[Z590] Asus ROG Maximus XIII Hero - PCH High Temperature

[KotOr368]

I don't know how precise is HWinfo for new Z590 series. But i assume that PCH VCCin is same as for Z490 (I have) PCH core. And on Z590 you have 1.8V and my Z490 have 1.040-1.060V. I think that is crazy different just for PCH. Asus screw this or Intel is scumbag with PCIe GEN4. But maybe Asus in past i saw people that have protective plastic on thermal pad from factory on VRMs or just Asus use too small thermal pad for good coverage. Then talk about hot.

[EncodeGR]

I don't know how precise is HWinfo for new Z590 series. But i assume that PCH VCCin is same as for Z490 (I have) PCH core. And on Z590 you have 1.8V and my Z490 have 1.040-1.060V. I think that is crazy different just for PCH. Asus screw this or Intel is scumbag with PCIe GEN4. But maybe Asus in past i saw people that have protective plastic on thermal pad from factory on VRMs or just Asus use too small thermal pad for good coverage. Then talk about hot.

Are you sure you have PCH VCCIN 1.0v or PCH Core Voltage ? They are different things.

PCH VCCIN is fine, it should be 1.8v that's the standard. PCH Core Voltage however should be ~ 1.0v, and from my reading it's 1.704v (VIN2 sensor). There is absolutely no control for PCH Core Voltage in Bios though, which is weird.

I also performed more tests.
Removed GPU, removed M.2, removed plastic rog-logo PCH cover. That is the most ideal / cool scenario for the pch.

Temperature still the same, idling at 62 C. Something is really wrong with that board and its Bios.

[KotOr368]

There is big chance they change name for some reason, but I have Z490 and my chipset voltage is PCH Core and its 1.050V. I don't see any voltage at 1.8V on my motherboard. And if on Z590 chipset voltage is PCH VCCIN 1.8V. That is high and . I own Z170,270,390 and all have PCH 1.050V as standart so why is 1.8V on Z590 ??? That i think is weird.

[menko2]

I'm on the same situation here.

In idle my PCH temp is 54°C and gaming goes all the way higher.

I'm still in stock BIOS that came with the board.

Did you guys find out something? Do you use the newer beta bios?

[EncodeGR]

I've updated everything. From Bios to the very last firmware / driver.
No change. They don't even include Bios Change Logs.... ._.

Make sure you submit a ticket, this might be a bug with the Bios. I hope a future bios update fixes it.

[Zardoc]

I checked my Strix A wiFi and I have @56 on idle so that is hot without load.

I will also submit a ticket.

[pitderbeste]

Hello all,

I opened a ticket on Feb. 24th but haven't received any feedback yet, did you get any information yet?

Gruß
PiT

[EncodeGR]

Hello all,

I opened a ticket on Feb. 24th but haven't received any feedback yet, did you get any information yet?

Gruß
PiT

Hey pitderbeste,

I did receive feedback from both US and Greek Asus Support.

The Greek Asus Support suggested me the following:
They suggested me to RMA the board if it keeps idling higher than 60C, which is completely wrong.
You don't RMA a freaking board for that, and if you do you're going to get a rejection. That makes sense. The guy clearly doesn't know what he's talking about.

The US Asus support however stated the following:
"I am writing this email to provide you an update about your ongoing case. In accordance to the recommendation of our Technical Support Department. The temperature is normal and the PCH Spec can reach a maximum of 108 degrees."

This is a more appropriate answer, as i do know that PCH generally runs hot. My concern was about it running hot while idling. They say that's normal, and to be honest, it kinda looks normal, taking into account the small heatsink it has. It's nowhere near 100C anyway.

Anyway, i replied the following:

"Thank you very much for the information. I do understand that the temperature is considered safe and that i should not worry.
Nevertheless, i would like to replace the thermal pad which sits between the PCH and the heatsink, with an after market high-performance one. So, my last question would be about its thickness.
Could you please inform me about the thickness of the thermal pad on the PCH heatsink ? I would expect it to be 0,5 - 1,5 mm, but it would be really helpful to know the official exact thickness of the thermal pad that was used, as this will ensure proper contact and mounting pressure."

So, i'm going to try to replace the stock thermal pad. I do not expect any crazy change in temps, but regardless, i will give you an update.

[EncodeGR]

*** UPDATE ***

After playing around in BIOS, i noticed that disabling some functionality and controllers that i don't use, lowered the PCH temperature quite a bit.

More specifically:

(Bios -> Advanced -> Onboard Devices Configuration)

Disabled USB Audio
Disabled WiFi Controller
Disabled Bluetooth Controller
Disabled 2nd 2.5 Gb Ethernet Port
Disabled 34 and 56 SATA Ports

My PCH temperature is now idling ~ 46 - 50 C, compared to 56 - 62 C that was before. Nothing too crazy, but you know, every little bit helps. That is with the GPU 0-RPM feature enabled.

Disabling that feature and running GPU fans at 30% (complitely silent), drops the temperature even more ~ 43 - 47 C, since it creates some airflow around the PCH. I will also replace the PCH thermal pad with a better one soon and give you an update on that as well.

You may want to experiment with such settings in BIOS and see what works for you.
Definitely disable stuff you know you won't need. Less power, less heat.

Have fun

[Zardoc]

*** UPDATE ***

After playing around in BIOS, i noticed that disabling some functionality and controllers that i don't use, lowered the PCH temperature quite a bit.

More specifically:

(Bios -> Advanced -> Onboard Devices Configuration)

Disabled USB Audio
Disabled WiFi Controller
Disabled Bluetooth Controller
Disabled 2nd 2.5 Gb Ethernet Port
Disabled 34 and 56 SATA Ports

My PCH temperature is now idling ~ 46 - 50 C, compared to 56 - 62 C that was before. Nothing too crazy, but you know, every little bit helps. That is with the GPU 0-RPM feature enabled.

Disabling that feature and running GPU fans at 30% (complitely silent), drops the temperature even more ~ 43 - 47 C, since it creates some airflow around the PCH. I will also replace the PCH thermal pad with a better one soon and give you an update on that as well.

You may want to experiment with such settings in BIOS and see what works for you.
Definitely disable stuff you know you won't need. Less power, less heat.

Have fun

That's all nice but what's the use of buying a board for those specific options if you shut them off ?

I use the wiFi, the Bluetooth, the board only has USB audio . I only have 1 Ethernet port. Well, I can disable some Sata ports