The i5 4690K appears to be damaged due to an accidental overclock.
The i5 4690K appears to be damaged due to an accidental overclock.
I recently began assembling my first computer. I discovered an Asrock H97m Pro4 on clearance and an i5 4790k. I paid roughly $175 for both. After connecting everything and entering the BIOS, I observed the CPU was operating at 4.5GHz. That was unusual. The idle temperature was around 75°C. I thought the issue might be with the heatsink placement, so I turned it off and adjusted it. Still, the CPU remained at 4.5GHz with a temperature near 75°C, but this time I noticed the voltage was just over 1.41V, which seemed unusually high.
It turned out I could actually overclock the CPU on this H97 board, something I was completely unaware of. The previous owner had significantly increased the CPU's overclocking level. Before making any changes, I didn’t examine the custom OC settings closely. I reset everything to the default configuration and then reprogrammed the board. There’s an option to disable automatic throttling, but I wasn’t sure if it was enabled.
My main concern is whether this could have caused harm to the CPU if it had been idle at the BIOS screen for about 45 minutes. I also want to confirm the warranty is valid until October 2018. I’m weighing whether it’s worth bringing this CPU back to Microcenter and spending an extra $40 for a new one, given the possibility it might be damaged.
Madmatt30 shares the experience with full voltage and clocks, but without load. The 75c and 1.4v settings were clearly high, yet not close to the chip's lethal temperature. Thanks! I won't be overly concerned about it now. Have you used H97 boards before that allow CPU overclocking? I purchased it without the intention of OC, but if that's a viable option now, I might think about it.
You can overclock any Intel CPU on any h97 board using blck overclocking mate.
Its the old skool way of doing things before cpu's were unlocked.
Not easy though & no guarantees on results.
However I don't think this is what was done on your board, what can be done is setting the multiplier to turbo speed 4.4ghz on all cores.
That's a one click bios setting & can be done with literally any Intel CPU (locked or unlocked) on just about any board.