F5F Stay Refreshed Power Users Overclocking overclocking i5 4690k with voltage considerations

overclocking i5 4690k with voltage considerations

overclocking i5 4690k with voltage considerations

J
JoanGasu
Junior Member
14
11-19-2016, 12:35 PM
#1
Hello hello,
I have a brief inquiry about overclocking my i5 4690k. To give you some context, I’m new to this process and did thorough research beforehand. My current setup is:

Processor: i5 4690k
Motherboard: MSI z97 Gaming 7
RAM: Ballistix Sport 8GB x2
Cooler: Noctua NH-U14S
GPU: Gigabyte Windforce GTX 980ti
Power Supply: Seasonic SS-860XP2 860W

I’ve gradually increased the CPU speed according to the guides I followed. I reached a stable overclock of 4.6ghz with a voltage of 1.275V, and temperatures stayed around the 50s and 60s during an AIDA64 stress test. My goal is to push it up to 4.7, but I’m limited to 1.3V or less without risking instability. Currently, I’m running a stress test at 1.31V, which has kept temperatures steady in the 60s with occasional dips into the low 70s.

I’ve noticed that at this voltage, the temperatures are still manageable, though I’m concerned about long-term effects. Could you clarify whether higher voltages only increase heat and risk damage, or if there are other factors at play? Understanding this better would help me make an informed decision.

Thank you for your assistance.
J
JoanGasu
11-19-2016, 12:35 PM #1

Hello hello,
I have a brief inquiry about overclocking my i5 4690k. To give you some context, I’m new to this process and did thorough research beforehand. My current setup is:

Processor: i5 4690k
Motherboard: MSI z97 Gaming 7
RAM: Ballistix Sport 8GB x2
Cooler: Noctua NH-U14S
GPU: Gigabyte Windforce GTX 980ti
Power Supply: Seasonic SS-860XP2 860W

I’ve gradually increased the CPU speed according to the guides I followed. I reached a stable overclock of 4.6ghz with a voltage of 1.275V, and temperatures stayed around the 50s and 60s during an AIDA64 stress test. My goal is to push it up to 4.7, but I’m limited to 1.3V or less without risking instability. Currently, I’m running a stress test at 1.31V, which has kept temperatures steady in the 60s with occasional dips into the low 70s.

I’ve noticed that at this voltage, the temperatures are still manageable, though I’m concerned about long-term effects. Could you clarify whether higher voltages only increase heat and risk damage, or if there are other factors at play? Understanding this better would help me make an informed decision.

Thank you for your assistance.

D
DrPingouin
Member
214
11-20-2016, 11:41 AM
#2
Initially ensure c-states are activated (auto isn't consistently enabled) and power is set to balanced. This prevents the chip from detecting excessive voltage when not under stress, thus extending its life. Is the 1.31 Vcore listed in the BIOS or shown in a program such as hwinfo64 while under load? You might actually be receiving more voltage than anticipated. Some recommend that 1.3 volts is the safe upper limit. However, with c-states enabled and allowing voltage to decrease, a value between 1.32 and 1.33 seems acceptable unless you keep the system heavily loaded for extended periods. If you maintain a consistent load of around 1.3 or less, it should be fine. Prolonged use at or below 1.3, especially with gaming or occasional encoding, is likely safe. Too much voltage can harm the...
D
DrPingouin
11-20-2016, 11:41 AM #2

Initially ensure c-states are activated (auto isn't consistently enabled) and power is set to balanced. This prevents the chip from detecting excessive voltage when not under stress, thus extending its life. Is the 1.31 Vcore listed in the BIOS or shown in a program such as hwinfo64 while under load? You might actually be receiving more voltage than anticipated. Some recommend that 1.3 volts is the safe upper limit. However, with c-states enabled and allowing voltage to decrease, a value between 1.32 and 1.33 seems acceptable unless you keep the system heavily loaded for extended periods. If you maintain a consistent load of around 1.3 or less, it should be fine. Prolonged use at or below 1.3, especially with gaming or occasional encoding, is likely safe. Too much voltage can harm the...

A
AtousGamer
Junior Member
6
11-22-2016, 11:37 AM
#3
Initially, make sure c-states are enabled (auto isn't consistently activated) and set Windows power to balanced. This helps the chip avoid displaying maximum voltage when not under stress, which can extend its life.

Is the 1.31 Vcore listed in the BIOS or shown in a program such as hwinfo64 while under load? You might actually be seeing higher voltage than you realize.

Some recommend that 1.3 Vcore is the safe upper limit. However, with c-states active, allowing the voltage to drop slightly—around 1.32 to 1.33—is generally acceptable unless you run the system nonstop for extended periods. If you keep it at 1.3 or lower, and your usage involves gaming or occasional video encoding for a short time, I’m confident it’s safe.

Too much voltage can harm the chip through electromigration. This means that if the voltage exceeds what the path can handle, damage may occur. Imagine countless tiny paths feeding the chip; wear from high voltage or heavy use increases resistance, making it harder for the current to flow. Over time, this can lead to higher power requirements at a given speed or even a dead chip if damage accumulates.

LOL—so are you prepared to push that chip to its limits? Just kidding, it should handle the voltage and heat well enough for most of your needs.
A
AtousGamer
11-22-2016, 11:37 AM #3

Initially, make sure c-states are enabled (auto isn't consistently activated) and set Windows power to balanced. This helps the chip avoid displaying maximum voltage when not under stress, which can extend its life.

Is the 1.31 Vcore listed in the BIOS or shown in a program such as hwinfo64 while under load? You might actually be seeing higher voltage than you realize.

Some recommend that 1.3 Vcore is the safe upper limit. However, with c-states active, allowing the voltage to drop slightly—around 1.32 to 1.33—is generally acceptable unless you run the system nonstop for extended periods. If you keep it at 1.3 or lower, and your usage involves gaming or occasional video encoding for a short time, I’m confident it’s safe.

Too much voltage can harm the chip through electromigration. This means that if the voltage exceeds what the path can handle, damage may occur. Imagine countless tiny paths feeding the chip; wear from high voltage or heavy use increases resistance, making it harder for the current to flow. Over time, this can lead to higher power requirements at a given speed or even a dead chip if damage accumulates.

LOL—so are you prepared to push that chip to its limits? Just kidding, it should handle the voltage and heat well enough for most of your needs.