Question Motherboard refusing any speed but 2133mhz - solved

andyeddy

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Mar 6, 2011
6
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18,510
Just noticed that xmp profile has stopped working whilst checking cpuz a week or two ago - so tried 1.15 soc voltage - 1.35 dram voltage - and manually setting 1866/2400/2666/2800/2933/3200 and every time it just loads up default 2133 jedec speed - unusual that setting manually has no effect on changing dram speed - tried XMP 2933 and 3200 and numerous other settings and still no good -tried memory try it setting with bios forcing 2933 - 16 - 16 - 16 -18 timings and it still just loads windows and cpuz shows 2133!!

have image of bios default settings with XMP enables and CPUZ at latest version - at a loss - was running at 3200 before - then noticed few weeks ago that now at 2133 - temps are fine - has loads of airflow - in corsair 570x case and ram only running at 30c.
bios is latest version - was happening on old bios and newest bios - also cleared cmos and same happened.
annoying - but its always been 100 % stable - no crashes!!
any help welcome and thanks

full specs as follows

CPU - AMD Ryzen 2700
Mobo - MSI Gaming pro Carbon AC B450
RAM - Corsair vengeance Pro RGB 3200mhz 2x8 gig
GPU - Zotac NVIDIA GTX 1060
Corsair CV 650 watt psu
Corsair 570x case
1x nvme + 3 x sata ssds
coolermaster 240 ml aio

Any suggestions/help would me much appreciated

thanks

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Your Bios image file shows DRAM frequency set on AUTO. I don't have your Motherboard but what is the alternative to AUTO. If you can change it to Manual then that may be your issue. Don't forget to save and exit after making changes.

In case you have somehow corrupted your Bios then clear CMOS or update and flash the Bios to latest using your rear IO panel. You also have M_Flash whilst in Bios.
 
Last edited:

andyeddy

Distinguished
Mar 6, 2011
6
0
18,510
tried and no difference - will take out ram sticks and try different slots but will start with 1 and go from there - will update in a wee bit thanks
 

andyeddy

Distinguished
Mar 6, 2011
6
0
18,510
so update - re-flashed bios again - reset cmos jumper - removed battery etc - tried one stick and xmp 3200 is now working - rebooted with 2 stocks in and also xmp now working - cpuz confirming 1600mhz dram rate with correct timings - yay!! thanks for help all