I have a GIGABYTE Z390 AORUS MASTER motherboard and an i9 9900K.
I have a 360mm Arctic Liquid Freezer II AIO cooler. I’m **not** looking to achieve the highest overclock possible, but will be happy with 5GHz all core, but I would like to have it at the lowest voltage and temps possible.
I using the OC guide from the link below as starters and had good results initially, but when running Cinebench R23 (multicore test) I noticed my CPU temps go to 100C immediately and don’t come down until the test is over. I noticed the CPU reaching those temps as well when running a full virus scan on my PC. There is definitely something wrong and **am in need of an experts help**. I’ve laid out my spec below and the changes I made in the bios.
**(Please ignore the image in the reddit post)**
[https://www.overclock.net/threads/9900k-5ghz-dvid-overclock-on-gigabyte-z390-aorus-master-finally-worked-for-me-but-would-like-a-second-pair-of-eyes-for-sanity-check.1775610/](https://www.overclock.net/threads/9900k-5ghz-dvid-overclock-on-gigabyte-z390-aorus-master-finally-worked-for-me-but-would-like-a-second-pair-of-eyes-for-sanity-check.1775610/)
Full system specs:
* Motherboard: GIGABYTE Z390 AORUS MASTER
* CPU: Intel i9-9900K
* CPU cooler: 360mm Arctic Liquid Freezer II AIO cooler
* Memory: GSKILL 4x16GB
* Video card: ASUS ROG STRIX 3090 OC 24G
* SSD: Samsung 970 PRO NVMe M.2 SSD 1TB
* PSU: Corsair HX850
* Chassis: Lian Li PC-O11 Dynamic
* Fan and radiator setup: AIO on top, 3 fans bottom/top intake, 3 fans side exhaust
**BIOS Changes:**
Main Tweaker section
* **Enhanced Multi-Core Performance**: Disabled
* **X.M.P. profile**: set to Profile 1
* **CPU Vcore**: Normal
* **Dynamic Vcore (DVID)**: Normal
* Advanced CPU Settings
* **Hyper-Threading Technology**: Enabled
* **Intel Speed Shift Technology**: Disabled
* **Ring to Core offset (Down Bin)**: Disabled
* **CPU EIST Function**: Enabled
* **Race To Halt**: Disabled
* **Voltage Optimization**: Disabled
* **Active Turbo Ratios**: Enabled and set all cores to 50
* **C-States Control**: Enabled
* **CPU Enhanced Halt (C1E)**: Disabled
* **C3 State Support**: Auto
* **C6/C7 State Support**: Disabled
* **C8 State Support**: Disabled
* **C10 State Support**: Disabled
* **Package C State limit**: Auto
* **Turbo Power Limits**: Enabled
* **Package Power Limit1 – TDP (Watts)**: 4090
* **Package Power Limit2 (Watts)**: 4090
* **Platform Power Limit1 (Watts)**: 4090
* **Platform Power Limit2 (Watts)**: 4090
* **DRAM Power Limit1 (Watts)**: 4090
* **DRAM Power Limit2 (Watts)**: 4090
* CPU/VRM Settings
* **CPU Internal AC/DC Load line**: Power Saving
* **CPU Vcore Loadline Calibration**: Medium
* **CPU Vcore PWM Switch Rate**: 300.0KHz
* **PWM Phase Control**: eXm Perf