Re: The great Pentium Pro haul of 2018

Posted on 2021-03-18, 14:19

by

by OzzFan

in Milliways

in Milliways

I just saw the YouTube video posted from January 12 and saw the links to this thread in the video description. So sad to learn I'm far too late. Those are quite nice systems! So envious of the people who got them.

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Re: Coding help

Posted on 2021-03-08, 06:34

by

by OzzFan

in Marvin \ Software

in Marvin \ Software

I'd like to get around to writing some code that uses assembler for at least two of my applications in the suite, but I'm already struggling with learning old C. Not sure if I'll be able to pick up x86 assembler as well. :-/ What runtime are you targeting? 16bit, 32bit, protected mode? 16bit real …

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Re: Coding help

Posted on 2021-03-08, 06:30

by

by OzzFan

in Marvin \ Software

in Marvin \ Software

I suspect as much as well. Unfortunately my collection of old beginner-level C/C++ books don't go into explanation of the different memory models and when one is appropriate to use over the other. I did a search for "dos memory model pointer sizes" and the first two links seem useful: https:// …

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Re: Coding help

Posted on 2021-03-07, 18:03

by

by OzzFan

in Marvin \ Software

in Marvin \ Software

I don't think I'd need more than 16 bytes of data, but I'm wary of using an area of memory that other applications may write to unexpectedly. Yes, it seemed a bit scary to me at first looking back at it until I realised that since under DOS there isn't multitasking, you won't have any other …

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Re: Coding help

Posted on 2021-03-05, 22:22

by

by OzzFan

in Marvin \ Software

in Marvin \ Software

Ok, so I think I'm getting the hang of this old school coding. I'm still having some problems using some of the C++ standards in the STLport for the DIgital Mars compiler, such as string and cout (lots of errors about bad header references in the iostream.h file). Did you get these sorted out? Sort …

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Re: How to set Asus VL/I-486SV2GX4 (SiS471) into L2:Write-through mode?

Posted on 2021-01-15, 20:00

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What flash utility did you use? I'm having trouble locating the right one. You won't fine a flash utility because the flash chip is an EPROM that needs to be erased with UV light and programmed externally. Ah ok. I don't have one of those. So these aren't flashable EEPROMs? No chance of getting an …

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Re: How to set Asus VL/I-486SV2GX4 (SiS471) into L2:Write-through mode?

Posted on 2021-01-15, 14:13

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What flash utility did you use? I'm having trouble locating the right one.

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Re: Looking for Windows 95 PCI Gigabit 1000Mbps ethernet card.

Posted on 2021-01-14, 23:23

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Have you tried setting up something like an iPerf test between two systems to see if the network bandwidth is there?

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Re: Newly made 4MB 30pin SIMMs

Posted on 2021-01-14, 21:38

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I wonder if these modules would help my 486 - though I'm not sure if it'll work without parity memory and my soldering skills are nil. Did you say that 60ns 4MB 30 pin modules can be found on eBay for those of us in the States?

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Re: CPU collectors: do you collect each and every revision or just one?

Posted on 2021-01-14, 20:48

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My favorite timeframe is from 1986 - 1996. So many things were going on; so much competition in the CPU space, advances in Operating Systems were happening, so many vendors were showing off their products trying to differentiate and grab a piece of the pie, and shareware and BBSs and benchmarks... …

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Re: Looking for Windows 95 PCI Gigabit 1000Mbps ethernet card.

Posted on 2021-01-14, 20:00

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

In the end, the NICs are cheap enough that you might as well try both 100Mbps an 1000Mbps and determine for yourself how fast they are in relative and absolute terms . Please let us know if you do run those tests . I haven't found a cheap gigabit NIC that works with Win95 yet. I'm only willing to …

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Re: Looking for Windows 95 PCI Gigabit 1000Mbps ethernet card.

Posted on 2021-01-14, 04:12

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

digicube wrote on 2021-01-14, 02:05: Nice to know that but the PC is also for Win98SE and hopefully NT4 in the future. Maybe DOS too. Of those you named, only NT4 can handle symmetric multiprocessing. Win9x and DOS are not capable of using more than 1 CPU.

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Re: Fastest socket 7 build on a 430tx chipset

Posted on 2021-01-13, 07:00

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

K6-III+ @ 550. Pretty! I'm sure you paid a hefty price, as you said. 😀 This looks like it's going to be an awesome build. Can't wait to see when it's finished!

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Re: CPU collectors: do you collect each and every revision or just one?

Posted on 2021-01-13, 02:43

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am happy with the fastest CPU per CPU generation. For my older systems (e.g. pre-Pentium) I am trying to go with the fastest for each manufacturer. So for my 486s I have an Intel DX4 100MHz, an AMD Am5x86 133MHz, an AMD DX4 100MHz, a Cyrix Cx5x86 100MHz (having trouble sourcing the 120/133Mhz …

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Re: CPU collectors: do you collect each and every revision or just one?

Posted on 2021-01-13, 02:32

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I was trying to collect every CPU milestone at the fastest possible speed. That is to say, for example, a Pentium 66MHz Socket 4, a Pentium 200MHz, a Pentium 233MHz MMX, Pentium II 450MHz, Pentium III 1000MHz 100MHz FSB Slot1, Pentium III 1000MHz 133MHz FSB Socket 370, etc, etc... and each had to …

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Re: CPU collectors: do you collect each and every revision or just one?

Posted on 2021-01-13, 02:11

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I was trying to collect every CPU milestone at the fastest possible speed. That is to say, for example, a Pentium 66MHz Socket 4, a Pentium 200MHz, a Pentium 233MHz MMX, Pentium II 450MHz, Pentium III 1000MHz 100MHz FSB Slot1, Pentium III 1000MHz 133MHz FSB Socket 370, etc, etc... and each had to be …

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Re: Yet another 486 DX4-100 build

Posted on 2021-01-12, 00:34

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The problem I had with my VLB controller was supporting large hard-drives. The driver for the VLB controller will only support up 410mb hard-drive. If I used a larger capacity hard-drive the driver would report an error and only run at 16-bit mode and not 32-bit mode. So slower data transfer rates. …

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Re: ISA vs Socket 5/7 bus speed

Posted on 2021-01-04, 15:40

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The ISA bus is not necessarily fixed at one speed depending on the design of the motherboard. A lot of late 486 and Pentium era boards ran the ISA bus off a divider from the bus clock. You may have to see if your BIOS supports changing the divider to keep the ISA bus between the 8 - 10MHz range as …

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Re: Help needed with restoring 486 Packard Bell system

Posted on 2021-01-04, 15:36

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I actually just found this Zenith 5-slot riser that looks like it might work...it's cheap enough I'm tempted to just buy it and take the chance. If it really just straight up ISA like it looks to be it should just work, right? https://www.ebay.com/itm/Zenith-Riser-Card-240-8038-10-85-3738-01/ …

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Re: Tyan Titan-Pro AT/ aka S1662

Posted on 2021-01-03, 18:33

by

by OzzFan

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Nice build. I have a similar system with an Intel 440FX board running 2 Pentium II Overdrives, 512MB RAM and NT 4.0 SP6a and is currently my legacy file server and PDC for my Win3.x/OS/2/DOS systems. The thing runs like a champ!

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