[SOLVED] High CPU temps and 100% usage after cleaning PC.

[Killer0pro1]

So on average i had 60-65c temperature of my CPU on heavy load and 30 in idle, it started to go to 50c on idle but heavy load remained about same 60-65, so i decided to replace thermal paste and clean my radiator from dust, hoping it will be fine. But now my CPU goes over 80c on heavy load and its usage in games always 100% while GPU 20-40%, games i played fine before now unplayable, shuttering or/and run at low fps. And idle temp still 50c. It could be that my pump been dead and CPU was cooled passively for past few weeks as during heavy loads i just cant feel hot air blow from radiator its cool instead, but i can't quite explain why the usage always 100% and games that worked fine before now lag?

AIO: Corsair Hydro Series H80i V2
CPU: i5-6600k


P.s. touched AIO houses, one is warm while other cold so pump is working, so this makes me even more confused.

 

[JohnBonhamsGhost]

if your pump was totally dead your system would reach critical temperature within a few moments of booting.
it's more likely that it was reinstalled incorrectly in some way; maybe not tight enough, maybe off-center, etc.

the temperature has nothing to do with CPU usage so the % wouldn't climb due to malfunctioning cooler.
there's a small chance the CPU was knocked out of sorts in some way but i've never encountered this type of issue where the system still functioned.

i would disconnect and reseat everything(RAM, disks, cables, everything) making absolute sure all is reinstalled perfectly.

and while you have the radiator & block outside of the system rotate and maneuver it all around flexing the tubes in all ways.
it's possible that some bubbles or other blockage may have made it's way into the pump or lower into the tubes and is causing some sort of blockage now.
maneuver it all about trying to lead this blockage to the top of the cooling system where it won't get pumped back down into the works can help in these cases.

 

[Roger...]

This information reports the lessons I've accumulated from my years of assembling computers.

Your message gives me the impression the cooler is too small for the heat it is generating. It could also be that the thermal compound you applied to the chip was too thick to facilitate the absorption of the CPU's heat.

If you are using a cooler with a single fan, a cooler with twin fans might be needed.

Single fan coolers can improve their ability to reduce heat when there is a fan pushing and a fan pulling.

If the cooler you are using is old, your results might indicate too much water has been lost over that time. Consider, water can escape through the hoses that move the water from the heat sink to and through the radiators.

Radiators in service for a while need the fins spaces in a radiator to be cleaned. I use an air compressor, but hot water pressure can help to clean the fin surfaces to allow the fan to push it away from the computer.

Each water cooling device uses a pump that has an impeller that pulls water from the radiator and pushes heated water to the radiator. This water exchange is how a heat sink surface absorbs CPU heat.

Take the temperature between the hoses to see if you have at least a temperature difference of 10 degrees.

If you put more than a green pea vegetable size on the chip and didn't spread it across the CPU surface so that it is very thin you might be insulating the cooling surface of the pump end of the cooler from absorbing enough heat from the CPU.

When spreading thermal paste, always leave an area on each edge of the CPU's surface so that it doesn't squeeze paste out over the edge.

The hot paste can flow over the CPU edge and it can come in contact with the CPU or the socket pins. When that happens, it can cause the motherboard to act in ways it never did before. If it happens for a while, it can cause motherboard component failure.

When I put thermal paste on a CPU, I always leave an area of 3/16 inch on all four edges so the distance the thin later of paste will be unable to flow over the CPU edge.

 

[Killer0pro1]

if your pump was totally dead your system would reach critical temperature within a few moments of booting.
it's more likely that it was reinstalled incorrectly in some way; maybe not tight enough, maybe off-center, etc.

the temperature has nothing to do with CPU usage so the % wouldn't climb due to malfunctioning cooler.
there's a small chance the CPU was knocked out of sorts in some way but i've never encountered this type of issue where the system still functioned.

i would disconnect and reseat everything(RAM, disks, cables, everything) making absolute sure all is reinstalled perfectly.

and while you have the radiator & block outside of the system rotate and maneuver it all around flexing the tubes in all ways.
it's possible that some bubbles or other blockage may have made it's way into the pump or lower into the tubes and is causing some sort of blockage now.
maneuver it all about trying to lead this blockage to the top of the cooling system where it won't get pumped back down into the works can help in these cases.

Did all that, but nothing seems to be changed.

This information reports the lessons I've accumulated from my years of assembling computers.

Your message gives me the impression the cooler is too small for the heat it is generating. It could also be that the thermal compound you applied to the chip was too thick to facilitate the absorption of the CPU's heat.

If you are using a cooler with a single fan, a cooler with twin fans might be needed.

