Garbage OC with i7 8700k ?
Garbage OC with i7 8700k ?
Hello, I just purchased an i7 8700k and am attempting to overclock it, but I'm not seeing good improvements. The motherboard is an MSI Z370 Gaming M5 and the RAM is 2666 MHz. I've confirmed the CPU is stable at its default speed. I tried changing the CPU core ratio from 47 to 50 to reach a slight boost to 5.0 GHz, but the system crashes with BSOD when running Cinebench on Windows 10 Pro. The CPU vCore is already at 1.35v and I set the Load-Line Calibration to maximum (level 1). Is this chip suitable for an OC? Any advice would be appreciated. Thanks.
You realize setting the LLC to max is going to bring the vcore way above what is safe to operate. That is probably what is shutting down your computer. Try setting it at 5.
Waitng on the MB for my 8600k. Oh by the way they supposedly overclock better then the 8700k. Guess I will find out soon.
Timmy_area51:
Intel's 1151 is now recognized as a more affordable experimental variant for their pricier sockets that will arrive later.
What? It's not a program—it's a socket.
urbancamper :
you're right about the LLC being too high—it's likely causing instability. That probably explains why your system is shutting down. Maybe lowering it to 5 would help. I'm waiting on the MB for my 8600k and wondering if they really do better overclock than the 8700k. I'll find out soon. I also tested other LLC configurations before setting it at 1, but I stuck with 5 as you suggested. At that setting, the computer won't even start Windows.
What is your method for handling heat? Perhaps it's getting too hot when starting up? Or maybe it's simply a faulty CPU. That can occur sometimes.
I don't think it's overheating because when it does boot to Windows I can check Core Temp and idle temps are around 50C. BIOS also shows similar temperatures.
Cooling solution is not something to write home about, but I have no point in improving it if the computer crashes before it even reaches high-enough temps. Cooler is a Hyper 212 LED Turbo.
Your cooling system is insufficient. To achieve stable performance at 5.0ghz you'll need a significantly better solution. You mention overheating during startup, and the computer uses all its cores, reaching full capacity quickly. Even brief periods above TJMAX will prevent booting. The Hyper 212 isn't capable of this speed. Consider these alternatives:
Your cooling system isn't strong enough. To achieve 5.0ghz stability you'll need significantly better hardware. You mention overheating when it boots, especially if it runs for even a short time. If it exceeds TJMAX it won't start. The Hyper 212 can't handle that speed. You might want to consider alternatives like the ones linked or explore a more powerful cooler such as the Kraken X62. It's worth noting you were surprised by how much heat the CPU generates during booting.