Re: need info on m$ quickbasic

Posted on 2020-11-23, 01:43

by

by noshutdown

in Milliways

in Milliways

cyclone3d wrote on 2020-11-20, 06:55: Found the 1.02 update documentation on Programmers Corner: QBASIC.zip So the 1.02 update was free from MS. a pity that its only the document and not the update patch. Epstein didn't kill himself maybe he did, guess he suffered depression because he knew too …

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Re: most compact 8088/8086 board you've seen?

Posted on 2020-10-13, 09:01

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here's a compact board - also fairly well laid out Can be expanded to 768kb apparently :-) neat for an 8086 however it doesn't meet my initial requirements: this doesn't include industrial card-style boards, it should be in baby-at form with following features: 5~6 8bit isa slots(8086 should have …

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a few questions, may be stupid but i can't dig up so many posts and documents

Posted on 2020-10-13, 07:15

by

by noshutdown

in DOSBox General

in DOSBox General

1. can dosbox run on a 486+windows98 machine? 2. can i mount a real harddrive as a whole and fdisk/format it in dosbox-booted-dos? the purpose is to install classic dos(3.31 or 6.22) onto a second harddrive, from a machine with only windows and dos disk image files, without having any floppy drives …

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Re: Fake 486 Processor?

Posted on 2020-09-10, 05:37

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

i am sure its real, its some extremely late productions made in 2007.

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Re: horrible ide performance on sis496 mainboard

Posted on 2020-08-04, 06:40

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

i tried it on a umc8881 board and its equally slow, and so is the cf card. it displays pio4 mode but i feel its actually pio1 performance. would it get better in windows98?

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Re: 440BX - BIOS shows 756MB and CPU-Z shows 1 GB: Which is right?

Posted on 2020-08-02, 15:18

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

the 440bx officially supports: 100fsb sdram density up to 16mb per chip(so each dimm size is limited to 256mb with 16 chips, and 128mb with 8 chips) 1gb total ram size(only in 4 dimms with 16 chips each) and since you are using a 512mb dimm, no doubt you are going out of spec and its very likely to …

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Re: How important is a PCI graphics card in a 486?

Posted on 2020-07-30, 06:27

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

for dos performance, i surely have faith in my riva128 and gf2mx.

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Re: How important is a PCI graphics card in a 486?

Posted on 2020-07-29, 09:10

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

it really differs from person to person, for me its extremely important because 3d cards are all in pci form, so i don't collect any non-pci 486 boards.

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trying to explain edo vs fpm

Posted on 2020-07-29, 07:20

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

whats the difference between edo and fpm: for fpm, the output data becomes invalid once the cas line is pulled high, so the next read cycle cannot start until cpu has received the output data. for edo, the output data is still valid after the cas line is pulled high, until cas line is pulled low …

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Re: MSI MS-4144 ver 2.1 manual and BIOS help

Posted on 2020-07-19, 15:05

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

wouldn't that set cache to WT? I'll give it a shot since the p24c setting i've been trying don't seem to work. Oh, I should mention my board has the AMI GUI bios. And thanks for the reply! i've confirmed it to work, jc8 sets 3x/4x ratio for amd486dx4 with 16k wb cache. its jc7 that sets wb cache to …

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horrible ide performance on sis496 mainboard

Posted on 2020-07-18, 01:43

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

i am using a 8gb dom module, and the speedsys disk performance is horrible: it displays disk is in pio4 mode, but both buffered read and linear read are only at 2.6mb, while linear verify is 120mb. even an old regular harddrive shall score >5mb, and dom modules of this kind are usually rated at > …

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Re: Fake ISSI cache chips?

Posted on 2020-07-17, 11:03

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Certainly faked. Date code is silly and they weren't labled like that. Most likely 20ns or even 25ns ones. i agree that they are faked for the silly date, and i also suspect that all laser engraved ones are all faked. but, how should the real ones be labeled like? i am just not sure if the ones i …

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Re: MSI MS-4144 ver 2.1 manual and BIOS help

Posted on 2020-07-17, 04:03

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Anyone have jumper settings specific to the Am5x86-133 for this motherboard? I can't seem to get one of these chips stable on this motherboard, and I can't find any entry in the manual for it... regardless of how I set it up (cyrix 586 or intel dx4 WB jumper settings) it will boot and runt some …

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Re: Any thoughts on a CL 5430 card?

Posted on 2020-07-17, 02:02

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

i think its one of the slowest pci video cards

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Re: MSI MS-4144 ver 2.1 manual and BIOS help

Posted on 2020-07-16, 10:43

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

i have an idea: is it possible to figure out how the circuit of cpu voltage jumpers(jcv3 and jcv4) work so we can use more levels of voltage? currently there are only 3 levels: 3.45v, 3.8/4.0v(dunno which is correct) and 5.0v. also, what does the "factory reserved" jm1 and jv1 do? can anyone figure …

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sis496 dram timing problem

Posted on 2020-07-15, 04:02

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

board is a msi4144. according to sis496 datasheet, there are 4 dram timing presets defined for 25, 33, 40 and 50 fsb, and you can only choose one of them: fastest: 3-2-2-2, recommended for 25fsb fast: 4-3-3-3, recommended for 33fsb slow: 5-3-3-3, recommended for 40fsb slowest: 6-4-4-4, recommended …

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386 system passed doom but freezes in pcpbench

Posted on 2020-07-01, 07:53

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

board is a lenovo umc491 that looks like this one: https://www.vogons.org/download/file.php?id=56933&mode=view i actually got two boards of this model, because the first one had physical damage in a ram slot and therefore can only support 4 simms, however its the fastest 386 board i've seen so far, …

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performance of isa16bit ide controllers

Posted on 2020-06-13, 16:45

by

by noshutdown

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

in the 386 era, there were several brands of ide controllers: lg, umc, winbond, hmc, ali and some others that i can't remember now. has anyone tested whether they all perform similarly, or which one is faster?

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Re: discuss: comparision of yamaha and roland midi synthesizers product line

Posted on 2020-05-28, 14:21

by

by noshutdown

in Marvin \ Sound

in Marvin \ Sound

I always saw OPL4 as just the next budget pc sound card synth. Basically just an OPL3 with a simple Wave Table Rom bank, and a few megs of memory for additional samples. true, i have the same idea as yours. there are two solutions of the opl4: 1. a discrete ymf278 opl4 processor chip in combination …

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Re: discuss: comparision of yamaha and roland midi synthesizers product line

Posted on 2020-05-28, 09:54

by

by noshutdown

in Marvin \ Sound

in Marvin \ Sound

TG-77: The best FM module ever. 6-operator advanced FM + AWM with cross modulation. isn't it the fs1r? however, i dunno what was the yamaha equivalent of jv/xv series before motif was out? TG-500/300, later CS-6. tg-300/500 seems too old to match the jv1080/2080, also i think the ex5r was a match …

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