Just put together a new build its z170 ftw with corsair 8gb ram x2. At first it would boot straight to bios and that was it. After messing around with a few things i realized it was a memory issue. I loaded up the xmp profile and now it wont even boot to bios i keep getting code 55. I tried in all the slots, i have a tripple checked the cpu pins and i have also tried backing off the cooler.

Help me pls

I would update the bios to the latest version.

In order to enter the bios again, you need to clear the CMOS before.

It doesn't look like you have a second BIOS to switch to but the BIOS chip looks to be easily removeable and can be replaced easily. Contact EVGA support and see if they would be willing to send you a replacement BIOS chip. 

It is a possibility. Check the part number against the compatibility list for your motherboard. Sometimes the RAM manufacturers also have a compatibility list you can check. Just because your RAM isn't on a compatibility list doesn't necessarily mean it won't work it just means it hasn't been officially tested yet.

What exact memory are you trying to use? Not being able to get back into BIOS even after clearing it and removing the battery makes me think that the BIOS chip might be faulty.

Well, it looks like your default memory slots are #1 and #3. For some reason they keep getting changed around. I can't find a compatibility list for your RAM yet. I don't think using the XMP setting will kill your RAM. The memory I am using isn't on the compatibility list for my motherboard either yet it works fine and has for years. Try unplugging your PSU from the wall to disconnect all power to your PC overnight. Also remove the CMOS battery too and let all of the charge drain out of it. In the morning give it another shot. Hold the button down to clear CMOS. Install the battery and do it again. After that plug everything in and power it up and see what happens. Make sure the power connector to the CPU at the top of the board is inserted firmly too.

What CPU are you using?  Have you checked to see if there are any bent pins in the CPU socket?

muzza85
lol your not wrong about the default slots the manual says 2 and 4 and when i was trying to work out what was wrong o google and the forums i kept seeing 1 and 3. Ill stick to 1 and 3 and give what you said a go. Thanks

My motherboards were always 1 and 3 until this Z97 that switched to 2 and 4. Here's what your manual says, 1 & 3:
 

 
 

That's weird. I just looked at the online manual in the EVGA Products / Support section. Here is what my manual says about using 2 and 4:
 

I always had 4 sticks so it didn't matter until I bought two 8 GB sticks. I didn't feel like reading my manual so I used 1 and 3 and it worked fine. Then I read the manual and moved them to 2 and 4. They still worked. If it booted once in 2 and 4 there's no harm in trying those slots again. I wish someone would make up our minds where these RAM sticks belong.