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486dx

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jees, now i feel dumb, making a 486 into a router, no HDD!:confused: , man im way out classed, all i know how to do on my pc is look up porn and frag like crazy, oh ya i used to have an AST too, i still use the AST monitor that came with it! it its 17inches and works great, though its a bit dark, but what do you expect, its 7 years old!, i bet a blue orb would keep that 486 nice and cool
 
"The only 486s I saw that did not use a heatsink at all were the 486 SXs, which did not have a math co-processor. Anything that was 50MHz and up usually had a heatsink and fan."

hah! I have like four of those....couple of 486dxs, a 386, and a 486 laptop....its an underpowered army!
 
No HDD? I have yet to see how this will work... (Boot Win 95 off floppies!?)

I have a 486-75 motherboard, which likes the SIMMS in pairs.

But if you do something it doesn't like with the ram, then it'll not post, so just whack the RAM in and see what happens. Come on - you're dealing with a 486... it won't matter if sparks fly (Well, it might, but sparks are cool :cool: )

An Athlon HSF will do very nicely - I think the 486 can withstand 90c of heat - it'll take a fair OC to get it anywhere near that, even without a HSF, so you will be fine.

Have fun!

(BTW - I also have a P133, which had no fan on its heatsink, but the Proc was located where the ATX Battery/southbridge/cmos (near there :D) is located, and therefore had the case fan blowing over it.

I turned off the case fan, and the thing got too hot to touch, so on went the fan again...)
 
Isn't there a Linux distro which fits entirely onto a 1.44mb floppy?

dude, I put linkies to two of them in my last post :rolleyes:

Coyote linux is a cut-down linux distro that fits entirely on a floppy. It runs entirely from RAM, and can't even be installed on a hard drive (the distro doesn't include IDE drivers). It looks to be a REALLY easy to use firewall setup.

Freesco is another. Although this one CAN be installed on a hard drive, why would you? If it can fit on a floppy, and run completely from RAM, a HDD just adds noise to the equation, and no way am I wasting a HDD on this project. Looks to be a bit more powerful than coyote. It's another linux firewall distro, also includes print server and a few other functions.

There are several others out there.

I'll let you guys know how it turns out. It will be a while, though...I'm bidding on an ISA NIC on ebay (current bid is 0.99 USD...new in box!).

Disclaimer: I am by NO means a linux guru, I know absolutely nothing about this stuff except for the little bit of info I've read online while researching what the hell I could do with this old 486.

edit: corrected my linkies :eek:
 
Last edited:
gahdzila said:


dude, I put linkies to two of them in my last post :rolleyes:

Coyote linux is a cut-down linux distro that fits entirely on a floppy. It runs entirely from RAM, and can't even be installed on a hard drive (the distro doesn't include IDE drivers). It looks to be a REALLY easy to use firewall setup.

Freesco is another. Although this one CAN be installed on a hard drive, why would you? If it can fit on a floppy, and run completely from RAM, a HDD just adds noise to the equation, and no way am I wasting a HDD on this project. Looks to be a bit more powerful than coyote. It's another linux firewall distro, also includes print server and a few other functions.

There are several others out there.

I'll let you guys know how it turns out. It will be a while, though...I'm bidding on an ISA NIC on ebay (current bid is 0.99 USD...new in box!).

Disclaimer: I am by NO means a linux guru, I know absolutely nothing about this stuff except for the little bit of info I've read online while researching what the hell I could do with this old 486.


D'OH!

I didn't look at the links - does that make it OK?
 
It is nice to see that someone is doing the same thing as me. I have an old 486dx mobo that I am putting Freesco on. The nice thing about the 468dx chip is that they are almost bulletproof. you can get them burning hot without a stability problem. You can also use almost any chunk of metal that you find as a heat sink. I have a northbridge cooler on mine. No fan.

I would use freesco as an os, it seems to be constructed better with more features and is easier to use.

The most difficult thing is NICs. I have some 3Com EtherLink III cards. If you can get some, USE THEM, they are deffinatly worth it because they are the only card that Freesco can read the setting off of.

Speaking of setting, rember that you don't have plug and play. If you use the 3Com cards like me, there is a program that you can download to configure the cards. Copy the program onto a dos boot disk, boot, and run. You might want to jot down the settings and the MAC address while you are programing the cards. You can only have one card in the computer at a time while configuring, so you will have to do some swaping to get all of the cards.

Now if I could just get my mobo no ignore the fact that there is no HDD installed...
 
woohoo!

I thought for a while I was the only lunatic in the world trying this.

Yeah, I heard good things about the 3com cards. I bought one on ebay, and I've got one that I'm bidding on now (auction ends tomorrow...new in box, according to the seller...currently 0.99 USD!)

I was planning on using freesco, as it also has print server functions, which I would like to try out.

About the setup program for the 3-com NIC's...yeah, I got my first NIC installed, set it up with 3-com's setup program without any problems. I put DR-DOS on an extra hard drive I had to make it easier to configure the NIC's.

You can only have one card in the computer at a time while configuring

That I did not know. Thanks for the tip.

Now if I could just get my mobo no ignore the fact that there is no HDD installed

mine didn't seem to mind.

Have you got your router up and running yet? I'd like to see your specs, and hear how it's working out for you.

I've got a 486dx-2...?proprietary motherboard, built by AST?...8 MB of RAM (although I've got some more I can add, if needed)...1 gig HDD (with DR-DOS right now...I plan to remove the hard drive when I get the router up and running)
 
my mobo is a leftover from a dell 466t. I still have the case, but server is in it. 16mb RAM. I think that if i could get into the BIOS, I could tell it that there is no HDD installed. Now it just gives a HDD controller error. I have tried to plug a HDD up to the mobo, but it cannot detect the drive. I forgot about the print server. I should look into that. No the router is not up yet. I am going to take a tile out of my ceiling and put it up there with my cable modem. Maby some plexeglass to protect it.
 
update!

Thanks for the help, guys.

I found a smallish black aluminum heatsink...possibly from an old pentium or so. Anyway, I mixed up some glue (one-third "5 minute two-part epoxy", one-third Radio Shack thermal paste, one-third Arctic Alumina thermal grease...I've used this mixture before, it works quite nicely) and glued this heatsink to the 486dx-2. I'm running the heatsink passive, without a fan. Seems to be working fine, the heatsink gets only slightly warm to the touch, and the proc is running 24/7, completely stable.

I ended up installing coyote linux. It's EXTREMELY easy to use...I've got VERY little experience with linux, and I didn't have any trouble with it. I'd recommend it to anyone working on a project like this.

After installing some firewall rules that I found here, on [url]www.routerdesign.com,[/URL] every online port scanner that I've tried shows my network to be completely invisible...and that's with windows file/print sharing on!

Thanks for the help, guys
 
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