Gigabyte motherboard cant reach 1866 default ram speed

roelcha · Aug 18, 2015

I Just bought a ga 970a d3p and corsair vengeance black 1866 4 x 4gb (4 sticks cmz8gx3m2a1866c9) both of which are supposed to run 1866 without oc but when I try anything over the 1366 default setting i get bsod.

I am running windows 7 ultimate 64 bit with a 240 gig ssd and fx 9590 processor.

Please help

Tradesman1 · Aug 18, 2015

Go into BIOS, look for EOCP or XMP for the DRAM, enable it, then raise the CPU/NB voltage to 1.25 and the DRAM voltage to 1.56

roelcha · Aug 19, 2015

I have tried messing with every setting i can think of for hours tradesman but as soon as xmp is switched on the computer crashes

Tradesman1 · Aug 19, 2015

Try XMP then raise DRAM voltage + 0.05 over the sticks spec voltage and raise the CPU/NB voltage to 1.2

roelcha · Aug 20, 2015

Thanks for your help tradesman, tried it and played around for a bit but had no luck, still the same outcome, as soon as xmp is turned on the computer wont start

roelcha · Aug 21, 2015

Tradesman1 :

thanks again for your help but same result?

Tradesman1 · Aug 21, 2015

Do you have the latest BIOS, the 9590 should handle 1866 without a problem

roelcha · Aug 21, 2015

Tradesman1 :

Thanks again tradesman, but the first thing I did was update to the latest bios.

Any other ideas?

Tradesman1 · Aug 21, 2015

Have you tested each stick individually with Memtest to ensure both are good

roelcha · Aug 21, 2015

no Not yet, I will do it now, but I have 4 sticks not two. Thanks again

roelcha · Aug 22, 2015

Tradesman1 :

Hi Again,

I have been running memtest86 for about 6 hours now with zero errors. the ram is running at 9 10 9 26 888 mhz. I will continue to run it for the rest of the night, but assuming that there are no errors do you have any further ideas?

Much appreciated

roelcha · Aug 22, 2015

Tradesman1 :

https://www.dropbox.com/sh/mvf5wwbyjadstr6/AAAAAnzMIE4zQvkfdl_tHCwwa?dl=0

Don't know if this helps but here is a dropbox link which shows the memtest86 screen which seems to say that xmp works?

madmatt30 · Aug 22, 2015

post a tab from cpu z showing memory & spd tabs with the timings showing
memtest is showing 888mhz (1776mhz) which is off anyway.

to get any chance of 4 sticks running at 1866 on a gigabyte 970 board Ive 100% always had to enter timings manually.

roelcha · Aug 22, 2015

madmatt30 :

I just ran cpu z and uploaded the pics to the dropbox, have a look and tell me what you think.

Ta

madmatt30 · Aug 22, 2015

Every GB 970 board ive used has a nasty habit of trying to set 1333 timings when you set ram to 1866mhz.

What id do is write those timings from the 1864 jedec box down in order.
Enter bios ,set your ram to 1866 & enter those timings manually - you have to do this for all 4 ram channels separately.

If still no dice then try 1600 MHz with the same 1866 timings.

Edit - with 4 sticks installed set the command rate on all channels to 2T.

roelcha · Aug 22, 2015

madmatt30 :

Every GB 970 board ive used has a nasty habit of trying to set 1333 timings when you set ram to 1866mhz.

What id do is write those timings from the 1864 jedec box down in order.
Enter bios ,set your ram to 1866 & enter those timings manually - you have to do this for all 4 ram channels separately.

If still no dice then try 1600 MHz with the same 1866 timings.

Edit - with 4 sticks installed set the command rate on all channels to 2T.

Hi matt,

tried what you said, and still cant get it to boot correctly, I have now been able to get it to boot with the new timings and xmp but cpu z says the ram is still running 666 even though in the bios it says 933?

However the one thing that confuses me is that there are only options to change timing settings a and b not slot 1-4.

any ideas?

Thank you

madmatt30 · Aug 22, 2015

roelcha :

older board than my ud3p mate,a & b timings may be all it has on your board.
cpu-z may be readin g wrong mate - you never know.
try hwinfo64 mate - untick the sensor only box when you run it so you get the full osd version running - ram speeds/timings are shown bottom left

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