F5F Stay Refreshed Power Users Overclocking Can I easily achieve an 8700k at 5ghz?

Can I easily achieve an 8700k at 5ghz?

Can I easily achieve an 8700k at 5ghz?

M
MCCrafter100
Member
159
04-08-2017, 10:54 PM
#1
can you check if an 8700k and mobo asus z370prime p II with a 240mm cooler works, and should the vcore be about 1.33v for 5ghz? i'm not sure if the mobo can handle it
M
MCCrafter100
04-08-2017, 10:54 PM #1

can you check if an 8700k and mobo asus z370prime p II with a 240mm cooler works, and should the vcore be about 1.33v for 5ghz? i'm not sure if the mobo can handle it

B
bigcow666
Member
73
04-29-2017, 05:31 PM
#2
It might happen, but success really depends on chance.
B
bigcow666
04-29-2017, 05:31 PM #2

It might happen, but success really depends on chance.

B
Briarswag
Junior Member
8
04-29-2017, 10:28 PM
#3
Check if the motherboard can maintain a 5ghz frequency while handling 1.33max under 80 degrees.
B
Briarswag
04-29-2017, 10:28 PM #3

Check if the motherboard can maintain a 5ghz frequency while handling 1.33max under 80 degrees.

W
Waffleman214
Member
52
04-30-2017, 12:20 AM
#4
The best approach is to test it yourself, as motherboards include safety mechanisms that will power down the system if the VRM becomes too hot. I only encountered this problem with an old FX 6300 using a low-cost 970 series chipset board that had plastic push pins securing the VRM heatsink. Although Corsair H100i cooled the CPU adequately, the board struggled under the high heat from the heatsink. We were pushing maximum performance—5.0Ghz on 1.55V, which is higher than the FX 9590’s 1.5V—and it was a $120 Canadian board, essentially an $80 motherboard. I believe you can achieve 5Ghz again now, and your motherboard should be capable of handling it.
W
Waffleman214
04-30-2017, 12:20 AM #4

The best approach is to test it yourself, as motherboards include safety mechanisms that will power down the system if the VRM becomes too hot. I only encountered this problem with an old FX 6300 using a low-cost 970 series chipset board that had plastic push pins securing the VRM heatsink. Although Corsair H100i cooled the CPU adequately, the board struggled under the high heat from the heatsink. We were pushing maximum performance—5.0Ghz on 1.55V, which is higher than the FX 9590’s 1.5V—and it was a $120 Canadian board, essentially an $80 motherboard. I believe you can achieve 5Ghz again now, and your motherboard should be capable of handling it.

S
SergioPW
Member
206
05-01-2017, 12:29 PM
#5
Not every motherboard comes with the fail safes you mention... in reality, most of them lack them. Many will comfortably handle VRAM temperatures above 105/125°C. These ratings are usually given at 105/125 hours, not necessarily their true maximum. The concern lies with components near the VRM, such as capacitors, which aren’t designed to withstand extremely high heat close by. That’s what concerns me most. What bothers me is your LLC setting for stable 5GHz operation. You could be experiencing significant voltage spikes. My motherboard has a faulty heatsink on the VRM, is running a light overclock (3.8GHz on a Ryzen 1700), and the capacitors reach 89°C without any airflow during an Intel burn test. I believe this indicates the VRM is running about 20°C hotter than the capacitors. With moderate airflow, they drop to around 75°C, and in normal use they rarely exceed 70°C—especially for gaming or streaming. Your motherboard appears to have a very weak VRM setup for that workload.
S
SergioPW
05-01-2017, 12:29 PM #5

Not every motherboard comes with the fail safes you mention... in reality, most of them lack them. Many will comfortably handle VRAM temperatures above 105/125°C. These ratings are usually given at 105/125 hours, not necessarily their true maximum. The concern lies with components near the VRM, such as capacitors, which aren’t designed to withstand extremely high heat close by. That’s what concerns me most. What bothers me is your LLC setting for stable 5GHz operation. You could be experiencing significant voltage spikes. My motherboard has a faulty heatsink on the VRM, is running a light overclock (3.8GHz on a Ryzen 1700), and the capacitors reach 89°C without any airflow during an Intel burn test. I believe this indicates the VRM is running about 20°C hotter than the capacitors. With moderate airflow, they drop to around 75°C, and in normal use they rarely exceed 70°C—especially for gaming or streaming. Your motherboard appears to have a very weak VRM setup for that workload.

W
WinterPR
Member
129
05-01-2017, 06:49 PM
#6
Thank you for checking, I wasn't aware it was such an inexpensive Z370 board.
W
WinterPR
05-01-2017, 06:49 PM #6

Thank you for checking, I wasn't aware it was such an inexpensive Z370 board.

W
WallDerFiree
Junior Member
6
05-02-2017, 02:42 AM
#7
Cpu ocing is all about luck. I've heard people claiming they can't reach a steady 4.1ghz, while others manage 4.2ghz. I'm lucky because mine works. It's just a matter of silicon luck. Not every 8700k will run smoothly at 5ghz.
W
WallDerFiree
05-02-2017, 02:42 AM #7

Cpu ocing is all about luck. I've heard people claiming they can't reach a steady 4.1ghz, while others manage 4.2ghz. I'm lucky because mine works. It's just a matter of silicon luck. Not every 8700k will run smoothly at 5ghz.

K
KnightCore638
Member
50
05-14-2017, 12:54 AM
#8
CPU silicon lottery is one matter, but a time bomb in your computer is another.
K
KnightCore638
05-14-2017, 12:54 AM #8

CPU silicon lottery is one matter, but a time bomb in your computer is another.