Dual channel U320 SCSI, any benefit?

Posted on 2018-09-15, 21:19

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by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've noticed that some of these U320 SCSI cards, e.g. Adaptec ASC-39320A, are dual channel, that is, they have two 68-pin connectors for U320. The manual mentions that this is done so that you can have one channel for U320, and to use the other channel for more legacy devices. This way, your U320 …

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Re: NS Geode GX1 / Cyrix MediaGM - Double sided memory required?

Posted on 2018-09-15, 20:51

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by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It is fairly common when pushing memory timings to the limit that the larger size RAM's won't work. The more RAM the system/chipset has to deal with, the more resources are required (or so it seems). I've run into this time and time again. I can run my IBM 5x86c-133/2x, for example, with only 1 ws …

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Grand Theft Auto + DOS + Voodoo2

Posted on 2018-09-15, 12:21

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by feipoa

in Marvin \ Software

in Marvin \ Software

I have Grand Theft Auto installed to C:\Games\GTA, in which the DOS version is in C:\Games\GTA\gtados and the Windows version is in C:\Games\GTA\gtawin . Does anyone know how to get glide working in this game in DOS, or from within Windows? When I load gtados.bat from within Windows, the screen goes …

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Re: How to clone SCSI HDD's from Adaptec AHA-2842A (VLB)

Posted on 2018-09-15, 00:17

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

In this case, it didn't seem to need fdisk /mbr.

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Re: How to clone SCSI HDD's from Adaptec AHA-2842A (VLB)

Posted on 2018-09-14, 23:51

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by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Alright, memory fuzzy, but came back. The issue was the missing copy of the boot sector for NT4 to see. So with the cloned HDD, I booted into NT4 and ran: dd if=\\?\Device\Harddisk0\Partition0 of=bootsect.w95 bs=512 count=1 All is back to normal. Half of this was a memory forgetting excercise, while …

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Re: How to clone SCSI HDD's from Adaptec AHA-2842A (VLB)

Posted on 2018-09-14, 23:39

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OK, so the clone was successful concerning the translation scheme. It went back to 255/63. However, I am left with the original problem. With the cloned drive, I go to boot, it shows the NT boot menu, I select WIndows 95, press enter, then I get "Invalid System Disk" "Replace the disk, then press …

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Re: NS Geode GX1 / Cyrix MediaGM - Double sided memory required?

Posted on 2018-09-14, 23:31

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by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

From my experience with my Cyrix Media GXm-266 board, it needs to use single sticks of 128 MB (chips on both sides of the module - double sided). For 256 MB, you need to use two 128 MB sticks. I am able to use 256 MB CL3 just fine, but if I want to use CL2, I needed to reduce the total memory size …

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Re: How to clone SCSI HDD's from Adaptec AHA-2842A (VLB)

Posted on 2018-09-14, 23:23

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OK. It looks like the ghost disk has a hidden config.sys file. I was able to add aspi7dos.sys to it. It loaded successfully when booting from the Ghost boot disk. I am now able to access both HDD's in Ghost. Ghost does mention that the HDD may not work with large HDD sizes. The Adaptec BIOS also …

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Re: Voodoo 1 vs. Voodoo 2 on a 486

Posted on 2018-09-14, 22:36

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by feipoa

in Marvin \ Video

in Marvin \ Video

Yeah, I found that intersting as well with cache write cycle and main memory speed. ----> Help with SiS 496/497 Tomato 4DPS 486 motherboard The cache/memory and other settings on SiS496 boards are more difficult to figure out and optimise compared with Um8881 boards.

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Re: How to clone SCSI HDD's from Adaptec AHA-2842A (VLB)

Posted on 2018-09-14, 19:22

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by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Disruptor, is that all you did? I used my MS-DOS 6.22 and did not load any driver but ASPI7DOS.SYS I did not use the boot disk. Perhaps it helps to use a hex editor and zero all bytes in partition sector. Then cold boot the computer. Oh, I didn't realise you could boot with MS DOS 6.22 and then …

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Re: How to clone SCSI HDD's from Adaptec AHA-2842A (VLB)

Posted on 2018-09-14, 13:16

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by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well, there are only two 4 GB partitions, so the rest is wasted anyway. OK, adding ASPI7DOS.SYS to the GHOST diskette did nothing. How to tell the GHOST diskette to use ASPI7DOS.SYS?

