486 (Socket 3) mobo w/ PCI wanted

Discussion relating to Socket 7 hardware.
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KenB
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486 (Socket 3) mobo w/ PCI wanted

Post by KenB »

I made this same post on ocforums.com, just FYI.

That's right! An OLD 486 board that supports an AMD 5X86 133Mhz CPU is wanted. CPU does NOT have to be included (although that would be cool).

I used to have an old ASUS PVI-486SP3, it had a SIS chipset, 3 PCI slots, a VLB slot and 3 or 4 ISA slots. It was pretty kickass.

I'm building an old nostalgia/project system, and I would love to assemble my old first-system-I-ever-built, again, just for fun (my system actually had a Cyrix 5x86 120mhz on it).

I have seen this very board on ebay for something like $300, which is totally ridiculous. I don't even know who would buy such a board at that price now.

And no, I'm not trying to resell it. I would pay about $15 bucks if anyone has one. Or you can list your price.

I've recieved offers for RAM and CPU's, but so far, having a hard time finding a comparable board.
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Last edited by KenB on Thu Jun 26, 2008 1:39 am, edited 1 time in total.
Jim
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RE: 486 (Socket 3) mobo w/ PCI wanted

Post by Jim »

I have a 286 board, (used), and 2 brand new, (unused) pentium Pro boards, but that seems to be all I have that is older than socket 7. I thought I had a socket 3 floating around, but can't find it.
Superpuppy 3
K6-3+ 450 ACZ (6x100)
DFI K6BV3+/66 Rev B2 (2 Meg) w/ 2x28mm Chipset Fans
2x256 Meg PC 133 Hynix SDRAM
1x 20G Maxtor (7200)
2x 80G Maxtor (7200) Ducted w/ 2x486 Fans Mount
52/24/52/16 LG CDR/RW/DVD
8/4/3/12/24/16/32 LG Super Multi
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CMD 649 IDE Controller
NEC USB 2 Card
KenB
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Post by KenB »

Hi Jim,

I always wanted to build a dual PPro 1MB cache system. But I have this 486 setup to work on yet, so I'll have to pass on that board for now. Thanks for the offer though! I'll keep it in mind. What board is it, by the way?
Jim
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Post by Jim »

The boards, (plural), are QDI. They are not "Dual Pentium Pro" but rather singles, I have two of them left over from the four ton truck load of stuff I got from QDI. The boards have 4 major chips on them labled as follows :

1)
NS9624GJ
PC87306-IBE/VUL
95 AM MEGATRENDS
NSC 1994

(NOTE : This does NOT look like a bios chip, but more like a chipset chip).

2)
INTEL
PCI SET
SB82441FX
L6253842
SUO53
INTEL 95

3)
INTEL
PCI SET
SB82371SB
L6272155
SUO93
INTEL 95

4)
INTEL
PCI SET
SB82442FX
L6243563
SUO54
INTEL 95

Don't ask me what they are cause I don't know.
The boards have 2 documented FSB settings, 60 Mhz & 66 Mhz, with 14 possible other undocumented settings, (4x open / closed jumpers set the FSB). They also have documented multiplier setttings for 2x, 2.5x, 3x, 3.5x, & 4x with 11 possible other undocumented settings, (4 other open / closed Jumpers set the multiplier).

Though I have two of these boards, (both unused), I only have 1 of the riser cards used with them. See Photos.

You want them, you can have them, for the cost of shipping.

Image

Image
Superpuppy 3
K6-3+ 450 ACZ (6x100)
DFI K6BV3+/66 Rev B2 (2 Meg) w/ 2x28mm Chipset Fans
2x256 Meg PC 133 Hynix SDRAM
1x 20G Maxtor (7200)
2x 80G Maxtor (7200) Ducted w/ 2x486 Fans Mount
52/24/52/16 LG CDR/RW/DVD
8/4/3/12/24/16/32 LG Super Multi
ATI 9000 aiw Radeon AGP
SB Audigy 1 MP3 Sound
CMD 649 IDE Controller
NEC USB 2 Card
KenB
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Post by KenB »

Hi Jim,

I PM'd you.

