Replaced iMac HD - now fans constantly on
in [UK Mac]
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From: Sara on 25 Mar 2010 11:04 In article <1jfwxfc.1rxf57z3u6t9uN%real-address-in-sig(a)flur.bltigibbet.invalid>, real-address-in-sig(a)flur.bltigibbet.invalid (Rowland McDonnell) wrote: > Sara <saramerriman(a)blueyonder.co.uk> wrote: > > > 20" iMac > > > > Just replaced the HD and now the fans are running full on all the time. > > > > I opened it up again to have a look at the heat sensors and they both > > (the one on the HD and the one on the optical drive) were barely > > attached so I refixed them with double-sided tape to the holder, not to > > the sensor itself. Put machine back together and no difference, lots of > > fan. > > > > I'm wondering if the part of the HD the sensor is attached to is the > > problem, the old drive had a completely smooth section that it was fixed > > to, the replacement has all kinds of gubbins on it - by which I mean > > slightly raised writing and patterns. Could this be the problem? > > > > Any other suggestions? > > What's Activity Monitor got to say? > > Could be a software issue - which OS version? > Nothing - it's a new HD, no OS, no software. I'm going to boot it of the install disk in a bit and see if the generally despised hardware test proggie thing says anything. -- Sara Hurrah - the weather has cheered up
From: Jim on 25 Mar 2010 11:10 On 2010-03-25, Sara <saramerriman(a)blueyonder.co.uk> wrote: >> >> Could be a software issue - which OS version? >> > Nothing - it's a new HD, no OS, no software. I'm going to boot it of the > install disk in a bit and see if the generally despised hardware test > proggie thing says anything. > Is it possible that that's normal when there's no OS? No OS has implications of no power/heat management. I see that a bit on PCs - the fans are on full until the OS has booted beyond a certain point, then they calm down. Jim -- Twitter:@GreyAreaUK "[The MP4-12C] will be fitted with all manner of pointlessly shiny buttons that light up and a switch that says 'sport mode' that isn't connected to anything." The Daily Mash.
From: Chris Ridd on 25 Mar 2010 11:35 On 2010-03-25 15:10:41 +0000, Jim said: > On 2010-03-25, Sara <saramerriman(a)blueyonder.co.uk> wrote: >>> >>> Could be a software issue - which OS version? >>> >> Nothing - it's a new HD, no OS, no software. I'm going to boot it of the >> install disk in a bit and see if the generally despised hardware test >> proggie thing says anything. >> > > Is it possible that that's normal when there's no OS? No OS has implications > of no power/heat management. I see that a bit on PCs - the fans are on full > until the OS has booted beyond a certain point, then they calm down. Exhibit A: HP x86 servers. I SAID EXHIBIT A: HP X86 SERVERS! They're a bit loud. -- Chris
From: Jim on 25 Mar 2010 11:39 On 2010-03-25, Chris Ridd <chrisridd(a)mac.com> wrote: >>>> >>> Nothing - it's a new HD, no OS, no software. I'm going to boot it of the >>> install disk in a bit and see if the generally despised hardware test >>> proggie thing says anything. >>> >> >> Is it possible that that's normal when there's no OS? No OS has implications >> of no power/heat management. I see that a bit on PCs - the fans are on full >> until the OS has booted beyond a certain point, then they calm down. > > Exhibit A: HP x86 servers. I SAID EXHIBIT A: HP X86 SERVERS! > > They're a bit loud. See also and PC made by Fujitsu in the last <n> years. Jim -- Twitter:@GreyAreaUK "[The MP4-12C] will be fitted with all manner of pointlessly shiny buttons that light up and a switch that says 'sport mode' that isn't connected to anything." The Daily Mash.
From: Jon B on 25 Mar 2010 11:46
Sara <saramerriman(a)blueyonder.co.uk> wrote: > In article > <1jfwxfc.1rxf57z3u6t9uN%real-address-in-sig(a)flur.bltigibbet.invalid>, > real-address-in-sig(a)flur.bltigibbet.invalid (Rowland McDonnell) wrote: > > > Sara <saramerriman(a)blueyonder.co.uk> wrote: > > > > > 20" iMac > > > > > > Just replaced the HD and now the fans are running full on all the time. > > > > > > I opened it up again to have a look at the heat sensors and they both > > > (the one on the HD and the one on the optical drive) were barely > > > attached so I refixed them with double-sided tape to the holder, not to > > > the sensor itself. Put machine back together and no difference, lots of > > > fan. > > > > > > I'm wondering if the part of the HD the sensor is attached to is the > > > problem, the old drive had a completely smooth section that it was fixed > > > to, the replacement has all kinds of gubbins on it - by which I mean > > > slightly raised writing and patterns. Could this be the problem? > > > > > > Any other suggestions? > > > > What's Activity Monitor got to say? > > > > Could be a software issue - which OS version? > > > Nothing - it's a new HD, no OS, no software. I'm going to boot it of the > install disk in a bit and see if the generally despised hardware test > proggie thing says anything. That may make a difference as they will ramp up the fans without an OS to protect the hardware. Still going to have a dig for a spare sensor later. -- Jon B Above email address IS valid. <http://www.bramley-computers.co.uk/> Apple Laptop Repairs. |