When I play video games, my predator g3-710 becomes very loud and consumes a lot of CPU power.

@credezz

Do you get thermal grizzly kryonaut there? if not then MX-4 will do the job nicely, regardless i do think you need to reapply thermal paste, a pea sized dot in the middle of the cpu and when you mount the cooler back on then tighten it in a criss cross method it will spread out evenly.

well, no easy way to say this but i would just say that computer shouldn't be used for gaming with only 1 fan i mean all modern ones have at least 3 minimum then the fans on the GFX card.... that looks really old and dated and no rear fan or front fans wow? that's really odd. if possible, buy a new one asap. i don't think anything you do with this pc will help just my opinion.

here is a professional review on it and it's not good. and i understand what you are saying only having it 5 years and it's about 7 years old since it was introduced but it's bad really bad for gaming like i said if you can afford it get a new one this one has no upgrade options really read the review and keep in mind its only 1 person's opinion, but it matters.

Acer Predator G3 review | TechRadar

Hi @credezz

That's no problem, just watch a Youtube video as a guide, there's alot of videos on there explaining the process.

you need a general cleaning mate

1. turn off your desktop computer
2. disconnect the plug from the outlet
3. disconnect all cables connected to the system unit (desktop computer)
4. remove the case side panel screws
5. remove the case side panels left and right
6. always wear your antistatic wrist strap on your wrist then connect the other end to the metal part of the system unit
7. put antistatic mat next to your system unit
8. touch both your fingers on the power supply to remove the static electricity from your body (useful if you have no antistatic wrist strap - means your one hand permanently touching the power supply while the other hand doing the disassembly/assembly of the sensitive components) ----- but assuming you have your antistatic wrist strap, there is no need to permanently touch the power supply
9. before disassembly, take a picture of the placement of each components especially the jumpers and small cables like hdd, power, reset, etc. for easy reference in assembling back the components. you can draw a diagram also if you prefer.
10. disassemble all the components from the system unit, clean each of them using new paint brush and then use blower to completely remove the dust particles (do this on a well ventilated area, use clear googles and face mask/face shield)
11. put the cleaned components on the antistatic mat
12. remove the processor and heatsink
13. wipe clean the old thermal paste from the processor and heatsink then put a new thermal paste
14. remember to remove all the attached components from the motherboard including the jumpers and cables so as to hard reset the mobo (motherboard) to its original state.
15. assemble all the components back to its place, refer to the pictures taken from camera or the diagram you made as stated in step 9.
16. do not put back the case side panels or the system unit cover so the heat can dissipate faster
17. put your system unit on an upright position/standing position so the air can pass through
18. put your system unit near (or directly on the fan) of the air conditioner or you can use electric fan to blow air directly on the system unit especially mobo (motherboard) and the CPU.
19. inspect the CPU fan if it spins fast. it is normal for the CPU fan to be loud when it spins fast to help dissipate the heat absorbed by the heatsink from the processor.
20. clean thoroughly the CPU fan or replace it. CPU fan also becomes loud when it is dirty.
21. you can monitor the CPU fan rpm in the BIOS or use third party software.

that's awesome keep us posted and add pictures so we can see what Ya did but don't stop at one fan add one to the rear and front if possible and get a better cooler that will help the most anyone here will tell you that. most of us myself included have added more fans and better coolers etc. to help out.

well, when u get the new fan i meant mount your old CPU fan on the rear it has holes for a fan just make sure it is pulling-pushing air out the back and then you just need a y cable and plug it in the same slot it is now. then you will have at least 2 and you can mount most likely a few different coolers to this system what's the exact model I'll try and figure it out for you? unless you're not interested then i understand and it's all good let me know buddy.