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Re: What's the absolute best 486 motherboard for 40 MHz FSB and slots?

Posted on 2018-12-19, 12:48

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks. Lol I googled MB1433 and I found this ultrasonic sonar: https://www.maxbotix.com/Ultrasonic_Sensors/MB1433.htm So, are you saying that both the MB1433 (whatever it is), the HOT-419, and the 486S2vGX4 work finely at 40 MHz FSB, 40 MHz VLB, and RAM? Thanks biostar mb-1433-uiv-a. Yes they work …

Re: What's the absolute best 486 motherboard for 40 MHz FSB and slots?

Posted on 2018-12-18, 22:21

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've done my tests on a mb1433 with a tekrzm dc680t disk controller and a tseng labs et4000w32p. Also tested a hot419 and a 486sv2gx4 with success. No knowledge of PCI boards except for the MB8433, which runs at 27mhz.

Re: The good old and glorious 486 DX 50 - and - rant against 25 MHz buses in the Pentium era

Posted on 2018-12-17, 15:50

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a Packard bell like that. The VGA is a cirrus logic vlb on the motherboard. Any isa card will be slower. You can use philcomputerlab's dos benchmark suite for your tests. Mine are done with it. Google it up 😀 Most probably no isa card is ever gonna be as fast as your onbard et4000.

Re: 486 max

Posted on 2018-12-17, 15:48

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That is motherboard depend and usually done through jumpers.

Re: 486 max

Posted on 2018-12-17, 15:30

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

486 multipliers selection is independent of bus speed. The final multiplier is hardcoded in the CPU. Basically, the CPU detects if your motherboard set the value of the multi to off or on. If off, you get the first hardcoded multiplier. If on, the second. So dx2s usually have 1x and 2x, Some AMD get …

Re: 486 max

Posted on 2018-12-17, 15:19

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Some Intel dx4s support 2x and 3x multipliers, for official 2x50mhz or 3x33mhz speeds.

Re: The good old and glorious 486 DX 50 - and - rant against 25 MHz buses in the Pentium era

Posted on 2018-12-17, 15:15

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The speed difference between 486s from AMD and intel appears only at dx4 level. The dx2 66s are pretty much equal. AMD's dx4 is probably just a faster version of their dx2 while intel seems to have made some improvements. As for the bus speed, remember results I show are video games. They should be …

Re: The good old and glorious 486 DX 50 - and - rant against 25 MHz buses in the Pentium era

Posted on 2018-12-17, 07:55

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Aries-mu, it is important with a limited set of data to not jump to conclusions too quickly. Else you can prove anything you want :) The difference between the two dx4s here is not only 8k vs 16k, but also intel Vs AMD. At same cache quantity, intel's is already quite faster than amd's. As for the …

Re: The good old and glorious 486 DX 50 - and - rant against 25 MHz buses in the Pentium era

Posted on 2018-12-16, 23:48

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Something like that ? Filename 486.png File size 52.19 KiB Views 3481 views

Re: The World's Fastest 486

Posted on 2018-12-11, 21:27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's funny I had the same rules and started with an idx4 as target. Now I'm going to end up with a 5x86. I can never stop hehe.

Re: AMD DX5-160, Asus PVI-486SP3 desktop system

Posted on 2018-12-11, 21:04

in Marvin \ System Specs

in Marvin \ System Specs

amadeus777999 wrote: "sunaiac", did you disable the 2nd level cache when running 66mh? On slower settings it seems to only bog down systems driven by a high fsb. Nope tried to have comparable setups.

Re: AMD DX5-160, Asus PVI-486SP3 desktop system

Posted on 2018-12-11, 21:02

in Marvin \ System Specs

in Marvin \ System Specs

Tuned is highest stable BIOS settings for the given CPU. Can be variable. Feipoa bits is using the cyrix enhancement he used in his Ultimate 486 bench as far as I remember. @feipoa: I totally don't remember haha

Re: The great Pentium Pro haul of 2018

Posted on 2018-10-22, 07:19

in Milliways

in Milliways

Where ?

Re: The great Pentium Pro haul of 2018

Posted on 2018-10-20, 17:17

in Milliways

in Milliways

Wow. Just wow. One of my hen's teeth haha

Re: Slot A FIC SD11 Dumpter find

Posted on 2018-10-20, 06:39

in Marvin \ System Specs

in Marvin \ System Specs

That's cool. I'll try to find one for my collection.

Re: Slot A FIC SD11 Dumpter find

Posted on 2018-10-19, 19:26

in Marvin \ System Specs

in Marvin \ System Specs

What was that modified athlon ?

Re: Average PC Specs for Low, Medium, and High-End PCs of late 1998 - early 1999

Posted on 2018-10-18, 07:31

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought a PC in august 1998 : - Intel Pentium II 333 - 440LX motherboard - 64 MB RAM - sound blaster vibra 16 - Intel 740 Gfx - 15 inch screen - 32X CDROM IDE - 6.4G HDD IDE - floppy for 7000frs (around 1100€ without inflation), so more low-mid end (CPU offered at that time were celeron 266/300 …

Re: What's your home/everyday PC?

Posted on 2018-10-18, 07:27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

btw this topic is a doppleganger of one in "system specs"

Re: Cyrix 5x86-133GP a unicorn?

Posted on 2018-10-18, 07:25

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well appart for the 980X, those CPU boxes are not too big. The problem is more on the Videocard and motherboard side. Also the consoles. It's starting to crawl outside the cupboards here. Got 3 MSI lightning boxes at my feet haha (580GTX, 6970, 7970), as well as a sega saturn and a xbox 360 ... My …

Re: Is This 40mm CPU Fan Good Enough

Posted on 2018-10-18, 07:02

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Doesn't the 60mm noctua fit on a 50mm HS ? I think it has 50mm space between screws.

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