No vrout on Z790 AORUS MASTER

[AN7]

Keep in mind that this not only happening after the pc is suspended/resumed, it also happens after 2 or 3h of uptime after a normal power cycle.

 

[Martin]

Thanks, I will try to fix this in the next (Beta) build.

 

[Shonk]

I have just noticed its giving me VR VOUT + POUT on my Z690 Aorus Elite AX DDR4

thanks so much

when was this added btw?

and am i reading it right that there's 98-99W of vrm losses at full load?

 

[AN7]

I think 7.64 is the first official release that has the enhanced support for the vrm.

As for the losses, they should be accurate enough.

 

[Martin]

Yes, looks like there's such a loss.

 

[Shonk]

Thanks

I have just been looking at my Z390 Aorus Master in comparison the my two Z690 Aorus Elite AX DDR4's

The vrm efficiency seems crazy bad on the Z690's even at idle
if its correct so be it but its so high it looks to be a calculation error maybe?

16+1+2 Direct Digital VRM Design
70A Power Stage
Premium Choke and Capacitor
50% VRM Losses at idle?
26% VRM Losses at load?

Z390 Aorus Master at idle is 16.xx w Power (Input) 16.xx w Power (POUT) i9 9900K 52x (1-3c), 50x (4-8c)
Z690 Aorus Elite AX DDR4 1 at idle is 30w Power (Input) 20w Power (POUT) i9 12900K 53x (1-3c), 52x (4-7c), 51x (8c)
Z690 Aorus Elite AX DDR4 2 at idle is 38w Power (Input) 24w Power (POUT) i9 13900K 58x (1-3c), 57x (4-5c), 56x (6-7c), 55x (8c)
Z690 Aorus Master at idle is 23w Power (Input) 17w Power (POUT) i9 12900K 53x (1-3c), 52x (4-5c), 51x (6c), 50x (7c), 49x (8c)

All use
Stock Intel Voltage Tables
Load Line = Normal

9900K Z390 Aorus Master
IA Domain Loadline (AC/DC): 1.300 / 1.300 mOhm (Auto)
Voltage/Frequency Curve: +20mv (adding the 52x multiplier for cores 1-3 results in around a 22mv undervolt at 50x so i had to bump the table 20mv for the Curve)
Otherwise it used the 50x vid for 52x and 50x got less etc..

12900K Z690 Aorus Elite AX DDR4
IA Domain Loadline (AC/DC): 0.700 / 0.900 mOhm (Auto)
Voltage/Frequency Curve: -50mV @ 48x, -50mV @ 53x, -50mV @ 53x, -50mV @ 53x

13900K Z690 Aorus Elite AX DDR4
IA Domain Loadline (AC/DC): 0.600 / 0.900 mOhm (Auto)
Voltage/Frequency Curve: -29mV @ 51x, -29mV @ 54x, -29mV @ 57x, -29mV @ 58x

12900K Z690 Aorus Master
IA Domain Loadline (AC/DC): 0.700 / 0.900 mOhm (Auto)
Voltage/Frequency Curve: Stock

 

[Martin]

Yes, it seems very strange and the difference too large.
I have double-checked the datasheet and HWiNFO should be properly reporting both PIN and POUT, so that's the telemetry really provided by the PWM.

 

[Shonk]

I suspected as much tbh
It must be so badly setup
you really must have to work to have numbers that bad

Power POUT = 374W
Power Input = 473W
HX1500I PSU Power Out = 514W (I have 5 Nvme Drives + 2 2.5" SSD's 2 x 2.5GBE nics motherboard RX 6900XT etc the 6900XT has a 34W idle draw)
HX1500I PSU Power In = 547W (94.3%)

its just shocking how bad vrm efficiency is
so much for my HX1500i saving me energy lol

Glad i put my old Z390 Aorus Master in the server now to replace its Z390 M Gaming as no doubt the vrm's where just as bad on that

 

[AN7]

If you think about that the newer(than z390) platform vrms have so much headroom that actually run outside of their optimal efficiency
z690 master is capable of 19*105A
z790 master is capable of 20*105A
only for IA cores and you draw 1/10th of it

 

[Shonk]

If you think about that the newer(than z390) platform vrms have so much headroom that actually run outside of their optimal efficiency
z690 master is capable of 19*105A
z790 master is capable of 20*105A
only for IA cores and you draw 1/10th of it

Its supposed to spin up and down the Phases as required

My Gigabyte EP45-DS3R from 2008 had 6 Phases that spun up and down under load
they had a nice little app that you could monitor them spin up and down called Gigabyte DES

But yeah by the looks of it they have all phases going





Here it is on a 12 Phase board

 

[Martin]

That was nice