-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Richard Fish wrote: > On 11/27/06, Chris Walters <[EMAIL PROTECTED]> wrote: >> showed a write speed as quoted above, and a read speed of about 280 MB >> per second... > > This seems more like the SATA-II interface speed of ~300MB/s... > >> Though the same one reported a read speed of about 900+ >> MB per second for my USB drive (not really possible, since the maximum >> speed for USB 2.0 is about 480 MB / second). > > Yeah, bogus. And remember that 480 is megabits/sec (Mb/s)...actually > more like 60MiB/s maximum throughput (although I have yet to get more > than 29MiB/s from any USB drive). > >> This is very frustrating. At first the drive was quite fast, under >> windows and now it is extremely slow... I asked about this in a windows >> xp pro group, and so far no one is touching it. > > Well I would first poke around in the device manager for the SATA > interface and make sure it is not in PIO mode. Then check the > property pages of the disk and make sure that write caching is > enabled.
Hello Richard, I am beginning to suspect that the quality on those "FreshDevices" is quite low, and will probably remove them. I checked the drive and my IDE/ATAPI drivers - there are exactly two primary channels and two secondary channels. On each of the primary channels is a device in slot 0. The first one is operating in DMA 4 mode (I suspect that this is my DVD-RW drive), while the second one is operating in PIO mode. I couldn't find a way to change that from the device manager, since it is set to use "DMA if available". So that is very likely the problem with the windows slow down. Any ideas on how I can fix this without using the "rescue disc" that came with the computer? Regards, Chris -----BEGIN PGP SIGNATURE----- iD8DBQFFa7YhUx1jS/ORyCsRCOxoAJ0Uq2qO6GoR3EobMfBP/mVMdq+DVgCghJ0k xbxOJ3fbKqcj3i4V1jd8HXQ= =VPA3 -----END PGP SIGNATURE----- -- gentoo-user@gentoo.org mailing list
