PC Lagging / Over Heating; why?

AdaAC

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Dec 30, 2015
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Hello!

So, I must admit I have had my computer for around 5 years now and I have had to change a few items like the motherboard and graphics cards most likely due to lack of cleaning. Yesterday I decided to dust clean my desktop since I havent done it in like half a year or more, and all I did was pass some dry paper towel around (there really wasn't much dust anywhere other than the filters) and I took out the CPU, cleaned the fan and the heatsink, when I put it back on the computer wouldn't turn show anything on the monitor even though the computer was acting as if it was on and the motherboard did not do it's usualy beep. I redid everything I tend to do, I removed the CPU again and made sure I placed it right and this time I removed the battery for the BIOS.

I turned the PC back on and this time it showed on screen just fine, however it gave me the warning "American Megatrends, CPU Over Tempature Error!" asked me to go to Bios but it didn't truly do anything, Asus Bios CPU bar was on red filled. so I went to the Googles and it said if I take the CPU off and the thermal paste is dry I have to clean it and apply more. To Which I did the next morning and the computer is not complaining about it again.

However, here comes the issue, I use my PC for gaming, the three games I've played so far I am lagging so much that I have to put my settings a tad lower (I have them on High or Ultra and I have to make it Med to Low for it to not bother me) so I've used iOBit scanners and checked all my drivers and everything is fine, I decided to check Bios for tempeture control, and even though it's not red, the CPU bar is basically filled. when normally it never was, did I do something wrong?

If it helps: Before I cleaned it, it was working 100% just fine.

intel core i5 3330
ASUStek P8H61-M Le/CSM R2.0 Motherboard.
16GB Ram at 666.5MHz
NVIDIA GeForece GTX 950 Zotac
Windows 7 Professional.

Games I've had the issue: Rainbowsix Siege, Overwatch and Aeriagames Eden Eternal.
 
Solution
Did you make sure the cpu heatsink is also properly and super tightly pressing against the CPU? with all the locking mechanisms properly in place? I've had serious overheating on simple old CPUs like i5 2310 jumping to 100C just because the heatsink wasn't installed properly.

Right now, give it about an hour to cool down first. Then start it up again. Even if the BIOS says CPU over temp error, just press F1 to enter setup and see if the temp readings are actually that high. Also try taking your hand physically close to the CPU Fan where it's throwing out all the heat, and feel if it's actually that hot.
its lagging because the CPU is throttled to death because its overheating. you should never remove the CPU cooler let alone the CPU because you will mess up the thermal paste so either it is overheating because you reinstalled the cooler incorrectly or the paste has be be cleaned off the CPU and cooler and be reapplied
 

Achint2000

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Feb 10, 2013
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Most likely this is the problem, you "TOOK OUT THE CPU".

You need to re-apply thermal paste and make sure the CPU Heatsink is properly in contact with the CPU otherwise the heat doesn't transfer and your CPU will overheat.

Search youtube "How to apply thermal paste", get a good thermal paste like Arctic Silver 5 or use one if you already have it.

Once again, THE METAL PIECE SHOULD PROPERLY TOUCH THE CPU's upper surface.

IF THAT DOESN'T HELP, TRY THIS:
Download "all CPU Meter" gadget, Core Temp and PCMeter. Set all these up to have a desktop gadget to continuously show CPU temperatures, that way you can check if it's "overheating". Even set an alarm for it, alerts above 85C in the gadget. Very useful.

Start a benchmark (Unigine Heaven) on extreme. Open Resource Monitor (Start+R > resmon and hit enter), go to the CPU Tab and click on "CPU" column to sort processes according to which one's using highest CPU.

If it's "svchost.exe (netsvc)", it's Windows Update doing crap and wasting bandwith. It can also be your antivirus running scans. Also download GPU-Z or ASUS GPU Tweak or any monitoring program to see if your GPU itself is overheating, just in case.
 

Achint2000

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Feb 10, 2013
692
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19,165
Did you make sure the cpu heatsink is also properly and super tightly pressing against the CPU? with all the locking mechanisms properly in place? I've had serious overheating on simple old CPUs like i5 2310 jumping to 100C just because the heatsink wasn't installed properly.

Right now, give it about an hour to cool down first. Then start it up again. Even if the BIOS says CPU over temp error, just press F1 to enter setup and see if the temp readings are actually that high. Also try taking your hand physically close to the CPU Fan where it's throwing out all the heat, and feel if it's actually that hot.
 
Solution

Achint2000

Distinguished
Feb 10, 2013
692
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19,165
The main purpose of the benchmark was to see if the CPU is being used too much by an unwanted process. It's clear that something's wrong with your reinstalling the CPU Cooler or applying thermal paste. If you're absolutely sure that you did it right, go to the BIOS and set manual CPU voltage to about 1.2v. Low voltages always help reduce CPU temperature issues. If you get a black screen, reset the BIOS by removing the CMOS battery and set the voltage slightly higher than before. Stay under 1.35v voltage.