QUOTE(mitodna @ Jun 12 2010, 12:32 AM)
What happened? External HDD should be doing 30MB/s.
QUOTE(lok3i @ Jun 12 2010, 12:33 AM)
Maybe your mobo only support USB 1.1
QUOTE(everling @ Jun 12 2010, 12:39 AM)
(80GB + 20GB) / (20 hours * 3600 seconds) = 1.38 MB/s
Maybe it's USB 1.0? Other possibilities are very heavy file fragmentation and lots of tiny little files (they incur a huge performance cost).
i am not sure too.how to check it is usb 1.0 or usb 2.0.
i remember when i plug in my WD external hdd and portable hdd, it prompt out the ysb 2.0 speed on the right side menu(clock side).
beside that,my pc got alot of virus,and bloodly hell lag for almost 1year+.That's why i bought WD external hdd for backup,because i want to format my pc.
i using acer cpu,aspire sa85 model.