Greetings all,

just registered with this forum. Got some info regarding this MS-6553 motherboard. The one I got came from a compaq computer (got it off ebay).

The board WILL power up. I'm using a 400watt power supply and just have the standard 20-pin and the 4-pin 12v connectors in place. I didn't have to use the "special" 2-pin connection next to the ATX power to get it to run.

My problem right now is that the system is running my AMD Athlon 1.0 ghz @ 1.33ghz (133fsb - 266DDR) and I can't seem to change it back, or change the cpu parameters at all. The onboard video works and that's about as far as I've gotten.

If anyone else who's read/replied to this thread knows how to play with this BIOS in particular.....I'd appreciate the help too as I don't want to run my cpu out of spec for too long.

Thanks and hopefully what info I've provided will help.

Results Please

So did any one get an ms6553 to run outside of a compaq case and without a compaq psu

ms 6553 mbo

i have never heard that hp has there own ps i have heard that dell rewires theres i have had an hp machine and when i tried to up grade the cpu it would not post even though the mbo was supposed to support higher i think that they either lock the board down or it did not support the cpu

I have a compaq 6029US with the MS6553 board in it. the power supply was dying so i did the swap out to a new case and power supply. my answer to the 2 pin plug next to the 20 pin power plug is to adapt to 4 pin straight from power supply as this plug energizes the cpu fan circuit. i have had it running in new case for 2 weeks now and no trouble. i eventualy will be putting a new motherboard and have complete new build.

I am having a similiar issue with my son's Compaq PC with the MS-6553 mobo.
I bought a new case with power supply, took the motherboard out of the compaq and placed it in the new case. Everything is setup except for "Power LED, HDD LED, Power SW, Reset" I cannot seem to find out how they are to be placed on this mobo, the combinations I been trying to do is not working. Can anyone help me? Thank you for your time.

Rick is right. I have an older Microstar 6330. It supports only up to an Athlon 1.4ghz. I tried putting a faster chip in it but it wouldn't boot. So I had to put the old one back in. It was manufactured by gateway. The funny thing is the older chip was really solid, heavier, and thicker than the new one. Feels like a fishing weight!

You might want to get on Compaq's website, maybe if you input the serial # of the system where you pulled the board, it could tell you if the CPU is upgradable.

My 6330 doesn't have an HD light. Only a power on light.
And it only supports USB 1.0

BTW- check this link: http://forums.amd.com/index.php?showtopic=2971

They're talking about the same issue. They say this: "For sure, you should be able to upgrade to a Palomino XP2100" you might require a BIOS update.

Ms6553

hi i also have an MS6553 mobo but have found that it is the same board used in other computers S462 AMD Athlon XP K7 Motherboard .....this is the spare part number on my mobo 261671-001 it is also the same as the above s462 pic of this board is at the following link

http://www.alancomputech.com/261671-001.html

also the name tyan came up in my searches
hope this helps
ps if you click on the pick to enlarge it th 2 pin conection next to the atx is the same by the way these pins are white blue wire = fan sink..red white wire = fan cmd