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Re: How to clone SCSI HDD's from Adaptec AHA-2842A (VLB)

Posted on 2018-09-14, 13:07

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Not sure if this will help, but can't you just manually edit the NG2003 bootable diskette to include the required drivers https://support.symantec.com/en_US/article.TECH107936.html That is a good point. I just checked my Ghost diskette and ASPI7DOS.SYS is not included. I've added it to the diskette …

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Re: How to clone SCSI HDD's from Adaptec AHA-2842A (VLB)

Posted on 2018-09-14, 12:48

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can you use a Linux boot disk on your 486 system? Even a minimal system, as long as it has the "dd" command and drivers for your SCSI card. One I can think of is an older Slackware boot/root disk set such as https://mirrors.slackware.com/slackware/slackware-3.6/bootdsks.144/aha2x4x.s for bootdisk …

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Re: How to clone SCSI HDD's from Adaptec AHA-2842A (VLB)

Posted on 2018-09-14, 12:45

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I don't have had problems with my EISA 2740W using ASPI7DOS.SYS and DOS based Ghost 2003. My translation is C-255-63. I don't have created partitions beyond the 8 GB limit. What translations are in your partition sectors? It is supposed to use 255 head / 63 sector. When I copy the HDD using an …

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How to clone SCSI HDD's from Adaptec AHA-2842A (VLB)

Posted on 2018-09-14, 12:00

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have this Adaptec AHA-2842A VLB SCSI card in a 486. I ran out of HDD's during the build, so I used an Ultra320 , 146 GB drive and made two 4 GB partitions. Well, now I want my 146 U320 HDD back for a new build. I have a noisy 73 GB u320 drive I'd like to clone the data onto. When I hook both HDD's …

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Re: Question regarding (Microsoft) bus mouse pin out

Posted on 2018-09-14, 09:48

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

https://en.wikipedia.org/wiki/Bus_mouse + https://web.archive.org/web/20100731110928/ht … land/mouse.html big X is the mouse button 2.

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Re: Socket 5 Mobo Conversion - PS2 Mouse/KB to AT KB Conversion - Issues

Posted on 2018-09-14, 02:51

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by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

photos? dilling out vias? wouldn't you just suck out the old solder? I'm confused.

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Re: Voodoo 1 vs. Voodoo 2 on a 486

Posted on 2018-09-14, 00:53

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by feipoa

in Marvin \ Video

in Marvin \ Video

The 56 vs. 59 MB/s for RAM read is the edge I was talking about in favour of the SiS 496. I want to say that the UMC had a slight edge in L2 cache read speed, but don't recall. Are you able to run your system with 3-1-1-1 and see what the L2 result is in cachechk? At 60 MHz FSB, I had to use 3-2-2-2 …

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Re: Voodoo 1 vs. Voodoo 2 on a 486

Posted on 2018-09-13, 22:35

by

by feipoa

in Marvin \ Video

in Marvin \ Video

155/84/46 for 2-1-1-1, and I assume that "DRAM Faster" = 1ws/0ws? I get 155/76/56 for 3-1-1-1 and DRAM 0ws/0ws. Data on page 4 of this thread. Did your system pass HIMEM with these settings? Will you be able to install Windows and run a game? It is fairly easy to get faster settings going in DOS. …

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Re: Voodoo 1 vs. Voodoo 2 on a 486

Posted on 2018-09-13, 09:42

by

by feipoa

in Marvin \ Video

in Marvin \ Video

The POD generally got a bad rap for being expensive, late, and with specs changing. It was also widely considered slow in everyday tasks at the time. It does alright in games, obviously. Anyone have 3D gaming experience with a POD83 from 1995-1998? If it was your main system at the time, it would be …

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