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NuclearKitten
09-25-2002, 12:14 PM
Is this command:

hdparm -X68 -d1 -u1 -m16 -c3 -A1 -a24 -k1 /dev/hda

ok for an ATA100 7200 RPM drive, or should I change something?
fancypiper
09-25-2002, 01:04 PM
You probably want the X 69 flag.

If I understand correctly, this is the X flag specifics.

-X 33 ====> Multiword DMA
-X 66 ====> ATA-33 (UDMA2)
-X 68 ====> ATA-66 (UDMA4)
-X 69 ====> ATA-100 (UDMA 5)
CrashTestDummy9
09-25-2002, 01:15 PM
I think youre right Piper , but just enabling the DMA should set it to the highest setting available for your drive . I didnt have to flag it on mine , it was set to UDMA4 automatically on my old Maxtor drive .
Lorithar
09-25-2002, 05:18 PM
This will be fine for the drive, ... do you happen to know if the IDE controller will handle that??

-> ALI 15x3's on some older motherboards claim to support udma66 -- or even udma100 ... but die horrible deaths quite quickly when enabled.
NuclearKitten
09-25-2002, 05:49 PM
Originally posted by Lorithar
This will be fine for the drive, ... do you happen to know if the IDE controller will handle that??

-> ALI 15x3's on some older motherboards claim to support udma66 -- or even udma100 ... but die horrible deaths quite quickly when enabled.

It's an Abit KG7-L if that helps...
Lorithar
09-25-2002, 06:03 PM
That board uses the Via 686b bridge .. which has a controller that with POST 2.4.5 kernels will do UDMA 100 ... the via686 controller driver prior to 2.4.5 will accept the command, but does not correctly handle setting up the UDMA 100 mode...