Re: Future planning for my 486DX4 100 (Upgrading my first PC which I acquired in 1994)

Posted on 2024-02-06, 20:19

by

by CoffeeOne

in Marvin \ System Specs

in Marvin \ System Specs

So I would definitely add the S3 VLB + the ISA SCSI card. Anyway the VLB SCSI card would not bring a lot of gain (if any) against the ISA card. Filling the cache will give a good performance boost. I'm thinking the same thing! Imagine slotting one of these little monsters in that VLB slot: s-l1600- …

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Re: 486 motherboard. Raising from the dead.

Posted on 2024-02-06, 15:45

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

We were talking only about L1 write back. So you should mark this clearly as a typo: "I think the WB in this description refers to the L2 cache,..." WTF are you talking about? I added a specification of the 486 OPTI chipset. In there they write about write back, so in this description WB means L2 …

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Re: 486 motherboard. Raising from the dead.

Posted on 2024-02-06, 15:00

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The - even older - Opti 82C391 / 82C392 chipset for 386 CPUs supports L2 WB cache also. How is this related to the thread? This was (clearly) referencing what you wrote a couple of posts back: "OK about L1 WB: As user MikeSG already wrote, you can check very easy if your DX2 is a WB type by just …

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Re: 486 motherboard. Raising from the dead.

Posted on 2024-02-06, 14:14

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

majestyk wrote on 2024-02-06, 13:16: The - even older - Opti 82C391 / 82C392 chipset for 386 CPUs supports L2 WB cache also. How is this related to the thread?

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Re: Future planning for my 486DX4 100 (Upgrading my first PC which I acquired in 1994)

Posted on 2024-02-06, 11:24

by

by CoffeeOne

in Marvin \ System Specs

in Marvin \ System Specs

My IBM 486-3.jpg My IBM 486 - cover removed left-2.jpg The main board has the following specs: (Disregard the CPU specs given, as I got these specs off another site) IMG_8133.PNG The machine features integrated graphics with 1MB of video ram, and only has 2x 16-bit ISA and 1x 32-bit VESA expansion …

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Re: What hasn’t been done?

Posted on 2024-02-04, 19:41

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

dr_st wrote on 2024-02-04, 18:08: DP 1.2 8K on VLB. 😁

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Re: Was DIP VRAM ever made in 512 kB?

Posted on 2024-02-04, 19:38

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Check what additional resolution you have after upgrading to 2 MB. 1024 x 768 x 256 colors - Interlaced and Non- Interlaced 1024 x 768 x 64K colors - Interlaced (with 2MB VRAM) 1280 x 1024 x 16 colors - Non-Interlaced 1280 x 1024 x 256 colors - Non-Interlaced (with 2MB VRAM) 1024 x 768 x 64K colors …

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Re: Was DIP VRAM ever made in 512 kB?

Posted on 2024-02-04, 17:56

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ooh, another IIT board... Any chance you could dump the VGA BIOS ROM? I have a different one (a Puretek PT-2072 with AGX 016A chip), but have hit a brick wall twice trying to get VESA working fully. Hercules has VESA drivers which look interesting, but they refuse to run on non-Hercules cards. …

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Re: What hasn’t been done?

Posted on 2024-02-04, 17:50

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here’s my list I would like to see the community achieve Diy socket 7 motherboard Fpga cpu replacements with modern instruction sets More diy video cards (already several) An ISA one with DVI would be amazing perhaps gd5434 4mb based? DVI on an ISA card seems nice. But even nicer: A GD5434 with 2MB …

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Re: Was DIP VRAM ever made in 512 kB?

