for long term usage without overclocking, go with dfi k6bv3-66 or fic va503.
for record setting extreme overclocking, go with gigabyte 5aa or asus p5a-b.

noshutdown wrote:

for long term usage without overclocking, go with dfi k6bv3-66 or fic va503.
for record setting extreme overclocking, go with gigabyte 5aa or asus p5a-b.

Thank you, I will research them all. Do you have any thought on mb-m575 type motherboards?

The Turbo button doesn't do anything on Pentium motherboards as far as I know.
There are some rare socket 7 boards with a turbo header I think, maybe someone else
here has used one and can comment on whether it works or not.

You can turn off caches to emulate a 486 down to 286 speeds though. Not XT.

Imperious wrote:

The Turbo button doesn't do anything on Pentium motherboards as far as I know. There are some rare socket 7 boards with a turbo […]
Show full quote

The Turbo button doesn't do anything on Pentium motherboards as far as I know.
There are some rare socket 7 boards with a turbo header I think, maybe someone else
here has used one and can comment on whether it works or not.

You can turn off caches to emulate a 486 down to 286 speeds though. Not XT.

The motherboard Im looking at, accorinding to docs, has a turbo LED jumper. Though it dosnt mention anything beyond that. <- seems that it will light the LED all the time only.

Imperious wrote:

The Turbo button doesn't do anything on Pentium motherboards as far as I know. There are some rare socket 7 boards with a turbo […]
Show full quote

The Turbo button doesn't do anything on Pentium motherboards as far as I know.
There are some rare socket 7 boards with a turbo header I think, maybe someone else
here has used one and can comment on whether it works or not.

You can turn off caches to emulate a 486 down to 286 speeds though. Not XT.

i feel that a 486 board with 486dx-25 and isa video card is slow enough already, it runs doom at a stunning 2fps.

Imperious wrote:

The Turbo button doesn't do anything on Pentium motherboards as far as I know. There are some rare socket 7 boards with a turbo […]
Show full quote

The Turbo button doesn't do anything on Pentium motherboards as far as I know.
There are some rare socket 7 boards with a turbo header I think, maybe someone else
here has used one and can comment on whether it works or not.

You can turn off caches to emulate a 486 down to 286 speeds though. Not XT.

I have a 430VX-based motherboard with both turbo_sw and turbo_led pins. The LED works, though I'm yet to make the switch change the frequency.

Are we talking Socket 7 or Super Socket 7?

If Socket 7, I'm voting for the Asus P55T2P4.

Imperious wrote:

The Turbo button doesn't do anything on Pentium motherboards as far as I know.
There are some rare socket 7 boards with a turbo header I think, maybe someone else
here has used one and can comment on whether it works or not.

Tested the turbo function on a GA-586HX. It slows a Pentium 200 MMX down to about Pentium 133 levels. Not really useful. Interesting detail: the manual states not to switch turbo when the system is turned on. It works fine regardless, though.

noshutdown wrote:

i feel that a 486 board with 486dx-25 and isa video card is slow enough already, it runs doom at a stunning 2fps.

There are other games than Doom 😵 Take Test Drive 3 or Wing Commander for example... a 486SX25 is too fast for those.

Since turbo wont do much of anything, should i might as well look into a pentium 2/3 AT mobo? Can those still be alowed down simply by disabling cache?
At that point is there any worth to the parts I already have?

Dunno, depends on what you want.

Socket 7 is awesome for DOS games. A tricked out Socket 7 system is enough for Windows 98 games and early 3d acceleration, but might be underpowered for games from 99 onwards.

Pentium 2/3 is quite a bit faster and suited better for early Windows titles, but can't be slowed down as elegantly as Socket 7 (which is only necessary for older DOS titles, really). Also, it's a lot easier to get Slot 1 mainboards for ATX.

Soundblaster Pro is more suited for 486 era, as are 5 1/4 floppies. To be honest, I don't use mine much, but they're in there for the coolness factor.

i am very interested in playing 486 games. But I'd like to go up to being able to play doom extremely well. is a 200mhz mmx enough for this? Maybe with a board that has a cache expansion slot?

I'm alrady making a 98/XP machine (which is where my PC knowhow starts) so the machine in question doesnt really need to venture in the 98 era of gaming.

What would be the process to slow down a pentium 2/3 for 486 gaming?

goodtofufriday wrote:

But I'd like to go up to being able to play doom extremely well. is a 200mhz mmx enough for this?

Yes, certainly. Anything above a DX4/100 will do this. I'm personally satisfied with Doom on a DX2/66 w/ ISA graphics.

goodtofufriday wrote:

I'm alrady making a 98/XP machine (which is where my PC knowhow starts) so the machine in question doesnt really need to venture in the 98 era of gaming.

Socket 7 would be perfect then.

goodtofufriday wrote:

What would be the process to slow down a pentium 2/3 for 486 gaming?

Lowering FSB, lowering multiplier if possible, disabling caches. Though I've often heard that a P2 with disabled cache will be TOO slow.

oerk wrote:

Lowering FSB, lowering multiplier if possible, disabling caches. Though I've often heard that a P2 with disabled cache will be TOO slow.

Thabks for replying. Always thought doom.needed more.

I found a boarf the has custom bios to allow for a 1.4ghz p3 that is AT form factor. Its has fsb133. Would that be enough to avpid cache disabling becomg too slow?

Exactly, the P2 and P3 perform like a slow 386 with caches disabled, so clock sensitive games from the 486 era will either be too fast or too slow. Caches have much more influence on apparent speed than CPU clock.

I have a P-133 on a FIC PA-2013, TNT2-M64-PCI, 32mb Ram. Disabling cache makes a nice 386/486.
Don't know what to do with it, other than I did the build for the fun of it.
I don't have enough antistatic bags, so I had to put the hardware into a case. Hence the build.

gdjacobs wrote:

Exactly, the P2 and P3 perform like a slow 386 with caches disabled, so clock sensitive games from the 486 era will either be too fast or too slow. Caches have much more influence on apparent speed than CPU clock.

Baring thaylt knowledge, im then torn between the mobo i mentioned in my last post that supports the faster fsb cache
And a socket 7 that supports mmx processors and has ami winbios

brostenen wrote:

I have a P-133 on a FIC PA-2013, TNT2-M64-PCI, 32mb Ram. Disabling cache makes a nice 386/486.
Don't know what to do with it, other than I did the build for the fun of it.
I don't have enough antistatic bags, so I had to put the hardware into a case. Hence the build.

Feel free to share that board with me... 😎

Well the good news is that socket 7 AT boards are often pretty cheap time to time and demand is very low unless it happens to be one of the rare super 7 agp boards. If you are in the states you can very easily bag a board for $15 to $30 unless if you time it right either wise it will cost a bit more.

http://www.ebay.com/itm/Vintage-LARGE-Keyboar … %3D172286542393

http://www.ebay.com/itm/GIGABYTE-GA-585ATV-SO … %3D172286542393

So. socket 7 or the slot1 p3 guys? I want to purchase tonight.

Thanks

Socket 7 hands down as you get a wider range of support and can emulate slower systems so you can enjoy dos games at more appropriate speeds. Slot 1 is more of a pure 9x and xp platform for late 90s and early 2000s games.