F5F Stay Refreshed Power Users Overclocking i7 4790k voltage

i7 4790k voltage

i7 4790k voltage

M
mumustrak
Senior Member
729
10-28-2016, 02:43 PM
#1
Consider the voltage and heat factors.
The readings show spikes to 1.31v at 62°C, with a 26.6v peak during Prime95.
Is a 1.3v increase acceptable given these temperatures?
Using a Kraken X61 water cooler, a spike to 1.33v is needed for 4.8ghz performance at 69°C.
Low core temps are good, but the voltage changes matter.
M
mumustrak
10-28-2016, 02:43 PM #1

Consider the voltage and heat factors.
The readings show spikes to 1.31v at 62°C, with a 26.6v peak during Prime95.
Is a 1.3v increase acceptable given these temperatures?
Using a Kraken X61 water cooler, a spike to 1.33v is needed for 4.8ghz performance at 69°C.
Low core temps are good, but the voltage changes matter.

9
992x
Senior Member
506
10-28-2016, 04:33 PM
#2
1.35v works well. I noticed I could achieve 4.7ghz at 1.25 and 4.8ghz at 1.35. The higher voltage needed for 100mhz wasn't appealing, so I stuck with 4.7ghz.
Your temperatures are okay and the voltage is correct, but it's close to the highest range you'd feel comfortable in.
9
992x
10-28-2016, 04:33 PM #2

1.35v works well. I noticed I could achieve 4.7ghz at 1.25 and 4.8ghz at 1.35. The higher voltage needed for 100mhz wasn't appealing, so I stuck with 4.7ghz.
Your temperatures are okay and the voltage is correct, but it's close to the highest range you'd feel comfortable in.

F
Foxy270
Junior Member
16
10-29-2016, 07:53 AM
#3
1.35v works well. I noticed I could achieve 4.7ghz at 1.25 and 4.8ghz at 1.35. The higher voltage needed for 100mhz wasn't appealing, so I stuck with 4.7ghz.
Your temperatures are okay and the voltage is correct, but it's close to the highest range you'd feel comfortable in.
F
Foxy270
10-29-2016, 07:53 AM #3

1.35v works well. I noticed I could achieve 4.7ghz at 1.25 and 4.8ghz at 1.35. The higher voltage needed for 100mhz wasn't appealing, so I stuck with 4.7ghz.
Your temperatures are okay and the voltage is correct, but it's close to the highest range you'd feel comfortable in.

_
_KaikyRPG_
Member
129
10-30-2016, 06:33 AM
#4
what to consider about voltage and heat?
4.7ghz running at 1.28v atm spikes to 1.31v with the hottest core at 62C and lowest at 52C during prime95 26.6v. Is a 1.3v+ acceptable or should I worry? My temperatures are low.
using a kraken x61 water cooler, 1.33v spikes to 1.356v is needed for 4.8ghz = 69C hottest core and 61C lowest core. Either option works, so whatever feels better. I’d prefer 1.356 vcore @ 4.8G with a max of 69C, but the performance difference between 4.7 and 4.8Ghz is minimal.
_
_KaikyRPG_
10-30-2016, 06:33 AM #4

what to consider about voltage and heat?
4.7ghz running at 1.28v atm spikes to 1.31v with the hottest core at 62C and lowest at 52C during prime95 26.6v. Is a 1.3v+ acceptable or should I worry? My temperatures are low.
using a kraken x61 water cooler, 1.33v spikes to 1.356v is needed for 4.8ghz = 69C hottest core and 61C lowest core. Either option works, so whatever feels better. I’d prefer 1.356 vcore @ 4.8G with a max of 69C, but the performance difference between 4.7 and 4.8Ghz is minimal.