

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Re: Dual Pentium 133: what to use it for?

Posted on 2023-09-08, 17:33

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

With a bit more RAM, StarCraft 1 will run. It is DirectX 5, but uses no 3D.

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Re: BusTek BT-742A EISA SCSI adapter problem with >1GB HDs - fix

Posted on 2023-09-08, 08:57

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Do BIOS and SCSI driver support disks > 8 GB too? Try an Adaptec 2740/2742 in narrow or wide version instead. mkarcher has patched BIOS + ASPI7DOS driver to even get past 8 GB.

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Re: i5-3570K / MSI Z77A-G43 / GTX 650Ti / X-Fi

Posted on 2023-09-07, 23:56

by

by Disruptor

in Marvin \ System Specs

in Marvin \ System Specs

Oh dear, this system is comparable or a bit better than my current Windows 10 system. I guess your system even would be good enough for StarCraft II - except the operating system ofc.

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Re: Enhanced Am486DX4 100 and 120 can I set to WT instead of WB?

Posted on 2023-09-07, 13:42

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The board I use does not support WB, can I use the enhanced CPU in WT mode and still use L1 16K size? Otherwise, I'm forced to use intel DX4 which is WT with 16K L1. Second quesetion: Can Intel 486DX4 100 overclock to 120MHz? Thank you and cheers, Yes, you can. But the performance loss will …

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Re: 600MHZ Gaming PC - Complete Rebuild

Posted on 2023-09-04, 19:06

by

by Disruptor

in Marvin \ System Specs

in Marvin \ System Specs

pete8475 wrote on 2023-09-04, 01:58: Final specs: Tyan Tsunami S1846 Intel Pentium 3 600 256MB PC100 Kingston 128GB SD LG DVD-RW beige ATX case Corsair CX550 Geforce […] Show full quote Final specs: Tyan Tsunami S1846 Intel Pentium 3 600 256MB PC100 Kingston 128GB SD LG DVD-RW beige ATX case …

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Re: Advice on what I'm even looking for

Posted on 2023-09-04, 18:03

by

by Disruptor

in Milliways

in Milliways

If your tape drive is floppy based, you cannot connect both 3.5" and 5.25" floppy at the same time. However, it is unlikely your tape drive ever will be used. If you get at 5.25" floppy, it hopefully won't scratch the disks. Can you make a picture of the CDROM interface card please?

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Re: Asus pvi-486sp3 bios reset

Posted on 2023-09-04, 08:59

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Do you use EDO or FPM SIMMs?

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Re: Which harddrive solution for a fast 486 system

Posted on 2023-09-03, 04:01

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Should I go for a SCSI drive or what are the best options? System: Gigabyte GA-486AM with latest BIOS (Nov 7 1995) AMD Am5x86-133 MHz 64 MB RAM Hercules Terminator 3D S3 ViRGE (4MB) OS: MS-DOS 6.22 with Windows 3.11 for Workgroups 1) When you have 256 kB of L2 cache and you operate it in write back …

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Re: Which of these 3com cards is the fastest for a 486 66mhz? ?

Posted on 2023-09-02, 19:52

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Even my 3com 3c597 EISA 10/100 card does not get out more than 14 MBit/s on WinNT 4.0 on a 50 MHz 486. There's not much difference to an Am5x86 @ 3x50 MHz too. However, my Adaptec 2740W EISA Wide SCSI controller gets out 18 MB/s. You'd probably get more out with DMA or shared memory cards, but where …

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Re: Help with mystery Wang 486SX desktop

Posted on 2023-09-01, 10:24

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

websterp wrote on 2023-09-01, 05:21: I don't necessarily want to install another CPU, just one step in the process of elimination. Basically you need a 487 SX or a 486 ODP (not the ODPR) to test this. But I guess you don't have access to one.

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Re: Help with mystery Wang 486SX desktop

Posted on 2023-09-01, 04:12

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ah, unpopulated 9 cache sockets + dirty tag ram socket. But why do you want to install another 486 SX? I don't consider this board to support multi processors. I'd try to check the failing boot process with a Port 80 diagnostics card. Which RAM modules have you tried?

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Re: Considering building a i486 Computer with either VLB or PCI video card support on slots

Posted on 2023-09-01, 04:09

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Very well... I already am considering to buy one from a private source and the board will also have about 256k of L2 cache on top. plus the VLB video card will be MUCH faster than my Zenith Z Select 100 XE will be with it's integrated isa video bus. Do not install too much RAM when you have 256 kB …

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Re: Considering building a i486 Computer with either VLB or PCI video card support on slots

Posted on 2023-09-01, 04:07

by

by Disruptor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You can consider dual booting Win95B or Win95C / DOS. I'd recommend to use either VLB or PCI boards, but due to performance reasons no combined ones. With PCI you probably won't need voltage regulator. PCI graphics cards are rather cheaper. But do NOT use a PCI SCSI card. PCI boards most likely will …

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