F5F Stay Refreshed Power Users Overclocking OC unstable on battlefield yet not affected by Prime95.

OC unstable on battlefield yet not affected by Prime95.

OC unstable on battlefield yet not affected by Prime95.

T
Tuetme
Senior Member
418
08-13-2025, 09:47 PM
#1
Hello everyone,
I'm seeking advice on what might be causing issues with my OC.
Right now I'm using a 5GHz OC at 1.335v on an i9 9900k. The LLC is set to auto, and the cache remains at 4.3GHz.
The only BIOS adjustment made was XMP. My RAM speed is currently 3466MHz.
I've completed a Prime95 test lasting three hours; the maximum temperature reached was 78°C, and everything functioned normally. I also ran XTU and Aida stress tests for an hour without any problems.
Additionally, I tested cinebench and Unigine Heaven in extreme settings for about 45 minutes while watching videos—no concerning temperatures or issues were observed.
I found these configurations work well overall, except for Battlefield 5, which causes crashes on my PC. I can play a few matches (2/3/4) before it crashes. It seems the issue isn't thermal, as the CPU stays around 65-75°C during games. You can also see in the photos that the temperatures at the time of the crash weren’t extreme.
Here are my specs:
- Intel Core i9 9900k @ 5GHz
- Corsair H150i Pro 320mm AIO Cooler
- Asus ROG Maximus Code XI board
- 4 x 8GB Corsair Vengeance RGB @ 3466MHz
- Asus ROG Strix 2080ti OC Edition
- Corsair RMX 850W PSU
- 1x Samsung EVO 500GB SSD
- 1x Intel M2.2TB SSD

I also control all case fans and the AIO via Corsair iCUE.
My GPU is running correctly out of the box, so I’m holding off on further OC until the CPU stabilizes.
Another odd observation: after my CPU overclock, GPU temperatures dropped during load, dropping to mid-50s to low-60s in games—down from a usual 65-70 average.
Fortunately, my second monitor freezes when the crash happens, so I managed to capture some photos with my phone showing AIDA64 at the time of the last crash.
Appreciate any suggestions!
T
Tuetme
08-13-2025, 09:47 PM #1

Hello everyone,
I'm seeking advice on what might be causing issues with my OC.
Right now I'm using a 5GHz OC at 1.335v on an i9 9900k. The LLC is set to auto, and the cache remains at 4.3GHz.
The only BIOS adjustment made was XMP. My RAM speed is currently 3466MHz.
I've completed a Prime95 test lasting three hours; the maximum temperature reached was 78°C, and everything functioned normally. I also ran XTU and Aida stress tests for an hour without any problems.
Additionally, I tested cinebench and Unigine Heaven in extreme settings for about 45 minutes while watching videos—no concerning temperatures or issues were observed.
I found these configurations work well overall, except for Battlefield 5, which causes crashes on my PC. I can play a few matches (2/3/4) before it crashes. It seems the issue isn't thermal, as the CPU stays around 65-75°C during games. You can also see in the photos that the temperatures at the time of the crash weren’t extreme.
Here are my specs:
- Intel Core i9 9900k @ 5GHz
- Corsair H150i Pro 320mm AIO Cooler
- Asus ROG Maximus Code XI board
- 4 x 8GB Corsair Vengeance RGB @ 3466MHz
- Asus ROG Strix 2080ti OC Edition
- Corsair RMX 850W PSU
- 1x Samsung EVO 500GB SSD
- 1x Intel M2.2TB SSD

I also control all case fans and the AIO via Corsair iCUE.
My GPU is running correctly out of the box, so I’m holding off on further OC until the CPU stabilizes.
Another odd observation: after my CPU overclock, GPU temperatures dropped during load, dropping to mid-50s to low-60s in games—down from a usual 65-70 average.
Fortunately, my second monitor freezes when the crash happens, so I managed to capture some photos with my phone showing AIDA64 at the time of the last crash.
Appreciate any suggestions!

M
MasterLight_
Junior Member
47
08-13-2025, 09:47 PM
#2
Conduct a memory stress test in AIDA 64. The small FFT test in prime 95 doesn't challenge memory as much as a game would.
M
MasterLight_
08-13-2025, 09:47 PM #2

Conduct a memory stress test in AIDA 64. The small FFT test in prime 95 doesn't challenge memory as much as a game would.

S
Shadowrunner12
Junior Member
3
08-13-2025, 09:47 PM
#3
Conduct a memory stress test in AIDA 64. The small FFT test in prime 95 doesn't challenge memory as much as a game would.
S
Shadowrunner12
08-13-2025, 09:47 PM #3

Conduct a memory stress test in AIDA 64. The small FFT test in prime 95 doesn't challenge memory as much as a game would.