Well, I guess given your other post the question becomes which you really consider is the problem:
1. The fact that the computer wakes back up (which is what I was getting at here) or 2. The fact that the other peripherals go to sleep, due to the low sleep current powering down the powerboard (which is what you indicate in your second post and I replied to in my other reply) If 2) then I agree with you the obvious way forward is to include another power-drawing device in the master circuit. If 1) then the question is WHY is the computer waking up and the next step is to narrow down if it is one particular peripheral (eg the router OR the Airport Extreme) which is initiating the wake-up or if more than one would give the same problem. Running the test with the computer and just one peripheral connected (in turn) should give you the answer here. Cheers Neil -- Neil R. Houghton Albany, Western Australia Tel: +61 8 9841 6063 Email: [email protected] on 16/4/11 5:41 PM, Severin Crisp at [email protected] wrote: > Thanks for your extensive comments Neil. When I put it to sleep the router > modem and Airport Extreme lights immediately go out/flash and indicate power > down as does the laser printer. The G5 dutifully responds by waking up and > thus restoring power. > Severin > > On 16/04/2011, at 5:21 PM, Neil Houghton wrote: > >> Hi Severin, >> >> I¹m just guessing here... >> >> If it works fine on shutdown, but not on sleep, then my first guess would be >> that it is either the computer itself or the attached drives? >> >> >> Computer? >> >> Maybe the sleep current is really marginal with reference to the ³shut-off² >> current of the powerboard and during the sleep ³sequence² it varies >> below/above this threshold. My guess though would be that it is one of the >> attached peripherals: >> >> >> >> Drives ? >> >> I would imagine that a proper shutdown would unmount the drives prior to >> shutdown they would then switch-off OK and, next morning, everything powers >> back up again and the drives automatically mount on powering up. >> >> Perhaps just sleeping the computer does not actually unmount them without >> the Energy Saving Powerboard the drives would probably ³sleep² when the >> computer sleeps but perhaps actually powering the drives down, without >> properly ³unmounting² them causes the problem. >> >> You could always try unmounting the drive(s) and then sleeping the computer >> to see if it makes any difference.. >> >> >> Other peripherals? - thoughts: >> >> You could check if it is any particular component causing this by >> disconnecting them all and trying the ³sleep² command and seeing if the >> computer stays asleep and, assuming it does, then connecting them one by one >> and repeating the test until the problem surfaces. >> >> I¹m assuming you don¹t have ³Wake for network access² checked if you do, >> see if unchecking it makes any difference. >> >> >> Solutions? >> >> Will really depend on the problem/cause. If unmounting the drives first >> solves it but is a nuisance because you have several drives maybe you >> could do a ³sleep² script that unmounts the various discs and THEN sleeps the >> computer. (I haven¹t really messed with automator so I don¹t even know if >> this is possible/practical) >> >> >> >> Anyway, there you go no answers but a few thoughts ;o) >> >> >> >> Cheers >> >> >> >> Neil >> -- >> Neil R. Houghton >> Albany, Western Australia >> Tel: +61 8 9841 6063 >> Email: [email protected] >> >> >> >> on 16/4/11 4:34 PM, Severin Crisp at [email protected] wrote: >> >> >>> Trying to be energy miserly I bought a Jackson Green Energy Saving >>> Powerboard (http://www.ji.com.au/products/PT9778/). >>> It works fine with my G5 plugged in to the Master socket and everything >>> else, display, printers, router, modem, Airport, scanner, Firewire drives >>> and so on in Slave sockets. When I shut down at night the G5 goes through >>> Shutdown then everything switches off. In the morning at 8.40am when the G5 >>> restarts everything comes back on. >>> There is an unfortunate snag. During the day when I am away from the desk >>> I put the G5 to sleep. When I try this it goes to sleep then almost >>> instantly reawakes. I believe that the sleep current drawn is so small that >>> the board obediently powers down the slaves and in their dying gasps the >>> modem and the like send out signals and the G5 responds by waking up. >>> Has anyone else used one of these gadgets or have any bright ideas for a >>> workaround? >>> Severin Crisp >>> >>> ________________________________________________________ >>> >>> Assoc Professor R Severin Crisp, FIP, CPhys, FAIP >>> >>> 15 Thomas St, Mount Clarence, Albany, 6330, Western Australia. >>> >>> Phone (08) 9842 1950 (Int'l +61 8 9842 1950) >>> >>> email mailto:[email protected] >>> >>> ________________________________________________________ >>> >>> -- 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> Unsubscribe - <mailto:[email protected]>