Posted on 2024-02-04, 17:19

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought a Hercules Graphite VL Pro , not because it is good, but because it is odd. It claims to be able to handle 2MB but with stock 1MB. The only upgrade spots look to be two DIP-24 holders but even the DIP VRAM I can find is 256 kB only and in a ZIP package. Was DIP VRAM ever made? I want to …

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Re: Vesa Local Bus graphics card - upgrade video memory

Posted on 2024-02-04, 10:47

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I can watch a Video CD Movie on my 486 computer with CL-5429 VLB video card with 2mb ram I have a 486dx4-100 CPU with 16mb of 30-pin Parity RAM 8x CDROM Movie playback is Very Good. NOT Choppy. Link: https://www.vogons.org/viewtopic.php?p=969913#p969913 You put the wrong RAMs into those sockets, it …

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Re: A NOT-SO EPIC Dual Pentium Pro Build

Posted on 2024-02-04, 10:01

by

by CoffeeOne

in Marvin \ System Specs

in Marvin \ System Specs

That should have been a joke, I personally found it very funny. I understand, I didn't get the humour initially! (For that I do apologise!) The interesting thing about PC is that period correctness is difficult to define, as many people push their systems for a long time and through many upgrade …

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Re: 486 DX4 75Mhz…. let’s talk about it

Posted on 2024-02-04, 00:01

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Besides being an overdrive for obsolete 25mhz 486’s I’ve never understood the point of this chip in “new desktop “ computers Slower cache, ram, video and hard drive performance meaning the venerable DX2-66 could run side by side . Marketing? The DX4 was never intended to be a flagship (the Pentium …

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Re: 486 DX4 75Mhz…. let’s talk about it

Posted on 2024-02-03, 23:36

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Dx4-75’s were marketed to death in laptops. They seemed to be common. Besides being an overdrive for obsolete 25mhz 486’s I’ve never understood the point of this chip in “new desktop “ computers Slower cache, ram, video and hard drive performance meaning the venerable DX2-66 could run side by side …

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Re: Vesa Local Bus graphics card - upgrade video memory

Posted on 2024-02-03, 23:11

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I was looking at reviews of the Hercules Graphite Pro VL vs the Orchid Celsius and the primary difference is the Orchid 2 MB RAM. I figure upgrading the memory would improve the IIT AGX-015 from a low-middle card to acceptable. Unfortunately I never owned such cards. The Hercules Graphite Pro VL …

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Re: Vesa Local Bus graphics card - upgrade video memory

Posted on 2024-02-03, 23:04

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I can watch a Video CD Movie on my 486 computer with CL-5429 VLB video card with 2mb ram I have a 486dx4-100 CPU with 16mb of 30-pin Parity RAM 8x CDROM Movie playback is Very Good. NOT Choppy. Link: https://www.vogons.org/viewtopic.php?p=969913#p969913 You put the wrong RAMs into those sockets, it …

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Re: Generic/uninteresting yet rare video cards?

Posted on 2024-02-03, 22:58

by

by CoffeeOne

in Marvin \ Video

in Marvin \ Video

pc-sound-legacy wrote on 2024-02-03, 19:39: @CoffeeOne sure Thx. Very nice looking card, I assume it came from the factory with 2MB, because all the RAM chips are the exact same type.

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Re: Biostar MB-8433UUD-A

Posted on 2024-02-03, 22:55

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Most likely you have got 20ns chips. 15ns chips usually can do 2-1-1-1 @40MHz ... when you drive 2 banks. Yes, I agree. Double banked cache relaxes the timing. I was able to get 512kB single bank cache stable at 40MHz on an Asus PVI-486SP3 with 15ns chips, but it was a really super hard to find 5 …

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Re: A NOT-SO EPIC Dual Pentium Pro Build

Posted on 2024-02-03, 22:46

by

by CoffeeOne

in Marvin \ System Specs

in Marvin \ System Specs

if you need more PCI slots, you can always find the big brother to that board... https://theretroweb.com/motherboards/s/asus-p-i-p65up8 https://www.vogons.org/viewtopic.php?f=25&t=48043 I am happy that you could beat the OP in the "dick waving contest". Sorry, could not resist. It's not a dick …

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Re: A NOT-SO EPIC Dual Pentium Pro Build

Posted on 2024-02-03, 19:33

by

by CoffeeOne

in Marvin \ System Specs

in Marvin \ System Specs

luckybob wrote on 2024-02-01, 14:49: if you need more PCI slots, you can always find the big brother to that board... https://theretroweb.com/motherboards/s/asus-p-i-p65up8 Bitchin' dual p-pro setup I am happy that you could beat the OP in the "dick waving contest". Sorry, could not resist.

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