I7 4790k @ 4.9ghz 1.35v
I7 4790k @ 4.9ghz 1.35v
Is 1.35v suitable for continuous use of 18 hours a day?
My chip is delidded, I’m using a Kraken X61 and operating under 80°C during peak load 95V26.6.
CPU-Z displays 1.35v, which I also set in the BIOS.
But during the stress test, HWmonitor reports 1.38v—does this seem typical?
That overclock looks solid. The high voltage is acceptable for reaching 4.9ghz. Running my 5ghz chip at 1.45v caused issues, so I’m now using 4.7 with 1.35v. My stability drops to 4.4 at 1.21v. For better longevity, I’d consider lowering it to 4.8 or 4.7 while keeping voltage under 1.31v.
That overclock looks solid. The high voltage is acceptable for reaching 4.9ghz. Running my 5ghz chip at 1.45v caused issues, so I’m now using 4.7 with 1.35v. My stability drops to 4.4 at 1.21v. For better longevity, I’d consider lowering it to 4.8 or 4.7 while keeping voltage under 1.31v.
That overclock looks solid. The voltage stays high but isn’t excessive for a 4.9ghz setting. Running the 5ghz chip at 1.45v caused issues with electron movement, making it unstable at 4.7v and 1.35v. I’m now limited to 4.4v and 1.21v just to keep things stable.
I remember needing around 1.375v for full stability at 4.9ghz. At 4.8ghz it’s about 1.332v, but I’m unsure how low 4.7v can go. How long did you run the chip at 1.45v?
EDIT: 1.24v for 4.7ghz stable at 58°C with full load in prime95 small ffts v26.6.
I’m leaning toward 4.8ghz at 1.332v since I’ve got great temps, though only that low at high load. My BIOS voltage is 1.305v.
That sounds good.I had my chip at 1.45v for about 6 days before it needed more voltage. And then at 4.9ghz it lasted 3 days before needing more voltage.