Double boot after enabling XMP but overclocking still works, should I be worried or is it fine?

It's probably fine, but the problems with memory voltage are known on this board. With the XMP settings already set, try upping the (DRAM) memory voltage by .05v in small increments until it no longer double boots.

If it won't allow changes to the DRAM voltage (Been hearing that some cheaper Ryzen boards aren't allowing SOC or other voltage adjustments but haven't looked into this much yet.) then you may have to simply reduce the speed of the memory from 3200 to 3000mhz manually by changing the speed multiplier of the RAM in the bios. Losing 200mhz isn't going to make any noticeable difference in performance and will likely result in stable memory check during boot. If you can up the voltage slightly, that's probably the better option but you don't want to exceed more than probably .20 total increase in voltage. Really, if it doesn't stablize after two incremental adjustments of .05v I'd put it back to the default XMP value and drop the speed.

Actually, I'd increase in whatever the smallest increments are that it will allow, usually something like .050v per increase but if it will allow smaller adjustments then that's fine. I would probably not increase past 1.45v and the lower you can get stable at the better. If it still is not stable at 1.45v then the problem might not be memory voltage at all. It's possible that to run at that clock speed you will need to OC the CPU to some degree.


This will explain the gist of that statement, and although it was written when DDR3 was the standard memory in use, the guiding principle remains the same even now.

1. Your motherboard supports 3200 DRAM so you can use any DRAM you want.
Knew that short answer in #11 was too good to last, sigh………. Oh well here we go.
While it’s true if the mobo supports say 3200 DRAM, you can run 3200 sticks on it – however, to run those pricy 3200 sticks at 3200 you need a CPU that can handle 3200; else your pricy sticks may only run at 1333, 1600 or 1866 at best.
All too often the statement is made as shown above (and believed) at face value. This is yet again a misrepresentation without including the qualifier add-on of “You need a CPU that can run DRAM at that data rate”.
This tends to go back to the days of Intel’s socket 775 and earlier. In those days, OCing the CPU and DRAM was primarily controlled by the FSB, if your mobo came in a FSB of 1066 and if left at that, your CPU (we’ll use a Q6600 for an example) would run at its native 2.4GHz, and DRAM was limited to 1066. From there, you OC the CPU by raising the FSB, if you took it to 1333 your CPU would be running at 3 GHz, and you could run DRAM at 1333 (the DRAM was limited to the max of the FSB. Moving the FSB to 1600 took the CPU to 3.6GHz and you could run 1600 DRAM, at this time the MC (memory controller) was in the chipset (most often the NB (NorthBridge)) of the mobo. When the newer sockets and CPUs followed the 775 socket, the MC was moved to the CPU.
These days the MC is in the CPU, so while yes, you can basically run any advertised frequency/data rate of DRAM, one must keep in mind, if you want it to run at advertised specs the MC, thus the CPU is more the primary factor in how high of DRAM you can run. As an example current Haswell CPUs are rated at 1600 DRAM and mid to upper tier non-K CPUs can typically run 1866 and up to 2133 sticks fairly reliably. Then for higher data rate DRAM a “K” model is preferred as if can be OCed itself and running faster helps the MC along in running even higher data rate DRAM.
AMD’s current CPU line – the FX models, are rated as “UP TO 1866 at 1 DIMM PER CHANNEL”, however, you may find yourself running into problems with the lower end (and at times the higher end CPUs even running 1866), this in part is due to the MC in the FX CPUs being more native to 1333 DRAM (according to their BIOS and Kernel Programming Guide). As with any CPU, the individual FX CPUs can be OCed to run even higher than 1866, but mileage will vary, I myself was surprised when I did the “Not Just Another DAMN DRAM Review” review/article, that my 8370/Crosshair Formula rig, was able to run all the 32GB sets of 2400, with a fairly conservatively small OC to 4.3.

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It's not intended, that I can guarantee. This is usually a result of the system either having to make a second attempt because the system found the configuration to be unstable or it triggered a restart automatically due to instability and applied one time changes to the offending setting in order to boot. It CAN do so during each successive boot.

You might want to run something like HWinfo or CPU-Z to verify if the settings in the bios are actually sticking upon the second boot once you are in the windows environment. It may be that they are not actually doing so. In any case, if everything is right there will never be cause for the system to have to make itself reset and POST a second time if everything is functioning normally.

I have this issue too causes could be different! And need some help.

8700k, x hero motherboard 3200mhz domintor RAM 750 evga g2 PSU.

I looked at my VCCIO and SA voltages which went up from 0.928v (before) to 1.34v( after )with XMP enabled and it raised MY SA voltage to 1.18v
So i lowered my VCCIO which will stop the double post but it caused my system at this moment to take long to post - power on cpu LED flash then second flash steady then goes through codes till it stop at DRAM led (steady) with code 32 ,then it goes to cpu again quickly then returns to dram code 32 then VGA & boot normally. If I highered my Dram voltage and booted PC it would go blank...all lights come on and fans but not move with further stuck code 00 ( cpu not recognised) i guess , only thing i could do was power down & so in MY case a big no no!

I can suggest you look at those voltages as some motherboards can raise them too high however i cannot comment about this being stable for the PC as i explained in my case if i lower it my board reads out possibly incompatible speed indications. Suffice to say it may seem apparently fine in OS environment but be careful because for me before lowering voltages and running with the double post i RMA'd my cpu which was diagnosed with "overheating and BSOD" i didn't feel any problems with the cpu except downclocking in AIDA 64 and prime 95, NOT in realbench
Not any thermal throttling but mhz voltages and temps would all would go down after 10 secs every time to around 3.9 from 4.3 even though temps never reached higher than 74c with good airflow and h100i AIO no overclock either
Got a new one and exactly the same thing although when i sent this one back along with the RAM and motherboard i was told everything is fine clocks,boot all of it.
When I recieved it all everything was indeed looking fine until after a day where the double post issue occured again. The clocks speeds run fine on load.
Maybe they didn't give it proper time for testing. In anycase this probably has nothing to do with your experiences but for me due to this issue with clocks i can't know if they are all related but maybe have a look at that too you may help me with something

Hardly touched this system since the day the 8700k came out and was one of the first to recieve it in UK. Just sitting there and I'm mainly using my old 4770k system, which from power on to windows screen takes around 11-13secs
Can't get any answers that would help me atm in my specific case but in the meantime something is killing my cpu's but i cannot be sure it is simply just RAM as it did all run and post even if only a day correctly. Thought of possible corrupt bios chip maybe otherwise faulty board.

Just thought I'd share this with you,better you stay careful. Tonne of unintentional bad advice out there, that won't cost them but cost you big! although what dark breeze's take on this seems wright.
About my cpu new one and old both of them report in cpu z and HWMONITOR that my clock speeds jump up n down 4 or 5 cores at 4.6 mhz without MCE on at idle when it is rated to run lower...don't understand why,checked in SIV monitor and it reports up to 4.3

Hope any info here may help you and i too need help.

For now i think best to see if you can get into your settings and lower the RAM speed.

If you do lower the VCCIO if you noticed it high then do report back what you find after lowering it but remember your xmp profile will higher those voltages to run at that higher speed so just lower a little if you do enough to stop the double post. If you do wish to do this then report if there are any 'new' effects from doing so.

Great, if you start your own thread I'm sure you'll be a lot more likely to find help than you will with a hijack.