Hi Brian, On 05/10/2011, at 6:03 PM, Brian Scott wrote:
> Hi Ronni, > > My iMac isn't very old ( 24-inch Early 2008, 3.06 GHz Intel Core Duo). > > I'd like to sell it before the AppleCare runs out on it but I prefer > it to the new iMacs. > > Although I guess I could get used to a new one. > > It runs Tiger, the MacMini has Leopard and my MacAir has Tiger. > > The USB drive holds my music and is often turned off until I need it, > it comes off my > keyboard as does my marble mouse. > Now I have removed the FW400 drive from the hub (which is not powered) > only the > keyboard and printer are now attached to it, and occasionally my camera. Apple aluminium keyboards provide USB 1.1 or USB 2 But you really need a powered hub for the FW400 drive. I would not run a Hub connected to the Keyboard USB. It's OK to attach a printer or scanner (since they're self powered) and mouse to the keyboard as those devices will not exceed the power limitations of the keyboard. You do not want to attach your external hard drives to a USB power source that allows them to be turned off when shutting down the machine. That will almost certainly result in data loss. External drives should be properly ejected prior to removing them or shutting them down. Cheers, Ronni > The iMac's USB inputs are taken up by EyeTV, an external burner and > the hub. > > Cheers > Brian > > > On 05/10/2011, at 2:17 PM, Ronda Brown wrote: > >> Hi Brian, >> >> Thanks for getting back to the list. Glad you have your FW 800 port >> working again. >> >> Is the FW400 / USB hub self powered from its own separate power >> supply? >> What are the specs of your iMac, how old etc? >> You have a few devices coming from the Hub, plus your Two FW 800 >> Drives connected to the iMac. >> >> That’s quite a load on your iMac each time it wakes from sleep. >> You might have too many high power devices demanding more power >> through the ports than the iMac can accommodate. >> >> Cheers, >> Ronni >> >> On 05/10/2011, at 11:41 AM, Brian Scott wrote: >> >>> On 04/10/2011, at 1:31 PM, Ronda Brown wrote: >>> >>>> Hi Brian, >>>> >>>> Have you tried: Unplug the Power for 5min to your computer and >>>> drives and then restart? >>>> >>>> The other thing that can happen is an external drive won't mount on >>>> one computer but will mount on another. >>>> If you have an application running from an external drive that >>>> automatically loads on start up. >>>> If the drive was not ejected properly(power failure etc) you can >>>> find it won’t mount on the original computer but will mount on a >>>> different Mac. >>>> >>>> Try disabling the auto start of all applications. >>>> >>>> Cheers, >>>> Ronni >>> >>> Hi Ronni, >>> >>> Thank you for your reply. >>> >>> I tried removing a combination FW400 / USB hub that I had my keyboard >>> plus mouse, printer, USB drive >>> and a FW400 drive (not turned on for quite a while) going through and >>> once the hub was removed the >>> FW800 drives came back into use. >>> >>> A FW400 port in the hub seems to be faulty. >>> >>> The relief of finding that and getting my drives up and working again >>> was like having a boil lanced. >>> >>> Cheers >>> Brian Scott >>> >>>> >>>> On 04/10/2011, at 12:51 PM, Brian Scott wrote: >>>> >>>>> Hi, >>>>> >>>>> I've had these two WD drives (4 TB & 2 TB) hooked up (daisy- >>>>> chained) >>>>> to my iMac 24" for a while now. >>>>> >>>>> First yesterday I couldn't access some second level directories >>>>> now I >>>>> get this warning from >>>>> 'About This Mac/firewire' - "FireWire Bus: Warning: Unable to list >>>>> FireWire devices." >>>>> even when they are plugged in individually. >>>>> >>>>> That's on the iMac, on the MacMini both drives work fine. >>>>> >>>>> I get the same result when I start the iMac in Safe Mode. >>>>> >>>>> The iMac's OS is 10.5.8 - the MacMini's OS 10.6.8. >>>>> >>>>> Both the 2 TB and 4 TB have the File System: Journaled HFS+. >>>>> >>>>> Both are called My Book though the 4 TB has 3 partitions. (each >>>>> drive's info is listed below) >>>>> >>>>> I've only hooked them up to the MacMini individually incase I loose >>>>> access to them altogether. >>>>> >>>>> I had a similar problem with them about a month ago but a PRAM >>>>> reset >>>>> brought things right again, >>>>> it doesn't help anymore. >>>>> >>>>> I took computer (not the drives) into NextByte where they ran some >>>>> tests on it and >>>>> hooked up a laptop to it via FW800 with no problems and declared >>>>> the >>>>> iMac to have no >>>>> issues. >>>>> >>>>> Is there a way of getting my iMac to recognize these drives again? >>>>> >>>>> Thanks >>>>> Brian Scott -- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
