Z97E-ITX/ac > UEFI Render Standby > curious effect

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   Hello, 

Z97E-ITX/ac with Broadwell i5-5675C / Iris 6200 Pro - can anyone explain me these screenshots?

Upper one shows Iris 6200 Pro clock with UEFI option "Render Standby" enabled. GPU clock runs
at 1100 MHz all the time incl. idle (at least GPU-Z and AIDA64 show me this), irrespective of any
Intel or Windows GPU energy-saving options. But CPU/GPU/RAM idle power consumption is low,
around ~22 watt combined. With "idle" I mean 2D/Windows desktop when nothing else is to do
for CPU and GPU.

Lower one shows it with "Render Standby" disabled. GPU clocks down to 450 MHz at idle now, but
idle power consumption raising to ~36 watt then?!?

So is this a mainboard+Broadwell+BIOS issue, or are the detected durable 1100 MHz idle of the
upper screenshot just a wrong software readout?

Edited by Termie - 05 Nov 2015 at 5:20pm

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Termie Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17 Oct 2015 Location: Germany Status: Offline Points: 17	Post Options Post Reply Quote Termie Report Post Thanks(0) Quote Reply Topic: Z97E-ITX/ac > UEFI Render Standby > curious effect Posted: 04 Nov 2015 at 4:51pm
	Hello, Z97E-ITX/ac with Broadwell i5-5675C / Iris 6200 Pro - can anyone explain me these screenshots? Upper one shows Iris 6200 Pro clock with UEFI option "Render Standby" enabled. GPU clock runs at 1100 MHz all the time incl. idle (at least GPU-Z and AIDA64 show me this), irrespective of any Intel or Windows GPU energy-saving options. But CPU/GPU/RAM idle power consumption is low, around ~22 watt combined. With "idle" I mean 2D/Windows desktop when nothing else is to do for CPU and GPU. Lower one shows it with "Render Standby" disabled. GPU clocks down to 450 MHz at idle now, but idle power consumption raising to ~36 watt then?!? So is this a mainboard+Broadwell+BIOS issue, or are the detected durable 1100 MHz idle of the upper screenshot just a wrong software readout? Edited by Termie - 05 Nov 2015 at 5:20pm

Termie Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17 Oct 2015 Location: Germany Status: Offline Points: 17	Post Options Post Reply Quote Termie Report Post Thanks(0) Quote Reply Posted: 21 Dec 2015 at 5:10pm
	Come on plz, can anyone cross-check this? How fast/slow your Iris 6200 Pro clocks at idle? Slowly but surely I believe I´m the only one on this planet who use a Z97E-ITX/ac + Broadwell + Iris IGP...

wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 21 Dec 2015 at 7:25pm
	Both those screenies taken with absolutely no background graphics activity whatsoever present? Check them in Safe Mode and see if this is duplicated.