Gaming 3 Z170x boot issue with XMP

[Flangehammer99]

Hi,

I have just put together a new rig (has been many years since I have done this).
Main components are:
Gigabyte Gaming 3 Z170x Mobo
Skylake 6700K i7 plus watercooler
Corsair Vengeance LPX DDR4 3200
Samsung M.2 512Gb SSD effort
Windforce GTX 980Ti GPU

Plus a few other bits and bobs...

After putting it all together I was faced with the machine not booting at all. It would not display a BIOS screen, and just went into a powerup/down loop...
Pulled all components....and eventually found it would boot if I left one of the two 8Gb memory modules in place...
Reseated everything, and enabled XMP to drive the RAM up to 3200...

At this point the machine was only warm booted whilst I installed Windows 10 from a USB stick...

All seemed well....performance was excellent. Drivers installed and so on...

At that point I powered the machine down. Next time it was fired up, an error relating to a boot failure/memory was displayed. BIOS prompted me to either load defaults, or enter BIOS.
Checking it over, I could see that the XMP 'Profile1' was still loaded, yet the speed had dropped down to 2300...
Disabled/Enabled 'Profile1' again within XMP, warm restart, and all was once again well....Windows was perfectly stable, and so on...

However....I now find if I try to leave the XMP profile enabled, the machine throws an error every time its cold started.

Any ideas??

[dmdilks]

I'm getting the same thing. If I leave it in auto everything is fine. I'm running 4x4-gb sticks 2400 memory. The memory is running at 2133. They do have a bios update to fix it. I haven't tried it yet. I might just go buy some 2133 memory and forget it.

[refosk]

I had the same problem with XMP, I solve this by uninstalling app center and all the applications, set XMP to profile 1 and now pc boots every time.

[dmdilks]

I had the same problem with XMP, I solve this by uninstalling app center and all the applications, set XMP to profile 1 and now pc boots every time.

The op had it from the start with nothing loaded. I had nothing loaded either and was having the problem. What memory are you running? The bios I'm running is F2. I don't know what the OP is running.

I know they have a updated bios F5b. Will it fix the problem I don't know do I take the chance on updating it. Everything is working fine at this point other then the memory read problem.

[dmdilks]

Don't update to F5b it doesn't help and really makes things worse. I was able to boot with F2 in default settings with the 2400 running at 2133. Now every cold boot it goes into a boot memory error. I'm going back to F2 and see if it goes back to normal boot before the update.

[refosk]

Don't update to F5b it doesn't help and really makes things worse. I was able to boot with F2 in default settings with the 2400 running at 2133. Now every cold boot it goes into a boot memory error. I'm going back to F2 and see if it goes back to normal boot before the update.

I don't agree, with F2 my pc never boots at 2400, with F5b always! I bet the problem lying in App center.

[dmdilks]

I went back to F4 and everything is fine again. Plus I haven't even got to the point to load APP center.

[dmdilks]

I have done one other thing is I was getting a boot and shut right off. Then it would boot and run fine. Well I change the memory to 2133 and everything works great. No more double boot, no more memory error. Plus no more jumping through hoops to get it to work.