01/01/2014
Today in Tech Support Land.....
(Alleviating a CPU bottleneck / Overclocking an AMD FX CPU)
Darzo:
I've upgraded from A GTX 560 2GB to a GTX 770 2GB and have gotten either the same FPS or worse in some scenarios... It really sickens me I've spent Nearly £300 on a Card to not see any improvement and at some points worse... I've tried the earlier drivers and the latest beta drivers and nothing has changed performance wise...
I'm honestly considering putting my old GTX 560 back in because it can sometimes get better FPS... ?!
I feel ripped off, is there a fix for this or do I have to send it back. I've seen others having problems and it makes me wonder why Nvidia has not done anything about it.
As the buyer we're spending hundreds of pounds on these products and I'm not satisfied with the performance. Sorry for sounding angry in this post I needed to vent somewhere and here was the perfect place so hopefully the message gets to Nvidia.
I've reinstalled my OS and done driver sweeps and still no improvements...
Please fix these problems it's horrible that I can't play some games in beautiful high graphics.
Thanks,
Darazo
ME:
What games?
Sure hope that 6100 is OC'd as it will kill performance in some titles @ OE clock speeds with APM/C&Q/and turbo enabled. (Under turbo boost your cpu is essentially a dual core) While runnig your "games" is the GPU running at 90-100% load? If not your CPU bottle necked. Have you changed you power management setting in the NVCP to "high performance" to prevent the GPU from down clocking?
Darzo-
The CPU isn't OC'd as I'm not to sure how to do it... Is it something I can do easily? If possible could you tell me what to use and how to do it or link me some sort of guide? Thanks a lot for your fast reply. Also I've been testing it on games like, Asassins creed:Black flag, Batman Arkham origins and League of Legends. It really suprises me because League of Legends isn't very graphically dependant so I was surprised to see around 60~100 fps during game. I used to get that on my old card... Was expecting atleast 200+ :s
DARZO-
Ok, I OC'd processor using AMD Overdrive , but it actually made it slower so had to put it back on default to make it smooth again.
When I increased the CPU Core speed it got slower so I added more voltage to it and still no improvement... Had to put it back to default
ME:(fine fine Ill go into detail'cause no one knows how to "google" these days)
You do NOT want to use AMD OD (or any software for that matter)for primary overclocking. AMDOD is supposed to be used for "fine tuning" post boot up or quick setting changes for certain benchmarks.
You want to ALWAYS OC within the bios.
Which motherboard do you have? Are you using an aftermarket cpu cooler, if so which one?
I see you have 12Gb of ram installed.... this means you are either running 3x sticks or are mixing ram modules.... this is NOT good. AMD uses dual channel ram, meaning the ram sticks must be installed in "pairs" in order to use the much faster dual channel mode. Running in single channel mode will cut your memory bandwidth in half.
As far as OC'ing that cpu goes... you want to shoot for approx. 4.4-4.7Ghz 24/7. This is very easily accomplished with that cpu. (The international avg. is 4.53Ghz with all 6 cores active).
However you must have a "good" cooler. The OEM cooler simply will not be able to handle the increased TDP from overclocking. If the cooling is not sufficient the CPU will throttle (slow) down. This normally occurs at a "core" temp. of approx. 58*C, which is why cooling is so important. If you disable CPU fan control within the Bios, the fans get the full +12V and 100% PWM signal. Then they'll run at their maximum speed but that also depends on their environment - they may run faster in free air. The full behavior of a fan is characterized by its fan curve which is in the data sheet.
If you can give me the make/model # of your motherboard I can help out with what settings (exactly) to adjust. Just remember to be sure that you have disabled the following prior to attempting ANY overclock:
-AMD Cool N' Quiet
-Turbo Boost
-APM
-HPC (High Performance Computing)
-C1E
After disabling those options, it's quite simple really.
For a 4ghz OC change the following:
CPU Ratio= 20x
CPU FSB= 200
Memory clk spd= 1600Mhz
Northbridge= 2400Mhz
Hypertransport= 2200Mhz (for stability)
Save your settings and reboot the system (F10)
How it works is CPU multiplier * FSB= CPU clock speed
So 20 * 200= 4000Mhz
Since your RAM is only 1600Mhz, there is no need to increase your Northbridge clocks.
for example:
Northbridge..... RAM Speed
2400Mhz ..... 1600Mhz
2600Mhz ..... 1866Mhz
2800Mhz ..... 2033Mhz
3000Mhz ..... 2400Mhz
Minor clock adjustments can be made by changing the FSB. A word of warning though... Your FSB clock speed effects the entire system...PCI-e, sata, memory, cpu clocks, NB clocks, HT clocks, ect....SO adjusting this may cause some instability with other hardware. There is plenty of room to play with though... changing the FSB from 200-210 is fine and perfectly safe. Most like to run it at 205Mhz to give the entire system a slight boost.
Now... with the settings I gave you, you "should" not have to adjust your CPU voltage. However; every chip is different. On "AIR" cooling you should be able to safely run up to 1.45V (1.6V on water). If the above settings do not appear to be stable.. than increase your cpu-v by "1" step (usually .02v steps depending on your board) and reboot. Keep doing this until stable, or either ...
A: You begin to overheat (in excess of 55*C core temp. @ load)
or
B: You hit your voltage threshold of 1.45v
Download and install (run as admin) wPrime , change the settings in wPrime to use "6" total cores (will default as 1 core) and run both the 32M and 1024M tests while watching your temperatures. If it passes the 1024M, run it a couple more times just to be sure your good.