Thanks. :)
KenB
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Post by KenB »

I guess I should reply for anyone who reads this thread that I'm still mainly interested in building the 486 system. Right now, a mobo is the main need. Everything else I can get pretty easily, but higher end 486 boards are very slim to come by. Ones I'm looking for have VLB and PCI slots, as well as traditional ISA. ASUS was the brand I once had and that would be a great find, although I suppose I won't be able to be too picky.
DonPedro
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Post by DonPedro »

well,

have you tried to find some member of the gigabyte 486 motherboard family?

e.g. ga-486im: 4 isa 4 pci 2 vl slots
according to the manual the amd x5 is not listed as supported, but I think that is due to the manual being print before the cpu came into existence

I had once a ga-5486al mainboard. really fast and very stable (even under win95). today I could bite my bottom that I gave it away many years ago just like this .... according to its manual I learned this minute that cyrix also had an x5 cpu: Cx5x86-133 and this cpu according to the test results given in the manual was a house and street faster than the good old amd x5! I am a little bit shocked to learn that now ...
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jsc1973
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Post by jsc1973 »

I may have an old 486 mobo with PCI on it. I'll check when I get home tonight, and if I do, I'll post the information here.
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Compaq Presario 1273, AMD K6-III+ 450@400MHz 1.8v, 40GB Samsung 5400RPM, extremely hacked Win98SE, 288 (yes, 288!) MB RAM
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jsc1973
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Post by jsc1973 »

I have a 486 board with PCI and a 486 board with VLB, but unfortunately, I don't have anything with both.

If you once had a 486 board that could power a Cyrix 5x86 without trouble, then you had a nice board in its day. Most boards either went haywire on one, or they disabled all its high-performance features and left you with the equivalent of a gelded Pentium OverDrive. Unless I knew it worked, I always recommended the AMD 5x86, which was just a fast 486 with a larger cache.
FIC VA-503+, Rev. 1.2, AMD K6-III+ 450@550MHz, 80GB Seagate ATA-100, 3dfx Voodoo3 3500 TV, TB Montego II Quadzilla, Win98se, 384MB PC100

Compaq Presario 1273, AMD K6-III+ 450@400MHz 1.8v, 40GB Samsung 5400RPM, extremely hacked Win98SE, 288 (yes, 288!) MB RAM
(Also an AMD FX-8350, which does the heavy lifting these days...)
KenB
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Post by KenB »

Hi jsc,

I'm interested. Can you tell me how many PCI slots it has, or the model or manufacturer? Will it take 72pin RAM?

I actually have an overdrive that someone gave me, and I just got an AT power supply and case along with some 72pin RAM and video card, so I am close to getting it completed. Just need a board.

Thanks!
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swaaye
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Post by swaaye »

Boards with both VLB and PCI usually gimp PCI by attaching it to VLB somehow. I have a MSI 486 mobo with PCI. It works pretty good and supports every Socket 3 CPU under the sun, but PCI performance is not that great. Bus mastering doesn't really work, for example. I think it may be PCI bridged to VLB because apparently the onboard IDE is VLB based (I use a Promise Ultra 66 on it tho).

You also have to remember that PCI bandwidth is the same as the entire bandwidth the CPU bus and RAM has. :) So, PCI performance just can't really be all that great no matter what.

I actually ran a Voodoo3 on that board once. I had to run some old drivers because apparently newer drivers require some Pentium instructions and would crash unless I used the Pentium Overdrive. What was interesting was that the Pentium Overdrive @ 100 MHz (oc) was fastest for 3D games, but the AMD 5x86 160 was definitely quicker for other apps. The board's L2 cache doesn't get along with the Pentium Overdrive and so performance suffers in general. But that Pentium FPU is a monster compared to 486 hardware. Cx5x86 @ 120 was slower than Am5x86 @ 160 too. The Cyrix chip was better per-clock than the AMD chip, but 40 MHz made up for it and the fact that 5x86 is just a 486 means it's more compatible with things in general.
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