UDMA and DOS

garfield · Feb 13, 2003, 04:22 AM

I have had Athlon based computers in the past with usually Soyo Motherboards. My last was a XP-1700+ with a Dragon Plus Motherboard. I decided to try a P4. I got a 2.4b and an Albatron PX845PEV Pro motherboard. I noticed that the P4 system loaded Windows XP and little quicker (35 sec.) and also shut down quicker (15 sec.), but I chalked it up to faster Clock and memory.

Then I backed up the system with Drive Image 2002 and was shocked when it completed in less than 4 minutes with a speed of more that 500 Mb/min. I restored the image in less than 2 minutes at better that 1Gb/min.

On the old system I was lucky to get less than 15 minures or 150 Mb/min either way.

I conclude that the PX845PEV must be actually using UDMA-100 where as the Soyo Dragon Plus must be operating at UDMA-33 or even at PIO-4.

The difference must be in the bios.

My question for users of other brand motherboards is: Does your bios use maximum transfer rates or default ones on low level (DOS) operations?

Feb 13, 2003, 04:22 AM	#1
garfield DriverHeaven Junior Member Join Date: Jul 2002 Location: Oklahoma Posts: 35 Rep Power: 0	UDMA and DOS I have had Athlon based computers in the past with usually Soyo Motherboards. My last was a XP-1700+ with a Dragon Plus Motherboard. I decided to try a P4. I got a 2.4b and an Albatron PX845PEV Pro motherboard. I noticed that the P4 system loaded Windows XP and little quicker (35 sec.) and also shut down quicker (15 sec.), but I chalked it up to faster Clock and memory. Then I backed up the system with Drive Image 2002 and was shocked when it completed in less than 4 minutes with a speed of more that 500 Mb/min. I restored the image in less than 2 minutes at better that 1Gb/min. On the old system I was lucky to get less than 15 minures or 150 Mb/min either way. I conclude that the PX845PEV must be actually using UDMA-100 where as the Soyo Dragon Plus must be operating at UDMA-33 or even at PIO-4. The difference must be in the bios. My question for users of other brand motherboards is: Does your bios use maximum transfer rates or default ones on low level (DOS) operations? __________________ Windows XP Pro SP2 Pentium 4 2.4B@2880 Albatron PX845PEV Pro Corsair CMX512-3200C2@400 All-in-Wonder 9000 2 - 200GB WD HDDs 16x DVD Rom ND-1100A DVD Burner 350W PS Last edited by garfield; Feb 13, 2003 at 06:42 AM.