FX-3000 motherboard \ VOGONS

FX-3000 motherboard

Topic actions

First post, by tangles

Posted on 2016-10-26, 02:20

tangles Offline

Rank Newbie

Rank: Newbie
Posts: 4
Joined: 2016-10-24, 22:56

Hi there,

I'm new to the forum so hope I've put this in the right place 😀

I recently picked up a new old toy. It's an Ipex built system with an FX-3000 motherboard (dual socket 386/486 board, but this one only has the socket for 486), 486 SX 25mhz, 8x 1mb of simms, and a trident VGA card. I've added an SB16, picked up an AT keyboard, ordered a serial mouse and am looking around for a suitably-beige CD-ROM drive to add to the mix.

I also have here a Texas Instruments 486 DX2 80. That clock rate seems too high for the board, but I was hoping to get it into the FX-3000 running at 66mhz. Does anyone know if it's OK to run at a lower clock rate?

I've uploaded some piccys of the system here, which I took while stripping it down for a good clean up 😀

-dead link-

Cheers
Tim

Last edited by tangles on 2018-03-27, 23:57. Edited 1 time in total.

Reply 1 of 2, by Brickpad

Posted on 2016-10-26, 03:23

Brickpad Offline

Rank Member

Rank: Member
Posts: 425
Joined: 2014-03-11, 03:25
Location: New Hampshire

That is quite a unique case, and a bit unusual with 6 LEDs. Interesting to see that 2 of them were for two separate hard drives. Not sure what the Aux(illary) LEDs would be for?

Reply 2 of 2, by luckybob

Posted on 2016-10-26, 03:31

luckybob Offline

Rank l33t++

Rank: l33t++
Posts: 5118
Joined: 2009-04-30, 04:43

That is a speed double processor. You mentioned on your site the FSB options are 25/33/40/50/66. So whatever you select, the processor will run at 2x fsb. 486 boards are hit and miss on quality. the origional 486-50 was "rare" because so few boards would run at 50mhz fsb. Long story short, you are going to want to stay with 33 or 40 fsb at most. 50+ will require additional work and likely wont be worth the effort. (faster cache, better ram, etc)

That said, the ti chip is a nice one, if possible attach a small heatsink. Nothing too powerful, but Its something I recommend to everyone.

Also, hello!

*EDIT*

Also Your board is limited to 25mhz fsb only. The clock is zip-tied to the board, it reads 25mhz. That is something that would need to be replaced for any fsb upgrades.

Once men turned their thinking over to machines in the hope that this would set them free. But that only permitted other men with machines to enslave them. - Reverend Mother Gaius Helen Mohiam

Go to top of page Go to top of page

Back to General Old Hardware