OC FX 8350- NorthBridge
OC FX 8350- NorthBridge
Hey, I just updated my FX 8350 to 4.4GHZ but didn’t notice any improvement in the NB or HT. I’m aiming for better single-core performance and wondering if I should also overclock the NB. I want to do it without increasing the temperature, especially since I’m running at max load in the stress test (62°C). My motherboard is a Gigabyte 990xa-ud3. Thanks!
Hello friend.
Overclocking the HT frequency hasn't significantly boosted performance in the FX series, but CPU Northbridge does improve L2 cache speed.
Combine bus speed with multiplier settings. For a 4.4 GHz single core, use 220x20 which equals 4400, then adjust Northbridge to 2400. Set HT to 2400 and lock memory at the RAM manufacturer's speed. If RAM doesn't pass tests, reduce RAM when adjusting the multiplier or increase timings to -11 11 11 30.
Since you've boosted the Northbridge CPU speed, L2 cache speed also improves, enhancing single performance. Now ensure stable operation by providing the correct voltage—look for "CPU NB core voltage" and aim for around 1.25 for 8350, adjusting between 1.28 to 1.3. If tests...
The information provided might be outdated, but on an AMD phenom II system, the HT link doesn't affect performance significantly above 2000Mhz. The northbridge should be configured at 1.5 times the memory frequency. I have memory set to x8 (1600Mhz) and the northbridge at x12. Additionally, the bus speed was raised from 200 to 222, which increased the memory to 1776Mhz and the nb to 2666.
Hello friend.
Overclocking the HT frequency hasn't significantly boosted performance in the FX series, but the CPU Northbridge does improve L2 cache speed.
Combine bus speed with multiplier settings. For a 4.4 GHz single core, use 220x20 which equals 4400, then adjust the Northbridge to 2400. Set HT to 2400, and lock memory at the RAM manufacturer's speed. If RAM doesn't pass tests, reduce the multiplier or adjust timings to -11 11 11 30.
Since you've boosted the Northbridge CPU speed, L2 cache speed also improves, enhancing single-core performance. You'll need to provide stable voltage—look for "CPU NB core voltage" around 1.25 for the 8350, and adjust it to 1.28-1.3. If stability is achieved, consider raising Northbridge frequency to 2600.
I've observed from overclocking five different FX CPUs that increasing bus speed and Northbridge frequency are key for single-core gains. Once you surpass 4.5Ghz, these processors perform exceptionally well—similar results appear with many other chips too.
My 8320 is now stable at 5Ghz, matching the performance of very costly Intel models. Good luck!