FX 8350 overclcok - help?
FX 8350 overclcok - help?
Hi guys,
I configured my CPU at 4.7 GHz (in BIOS) with auto voltage to check power consumption. I tested it using prime 95 for about 1.5 hours; the maximum temperature reached was 49.8°C and the peak core voltage was 1,408 V. Could someone confirm if that’s acceptable? Should I adjust the voltage manually? Are there any other factors I should consider?
My specs are:
-MB: gigabyte GA-990xa-UD3
-CPU: AMD FX 8350 with Noctua NH-D14 cooler
-RAM: g.skill Sniper 2*8 GB at 1866 MHz
-PSU: Corsair CS 850 W
-GPU: MSI R9 390X Gaming 8GB
For reference, here’s the image link: http://tinypic.com/r/wl279w/9
To successfully overclock the AMD FX 8350, you must use an excellent liquid cooler since it heats up rapidly. It's likely you don't have a sufficient CPU cooler, and your motherboard may not be reliable.
To successfully overclock the AMD FX 8350, you must use an excellent liquid cooler since it heats up rapidly. It's likely you don't have a sufficient CPU cooler, and your motherboard may not be reliable.
It's secure and excellent. I managed only 4.3 with the H110 (8320, though).
No requirement for a liquid cooler—just staying cool is enough.
That's your CPU temperature, what about your socket temperature? You should keep an eye on that. When I tested at 1.5 volts, my CPU was only around 50°C, but it gradually rose to 70°C, which is near the socket limit. I have the same CPU and cooler as you, but a less good motherboard, so I ended up reaching only 4.5 GHz. Many people focus only on CPU temps, but they should also monitor the socket temperatures.
that's the cpu temperature, but what about your socket temperature? You should keep an eye on that. When I used 1.5 volts, my CPU was only at 50°C, but it gradually rose to 70°C which reached the socket limit. I have the same CPU and cooler you mentioned, but a less good motherboard, so I could only reach 4.5 GHz. Many people focus only on CPU temps, but they should also monitor the socket temps. My socket temperature is at its maximum at 61°C. I ran Prime95 again, this time blending test, and after 2.5 hours one worker stopped. So I reduced the CPU to 4.5 GHz, ran it for another 3 hours (blend and small FFTs), and there were no errors. Also, gaming didn't have any issues. I just wanted to share my experiences with overclocking, because it seemed too good to achieve these temps at 4.7 GHz with air cooling. Thanks to everyone.
others manage to hit that overclock with standard voltage, which means staying on auto doesn’t come as a surprise—it uses very few volts. You could manually adjust the voltage (starting around 1.373 or 1.4), increase the LLC voltage to higher levels, and likely reach your 4.7ghz or above, just need to keep temperatures in check.
You’re doing much better than me; I’m only getting stable at 4.4ghz, my voltage goes up to 1.46 volts, and I nearly max out my temps with the Prime 95 chipset. This is mainly because of my poor motherboard and the ASUS M5A97...970 chipsets that don’t like overclocking eight cores.
If you want it cooler, reach out to Noctua and request the "NH-D14 3rd fan kit" if you have the receipt—they’ll send it free. Having three fans on a big cooler would help, though it might get noisier but cool better.
I didn’t have my receipt, so they asked me to send a photo of the cooler; I’m not sure if they’ll do that for everyone. My fan kit is still on its way to me.
Hello, this is my very first message on toms.
I assume you already have some background or have looked at a few "Fx OC guides" that are available. So here I go straight to the point.
The auto-voltage is significantly higher than required when the system starts up. The motherboard usually fluctuates between high voltage to ensure stable performance regardless of silicon quality, and it reduces the voltage during idle to save heat and power. A standard "auto" setting would drop from 1.2 or lower to around 1.45... which is acceptable for regular speeds. However, for heavy overclocking like what you're doing, you should begin at 4.0GHz with a 1.3V setting and increase the multiplier by 0.5 (which means a 100MHz jump every half step). At 1.3GHz you might encounter stability problems ranging from 4.3 to 4.5... Then you should aim for a stable setting between 4.4 and possibly 4.6, with the voltage reaching up to 1.38 during stress tests.
I currently have a setup that works well: 4.4GHz stable at 1.32V. I’m comfortable with this overclock since my Hyper 212 Evo keeps core temperatures below 62°C on Prime95, though my system is new and I’m still adjusting settings to get the optimal configuration for my CPU.
By the way, here’s what I have:
CPU: Fx8350 @4.4GHz v1.32
CPU Cooler: CM Hyper 212 Evo
Motherboard: Asus 990FX Sabertooth R2.0
RAM: Kingston Fury HyperX 16GB 1866MHz (2x8)
GPU: Sapphire R7 370 4GB
SSD: Kingston 120GB
HDD: Toshiba 1TB 7200rpm
PSU: Sentey XPP 625W
Case: Sentey GS-6000 with three 120mm fans