Sign in with
Sign up | Sign in
Your question
Solved

G.Skill F3 1866C9D + ASUS M5A97 R2.0 + AMD FX8350 - Getting low performance - Why?

Last response: in Memory
Share
December 7, 2013 8:08:21 AM

Hello everybody, I hope you could give me some solution to this problem. This is really driving me crazy, I've read a lot of threads but things are still the same.
Two day ago I made a big upgrade in my desktop, changing mobo, processor and memory as you can see in the thread's title; I've set up BIOS following G.Skill tips: mem.freq. DDR3-1866MHz, CPU/NB voltage 1350V, DRAM Timings 9-10-9-28, Command rate 2T; I ran Memtest for 14 hours, 0 errors; made a clean reinstall of Windows 8.1 pro 64 bit (on samsung 840 SSD). Result: the system is stable but performance is not what I expected; I ran a few programs to benchmark my system and while the results for cpu are fine the ones for memory are disappointing (see screenshots below). Anyhow I get more or less the same results lowering mem freq to 1600 or 1333

Has anybody any idea of what's wrong here? Did I mess up with the BIOS or it's a memory problem? Any help is welcome!




a b Ĉ ASUS
a c 171 À AMD
December 7, 2013 8:21:19 AM

Command rate should be 1T..

Change setting to 1T and do the benchmark once more again..
m
0
l
December 7, 2013 8:24:46 AM

I tried also with command rate 1T, but this doesn't change much..
Anyhow 2T is what they suggest in g.skill forum for DDR3 1866.
What else could give me such bad results?
m
0
l
Related resources

Best solution

a b Ĉ ASUS
a c 171 À AMD
December 7, 2013 8:27:10 AM

peppecannone said:
I tried also with command rate 1T, but this doesn't change much..
Anyhow 2T is what they suggest in g.skill forum for DDR3 1866.
What else could give me such bad results?


how about you memory voltage..?
1.65v..?

and set your nb clock to 2600Mhz

Share
December 7, 2013 8:28:26 AM

Memory voltage is 1.5v right now. Should I raise it?
m
0
l
a b Ĉ ASUS
a c 171 À AMD
December 7, 2013 8:29:43 AM

peppecannone said:
Memory voltage is 1.5v right now. Should I raise it?


yes, set it to 1.65v and raise your nb clock to at least 2600Mhz..

m
0
l
December 7, 2013 8:31:09 AM

I'll try and tell you what happens
m
0
l
a c 150 Ĉ ASUS
a b À AMD
December 7, 2013 8:45:00 AM

Hi,
Try setting in BIOS the Ai Overclock Tuner to DOCP, leave only 2 RAM modules installed and test again.
m
0
l
December 7, 2013 9:01:45 AM

I tried with Quaddro's tip but the benchmark is quite the same now..
Here you have a few screenshots of my bios, see if you find anything wrong.

As for what suggested alexoiu, I've already tried setting DOCP with more or less the same results.. the RAM modules are just 2 x 8Gb. Do you think I should have picked 4 x 4 Gb modules? Could this really change something?





m
0
l
a c 150 Ĉ ASUS
a b À AMD
December 7, 2013 9:15:54 AM

Hard to say. What are the results with single RAM stick installed? Is there a newer BIOS version available?
m
0
l
December 7, 2013 9:23:28 AM

I've not tried yet with a single stick, but that's the first thing I'm going to do tomorrow (this will take me some time since I'll need first to remove the noctua NH-D14 cooler)..
By the way I did again the benchmark and it shows a little improvement (still far from the expected)

Just another - maybe important thing: could the problem be related to memory slot? Actually I'm using the two blu slots (slot 2 and 4)




m
0
l
a c 150 Ĉ ASUS
a b À AMD
December 7, 2013 9:29:10 AM

No, using the blue slots should not affect the performance.
There is an improvement. What changes have you made?
m
0
l
a b Ĉ ASUS
a c 171 À AMD
December 7, 2013 9:29:33 AM

first slot just affect overclocking stability..

okay, try to use different benchmark..performance test is not reliable enough..

you can try aida lavalyst, and compare yours with other system..this one is being standard for memory benchmark..
http://www.lavalys.com/support/downloads/
m
0
l
December 7, 2013 10:09:57 AM

I've just tried with AIDA: the results are now in line with tested benchmark! In the end it was enough to raise RAM voltage to 1,65 and nb clock to 2600 MHz! See for yourself:



Thanx a lot to Quaddro and alexoiu for their support!

m
0
l
!