PDA

View Full Version : [Z590] Asus ROG Maximus XIII Hero - PCH High Temperature



EncodeGR
02-23-2021, 11:49 AM
My PCH temperature is fairly high, which concerns me. I'm used to everything else in my system being pretty chilly, usually around 28-30 C. The airflow is also really good. The *only* thing that gets hot is the PCH, and i don't understand why.


-- Some Backround Info, Setup --

Intel Pentium G6400 4.0GHz (Lol, well... until i get my Rocket Lake chip)

MSI GTX 1070Ti Gaming X (Until i actually manage to find a 3080/3070, if ever...)

HyperX DDR4 32GB 3600Mhz XMP CL17 (4 x 8 GB)

Asus ROG Maximus XIII Hero (Z590)

Asus ROG Thor 850 Plat

Samsung 980 Pro M2. NVMe PCIe 4.0 500GB (installed in M2.2_2, cpu bound)

Noctua NH-U12A

Noctua NF-A14 PWM (x6)



-- Things i've tried --


Updated Drivers. Updated ME FW. Updated BIOS.
Inspected PCH heatsink and thermal pad and resit. No change.
Removed M.2 NVMe drive and GPU. No significant change.
Checked the PCH 1.8v VCCIN voltage, stable 1.8v.
Made sure nothing is "overclocked", using XMP, or enhanced in any automatic way.
Lowered VCCIO and VCCSA to 1.10v, since automatic was pushing both to 1.40 for some reason !! (CPU weak memory controller ?). No change.


** I need to mention i couldn't find the PCH Core Voltage, anywhere in the settings. No idea why.


-- PCH Temperature --

PCH temperature starts at 35-38 C, during a cold boot. During the next 5 minutes it climbs and stabilizes at 56 - 62 C, while IDLING.

And that's with a system without GPU, or M.2 NVMe drive. Just the CPU and its iGPU which stay at 24 C, cooled by a Noctua NH-U12A. With a fully assembled system and under load it goes up to 70 - 80 C.


Now... The only thing i have not tried yet, is to completely remove the plastic ROG-logo cover, on top of the PCH, as it may be severely suffocating the heatsink, restricting the airflow towards it.

That would explain the temps under load, but i'm not sure if that explains the initial fast-climbing temperatures while idling. And honestly, without the cover the LEDs underneath it are blinding, so the Aura lighting needs to be completely disabled. Could this be a flawed design ?? I doubt.

I don't understand what's wrong. I've seen people reviewing this mothereboard, while reporting PCH idle temps at 35C and 55C under load. I know that right now, it's not gonna cause any sort of damage. I am however concerned about the longevity and a possible degredation over time, thinking that my PCH is at 75-80 C while gaming.

Sorry for the long post, had to make sure everythong's covered.

Any help would be appreciated :)

-- HWInfo & HWMonitor -> 3 minutes after cold boot --
-- Bios Monitor -> 10 minutes after cold boot --
87922

Zardoc
02-23-2021, 08:04 PM
That's not normal. I would submit a ticket. It just may need a bios update but I can't say for sure.

EncodeGR
02-23-2021, 08:57 PM
Yeap, already submitted one.

I'm very sceptical. I mean not only the PCH temp is high and PCH voltage is shown as 1.704v which sounds crazy, but also the motherboard also applied 1.40v to both VCCIO and VCCSA by default automatically (even without XMP), and 1.40v is way too much. I had to lower them manually to 1.10v. I don't understand what's going on, it's like the board's Bios and auto settings are over-reacting.

Could this be caused by the very low end Pentium G6400 ? Cause the board was definitely not designed to work with such a low end CPU. But shouldn't it be able to ? I don't know... I mean, i will replace it soon with Rocket Lake chip, i just don't want my board to get degradation or any sort of damage by then.

lLegendaary
02-23-2021, 08:58 PM
RMA? or try to check thermal paste for your chipset manually .

EncodeGR
02-24-2021, 12:18 PM
RMA? or try to check thermal paste for your chipset manually .

The RMA process seems way too complicated for that period due to COVID. I would say 1-2 months, maybe more, to get it replaced, and i need my computer for my job.

I've already stated in the original post that i've already checked the heatsink which as i said has a thermal pad, and i did re-sit it.
Thermal paste is not an option since there is a gap between them, thus the thermal pad.

Saltgrass
02-24-2021, 12:51 PM
The RMA process seems way too complicated for that period due to COVID. I would say 1-2 months, maybe more, to get it replaced, and i need my computer for my job.

I've already stated in the original post that i've already checked the heatsink which as i said has a thermal pad, and i did re-sit it.
Thermal paste is not an option since there is a gap between them, thus the thermal pad.

I don't have that board so I don't know how it was delivered but the plastic cover on the logo is probably just to protect the logo. There are usually a few of those type covers.. I would remove it if it is covering a heatsink..

EncodeGR
02-24-2021, 01:07 PM
I don't have that board so I don't know how it was delivered but the plastic cover on the logo is probably just to protect the logo. There are usually a few of those type covers.. I would remove it if it is covering a heatsink..

