Tom's Hardware: Topic USB 2.0 on Intel 865PERL mobo
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Archived from groups: comp.sys.ibm.pc.hardware.chips,comp.sys.intel (More info?)
On Tue, 20 Apr 2004 15:19:36 -0500, chrisv <chrisv@nospam.invalid>
wrote:
>
>Trying to install the USB 2.0 drivers (from the motherboard's CD)
>results in failure. Experiments using a USB 2.0 flash-drive prove I'm
>not getting 2.0 speeds. BIOS settings to enable high-speed USB look
>to be correct.
What kind of speeds are you getting? Maybe you can test on somebody
else's USB 2.0 system to confirm it? Some sneaky manufacturers claim
their devices are USB 2.0 simply by virtue of having an interface
that's capable of it... but the medium itself isn't fast enough to
give you anything like USB 2.0 speeds.
--
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Archived from groups: comp.sys.ibm.pc.hardware.chips,comp.sys.intel (More info?)
To check that, one has to set the device manager to "Show devices by
connection" mode.
"The little lost angel" <a?n?g?e?l@lovergirl.lrigrevol.moc.com> wrote in
message news:4085fde6.126087828@news.pacific.net.sg...
> On Tue, 20 Apr 2004 15:19:36 -0500, chrisv <chrisv@nospam.invalid>
> wrote:
>
> >
> >Trying to install the USB 2.0 drivers (from the motherboard's CD)
> >results in failure. Experiments using a USB 2.0 flash-drive prove I'm
> >not getting 2.0 speeds. BIOS settings to enable high-speed USB look
> >to be correct.
>
> What kind of speeds are you getting? Maybe you can test on somebody
> else's USB 2.0 system to confirm it? Some sneaky manufacturers claim
> their devices are USB 2.0 simply by virtue of having an interface
> that's capable of it... but the medium itself isn't fast enough to
> give you anything like USB 2.0 speeds.
>
> --
> L.Angel: I'm looking for web design work.
> If you need basic to med complexity webpages at affordable rates, email me
> Standard HTML, SHTML, MySQL + PHP or ASP, Javascript.
> If you really want, FrontPage & DreamWeaver too.
> But keep in mind you pay extra bandwidth for their bloated code
Archived from groups: comp.sys.ibm.pc.hardware.chips,comp.sys.intel (More info?)
On Wed, 21 Apr 2004 14:10:23 GMT, "Alexander Grigoriev"
<alegr@earthlink.net> wrote:
>To check that, one has to set the device manager to "Show devices by
>connection" mode.
Oh... actually I was thinking more of putting a 100MB file on the
flash drive and see how long it takes for the transfer to go through.
If the throughput is only 1Mbps, then it doesn't really matter what
the software or labels say. 
PpP
--
L.Angel: I'm looking for web design work.
If you need basic to med complexity webpages at affordable rates, email me
Standard HTML, SHTML, MySQL + PHP or ASP, Javascript.
If you really want, FrontPage & DreamWeaver too.
But keep in mind you pay extra bandwidth for their bloated code
Archived from groups: comp.sys.ibm.pc.hardware.chips,comp.sys.intel (More info?)
a?n?g?e?l@lovergirl.lrigrevol.moc.com (The little lost angel) wrote:
>On Wed, 21 Apr 2004 14:10:23 GMT, "Alexander Grigoriev"
><alegr@earthlink.net> wrote:
>
>>To check that, one has to set the device manager to "Show devices by
>>connection" mode.
>
>Oh... actually I was thinking more of putting a 100MB file on the
>flash drive and see how long it takes for the transfer to go through.
>If the throughput is only 1Mbps, then it doesn't really matter what
>the software or labels say. PpP
Yeah, that's what I did to test my data transfer speed. Way too slow
for USB 2.0 (a couple minutes to transfer 100MB).
Archived from groups: comp.sys.ibm.pc.hardware.chips,comp.sys.intel (More info?)
On Wed, 21 Apr 2004 17:51:42 GMT, a?n?g?e?l@lovergirl.lrigrevol.moc.com
(The little lost angel) wrote:
>On Wed, 21 Apr 2004 14:10:23 GMT, "Alexander Grigoriev"
><alegr@earthlink.net> wrote:
>
>>To check that, one has to set the device manager to "Show devices by
>>connection" mode.
>
>Oh... actually I was thinking more of putting a 100MB file on the
>flash drive and see how long it takes for the transfer to go through.
>If the throughput is only 1Mbps, then it doesn't really matter what
>the software or labels say. PpP
It varies a lot by the flash USB drive mfr. On a Sandisk Cruzer Mini (USB
2.0) I've seen write speeds which are not that much faster than USB 1.1:
~1.1MB/s; the read speed is much faster: 11MB/s. Sandisk now has their
Titanium USB flash drives which are said to write as fast as 13MB/s. If
you look at their (and other mfr's) info on the early USB 2.0 flash drives,
the specs kinda mumble about actual speeds, especially write speeds.
Rgds, George Macdonald
"Just because they're paranoid doesn't mean you're not psychotic" - Who, me??
Archived from groups: comp.sys.ibm.pc.hardware.chips,comp.sys.intel (More info?)
On Thu, 22 Apr 2004 07:40:57 -0500, chrisv <chrisv@nospam.invalid>
wrote:
>Yeah, that's what I did to test my data transfer speed. Way too slow
>for USB 2.0 (a couple minutes to transfer 100MB).
>
Have you tried the same on a system known to have a working full speed
USB 2.0 connection? The problem as I mentioned before, some
manufacturers are putting USB 2.0 interfaces on media that won't meet
that kind of speeds. There was some review done some time back by some
photography website and showed significant disparity between what
different brands of cards can achieve.
--
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Standard HTML, SHTML, MySQL + PHP or ASP, Javascript.
If you really want, FrontPage & DreamWeaver too.
But keep in mind you pay extra bandwidth for their bloated code
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