[SOLVED] CPU getting hot after startup, bad CPU or cooler?

[elpumadefuego]

I acquired an aorus MB, a Ryzen 5 3600 and a cooler master, I put them all together 6 months ago and everything was just fine; however, last week I noticed that my CPU temperature goes up little by little with no load (I checked the task manager and the CPU usage was 2%) after starting up, most of the time when the CPU gets to 60 celsius degrees then it starts cooling down fast 'tiil it gets to 30 degrees, but sometimes it gets to 90 celsius degrees before starting to cool down, does anyone have any idea of what's going on? I already changed the thermal paste and It's not made any difference, my guess is that maybe the cooler pump is kind of not starting right away after starting the PC, also the CPU voltage runs steady at 1.1v.

 

[LeiHeJun]

@elpumadefuego
what software are you using to read your cpu temps?

 

[elpumadefuego]

@elpumadefuego
what software are you using to read your cpu temps?

I use "Ryzen master", what SW should I use?

 

[LeiHeJun]

I use "Ryzen master", what SW should I use?

good.

it gets to 90 as idle? what's it doing?
under stress 90c is okay and AMD can go from 80 to 30 in a blink. that's no problem.

your temps seems ok to me, eventhough you say it was fine for 6 months. I bet you it was doing this crazy fluctuations, you just noticed them last week.

my only concern is, does it go to 90 in a spike.

You can throttle your cpu to keep it always under a specific temp. to do that, you must go to bios settings, AMD overclocking, enable precision boost driver. then there's a throttle temp limit which is set to auto. You must write whatever you want, let's say 80.

why do you say your pump is not starting right away after you turn on pc? is that because you see high temps at the beginning?
It is possible that your pump is controlled by bios when the pc starts, in Windows another software takes over. for example, I set voltage in bios to very high, so pump starts fast, then in Windows, Argus Monitor brings the pump rpm down depending on the average cpu temp in past 10 seconds. I do that because sometimes water drains from CPU to reservoir, so I want pump to send water more quickly at start.


You can tell BIOS to send higher voltage to pump, that makes it stronger after you start pc. then make it more reasonable and quiet in Windows.

 

[elpumadefuego]

good.

it gets to 90 as idle? what's it doing?
under stress 90c is okay and AMD can go from 80 to 30 in a blink. that's no problem.

your temps seems ok to me, eventhough you say it was fine for 6 months. I bet you it was doing this crazy fluctuations, you just noticed them last week.

my only concern is, does it go to 90 in a spike.

You can throttle your cpu to keep it always under a specific temp. to do that, you must go to bios settings, AMD overclocking, enable precision boost driver. then there's a throttle temp limit which is set to auto. You must write whatever you want, let's say 80.

why do you say your pump is not starting right away after you turn on pc? is that because you see high temps at the beginning?
It is possible that your pump is controlled by bios when the pc starts, in Windows another software takes over. for example, I set voltage in bios to very high, so pump starts fast, then in Windows, Argus Monitor brings the pump rpm down depending on the average cpu temp in past 10 seconds. I do that because sometimes water drains from CPU to reservoir, so I want pump to send water more quickly at start.


You can tell BIOS to send higher voltage to pump, that makes it stronger after you start pc. then make it more reasonable and quiet in Windows.

It gets to 90c as idle, it's not doing anything, I also disabled a lot of SW start up's on the task manager 'cause I thought that it might have something to do.
just to be clear it doesn't get to 90c right away, it takes time, a good approximation would be 2 min, and it doesn't always get to 90 sometimes it's a litle bit less.
the only concern that I have regarding the tempetarure fluctuation is the condensation that might take place, would you say that it might happen or not?
and what happens after setting up the a throttle temp? if the CPU reaches that temp then the computer will shut down right? what would be the benefit of doing that?
and yeah, you're correct it only happens at the start up, never after, I actually stress the CPU utilizing "cinebench" the hottest it gets is 50 c degrees, which seems to be fishy.
how do I set the voltage in the bios? should I get argus monitor? I currently don't have it.