Single fan coolers can improve their ability to reduce heat when there is a fan pushing and a fan pulling.

If the cooler you are using is old, your results might indicate too much water has been lost over that time. Consider, water can escape through the hoses that move the water from the heat sink to and through the radiators.

Radiators in service for a while need the fins spaces in a radiator to be cleaned. I use an air compressor, but hot water pressure can help to clean the fin surfaces to allow the fan to push it away from the computer.

Each water cooling device uses a pump that has an impeller that pulls water from the radiator and pushes heated water to the radiator. This water exchange is how a heat sink surface absorbs CPU heat.

Take the temperature between the hoses to see if you have at least a temperature difference of 10 degrees.

If you put more than a green pea vegetable size on the chip and didn't spread it across the CPU surface so that it is very thin you might be insulating the cooling surface of the pump end of the cooler from absorbing enough heat from the CPU.

When spreading thermal paste, always leave an area on each edge of the CPU's surface so that it doesn't squeeze paste out over the edge.

The hot paste can flow over the CPU edge and it can come in contact with the CPU or the socket pins. When that happens, it can cause the motherboard to act in ways it never did before. If it happens for a while, it can cause motherboard component failure.

When I put thermal paste on a CPU, I always leave an area of 3/16 inch on all four edges so the distance the thin later of paste will be unable to flow over the CPU edge.

This AIO worked fine, kept temps under 70c all day as i gamed, it cant just suddenly break in few minutes as i changed paste🤔
Took a second look, paste was well spread on CPU.
Am using a sandwich, fan intake air into radiator and on top of it another fan blow air out of it (both fans blow air in same direction).
This AIO is not new, but its mounted on top of the case, so i don't think it will have any lack of liquid issues yet.
I cleaned rad from dust when i was replacing paste.
At 80c i can feel the difference, one hose is cold while other very hot, definitely way above 10c difference.
Paste been applied and spread fine, no leaks over CPU edges after removing pump.

 

[JohnBonhamsGhost]

its mounted on top of the case

try seating the push/pull fans & radiator as rear exhaust with the tubes running from the bottom of the radiator.
see if temperatures change at all.

 

[Killer0pro1]

try seating the push/pull fans & radiator as rear exhaust with the tubes running from the bottom of the radiator.
see if temperatures change at all.

Will try do it tomorrow as its pretty late now. But what could be an issue with 100% load and lagging in games where this never happened before?

 

[JohnBonhamsGhost]

what could be an issue with 100% load and lagging in games where this never happened before?

only if you somehow damaged CPU pins, somewhat unseated or damaged other components, your system settings were somehow changed/reset in the BIOS, you've been infected with malware, or a device is failing just as a coincidence of the time you decided to clean the system.

what make & model of power supply are you using and how long has it been in use?

 

[Killer0pro1]

only if you somehow damaged CPU pins, somewhat unseated or damaged other components, your system settings were somehow changed/reset in the BIOS, you've been infected with malware, or a device is failing just as a coincidence of the time you decided to clean the system.

what make & model of power supply are you using and how long has it been in use?

Corsair RM650i, bought 2016-05-18 using probs since about 2016-07-20

 

[JohnBonhamsGhost]

the RMi units are pretty high quality so i wouldn't pick it as a culprit right off the bat but being ~6 years old and it could be showing signs of age.
if nothing else happens to help correct the issue with high usage and games lagging, i would consider testing with a different model.

 

[mdd1963]

P.s. touched AIO houses, one is warm while other cold so pump is working, so this makes me even more confused.

The fact that one hose is cold actually means the pump is likely NOT working...

The CPU is likely overheating, and downclocking itself to 800 MHz or so....

Get a new cooler. (No need for any AIO for that CPU anyway)

 

[Killer0pro1]

the RMi units are pretty high quality so i wouldn't pick it as a culprit right off the bat but being ~6 years old and it could be showing signs of age.
if nothing else happens to help correct the issue with high usage and games lagging, i would consider testing with a different model.

Next month will be buying PSU for new PC, gonna test with new one will it make any difference.

The fact that one hose is cold actually means the pump is likely NOT working...

The CPU is likely overheating, and downclocking itself to 800 MHz or so....

Get a new cooler. (No need for any AIO for that CPU anyway)

Will try get some tower cooler to see if it could show any change. But i don't think overclocked CPU would just peak at 80c while under 100%, with not working cooler it probs would fried itself.

 

[Killer0pro1]

So after booting World War Z aftermath today, temps dropped from 70-75 to 50-55 average FiveM, Age of Empired DE and Die Young about same, while idle from 50 to 35-40. Usage still 100%, could it be that maybe not all cores are working or something?