1366 socket 960 i7 OC issues with custom PC case heat management
1366 socket 960 i7 OC issues with custom PC case heat management
So, I own an old PC that still handles games at ultra 1080p smoothly, and it performs really well in tasks. However, because of my new GPU or incorrect CPU overclocking settings, the machine gets very hot under load—temperatures reaching 80°C at 90% load, and even with BIOS protection, it underclocks when it hits 80°C and drops to 3.2GHz from 4.0GHz. At idle, it stays around 47°C (C1 state off) and reaches 55-60°C during gaming.
I’m aware that my current setup—using a socket, an OC-enhanced CPU, and a basic airflow—is impressive, but I’d like to reduce the CPU temperature further and improve the motherboard’s temperature, ideally keeping it at 60°C constant on the north bridge.
I’ve considered several solutions so far:
1. Installing water cooling for the CPU, perhaps with a Corsair Hydro H80i v2?
2. Replacing my old i7 960 with a used Xeon from eBay (6 cores, OC back to 4GHz), would that really help?
3. Upgrading the PC case airflow—currently I have three high CFM fans for intake and one 14cm for exhaust; adding another might make a big difference?
4. A combination of all these changes?
I’m open to suggestions, so what do you think is the best approach?
I’ve already reapplied thermal paste on the CPU, which reduced temperatures by about 10°C after four years. I also tried lowering the CPU a bit, but Windows won’t boot properly, and most settings are auto. Enabling C-states and dynamic voltages causes the motherboard to adjust voltage itself, which helps when the PC isn’t in use. If I disable all these protections and set the voltages manually, I’m certain temperatures will spike even higher.
Any advice would be greatly appreciated—help me avoid replacing the whole system (new GPU, CPU, RAM) which could cost around 700 euros or more! 😱
Loss of VRM cooling is a frequent issue with water cooling systems. It can be easily addressed if you're informed about it. Unless your application demands more than 6 cores or 12 threads, the 32nm 4 core 8 thread Xeon should operate cooler and/or run at a higher clock speed than currently available. You may consider using a larger cooler such as the Scythe Ninja 4.
The fan on the CPU only cools the CPU itself. To improve cooling, you should either add a strong intake fan or two to draw in cooler outside air, or one or two exhaust fans to expel hot air. Also, ensuring good airflow over the VRM MOSFETs is crucial, which usually means prioritizing intake fans. An example CPU to consider is the X5687, a 32nm 4-core 8-thread processor running at 3.6/3.89 GHz. It seems compact, fitting neatly into a desk drawer. Keep cool air coming in and hot air going out. Make sure it doesn’t create a loop that brings air back in.
I have three 12 CM fans with strong airflow for intake and one 14 CM fan for exhaust, but they aren't reaching the VRMs or the motherboard directly. The air stays above the motherboard, hitting the GPU, CPU, and PSU instead. Perhaps I should install fans that connect directly to the motherboard? At least one of these three could help. Regarding the CPU cooling, it might not be a good idea—it could lead to issues. Once the new cooler is installed, I should boost the airflow again, as the current setup won't work.
Loss of VRM cooling is a frequent issue with water cooling systems. It can be easily addressed if you're informed about it. Unless your application demands more than 6 cores or 12 threads, the 32nm 4 core 8 thread Xeon should operate cooler and/or run at a higher clock speed than currently available. You may consider using a larger cooler such as the Scythe Ninja 4.