Can't get i5 8600k past 4.6ghz
Can't get i5 8600k past 4.6ghz
I really don’t know where to begin
The specs are: CPU i5 8600k, cooler Lepa aqua changer 120 w/push pull config, GPU gigabyte Aorus extreme gaming gtx 1080ti, RAM team force ddr4 2400mhz, MOBO gygabyte z370 gaming 5 (rev1), PSU thermal take 80+ gold 750w.
I finally managed to upgrade the monitor from 1080p60 to 1440p144, so I thought about overclocking to make better use of it.
I started with the CPU, but it wasn’t stable at 5ghz—1 or 2 cores always failed. I pushed it up to 1.45 and 4.9, but it was unstable too, and I kept hitting 100c on prime95. After some testing, I settled on 4.6ghz at 1.3v, though that seems very high for this CPU. Even then, I still reached 96c during the max heat stress test.
First I replaced the thermal paste, but it had no impact. Then I updated the BIOS to version f10 from f3, which made things worse: all the LEDs on my MOBO stayed off except the PCI slots, which were blue, and rolling back to f7 didn’t help.
The LED issue alone wasn’t serious, but now I’m questioning if the motherboard is affecting my overclocking attempts.
I need the computer for classes—it can’t be down for long if I want to keep it in use.
Please help me.
120 AIOs usually underperform compared to a quality air cooler. You should stick with version v26.6 of P95. Higher models tend to produce overly high temperatures. It should be possible to achieve around 4.7 for all cores at about 1.26.
I would prefer to use the latest BIOS release, even with the glitch led behavior.
2. The maximum safe voltage level is approximately 1.4v, giving you some margin.
3. Your ability to handle a 8600K depends largely on the quality of the chip you select.
As of 3/22/2018:
- Approximately 96% of I5-8600k chips can operate at an aggressive vcore of 1.4 and beyond.
- 85% at 5.0, 66% at 5.1, 38% at 5.2, and 13% at 5.3.
4. Currently, performance is constrained by temperature. At 100°C your chip will slow down or shut down to safeguard itself.
Keep in mind these figures apply to a processor with a defective chip. You shouldn’t expect high performance.
5. For optimal CPU cooling, the AIO radiator should draw fresh outside air.
This creates a paradox because using it would increase heat on the motherboard and graphics card.
6. What’s your case?
A solid cooling case should include at least two front intake fans of 120/140mm.
If you have an additional 160mm, a high-quality twin tower air cooler such as the Noctua NH-D15s would perform comparably to any AIO solution.
7. What should you do?
In reality, you probably don’t need to do anything. A score of 4.6 is excellent for most applications.
I’d prefer to use the latest BIOS version, even with the glitch led behavior.
The maximum safe voltage is about 1.4v, giving you some margin.
Your ability to achieve a 8600K depends largely on getting a quality chip.
As of 3/22/2018, approximately 96% of I5-8600k chips can handle an aggressive vcore around 1.4 and still function normally.
5.0 – 85%, 5.1 – 66%, 5.2 – 38%, 5.3 – 13%.
Currently, performance is limited by temperature; at 100°C the chip will slow or shut down to protect itself.
These figures apply to a processor with delidding. You won’t achieve similar results.
For optimal cooling, the AIO radiator should draw fresh outside air.
This creates a paradox: using it would raise temperatures and affect other components.
Finally, what you should do is simply wait. 4.6 is quite acceptable for most tasks.
After updating, the LED issue was resolved by temporarily disconnecting power to the motherboard.
My cooling setup includes two 140mm intake fans, a 120mm push-pull fan, and separate intake and exhaust fans on my Phantom P350X.
It’s surprising I ended up with such poor luck with my chip. Could my VRMs be contributing to instability? Might a better CPU cooler help overclocking, or should I invest in delidding tools?
Another thing is My aqua changer 120, I Often hear bubbles in it could this be effecting my temps.