Cool N Quiet - Overclocking Bug?

Jonathan Yang

Honorable
Apr 29, 2013
32
0
10,540
So I finally decided to overclock my computer. My CPU is an AMD FX-8350. And I have overclocked it to 4.5GHz. However, after turning off C1E and Cool N Quiet and C6 State, when I go to Computer>System Properties> It reads 4.5GHz.
Turning on C1E and C6 State still shows 4.5GHz.

However, when I enable Cool N Quiet, it only shows 4.0GHz (stock clock) in system properties, and in AMD Catalyst, in CPU Overdrive it shows only 0-4000MHz.

BUT.. BUT.. Here's the confusing part, CPU-Z shows that my core speed can actually achieve 4499.99 MHz, and sometimes 4500 MHz.

I have no problem running Prime95 with the C-options on or off.

Is this just something to do with the OS and the C-States in BIOS and it's not realizing that my CPU is overclocked? Because I don't care what my system properties says, as long as I'm still able to achieve 4.5GHz then my overclock would be successful.

Also I kinda want to save power because I'm not gaming 24/7. A lot of times I actually just Youtube and do some casual gaming but I would like to have that 4.5GHz, kick in when I need it. (However when running Prime95 it kinda fluctuates between 3.3Ghz and 4.5Ghz, this scares me because it might do this in games also).

Also I overclocked via FSB BUS, so my HT Link and everything else is showing more MHz than the stock bus speeds on CPU-Z so I'm assuming I'm running overclocked?

Any insight would be greatly appreciated as I am still a noob at this. :) Thanks!
 

mr1hm

Distinguished
the speed fluctuations in P95 are definitely odd, it shouldn't happen. have you checked your core temperatures? what do they look like? i think 60C-62C is the safe limit.

you should overclock using the CPU's clock multiplier, when you use FSB to overclock, you are overclocking other important components of your motherboard such as PCI-E lanes and your RAM. if you absolutely want to use FSB to overclock, then you need to set a manual DRAM multiplier that's lower than its default value in order to achieve the speed that the RAM was rated for.

i'd recommend using the CPU multiplier as that's why it's there; if you overclock through the FSB, it's just more problems waiting to happen as there are several different components being overclocked @ the same time. so, when a problem does arise, it'll be difficult to pin-point the problem. the multiplier would overclock ONLY the CPU's speed.