F5F Stay Refreshed Power Users Overclocking high thermals i7-3770 - 212, delid or lap?

high thermals i7-3770 - 212, delid or lap?

high thermals i7-3770 - 212, delid or lap?

S
Superlenthe
Junior Member
9
04-19-2025, 12:43 AM
#1
Hello. I haven’t worked with PCs in ten years since setting up my i5 machine.
I just bought a refurbished i7-3770 (non-K) and it’s running at around 4.3mHz, but according to RealTemp, the average temperature is about 60°C during work hours, with Prime95 hitting over 90°C. (I reached 4.4 at 1.3v but temperatures stayed high, causing throttling.)
So far, the system has stayed stable across all tests and voltages, never crashing and only using the original cooler.
My questions:
What temperature ranges should I expect?
Does a Hyper 212 cool enough to keep things down to reasonable temps without excessive noise?
Would it help to split the chip since it’s old or replacing it?
Thank you!
S
Superlenthe
04-19-2025, 12:43 AM #1

Hello. I haven’t worked with PCs in ten years since setting up my i5 machine.
I just bought a refurbished i7-3770 (non-K) and it’s running at around 4.3mHz, but according to RealTemp, the average temperature is about 60°C during work hours, with Prime95 hitting over 90°C. (I reached 4.4 at 1.3v but temperatures stayed high, causing throttling.)
So far, the system has stayed stable across all tests and voltages, never crashing and only using the original cooler.
My questions:
What temperature ranges should I expect?
Does a Hyper 212 cool enough to keep things down to reasonable temps without excessive noise?
Would it help to split the chip since it’s old or replacing it?
Thank you!

H
heroboy17
Senior Member
528
04-20-2025, 10:50 PM
#2
Fellow i7-3770 (non-K) overclocker here.
Looks like you're boosting the BCLK as well, not just the +4 multi.
A 212 EVO (or Black) should give sufficient cooling.
1.3V seems too high. At the typical 4.3GHz (single core), what's the minimum stable voltage?
Prime 95 handles an AVX workload by default, which puts extra strain on the CPU and raises temperatures beyond what you'd expect from normal use. You can turn off AVX at the bottom of the stress test screen if needed.
Delidding usually helps with temperature. Since you're still using the stock cooler, it makes sense to take it step by step.
H
heroboy17
04-20-2025, 10:50 PM #2

Fellow i7-3770 (non-K) overclocker here.
Looks like you're boosting the BCLK as well, not just the +4 multi.
A 212 EVO (or Black) should give sufficient cooling.
1.3V seems too high. At the typical 4.3GHz (single core), what's the minimum stable voltage?
Prime 95 handles an AVX workload by default, which puts extra strain on the CPU and raises temperatures beyond what you'd expect from normal use. You can turn off AVX at the bottom of the stress test screen if needed.
Delidding usually helps with temperature. Since you're still using the stock cooler, it makes sense to take it step by step.

J
JordanMurphy86
Junior Member
27
04-20-2025, 11:06 PM
#3
This i7-3770 (non-K) overclocker setup seems to involve boosting BCLK as well as the +4 multiplier. A 212 EVO (or Black) chip should offer sufficient cooling. The 1.3V setting appears too high; at the typical 4.3GHz single-core speed, what stable voltage would be needed is unclear. Prime 95 handles AVX workloads by default, which can stress the CPU beyond normal operation and raise temperatures significantly. You can disable AVX on the stress test screen if desired. Removing the cooler entirely would likely help temperatures, but since you're still using the stock cooler, a gradual approach seems safer.
J
JordanMurphy86
04-20-2025, 11:06 PM #3

This i7-3770 (non-K) overclocker setup seems to involve boosting BCLK as well as the +4 multiplier. A 212 EVO (or Black) chip should offer sufficient cooling. The 1.3V setting appears too high; at the typical 4.3GHz single-core speed, what stable voltage would be needed is unclear. Prime 95 handles AVX workloads by default, which can stress the CPU beyond normal operation and raise temperatures significantly. You can disable AVX on the stress test screen if desired. Removing the cooler entirely would likely help temperatures, but since you're still using the stock cooler, a gradual approach seems safer.

R
Razlorus
Posting Freak
976
04-21-2025, 06:31 PM
#4
Thank you, disabling AVX yielded better, and usable results.
Yes I have increased the BCLK. Also, I totally misread the voltage readout.
So I have set the BCLK to 102, @ 43,43,42,41 for the cores. (I hope I'm saying this right!)
The CPU voltage is at 1.192v and I haven't tried to set it lower (BIOS reports 1.184v sometimes, too)
This yields 4,385MHz and 86-87 degrees under Prime95
Sound about right?
New cooler on it's way, then and we'll go from there. 100 degrees had me scared
Thanks - your casemod is fantastic btw!
R
Razlorus
04-21-2025, 06:31 PM #4

Thank you, disabling AVX yielded better, and usable results.
Yes I have increased the BCLK. Also, I totally misread the voltage readout.
So I have set the BCLK to 102, @ 43,43,42,41 for the cores. (I hope I'm saying this right!)
The CPU voltage is at 1.192v and I haven't tried to set it lower (BIOS reports 1.184v sometimes, too)
This yields 4,385MHz and 86-87 degrees under Prime95
Sound about right?
New cooler on it's way, then and we'll go from there. 100 degrees had me scared
Thanks - your casemod is fantastic btw!

A
Alexiopro
Member
91
04-21-2025, 06:48 PM
#5
Yes, that matches your findings well. I'm currently at 1.15V and there are no BCLK modifications. Appreciate the feedback!
A
Alexiopro
04-21-2025, 06:48 PM #5

Yes, that matches your findings well. I'm currently at 1.15V and there are no BCLK modifications. Appreciate the feedback!