Sign in with
Sign up | Sign in
Your question
Solved

RAM changing timings

Last response: in Memory
Share
February 5, 2014 5:49:36 AM

Earlier today I moved the RAM chip from channel B to channel A. I had put it in the wrong slot when I built the rig, and figured that it makes more sense to have it in the A-1 slot(as I have a single 8GB chip). I booted up and somehow expected an increase in performance, but alas, the timings had changed from 4-5-4-(something) to 11-11-11-30. Does anyone have an idea why this happens? And will I be better off continuing to have the RAM in channel B?

RAM: Kingston DDR3-1600/PC3-12800 8GB
Mobo: Gigabyte 970A-UD3P

More about : ram changing timings

February 5, 2014 9:37:34 AM

The reason I am asking is that I am failing Prime95 blend, and I am sure it's not my CPU. I have read that loosening the timings on the RAM might solve the problem, but I don't know what the next "step" is after 11-11-11-30. Does anyone know about some "good" timings I can use?(Hopefully with minimal performance loss)
m
0
l
a c 1957 } Memory
February 5, 2014 6:07:46 PM

What's the actual model # of the DRAM (can find it in CPU-Z under the SPD tab as Part Number)
m
0
l
Related resources
February 6, 2014 2:22:40 AM

The part number is: 99U5403-159.A01LF
m
0
l

Best solution

a c 1957 } Memory
February 6, 2014 7:03:05 AM

Might try raising the DRAM voltage + 0.05 and CPU/NB up to 1.2
Share
February 6, 2014 7:22:08 AM

Tradesman1 said:
Might try raising the DRAM voltage + 0.05 and CPU/NB up to 1.2


Ok, I'll try adding some voltage to the DRAM if you think that'll help stability, even though I haven't OC'd the RAM itself (only OC'd CPU and NB)

In the gigabyte BIOS there isn't anything called CPU/NB, but I am assuming "NB core" is the equivalent? I that case, it is 1.2V stock. Should I try bumping it to 1.25-1.3?
m
0
l
a c 1957 } Memory
February 6, 2014 7:30:29 AM

1.25
m
0
l
February 6, 2014 8:45:54 AM

Tradesman1 said:
1.25


Bumped NB/CPU to 1.25 and DRAM to 1.55, still error in P95. I am going to try setting NB/CPU to 1.3, and post the results
m
0
l
February 6, 2014 9:00:26 AM

Still error with dram 1.55 and cpu/nb 1.3, even upped the voltage on cpu a bit just to be sure. Is there anything else that affects RAM stability with OC'd CPU?
m
0
l
a c 1957 } Memory
February 6, 2014 5:02:05 PM

Could try running Memtest, might have a bad stick...also check that you have the latest BIOS........
m
0
l
February 8, 2014 8:45:49 AM

CPU/NB at 1.3 and a slightly different frequency (FSB OC) did the trick. Stable for 13 hours prime blend. Thanks for your help!
m
0
l
a c 1957 } Memory
February 8, 2014 8:50:19 AM

No worries, glad to ;) 
m
0
l
!