What motherboard is this?

[ncovert]

Hi all, I thought I would share an old motherboard... this one's a generic Socket 7 ATX board. No branding on it whatsoever. It has diagrams to show you how to set it up properly, but I don't know how to set it up to accept an AMD K6-2 450Mhz, and am questioning whether it can actually support one... Originally had a Pentium MMX 233Mhz in it.
Pic 1: Overall shot of the board.
Pic 2: Bar code.
Pic 3: Other numbers.
Pics 4-6: Diagrams

[b700029]

Re: What motherboard is this?

What does the BIOS say at the POST screen? Specifically the bottom (or two) lines, which contain the chipset and motherboard revision info.

Also, even if it could run at the 100FSB needed for that CPU, the VRM might not be sufficient.

[mockingbird]

Re: What motherboard is this?

That must have come out of a brand name machine... Check out the all-tantalum caps. That's how they used to make em back in the day.

[ratdude747]

Re: What motherboard is this?

yeah, it may only be socket 7, not super 7.

[Spitz]

Re: What motherboard is this?

Hi all, I thought I would share an old motherboard... this one's a generic Socket 7 ATX board. No branding on it whatsoever. It has diagrams to show you how to set it up properly, but I don't know how to set it up to accept an AMD K6-2 450Mhz, and am questioning whether it can actually support one... Originally had a Pentium MMX 233Mhz in it.

It would need a jumper for a 100m clock to support the 450. Does it have a setting for 100m clock, your picture show the multiplier but does not show the clock speeds.

[Spitz]

Re: What motherboard is this?

Hi all, I thought I would share an old motherboard... this one's a generic Socket 7 ATX board. No branding on it whatsoever. It has diagrams to show you how to set it up properly, but I don't know how to set it up to accept an AMD K6-2 450Mhz, and am questioning whether it can actually support one... Originally had a Pentium MMX 233Mhz in it.

On further checking, the board was made by intel for hp. The correct part # is the 686451-104 number. Still do not know if it will work with the amd k6.

[pfrcom]

Re: What motherboard is this?

Unlikely

Intel branded boards probably don't offer Vcore setting for 2.2v required by a K6 processor

Vcore for Pentium MMX processors is 2.8v

Unless you can ascertain and Google the exact Intel model, and find an enthusiast site with jumper settings for 2.2v

Similar to what you get by Googling "k6 p55t2p4"

[ratdude747]

Re: What motherboard is this?

yeah.

if intel made, it isn't super 7... plain and simple. Intel had no intention of using 2.2v and this never put it in the design.

[b700029]

Re: What motherboard is this?

VRMs weren't as complicated as they are today.

It might not be difficult to get 2.2 instead of 2.8v with a simple voltmod.

Whether there is enough amperage is a different issue.

[ratdude747]

Re: What motherboard is this?

Well, even if you could mod the VRM, you would also need to mod the BIOS most likely... otherwise, it may be like "WTF is a K6-2? ERROR!!!!"

[lti]

Re: What motherboard is this?

Well, even if you could mod the VRM, you would also need to mod the BIOS most likely... otherwise, it may be like "WTF is a K6-2? ERROR!!!!"

My Compaq freaks out when I try to run the preinstalled diagnostics software after putting a 500MHz K6-2 in it. The BIOS doesn't recognize anything better than a K6-2/400, so the diagnostic software sees a K6-2/500 and goes . The board is designed to be used with K6-2s, even though it isn't a Super 7 board.

It should be possible to modify that HP/Intel board to run with a 400MHz K6-2. With that heatsink, you won't have to worry about overheating the voltage regulator if it is modified to produce 2.2V. I have a Gateway "Anigma 586" board that doesn't have heatsinks on any of the voltage regulator components (an IRFZ44N MOSFET and a 10A diode). The modified BIOS is actually the easiest part of the modifications.

[ratdude747]

Re: What motherboard is this?

My Compaq freaks out when I try to run the preinstalled diagnostics software after putting a 500MHz K6-2 in it. The BIOS doesn't recognize anything better than a K6-2/400, so the diagnostic software sees a K6-2/500 and goes . The board is designed to be used with K6-2s, even though it isn't a Super 7 board.

It should be possible to modify that HP/Intel board to run with a 400MHz K6-2. With that heatsink, you won't have to worry about overheating the voltage regulator if it is modified to produce 2.2V. I have a Gateway "Anigma 586" board that doesn't have heatsinks on any of the voltage regulator components (an IRFZ44N MOSFET and a 10A diode). The modified BIOS is actually the easiest part of the modifications.

there is a HUGE difference between CAN and SHOULD.

Can you do it? probably. Should you do it? Maybe, maybe not.

If it were me, I'd toss in a 233mhz MMX and call it a day... it was not designed for the (at the time) non-existant super 7 CPUs.

[mariushm]

Re: What motherboard is this?

It looks like that board has the jumper for the frequency removed, so it only supports 66 Mhz.

The multiplier also shows 1.5x to 3.x but on some Super7 boards, you could set the multimplier to 1.5x and get 3.5x or 4.5x - I had a PC Chips Elpina M577 that did this, if I remember correctly.
That board looks like it does a max of 3.0 x 66 Mhz - I'd say don't bother with it.

[Mad_Professor]

Re: What motherboard is this?

I took one look at the picture and instantly recognized it as an intel board. How weird.

Anyways I can tell you right now that thing won't take a K6-2, not without a bios flash. They may not have a bios for it. I know some S7 boards can take the K6-2 450-600 with a simple bios flash, and updated jumper guide/manual. If this thing is locked at 66, the chipset won't take it. This is true for boards that have edo ram and SDRam slots but also for boards that only can take pc66 SDR. So you're out of luck.

[PCBONEZ]

Re: What motherboard is this?

It's an Intel LT430TX board.
.
An "AA" number is a dead give-away that it's an Intel board.
No, it's not Super-7. - Has TX chipset.
Takes P-90 (non-MMX) to P-233MMX.
.

[ncovert]

Re: What motherboard is this?

On further checking, the board was made by intel for hp. The correct part # is the 686451-104 number. Still do not know if it will work with the amd k6.

Odd, this came out of a Micron PC.

[ncovert]

Re: What motherboard is this?

It's an Intel LT430TX board.
.
An "AA" number is a dead give-away that it's an Intel board.
No, it's not Super-7. - Has TX chipset.
Takes P-90 (non-MMX) to P-233MMX.
.

You're right, it did have a Pentium MMX 233Mhz. I guess it doesn't support AMD K6-x processors

[ncovert]

Re: What motherboard is this?

there is a HUGE difference between CAN and SHOULD.

Can you do it? probably. Should you do it? Maybe, maybe not.

If it were me, I'd toss in a 233mhz MMX and call it a day... it was not designed for the (at the time) non-existant super 7 CPUs.

Yeah, I think I'll do that. Throw in a Pentium MMX 233Mhz, 64Mb of RAM, and a small hard drive, great machine for Windows 95 (with USB support since the board has it) or 98.

[PCBONEZ]

Re: What motherboard is this?

The model number is LT430TX

The AA number is funky on that sticker. It's normally written like AA686451-104
AA stands for "Altered Assembly" and is more or less a build version number.
If (say) they change MOSFETs it will get a new AA number but the "LT430TX Rev.(whatever)" won't necessarily change.
Sometimes the AA number determines what CPU's or RAM are supported.

Sometimes searching the AA number is a good way to look them up.
.

[joshnz]

Re: What motherboard is this?

Great machine for Windows 95 (with USB support since the board has it) or 98.

98SE for usb.