I am trying to fit a second HDD into a PC and I am having problems.
I do not know if the motherboard will not take it or there is a setting in the bios or some other restiction.
I have fitted the Western Digital 250GB and when I go to disk management to format/ partition it, it is only showing 128GB.

The PC has a AMD Motherboard with a Athlon 1.24Ghz Processor.
I can not find the motherboard model number to start looking on their site.

Could anybody advise me

whats your OS? 2000 or XP?

My System is XP

XP should see the full 250, I have a 200 and it sees that. Whats our MB? I will see if there is a bios update.

I can not find any model / revision name on the MB or on the start up listings.
It says that it is an American Megatrends and it has tht following information


Bios ID 62-0913-001131-00101111-071595-SiS730S-M810LR

American Megatrends

09/13/02 Bios Date

OEM Sign-ON Release 09/13/2002 S

Chipset SiS 730 rev 2

128Gb is one of the limits for hard disks that you need an update for. I can't remember whether it's a BIOS limit or an operating system limit but, like AphJN says, Windows XP ought to see it all if the BIOS is reporting it correctly.

I've done a search on your BIOS ID (surprisingly useful!) and found that your motherboard is made by ECS and is a K7SEM model. Incidentally, I also see from the BIOS ID that it uses the SiS 730S chipset, which you can probably see for yourself. A bit of trial and error got me to their web site - surprise, surprise, your motherboard bears the famous quality mark "Made in Taiwan" so their web site is http://www.ecs.com.tw.

Here's a nice picture and a few technical details about your board:

http://www.motherboards.org/mobot/mo...s_d/ECS/K7SEM/

Here's the link to the latest BIOS update for your motherboard, which was created just a couple of weeks ago:

http://www.ecs.com.tw/ECSWeb/Downloa...uID=35&LanID=8

Hope that helps