 

[LeiHeJun]

and what happens after setting up the a throttle temp? if the CPU reaches that temp then the computer will shut down right? what would be the benefit of doing that?
and yeah, you're correct it only happens at the start up, never after, I actually stress the CPU utilizing "cinebench" the hottest it gets is 50 c degrees, which seems to be fishy.
how do I set the voltage in the bios? should I get argus monitor? I currently don't have it.

the pc won't shut when CPU reaches that limit, it will just slow down. Say your CPU goes 80% usage and hits throttle temp, it just won't go any higher in usage. You can stress it and see it's stuck to 85% reaching a specified temp.

seems beneficial now, right? that was my most joyous discovery in bios settings.

50c under stress. okay now that 90c is hmm.

Bios has fan control, your pump is connected to a fan header. 5volts, 7 volts, 12 volts. you can set it as fixed or curve. then it shows you rpm. don't go extremely up and down, don't switch from trickles to flood mode.
does cinebench gets it to 100% usage, Are you taking a multicore test to reach just 50c. or is it a single core bench.
I think if you CPU under full load is 50c then your water is not moving for 90c. may be sensor reading problem. Can you touch your CPU when it's 90c? like the back of your motherboard? is it really 90c. it shouldn't burn your finger from back of mobo.

may be your bios controls the pump and when you turn the pc on, cpu is so cold. so it tells the pump to slow down. If it's too slow, you can just define the minimum for your pump to be higher.

How long are you using the cooling? is it AIO? can cpu block be opened and washed? Do you have a loop with coolant, may be you should drain and flush the coolant. just set the pump minimum to higher, I think it helps for all times. not too noisy though.

and btw, upgrade bios to latest version.

 

[elpumadefuego]

the pc won't shut when CPU reaches that limit, it will just slow down. Say your CPU goes 80% usage and hits throttle temp, it just won't go any higher in usage. You can stress it and see it's 85% reaching a specified temp.

seems beneficial now, right? that was my most joyous discovery in bios settings.

50c under stress. okay now that 90c is hmm.

Bios has fan control, your pump is connected to a fan header. 5volts, 7 volts, 12 volts. you can set it as fixed or curve. then it shows you rpm. don't go extremely up and down, don't switch from trickles to flood mode.
does cinebench gets it to 100% usage, Are you taking a multicore test to reach just 50c. or is it a single core bench.
I think if you CPU under full load is 50c then your water is not moving for 90c. may be sensor reading problem. Can you touch your CPU when it's 90c? like the back of your motherboard? is it really 90c. it shouldn't burn your finger from back of mobo.

may be your bios controls the pump and when you turn the pc on, cpu is so cold. so it tells the pump to slow down. If it's too slow, you can just define the minimum for your pump to be higher.

How long are you using the cooling? is it AIO? can cpu block be opened and washed? Do you have a loop with coolant, may be you should drain and flush the coolant. just set the pump minimum to higher, I think it helps for all times. not too noisy though.

and btw, upgrade bios to latest version.

Well then I think that I'll enable the precision boost driver since you got some experience with it,
you brought up something really interesting, this problem started when winter started, so what you said makes sense.
how can I define the minimum for my pump to be higher? got some details?
I'm kinda afraid of upgrading bios hahaha but I know that my MB has a feature for dual bios, so I shouldn't worry a lot, I'll give it a try too.
and yeah it is a AIO, I'd rather not drain the the pump since the cooler is basically new.
I'll let you know how it goes!, thanks for your help.

 

[LeiHeJun]

how can I define the minimum for my pump to be higher? got some details?

it's a fan control curve. You set a voltage for different temp intervals.
It's like an x-y coordinate system. for example under 40c give 5volts, between 40 to 60 raise it to 7 volts.

something like this:

actually in my motherboard, it's in Hardware Monitor section.

 

[elpumadefuego]

Good morning,

I upgraded my MB's BIOS yesterday, I just turned on my PC and i got the same outcome

it's a fan control curve. You set a voltage for different temp intervals.
It's like an x-y coordinate system. for example under 40c give 5volts, between 40 to 60 raise it to 7 volts.

something like this:

actually in my motherboard, it's in Hardware Monitor section.

Good morning,

Yesterday I upgraded my MB bios to F60e which is the most recent, and I modified the SYS_FAN2 curve (since is where the pump is plugged into) and I did what you suggested and I increased the RPM at start up, also I noticed that the SYS_FAN2 control was set to "auto" after doing some research I found out that the best option is "PWM", which is what I set it to afterwards, these fixed the problem.
I gotta say thank you for replying right away and sharing some of your experience with me, you helped me troubleshoot my pc and find the root cause of the problem that I came across with, thank you very much.