Worst luck of the draw 4790k
Worst luck of the draw 4790k
In short, I purchased a 4790k about a month ago and attempted some basic overclocking. I aimed for a higher speed but only managed to reach stability at 4.4ghz with Prime95's latest update. The stable result came at 1.175 vcore under full load, while Prime95 averaged around 77°C during performance mode. I lowered the target to 1.150 to reduce heat, but experienced a BSOD after half an hour of stress testing. My system specs are: I7 4790k, MSI Z97 Gaming 5, Corsair H100i GTX on pull exhaust, Samsung 850 EVO 250GB, MSI GTX 970 gaming 4G, Corsair 450D, Corsair RM750 in 80+ gold mode, ambient around 30°C, idle at about 38°C at 4.4ghz adaptive, default settings 37°C idle and 65°C full load at 4.0ghz. Did I end up with the worst performance? Or am I making a mistake? Is this a CPU fault, and can I return it for repair? I’ve seen many discussions about this and noticed others achieving better results at lower temperatures. Any expert guidance would be appreciated.
saternal :
Johnpombrio :
I got 4.4GHz on air with no voltage increase and at around max 73 C but even going to 4.43Ghz on water and the chip topped out on thermals So there is hard wall on DC. On Ivy Bridge, I never got above 4.2 on water so it's not you or your mobo, just the chip.
So I presume if I call intel about this worst luck of the draw chip of mine they will just disregard it right?
Yes. The chip works. At least at stock speed and voltages, so it's not faulty. That's just the way it is. My last chip (FX-8320) also was very bad.
I received my [email protected] with 1.4V and it seems like I got a lower quality one.
Each chip is unique, it's not defective—it's simply not a standard one. Yeah, I understand that all chips are different, but considering how badly my chip OCs I experienced, I believe I might have hit a rare chance to get the worst 10% of all 4790k chips. Will Intel consider accepting an RMA for this kind of poor performance?
Received my [email protected] with 1.4V, probably not the best one.
What about your temperatures? Does it hit the high 70s with that setting?
saternal :
Enderegg :
I got my [email protected] w/ 1.4V Pretty sure I got a worse one.
How about your temps though? Does it reach the high 70s with that OC?
Not even close. About 65C with Intel Burn test, at maximum. But I think the max safe temp is 80/85, so even if I was reaching 70 I wouldn't be stressed about it
I received my [email protected] with 1.4V, and I'm pretty sure it's not as good as it could be.
What about your temperatures? Does it hit the high 70s with that OC?
Not really. Around 65C during the Intel burn test, which is the highest I've seen. But I believe the safe upper limit is 80 or 85, so even if it reached 70, it wouldn't be a big concern.
Is the Intel burn test a better tool for testing OC? I saw somewhere that the newest version of prime95 is too CPU-intensive, causing higher temperatures during testing.
I received 4.4GHz on air without any voltage boost and at roughly 73°C, but reaching 4.43Ghz in water caused the chip to hit its thermal limit. There seems to be a hard wall on DC. On Ivy Bridge, I never exceeded 4.2Ghz in water, so it's not your card or motherboard, just the chip itself.
Johnpombrio shared his experience regarding the stability of his setup. He noted consistent performance at 4.4GHz with no voltage changes and high temperatures, but issues arose when increasing to 4.43GHz on water. The problem seemed tied to the chip rather than the motherboard or card. He wondered if contacting Intel would be a viable solution.