dukeofurl wrote on 2026-04-15, 11:04:

I should add that I was able to increase the fsb with softfsb. According to the program, the machine will switch up to a max of an 80mhz fsb. I read about how this will probably give issues to peripherals due to the pci and agp buses running too fast, but when I tried it out for an hour or two, I didn't encounter any crashes or other unusual issues.

Did you test HDD transfers too?

I didn't benchmark or stress test, but for regular use such as copying files over to the HDD to run them, windows using a swap file in the background, etc I didn't notice an issue.

Disruptor wrote on 2026-04-15, 03:47:

Basically the LX chipset is limited to 66 MHz. The EX chipset is the low cost variant with just 2 DIMM slots. Intel repeated tha […]
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dukeofurl wrote on 2026-04-01, 16:54:

I recently got one of these inside an OEM PC. It currently has a pii 266 and a pci ati 3d rage pro. I'd like to upgrade it to increase the capabilities.

The board seems limited to a 66mhz fsb and as far as I've read, it is likely that it provides a non adjustable 2.0 v for cpus. I think the bios is also likely to be too early to support coppermine cpus, so I'm thinking the reasonable price best performance CPU I could run on this would be a 533 Mendocino celeron in a slocket. I'm new to messing around with slot 1, but my thought is I should just be able to get a cheap slocket without any jumpers as the CPU should take the same fsb and voltage that the motherboard already provides for the piis. Does that sound right?

I think upgrading the GPU would be very helpful for playing games. Conventional wisdom is that an agp GeForce card like a GeForce 2, would probably be the best bang for my buck, but as I research this board, I've seen comments that it is one of the earliest boards with an agp slot and may have issues with certain cards that draw more power than others. Nvidia was also cryptically mentioned in ancient forum posts as a manufacturer whose cards may have issues with the agp slot. Before I buy a card, does anyone have 2 cents on this matter? Should I just get a pci version to avoid this potential incompatibility?

Basically the LX chipset is limited to 66 MHz. The EX chipset is the low cost variant with just 2 DIMM slots. Intel repeated that with the BX and ZX chipset for 100 MHz.
I use this for my Covington troll build.

Intel "Covington" Celeron 300 MHz
64 MB RAM (2x 32 MB)
ATI Rage 128
40 GB HDD
Sound Blaster 16
3Com 3c905
Windows 98 SE

I had an lx with a 300 celery , it did have a 75mhz FSB but wasn’t stable

I've been pricing components for a new CPU. I mostly see slockets coming as bare boards. Do I need to buy a separate part to use as a surrounding cartridge to have it stay solidly in the socket, or is that optional?

If I'm doing slocket to 500mhz socket 370 celeron, do I need a heat sink or could I just clip a CPU fan on and call it a day?

dukeofurl wrote on 2026-04-18, 18:33:

I've been pricing components for a new CPU. I mostly see slockets coming as bare boards. Do I need to buy a separate part to use as a surrounding cartridge to have it stay solidly in the socket, or is that optional?

If I'm doing slocket to 500mhz socket 370 celeron, do I need a heat sink or could I just clip a CPU fan on and call it a day?

The slot 1 by itself usually holds the slotkets firm enough not to risk them falling out, unless you get really violent with the case =)
And slotkets might not be fully covered like the P2's, but they usually come with small plastic tabs that keep them from rattling around.

Any CPU in a 370 format will need a heatsink and most will also need a fan on top of that.
Some OEM's just used big heatsinks, but they made sure there was airflow from some other fan in the case.

Hmm come to think of it, I guess all the socket 370 fans I see have a built in heat sink, its just the smaller dimensions of the square fan/socket 370 CPU, rather than a giant rectangular heatsink that is the full length of the slot 1 cartridge that I currently have with the pii.

HSF for it are cheap anyway as mounts for Socket 7 and 370 are interchangeable. I'm seeing them for £10 or less.

While Socket 7 processors go up to ~ 25 Watt (except the "overclocked by factory" K6-2 233 with up to 31 Watt), Socket 370 processors may have up to ~ 41 Watt power dissipation.
So please do not use a small Socket 7 cooler for the 15 Watt processor class on a Socket 370 processor with 30 Watt.
You may lookup your specific processor at https://www.cpu-world.com .

By the way, I installed the Geforce2 MX on the 440LX board and it seems to run just fine, haven't noticed any power-related incompatibilities.

I am having some issues running very early direct3D games like Virtua Fighter 1 and 2, and Daytona USA, where either the game won't load at all with the new gpu (VF1 and 2), or will run but with some garbled graphics (Daytona), but later directx games seem to work ok.

440Lx+PII 266???
This was the exact configuration of my second PC almost 30 years ago ( 1998 ).
Man I can say, this is NOT a quite decent motherboard for DIY fun. The best luck of stable FSB could be 75Mhz. The offical bios doesn't support P3 coppermine.
In fact the best cpu I tried was Celeron 500. It's definitely NOT a fun motherboard.

On the other hand, it could be a good later DOS platform. The PII 266 is not multiplier frequency locked. Therefore underclocking to avoid the Runtime erre 200 issue is possible.

quigonhu wrote on 2026-04-22, 08:54:

440Lx+PII 266??? This was the exact configuration of my second PC almost 30 years ago ( 1998 ). Man I can say, this is NOT a qui […]
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440Lx+PII 266???
This was the exact configuration of my second PC almost 30 years ago ( 1998 ).
Man I can say, this is NOT a quite decent motherboard for DIY fun. The best luck of stable FSB could be 75Mhz. The offical bios doesn't support P3 coppermine.
In fact the best cpu I tried was Celeron 500. It's definitely NOT a fun motherboard.

On the other hand, it could be a good later DOS platform. The PII 266 is not multiplier frequency locked. Therefore underclocking to avoid the Runtime erre 200 issue is possible.

Its a Gateway OEM pc, in case you had a similar one. It seems pretty good for 90s Win9X games, though I think it could run into trouble with 3D gaming from 1999 and beyond with the lack of PIII support.

dukeofurl wrote on 2026-04-22, 19:56:

quigonhu wrote on 2026-04-22, 08:54:

440Lx+PII 266??? This was the exact configuration of my second PC almost 30 years ago ( 1998 ). Man I can say, this is NOT a qui […]
Show full quote

440Lx+PII 266???
This was the exact configuration of my second PC almost 30 years ago ( 1998 ).
Man I can say, this is NOT a quite decent motherboard for DIY fun. The best luck of stable FSB could be 75Mhz. The offical bios doesn't support P3 coppermine.
In fact the best cpu I tried was Celeron 500. It's definitely NOT a fun motherboard.

On the other hand, it could be a good later DOS platform. The PII 266 is not multiplier frequency locked. Therefore underclocking to avoid the Runtime erre 200 issue is possible.

Its a Gateway OEM pc, in case you had a similar one. It seems pretty good for 90s Win9X games, though I think it could run into trouble with 3D gaming from 1999 and beyond with the lack of PIII support.

Well, it seems you have a much better GPU than I used to have, I would say you'll get a lot of fun on many mid 90s win9x games.
I highly recommend to do a little overclocking if you're not going to replace the original CPU, try 300MHz, then you'll get a quite decent FPS on the Connectix Virtual Game Station.

quigonhu wrote on 2026-04-22, 08:54:

On the other hand, it could be a good later DOS platform. The PII 266 is not multiplier frequency locked. Therefore underclocking to avoid the Runtime erre 200 issue is possible.

Multiplier locked or not depends mostly on production date. Though a Klamath 266 is most likely old enough to be unlocked, though.