Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)
I bought a Tecwind "Thunder-X" 5.25" USB 2.0 enclosure which I would
like to eventually use for a DVD burner. I decided to do some testing
first with a hard disk in the case (Maxtor DiamondMax+9) to see how it
performs. Unfortunately, on my MSI KT3-Ultra2 I cannot get the external
disk to write at more than 6.5 MB/sec with USB error detection disabled,
and only about 3.5 MB/sec with error detection enabled. I'm not sure if
this indicates a problem with the USB controller on the motherboard (Via
KT-333, I have read that Via's USB is not the greatest), or with the
USB-IDE bridge in the external case. If anyone else has the same case,
can you comment on what kind of transfer rates you get with it?
Archived from groups: comp.sys.ibm.pc.hardware.storage (More info?)
One more thing - it seems that only the write performance is this bad.
Reading files off the USB disk is much faster, up to 16 MB/sec or more.
There does not seem to be any way to enable the write cache on the
external drive, but I wouldn't expect that to be a bottleneck compared
to the relatively low USB throughput.
kalabp wrote:
> I bought a Tecwind "Thunder-X" 5.25" USB 2.0 enclosure which I would
> like to eventually use for a DVD burner. I decided to do some testing
> first with a hard disk in the case (Maxtor DiamondMax+9) to see how it
> performs. Unfortunately, on my MSI KT3-Ultra2 I cannot get the external
> disk to write at more than 6.5 MB/sec with USB error detection disabled,
> and only about 3.5 MB/sec with error detection enabled. I'm not sure if
> this indicates a problem with the USB controller on the motherboard (Via
> KT-333, I have read that Via's USB is not the greatest), or with the
> USB-IDE bridge in the external case. If anyone else has the same case,
> can you comment on what kind of transfer rates you get with it?
>
> Thanks,
> Peter
