SATA Hard Drives: UDMA 5 when it should be 6 or 7??

[Guest]

Hi there,
I'm a relative newcomer to Vista 64 Bit Home Premium, but a long timer to
PC's and various O/S's.
Anyway, I have an issue with Vista Home Premium 64 in that it will not go
above UDMA 5 for two of my 3 SATA hard drives. One of these will apparantly
support UDMA 7 (according to the spec sheet and HD Tune 2.53). Both should at
least run at UDMA 6 but I simply cannot get them to get there.
The motherboard is a Gigabyte 965P DS3 with the latest BIOS (F12) and
drivers. The Intel chipset (including the ICH8 SATA controller) also has the
latest drivers installed.
Any ideas anyone?

 

[Guest]

UDMA means nothing to SATA drives. It is a hold over from IDE. SATA drives
either run at 1.5 or 3.0 Gbs. (SATA or SATA II)

 

[Michael Palumbo]

UDMA means nothing to SATA drives. It is a hold over from IDE. SATA drives
either run at 1.5 or 3.0 Gbs. (SATA or SATA II)

Paul is correct.

On some system boards the SATA controllers are identified as IDE controllers
for compatibility with older operating systems, however, the SATA drives
will still run at their top speed(s).

My board has an ICH5 and my drives all report they are capable of UDMA 7 but
are running UDMA 5 . . . as the ICH5 is only capable of 1.5 GBS I expect to
see about 50 to 70 MBS sustained throughput (and I do using HD Tune) with a
burst of anywhere from 100 to 130 MBS (and I do) so it's all good.

Mic