How to increase CPU speed and memory performance.
How to increase CPU speed and memory performance.
So you're just starting out in the PC enthusiast scene. Let me break it down in simple terms. When you adjust your BIOS settings to boost your CPU and memory speeds, you’re trying to push them beyond their normal limits. For your CPU, you can set the core ratio to something like 4GHz or higher. Your current CPU runs at 3.6GHz, so increasing it to 4GHz is a big step. With the memory, you're starting with 16GB of 3000MHz RAM on your Asus board. To make it run faster, you’ll need to raise the voltage a bit at a time, watching closely until it stays steady. There’s a trick using the + or - keys on your keyboard to adjust the voltage quickly. But here’s the big question: what does “stable” really mean? You want your system to run smoothly—no crashes, no lag, and everything working without hiccups. You’re aiming for a balance where performance is up but still reliable. For memory overclocking, you follow the same idea: push it higher, but only when it holds steady. So, in short: keep testing small changes, watch for stability, and don’t rush. That’s the key.
I tried to improve the positive airflow by using a velcro strap or zip tie to prevent the PCIe and 24pin cable from blocking the intake fan. Added a top exhaust fan and another front intake. Also considered moving the front intake to become the top exhaust and using two 140mm case fans for intake. The issue seems to be underestimating the airflow, possibly due to insufficient VRM heatsink at high load. Did you adjust the load line calibration?
Stability is usually checked using stress testing tools like Prime95 or AIDA64.
If the test causes your computer to crash or freeze, it indicates instability. The recommended duration for the test depends on personal preference, but most people aim for about 20 to 30 minutes. Some may suggest longer periods, such as 24 hours, but I believe that adds unnecessary strain on the system. If stability is crucial, overclocking might not be advisable.
Increasing voltage can help a stable speed if the system previously failed, though it also generates more heat and can damage components. DDR4 RAM typically supports up to 1.4V, while your CPU usually operates around 1.45V (verify this).
Use gradual changes
1.) Boost speed
2.) Perform stress test
a) If successful, try increasing speed again
b) If it fails, raise voltage
With RAM, there are other factors besides speed and voltage to adjust, such as timings. You can enhance timings together with voltage for a faster performance.
Common DDR4 RAM specifications include 2400 MHz at 1.2V C16 – try raising the voltage to 1.35V and see if you achieve speeds like 2666, 2800, or 3000.
Alternatively, if you have 2400 MHz at 1.2V C14, you might reach 3200 MHz at 1.35V C16.
Preparation notes
■ For PSUs linked to your UPS, using 80+ gold 600 W (about 82 to 85% efficiency), ensure a minimum 800 W UPS is in place; this will consume roughly 700 watts from the wall socket.
■ Maintain room temperature between 20 to 25°C for better IC longevity; ensure adequate airflow throughout your case.
■ Always apply the latest BIOS updates, focusing especially on RAM OC settings.
Understanding the limits
Choose the maximum voltage option available. Avoid gradual increases—opt for 100% LLC or top-tier settings unless you intend continuous overclocking; starting at 25% is advisable if you plan heavy OC.
My aggressive stable voltage threadripper 2950x with POB enabled
Vcore 1.45
SOC 1.3
vdimm 1.35 to 1.45
PLL 2.0
SB 1.4
standby 2
SB 2.5
On BIOS, when selecting OC, you’ll find a child menu.
CPU Load Line Calibration Control [Auto] – by default all voltage-related parameters are auto-set; higher voltage improves stability under system stress.
Save and exit BIOS after logging in with Windows, then verify using CPUZ and proceed to benchmarking.
If you encounter freezing or BSOD errors, repeat the process and adjust each step accordingly.
Preparation notes
■ For PSUs linked to your UPS, if you're using 80+ Gold 600 W (around 82 to 85% efficiency), ensure a minimum of 800 W UPS is installed; this will consume roughly 700 watts from the wall socket.
■ Maintain room temperature between 20 to 25°C for better IC longevity; ensure adequate airflow throughout your case.
■ Always apply the latest BIOS updates, especially focusing on RAM OC settings.
Understanding the limits
- Choose the maximum voltage option available. Avoid gradual increases—opt for 100% LLC or top-tier settings unless you intend continuous overclocking; a 25% increase should suffice for 24/7 operation.
- For my aggressive stable voltage Threadripper 2950x with POB enabled:
- Vcore: 1.45
- SOC: 1.3
- vdimm: 1.35 to 1.45
- PLL: 2.0
- SB: 1.4
- Standby: 2
- SB: 2.5
On BIOS, when selecting OC, the child menu will appear.
CPU Load Line Calibration Control [Auto] should be enabled by default; higher voltage settings help maintain stable clock speeds under system stress.
Save and exit BIOS after logging in with Windows. Verify via CPUZ and proceed to run a benchmark test.
If you encountered freezing or BSOD errors, repeat the process and adjust each step accordingly.
For reference:
My PSU model is an EVGA SuperNOVA G3
650W
80+ Gold Certified Fully-Modular
I tried to improve the positive airflow by using a velcro strap or zip tie to prevent the PCIe and 24pin cable from blocking the intake fan. Added a top exhaust fan and another front intake. Also considered moving the front intake to become the top exhaust and using two 140mm case fans for intake. The issue seems to be underestimating the airflow, possibly due to insufficient VRM heatsink at full load. Did you adjust the load line calibration?