The first core is operating significantly warmer than expected.
The first core is operating significantly warmer than expected.
Hey guys,
Im not all that much experienced when it comes to overclocking. But i've been testing this clock for a while now. Its 4.5Ghz across all cores and the vCore voltage is 1.195v. The other cores a fine but the first core can get up to +20c hotter than the other cores. The first core is also more jumpier.
Here is some temp data monitored and recorded in a .gif:
Any ideas on what's causing this? If its specifically hardware related, fat chance for RMA im guessing?
CPU: I5-4690k
CPU Cooler: FrostFlow 240mm
Mobo: MSI Z97 Gaming 5
Psu: XFX XXX Pro 750W
Are you checking for the newest BIOS update for your motherboard? Are you running stress tests on the CPU to measure temperatures or during gameplay? If stress testing, which application are you using? If so, those temperatures represent an extreme worst-case scenario, as games wouldn't push it that high. Also, please share the RAM manufacturer and model along with the operating system you're using.
The specifications are as follows:
Processor: I5-4690k @4.5Ghz (all cores) with vCore 1.195v.
Cooler: FrostFlow 240mm
Motherboard: MSI Z97 Gaming 5
Memory: Corsair Vengence 4x4Gb @ 2Ghz
Graphics: MSI GTX 970
Storage:
- Sandisk - M.2 128Gb
- Western Digital - SSHD 1Tb
Power Supply: XFX XXX Pro 750W
Case: Kolink Punisher
Operating System: Windows 10 Pro
Stress testing was conducted using MSI ¦ Intel XTU, with monitoring done via CPUID's HWMonitor. The BIOS is up to date, and although XTU is used, overclocking has been performed in the BIOS rather than directly in XTU.
Core fluctuations are typical during gameplay. In stress testing tools such as AIDA64 or OCCT they don’t apply, and should only change a few C values at a time. Usually if one core is significantly different from the others it indicates uneven cooling screw tightness or uneven thermal paste application. Note that CPUID isn’t fully reliable. The programs I mentioned include built-in temperature monitoring that I find more precise.
With this in mind, your temperatures during a 4.5GB overclock on a 4690K are significantly higher than what you’d expect with FrostFlow’s 240L. For context, my Noctua NH-D14 air cooler maintains the 4690K at 65°C at 4.7GHz with a temperature of 1.297v. The 240L offers 3-4 degrees better performance than the NH-D14. All these results assume you’re not facing technical issues like an air bubble in the line or fans stuck in silent mode.
10tacle :
This is all assuming of course you don't have a technical problem like an air bubble in the line or the fans aren't stuck in silent mode or something.
Well the sound rams up when i do start a test so its not that im guessing. As for air bubbles, i can't be too sure on that one but i'd feel like all cores would take a hit if that was the case. So it's worth cracking off the heat sink and checking the thermal paste? Im using MX-2 Paste BTW if that is relevant, heard it's pretty good. Right now my package temperatures are about 44c stable with the cpu only at 5% usage.
I'll check back further concerning 10tacle's feedback. I plan to swap out the thermal compound and adjust the heat synchronization for a more even result.
10tacle :
Try running one of those stress test programs I mentioned too and get back to us.
Sorry for late reply. I just realized... I dont know how i didnt before but there is a massive crack in the copper. I think it cracked more and expanded when it was getting even hotter. idk but RMA'ing the cooler. This is the 2nd cooler i've had to RMA in a row. xD