- Joined
- Aug 10, 2003
- Location
- UK
For some reason, my HDDs don't seem to be running in their highest UDMA mode.
I've just built a new computer with Windows XP and an Asus P4C800E, with two hard drives: a new Raptor on the non-RAID SATA controller (the RAID controller is disabled), and an old Quantum Fireball LM 10Gb drive on the PATA controller. There is also a CD-RW/DVD-ROM drive on the other PATA controller.
In the BIOS, the Raptor reports a maximum UDMA rating of "6" (isn't that UDMA133?), but in Device manager, and on the system report screen before the OS boots, it reports UDMA 5 (UDMA100).
The Quantum, in the BIOS, reports a maximum UDMA of 4 (UDMA66, yes?), but in Device Manager, it reports using UDMA2 (UDMA33). The CD-RW/DVD-ROM drive correctly reports UDMA2. In order to get the computer to boot from my SATA raptor, I have had to disable the Quantum in the BIOS: Windows still recognises it, though. When I don't disable the Quantum in the BIOS, it reports UDMA4 on the BIOS report screen (I think), but tries to boot from it (it doesn't have a boot sector).
I've looked at Quantum's tool which limits the drive to UDMA33 (I may have used this before), and used it to reset the drive to UDMA66, but with no luck.
I'm concerned, because Sandra reported the Quantum as being slower than a 5,400RPM drive: it's a 7,200RPM drive.
Does anyone have any ideas as to how this problem might be resolved?
I've just built a new computer with Windows XP and an Asus P4C800E, with two hard drives: a new Raptor on the non-RAID SATA controller (the RAID controller is disabled), and an old Quantum Fireball LM 10Gb drive on the PATA controller. There is also a CD-RW/DVD-ROM drive on the other PATA controller.
In the BIOS, the Raptor reports a maximum UDMA rating of "6" (isn't that UDMA133?), but in Device manager, and on the system report screen before the OS boots, it reports UDMA 5 (UDMA100).
The Quantum, in the BIOS, reports a maximum UDMA of 4 (UDMA66, yes?), but in Device Manager, it reports using UDMA2 (UDMA33). The CD-RW/DVD-ROM drive correctly reports UDMA2. In order to get the computer to boot from my SATA raptor, I have had to disable the Quantum in the BIOS: Windows still recognises it, though. When I don't disable the Quantum in the BIOS, it reports UDMA4 on the BIOS report screen (I think), but tries to boot from it (it doesn't have a boot sector).
I've looked at Quantum's tool which limits the drive to UDMA33 (I may have used this before), and used it to reset the drive to UDMA66, but with no luck.
I'm concerned, because Sandra reported the Quantum as being slower than a 5,400RPM drive: it's a 7,200RPM drive.
Does anyone have any ideas as to how this problem might be resolved?