M Mikegs macrumors regular Original poster Aug 6, 2010 110 1 Apr 5, 2015 #1 How many fans are in the iMac 5k? Does the graphic card have a fan? Lowest speed of the main fan is 1200 RPM. Can it be lowered further by third party software? Thanks
How many fans are in the iMac 5k? Does the graphic card have a fan? Lowest speed of the main fan is 1200 RPM. Can it be lowered further by third party software? Thanks
redheeler macrumors G3 Oct 17, 2014 8,700 9,412 Colorado, USA Apr 5, 2015 #2 One fan. No it can't be lowered any further than the idle speed due to overheating protection built into the OS.
One fan. No it can't be lowered any further than the idle speed due to overheating protection built into the OS.
A andy9l macrumors 68000 Aug 31, 2009 1,699 365 England, UK Apr 5, 2015 #3 One fan in iMacs since 2012 @1,200rpm minimum. No, the mGPU does not have a fan. In the 5K iMac: GPU under load = 2,300rpm max. CPU + GPU under load = 2,700rpm max. Whilst 2,700rpm is extremely loud, 1,200rpm is near silent. I would say there's no need to lower further. The 5K iMac fan noise is about twice as loud as the 2013 iMac when under load.
One fan in iMacs since 2012 @1,200rpm minimum. No, the mGPU does not have a fan. In the 5K iMac: GPU under load = 2,300rpm max. CPU + GPU under load = 2,700rpm max. Whilst 2,700rpm is extremely loud, 1,200rpm is near silent. I would say there's no need to lower further. The 5K iMac fan noise is about twice as loud as the 2013 iMac when under load.
M Mikegs macrumors regular Original poster Aug 6, 2010 110 1 Apr 5, 2015 #4 Thank for the information. I have sensitive ears (OCD maybe...), so I think 1000 RPM would be more optimal during light use
Thank for the information. I have sensitive ears (OCD maybe...), so I think 1000 RPM would be more optimal during light use
S Significant1 macrumors 68000 Dec 20, 2014 1,688 780 Apr 5, 2015 #5 Mikegs said: Thank for the information. I have sensitive ears (OCD maybe...), so I think 1000 RPM would be more optimal during light use Click to expand... Are you sure, you don't mistake mechanical hard-drive noise as fan noise? (don't have a 5K iMac)
Mikegs said: Thank for the information. I have sensitive ears (OCD maybe...), so I think 1000 RPM would be more optimal during light use Click to expand... Are you sure, you don't mistake mechanical hard-drive noise as fan noise? (don't have a 5K iMac)
M Mikegs macrumors regular Original poster Aug 6, 2010 110 1 Apr 5, 2015 #6 Absolutely. I have an SSD only
N Nismo73 macrumors 65816 Jan 4, 2013 1,215 1,048 Apr 5, 2015 #7 Mikegs said: Thank for the information. I have sensitive ears (OCD maybe...), so I think 1000 RPM would be more optimal during light use Click to expand... I hear it in a silent room. Maybe in the future they would be able to have it run at idle at 1000rpm to lower the idle db number.
Mikegs said: Thank for the information. I have sensitive ears (OCD maybe...), so I think 1000 RPM would be more optimal during light use Click to expand... I hear it in a silent room. Maybe in the future they would be able to have it run at idle at 1000rpm to lower the idle db number.
C cynics macrumors G4 Jan 8, 2012 11,959 2,157 Apr 5, 2015 #8 Significant1 said: Are you sure, you don't mistake mechanical hard-drive noise as fan noise? (don't have a 5K iMac) Click to expand... I can easily hear the fan @ idle over Apples current WD 7200 rpm HDD offering. Reason I know is aside from knowing the sound of a HDD is because of replacing HDD's with SSD's. That said I still consider the fan @ 1200 RPM virtually silent.
Significant1 said: Are you sure, you don't mistake mechanical hard-drive noise as fan noise? (don't have a 5K iMac) Click to expand... I can easily hear the fan @ idle over Apples current WD 7200 rpm HDD offering. Reason I know is aside from knowing the sound of a HDD is because of replacing HDD's with SSD's. That said I still consider the fan @ 1200 RPM virtually silent.