Re: A8N-E SATA speed
- From: Paul <nospam@xxxxxxxxxx>
- Date: Sun, 28 Oct 2007 00:39:14 -0400
Percival P. Cassidy wrote:
I have an A8N-E motherboard with the latest BIOS (1013, IIRC); it claims to have onboard SATA capable of 3.0GB/sec. I recently added a Seagate SATA drive that also claims to be capable of 3.0GB/sec., but in WinXP+SP2 Hardware Manager the only available transfer modes are 1.5G and PIO.
I installed the latest nForce drivers from the nVidia Web site, but there has been no change in the displayed transfer speed options. When I run the speed test, the sustained speed is little higher than that of an old ATA100 drive in the same machine.
Why no 3.0GB/sec?
Perce
You wouldn't expect the sustained transfer rate to change. SATA 1.5 was
fast enough to handle the sustained rate.
What you would expect to change, would be the burst performance. Find
a utility that can measure that, and give it a try. The only app I've got
here, is HDTach, and the listed burst performance is consistent with the
known hardware limitations of my motherboard. So perhaps you could try
a benchmarking tool like that.
I don't have any SATA drives, so cannot compare to your setup. I have
an IDE boot drive. HDTach shows sustained is 57MB/sec down to 30MB/sec
near the end of the disk. The burst speed (HDTach does read operations)
is listed as 85.4MB/sec. The Intel ICH5R has an 88.9MB/sec limitation
on reads, so HDTach gets pretty close to the right answer in my case.
Burst transfers help fill the cache on the hard drive controller board
a bit faster.
Paul
.
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