VOGONS


First post, by Rhuwyn

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Found this auction. Claims to be a 486 motherboard, CPU, and memory combo doesn't say the model number but it is ATX form factor..has PCI slots.....screenshot shows a 486DLC Cyrix CPU...but also says it's running at like 318 Mhz.....I am tempted to buy it just to figure out what is what.

http://www.ebay.com/itm/Vintage-486-Motherboa … wkAAOSw3ydV06Y3

Reply 2 of 11, by ODwilly

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I ran across this a couple weeks ago and to me looks like a mis-advertised K6 Compaq or other OEM SS7/S7 motherboard.

Main pc: Asus ROG 17. R9 5900HX, RTX 3070m, 16gb ddr4 3200, 1tb NVME.
Retro PC: Soyo P4S Dragon, 3gb ddr 266, 120gb Maxtor, Geforce Fx 5950 Ultra, SB Live! 5.1

Reply 3 of 11, by ODwilly

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Ah never mind Socket 370 also makes sense 😀

Main pc: Asus ROG 17. R9 5900HX, RTX 3070m, 16gb ddr4 3200, 1tb NVME.
Retro PC: Soyo P4S Dragon, 3gb ddr 266, 120gb Maxtor, Geforce Fx 5950 Ultra, SB Live! 5.1

Reply 4 of 11, by vmunix

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possibly a c3 (centaur) cpu, which is basically a 486 (scalar single pipeline design) with a few 586 instructions, or something like that. It is also possible that the frequency is being reported from the FPU which ran at half speed.

Trailing edge computing.

Reply 5 of 11, by idspispopd

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Centaur/VIA is a good guess because of the Cyrix connection.
The text even says "Socket PGA370".
Can't read the chipset but since it has ISA slots it's probably 440BX. Integrated Rage Pro, not bad for office stuff. That alone would tell that it's not a 486.

Reply 6 of 11, by PCBONEZ

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It's not socket 7 or a 440BX because Intel chipsets didn't have integrated video until the i810.
There is a header between the audio jacks and chipset that is typical of Dell.
.

GRUMPY OLD FART - On Hiatus, sort'a
Mann-Made Global Warming. - We should be more concerned about the Intellectual Climate.
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.

Reply 7 of 11, by saturn

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PCBONEZ wrote:

It's not socket 7 or a 440BX because Intel chipsets didn't have integrated video until the i810.
There is a header between the audio jacks and chipset that is typical of Dell.
.

its a onbord ati rage card. not integrated Intel video...
I'm betting its a OEM board out of a dell or something.

Last edited by saturn on 2015-11-19, 15:33. Edited 2 times in total.

Reply 8 of 11, by BSA Starfire

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Looks like a VIA C3 board on intel chipset to me.

286 20MHz,1MB RAM,Trident 8900B 1MB, Conner CFA-170A.SB 1350B
386SX 33MHz,ULSI 387,4MB Ram,OAK OTI077 1MB. Seagate ST1144A, MS WSS audio
Amstrad PC 9486i, DX/2 66, 16 MB RAM, Cirrus SVGA,Win 95,SB 16
Cyrix MII 333,128MB,SiS 6326 H0 rev,ESS 1869,Win ME

Reply 9 of 11, by PCBONEZ

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saturn wrote:

its a onbord ati rage card. not integrated Intel video...

Yes, I noticed that at first but then forgot after looking all over for a matching image.
That's what happens where you search off-on between doing other things.
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It's an eMachines TriGem FLORIDA-TG.
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http://www.interloper.com/products/product-de … =100481&cat=316
http://www.ebay.com/itm/370999226969
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Funny thing is I have one in the storeroom.
Was in a PC the wife handed down to her niece before I met her.
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It's (supposedly) limited to Celerons and to 533MHz so I had no interest in it.
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GRUMPY OLD FART - On Hiatus, sort'a
Mann-Made Global Warming. - We should be more concerned about the Intellectual Climate.
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.

Reply 10 of 11, by shamino

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I still have some notes from when I had one of these boards several years ago.
In case anybody cares, there's a Trigem BIOS and a hacked version of the Trigem BIOS available for this board. I tried both. I don't know the URL for the Trigem version but I have the file.
For the hacked BIOS, the original site is gone but it's still in archive.org:
http://web.archive.org/web/20091026192027/htt … s/overclocking/
It's near the bottom, under the "BIOS" heading.
The direct url is this:
http://web.archive.org/web/20091026192027/htt … ng/fldalpha.zip

The eMachines BIOS won't let you turn off the splash screen, the Trigem BIOS lets you do that (and also changes the splash screen graphic to a Chinese Trigem logo). I don't know if it's newer. If the eMachines version has a disk size limitation then maybe the Trigem version would fix it.

The hacked version enables a ton of obscure options (maybe it's just clutter) in the ever so loved AMI WinBIOS. Most of them would probably never be used, but one useful thing is it lets you control the RAM timings. It still doesn't let you change the FSB speed.

Reply 11 of 11, by PCBONEZ

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It has a 440LX chipset which only supports a 66MHz FSB.

There was a Florida-TG version and a Florida-TGA version.
They both use the same BIOS.
The only difference is the TGA has one newer version for the sound and super-I/O chips. (Can see it in the manuals.)

You can get the manuals here.
http://www.motherboards.org/files/manuals/125/Florida-TG.pdf
http://www.motherboards.org/files/manuals/125 … Florida-TGA.pdf

I found the Trigem BIOS's here.
http://www.elhvb.com/mboards/TriGem/bios/Flor … datg/index.html
The one marked ____180.exe is dated August 16, 2000. (The latest.)

There was also Florida-C version which has an older ATI chip on it.
Pretty sure that one uses a different BIOS.
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GRUMPY OLD FART - On Hiatus, sort'a
Mann-Made Global Warming. - We should be more concerned about the Intellectual Climate.
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.