Can you lower the frequency on RAM?

[David_DDD]

My computer runs slow - lower FPS than it should be. and the fun part is when I decrease the quality from ultra to high or even to medium nothing really changes. I ran Afterburner and AIDA and it showed that only about 3 gb is in use while hardware mem is over the roof. around 9GB! I turned hardware memory off in Windows preferences and nothing changes. Then I read the manual and realized that my mobo does not support ddr 2133 only in OC mode. I assume that this is the problem.
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RAM G. Skill ddr3 2133 2x 4G
motherboard (MSI 970 gaming)
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I was wondering if I could just lower the Frequency down in BIOS or i have to get a new RAM?

 

[David_DDD]

Alright first reset the CMOS/BIOS Then download HWmonitor. On it look for the 12V rail should be towards the top and fire up a benchmark while watching it. It should stay right at 12V if it starts to go up or down depending on how much it'll be the PSU a multimeter would be more accurate if you can do that htough

I just turned on the game and it went up to 13.2V
https://www.dropbox.com/s/rumyw8d3e225y4a/%D0%A1%D0%BA%D1%80%D0%B8%D0%BD%D1%88%D0%BE%D1%82%202016-02-19%2019.48.55.png?dl=0
So PSU is the problem?

Even if your PSU isn't causing the slow down that is a bad PSU. The absolute MAX for ATX spec 12V is 12.6V. 13.2V is way way too high. You might can check with a multimeter just to verify but I would definitely start looking for a new PSU.

Hi again. so... I changed my PSU from 600w to 750w (Corsair CX750M) and the voltage is again above 13v! I don't think is's PSU problem

That is really weird. can you test that with a multi meter just to be safe?

I did. it hte store while returning it. under no load it was normal 12v. i believe it's softwear issue

 

[Spectre694]

Alright first reset the CMOS/BIOS Then download HWmonitor. On it look for the 12V rail should be towards the top and fire up a benchmark while watching it. It should stay right at 12V if it starts to go up or down depending on how much it'll be the PSU a multimeter would be more accurate if you can do that htough

I just turned on the game and it went up to 13.2V
https://www.dropbox.com/s/rumyw8d3e225y4a/%D0%A1%D0%BA%D1%80%D0%B8%D0%BD%D1%88%D0%BE%D1%82%202016-02-19%2019.48.55.png?dl=0
So PSU is the problem?

Even if your PSU isn't causing the slow down that is a bad PSU. The absolute MAX for ATX spec 12V is 12.6V. 13.2V is way way too high. You might can check with a multimeter just to verify but I would definitely start looking for a new PSU.

Hi again. so... I changed my PSU from 600w to 750w (Corsair CX750M) and the voltage is again above 13v! I don't think is's PSU problem

That is really weird. can you test that with a multi meter just to be safe?

I did. it hte store while returning it. under no load it was normal 12v. i believe it's softwear issue

Sure sounds like it. Well it really sounds like you might want to make a new thread now to try and figure out your actual problem. That'll get more people to look at it with more ideas.