I'm sorry, what i meant was that the whole cover with the ASUS logo is made of plastic (compared to the other metalic heatsinks).
The actual pch heatsink is below (making no contact with the plastic). I find that weird, since the plastic Asus logo thingy completely surrounds and suffocates the PCH, and blocks any airflow.

Taken two screenshots from a Youtube video. They should explain how things are a bit better:
87931

Zardoc
02-24-2021, 01:55 PM
Is it me that's confused or is the heat sink plastic still on there? I'm just not sure, because you have to remove the plastic for the heat sinks.

I think that we are still a ways from RMA.

Here are my temps.

87932

EncodeGR
02-24-2021, 02:02 PM
Is it me that's confused or is the heat sink plastic still on there? I'm just not sure.

Those photos are not mine. I have removed all thin films from the heatsinks (white) as well as their base (blue).

What the first photo shows, is the M.2 metal heatsink, merged with the plastic PCH cover.
The sesond photo just shows the pch metal heatsink.

That plastic cover goes on top of the PCH heatsink, essentialy blocking all airflow. No idea why they designed it like that.

pitderbeste
02-24-2021, 03:51 PM
Hello everybody,

I also bought an Asus ROG Maximus XIII Hero (Z590) and can also see that the PCH temperature is very high (74 degrees)

I currently use:
Intel I9 10900kf
Gigabyte RTX3090
2 Samsung 970 EVO Plus in M2.2_3 M2.2_4 (RAID 0)
Corsair DDR4 32GB Kit 4600 CL18

But I see PCH temperature twice .. What is for what.

Regards
PiT

temp after 1h Fortnite

87933

KotOr368
02-24-2021, 04:17 PM
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
02-24-2021, 06:03 PM
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
02-24-2021, 07:07 PM
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.
87940

menko2
02-24-2021, 07:14 PM
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
02-24-2021, 07:21 PM
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
02-24-2021, 10:46 PM
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
03-04-2021, 08:49 AM
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
03-04-2021, 09:02 AM
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
03-14-2021, 01:51 PM
*** 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
03-16-2021, 12:48 PM
*** 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 :rolleyes:

EncodeGR
03-16-2021, 12:55 PM
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 :rolleyes:

I bought the board mainly for it's overclocking capabilities, VRMs, Voltage Control etc, as well as its cooling solutions.
But definitelly agree with you. Well, perhaps this board has higher pch temperature exactly because it can handle all that stuff exceptionally well.

We'll see. Maybe future firmware / bios updates will improve things.

Saltgrass
04-08-2021, 02:59 AM
Those photos are not mine. I have removed all thin films from the heatsinks (white) as well as their base (blue).

What the first photo shows, is the M.2 metal heatsink, merged with the plastic PCH cover.
The second photo just shows the pch metal heatsink.

That plastic cover goes on top of the PCH heatsink, essentialy blocking all airflow. No idea why they designed it like that.

I just got my board set up, just installed Bios 605. My chipset is running at 65° C in the Bios Monitor.. Did you ever get it resolved?

Zeroed85
04-08-2021, 11:34 AM
Another XIII Hero owner here with PCH 74-80C. Running BIOS 605...

menko2
04-09-2021, 01:43 PM
Disable thunderbolt in bios and temps should lower.

3dw4rdTm
04-12-2021, 08:33 PM
Same here, 61 degrees in idle.

This z590 chipset is probably a bit hotter, Pcie 4.0 requires more power after all.

EncodeGR
04-12-2021, 08:59 PM
This z590 chipset is probably a bit hotter, Pcie 4.0 requires more power after all.

Z590 chipset lanes run at PCIe 3.0, only CPU lanes are PCIe 4.0.
PCIe 4.0 chipset lanes would probably require a fan.

3dw4rdTm
04-13-2021, 06:23 AM
Z590 chipset lanes run at PCIe 3.0, only CPU lanes are PCIe 4.0.
PCIe 4.0 chipset lanes would probably require a fan.

Its true... in that case I do not know the reason for the high temperatures. Bad design probably?.

PCH 59/60C degrees idling in my case.

Blake@ROG
04-16-2021, 07:31 AM
Dear all,
After checking internally, the temperature of your PCH is normal.PCH can stand the heat up to 108C.
Eventhough the device is idling, the system is still running, so an amount of heat would still be generated and you still see certain temperature of your PCH.
Please don't worry. Thank you very much for your feedback.

3dw4rdTm
04-16-2021, 04:34 PM
Dear all,
After checking internally, the temperature of your PCH is normal.PCH can stand the heat up to 108C.
Eventhough the device is idling, the system is still running, so an amount of heat would still be generated and you still see certain temperature of your PCH.
Please don't worry. Thank you very much for your feedback.


Ok, good to hear that!! Thanks a lot for the answer!

DjDerex
05-10-2021, 08:05 PM
Came across your post as my Maximus XIII Hero PCH temp is also 75-85 on idling, even inside of one of the best cases known for high air flow: Cooler Master h500m. I have a strix 3090 gpu and i9-11900k, i was wondering, if i mount the gpu vertically, would that help ? I think now the PCH gets hotter because of hot gpu and also gpu gets hotter because hot PCH, both gpu and pch next to each other not really good combination.

Anyone tried that ?