USB ports can also stop working for no reason, then start working again mysteriously when something else is plugged into them. Sometimes when the computer can't read or find whatever you have plugged in them, you just need to unplug then replug it, or move it to a different port. The guy who installed my internet told me that USBs are the most unstable connection on a computer.
----- Original Message ----- From: "Bones" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, November 28, 2008 4:19 PM Subject: [Papermodels II 32935] Re: LaCie external HD On Fri, 2008-11-28 at 09:02 -0800, Duane Brimhall wrote: > For the record (and I hope I'm not adding to the confusion), I've tried to > operate two WD My Book 320Gb Powered external drives from a single USB 2.0 > powered hub (plugged into the back of the computer). The computer (HP) > would only recognize one of the drives. > > I'm not using notebook drives that get their power from the computer. > > When I plugged one of those drives directly into one of the front ports, > it would be recognized, and it would show that I had two My Books hooked > up (the one still hooked up to the hub and the one from the front port). > > I guess what I was trying to say is, that I need to buy a few extra > powered hubs to see what would happen if I plugged one My Book, and no > more than that, into each of the powered hubs (I've got four, I'm holding > two in reserve). I have a similar number of ports on my computer as Jim. > > Based on what Jim said earlier, and confirmed by what I tried to do before > I knew about Jim's attempts, multiple hard drives off the same hub don't > work. > > The next experiment that I need to try is to plug another one into another > port and see if my computer suffers from the same 1TB limit as Jim's. > > Duane > Forget using hubs when plugging in things like Hard Drives that don't have their own power supply. Mr USB port runs on about 6 volts and then Mr User jams 2 or 3 hard drives in which each need to drive a motor for the platter and a step motor for the pickup arm and all of a sudden you have a port that can't deliver enough juice to light an LED let alone run 4 or 6 motors. Simple voltage drop, besides which Mr USB port is like a road...he is only so wide and when you plug a device in singly it has the whole road to drive on...plug in another and each has half a road...plug in 4 and they have a quarter each...see where this is going ?...USB is basically a fixed bandwidth for data transfer, and not a particularly good one at that despite all the noises that business make when they try to sell you USB devices. It's a bit like wireless networks..sold as a done deal but anyone who has to deal with them knows just how poorly they perform in reality. Also don't trust your Western Dogfood drive....another brand with which I have used the dead members of it's bretheren to pave my 200 metre long driveway. Not trying to be a negative soul here just my experiences. Bones -- --------------------------------------- Linux....no need to open Bill's Gates --------------------------------------- -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. --- avast! Antivirus: Inbound message clean. Virus Database (VPS): 081128-0, 11/28/2008 Tested on: 11/28/2008 4:24:23 PM avast! - copyright (c) 1988-2008 ALWIL Software. http://www.avast.com --- avast! Antivirus: Outbound message clean. Virus Database (VPS): 081128-0, 11/28/2008 Tested on: 11/28/2008 4:34:39 PM avast! - copyright (c) 1988-2008 ALWIL Software. http://www.avast.com --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Papermodels II" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Papermodels?hl=en -~----------~----~----~----~------~----~------~--~---
