Hi. I have a question that has been on my mind for quite some time now and I could not find a satisfying answer. I own a FX 8350 and after searching the internet for overclocking results I found that some people can reach a stable frequency anywhere between 4.6-4.8 Ghz and refer to 4.8 as "the wall" and others can get over this wall with similar configurations. Those people are viewed as "winners" in the CPU lottery because they bought a proccesor that can be pushed a little further. I saw this happening to Haswell CPU's also. What is the reason behind this ? Are certain CPU's made to be 'perfect' overclockers the way some people are born to be stars and if so how is this possible, I thought the making of CPU's is an automated process that makes identical parts.
CPUs are made from Silicon cylinders, ones cut from the center are better quality, ones on the outside are not so much, closer to the center the higher clocked, cores, and lower voltages
Each chip is unique. In fact, all FX-*3*0 and also FX-9370/9590 are the same chip, 8320 just has lower frequency, 4*** and 6*** have modules locked. They are binned based on what voltage they need to achieve a certain frequency. Those "winners" now are rare because better chips now are sold as 9370 and 9590.
The whole overclocking thing began because as manufacturers perfected the process of manufacturing a certain chip, way more "good" chips come out than they need so they took chips from the "good" bin, set them to lower frequency and sold them as cheaper models.
I myself found a Little trick with over clocking an older amd fx. I will keep an eye on this thread. If you wanna know how I did it let me know.........
I got 5.0 stable on mine with 4 cores. I would love to hear your trick
That's probably what it is, lol. That's not a true overclock though. If you wanted to do that for bragging rights you could get an Athlon II x4 760K on an ASRock FM2A85X Extreme6 and most of them will hit 4.9-5.0GHz with an H80i for a lot cheaper than a FX-8350.
Well making CPUs is an automated process, it does not mean all chips are the same even the smallest flaw in the silicon wafer the chip is made on will affect it.
I have a UEFI BIOS. You will want to install AMD Overdrive, and Ausus AI Suite 2. With Ausus 2 Suite on windows 7 I had to track down the patch so the software would install.
Ok In the tweaker settings In your BIOs Change
AI Overclock tuner - Manual
Ratio - Leave on Auto!!
AMD Turbo Core - Disabled (it will mess with your OC and will make it unstable)
PCIE - Freq - 100 (freq at which the PCIe slot operates, don't want this higher then 100 so lock in at 100 )
Spread Spectrum(s) - Disabled (increases stability on FX cpu's )
CPU/NB Frequency - AUTO
HT Link - AUTO
Goto the Advanced CPU config tab and DISABLE all the power savings etc, Disable the whole list.
Now Open AI Suite 2 You want to find DIGI PLUS VRM Tool.
Set CPU Load Line Calibration to Extreem, Full Blast.
Set CPU Current Capability to Full Blast 140 Percent.
Set the CPU Power Phase Control to Optimized.
Set the CPU/NB Current Capability to 120 Percent.
CPU/NB Load Line Calibration was left alone.
I confirmed these settings by once overclocked to 4.5 I set them all back to default and My CPU Failed.
In amd Overdrive, Start with 18 multiplier, 1.30 Volts, That gets you to 4.1.
Run your stress tests.
Then I Finally Hit 4.5 Ghz. I used a 19.5 Multiplier and Voltage at 1.325.
Hope that helps someone reach 4.5. Stable.
That was with my old fx 6100
IMHO the DIGI PLUS VRM Tool.is the trick part of it. I found a video of a guy using to help overclock his fx, and it helped me reach 4.5. While I have NOT used this on my 8350 it is just a option to try to help overclock a bit better.
If anyone tries this trick, let me know how it worked for you........as always write down your orginal settings incase things turn out bad. imho, I used nothing but occt......think that was the name of it....someone correct me if I am wrong
Mine counts, and is valid for bragging rights.
When the 8150s came out, the highest overclock was 8.1, with one core active, and it went in the record book as a valid OC.
If the world record holder only had one active core, then I'm allowed to have 4. :P