Overclocking i5 4670k, run into troubles, weird resets and BSOD

MrSquidr

Prominent
Mar 4, 2017
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0
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So today Im overclocking i5 4670k and it seems to me that im not getting normal results.

specs:
- i5 4670k
- gigabyte z97 d3h mobo
- akasa venom voodoo cooler

i've been overclocking this cpu for last 12 hours and im still not getting good results.

First i started to ramp up cpu multiplayer and it went up to 40x without changing vcore at all i belive. than i was slowly incresing vcore and ramping multiplayer up to 45 with 1.290 V vcore wich gave me 85C when stress testing with Prime95 (26.6)... after 30min i got a BSOD do i decided to settle on 4.4 since temperatures were quite high already... so what I did is set multiplayer to 44 and vcore to 1.270 and that gave me a stable clock (so i thought) i was stressing this for little more than 1hour and it passed the test. but after playing some arma3 (maybe 1 hour of gameplay) PC suddenly restarted (no blue screen just a fast flawless restart) after that I kinda didnt know what to think so i started to change clock again. i was trying few more benchmarks (one called OCCTPT, i did PSU test which stresses ram+cpu) and it all went preaty well but when I played with discord for a bit during test computer completly froze and it didnt even want to restart anymore... so this was the scenario now... i start test and if i touch discord too much PC freezes and i need to restart it (sometimes it gave blue screen too) and it did that to preaty much every overclock i threw at it.. expect for 4.1 ghz and 1.270 vcore (which is kinda extreme) and once pc frooze even after stress test... when i halted stress test after 5 seconds it frooze.

so what im doing now is just trying again and going up clock again (I realy dont know what to think, im not even sure if this is chip problem anymore but its weird that it freezes my pc on 4.2ghz and 1.260 vcore when it was running and passed an hour long test with 4.4ghz and 1.270 vcore) right now i tried 4.4 with 1.260vcore which gave me BSOD after 45mins (now i dont touch pc at all during tests and i close down discord app) and now im trying 4.4 with 1.275 vcore... im not sure what to do... im preaty sure that this one will crash too... but it seems that no real overclock is working but its hard to belive that it's just a bad chip since it worked on 4.4 1.275 vcore before for so long.. but eventualy restarted my pc and that wasnt even during stress testing which is even more weird.. now at 4.4 and 1.275vcore (hwmonitor shows 1.296 vcore) it gets max 80 degrees and im not sure if this is too much or not, usualy its around 72-76 when stressing with prime95... im afraid that even if this is fine it will crash eventualy anyway and i'll have to lower multiplayer but than i'll have same problem as before(still freezing even on lower multiplayer) I mean it might survive prime95 but than again randomly reset my pc when not even stressing (when playing games and such) also worth noting is that i have 2 screens (if that can couse freezes during stress test ? idk) and that 4th cpu core is always cooler for about 5C during stressig...


im sorry for this long block of text, its poorly organised too, im typing it on a phone and i want some insight on what should i do and what can couse this weird results from people that are more experianced than myself on how to make sense of this and what should i do to get a more stable clock

 
Solution
You may be hitting the thermal limit. Your PC will shut down if your CPU gets too hot.

Based on what you said, I'd try 4.2 ghz and get it stable by gradually increasing the vcore. It sounds like you've hopped around a lot. Overclocking is a very incremental process and it takes a long time to zero in on the right voltage and clockspeed at an appropriate temperature.

Once you think it's stable, run prime95 overnight. Once it really is stable, if you still have thermal headroom, you could increase the clock to 4.3 and then up the vcore.

What is your CPU Cooler?

jtabb1256

Honorable
Jan 4, 2014
659
0
11,360
You may be hitting the thermal limit. Your PC will shut down if your CPU gets too hot.

Based on what you said, I'd try 4.2 ghz and get it stable by gradually increasing the vcore. It sounds like you've hopped around a lot. Overclocking is a very incremental process and it takes a long time to zero in on the right voltage and clockspeed at an appropriate temperature.

Once you think it's stable, run prime95 overnight. Once it really is stable, if you still have thermal headroom, you could increase the clock to 4.3 and then up the vcore.

What is your CPU Cooler?
 
Solution