Hello everyone,
I am new to building a PC however I have done my home work and studied lots of the forums/web but I come to you experts with a problem. On my first power up of my PC the CPU cooler (watercooler) comes on fans spin but no case fans spin and I the memory_error_led (#3 in the book) is on with the Post code going straight to "C" and doing nothing more than that (no display) I read about this and lots say could be CPU, too tight cooler, bent pins, or something similar.
 
I have tired using no GPU, and one stick of RAM and also switching to see if it works in #2 or #4 only but that never changes anything. I have taken off the cooler and looked at the CPU and it looks fine (to me) and didn't tighter the cooler down very hard this time. Still it only says "C".
 
So I tired something (maybe not the brightest?) but I took all the RAM out and turned it on. Sure enough all the fans come on and everything works but of course it has the memory_error_led (#3) and the post code is #53 meaning doesn't find RAM (which makes sense). So i thought well, I will plug a stick of RAM in (when the PC is still powered on) to see what will happen. So after I clicked in the RAM it kind of resets and the Post code goes through some changes of numbers as it says in the book it will do and then there is 2 "beeps" from the MoBo (idk what that means) but just like magic everything works and it loads the screen to Bios like normally it should. So I updated the Bios to V 1.12 and saved and reset it. It worked there however when I turned the power off by the front display button, when I turned it back on it went straight back to Post Code C and doing nothing.
 
SO I am really lost because I looked all over the internet and also created a ticket with Evga but so far can't figure out anything new to try. As I said I am new at this building PC's and it was going fine until this point and I can't seem to figure out how to fix it. So I come to you and hope somebody has an idea.
 
Thank you for any help! Drew
 
BTW, my PC build is as follows....
 
i-7 8700K
Evga 280mm CPU cooler
Evga Z370Z Classified K ATX LGA1151 MoBo
Corsair Vengeance LPX 32GB (2x16) DDR4 3000 MHz
Samsung 970 500GB M.2
Samsung 860 1TB SSD
WD Black 2TB HDD
Evga RTX2080 FTW3
Corsair Obsidian 500D Case
Evga Super Nova P2 750W PSU
Windows 10

UM if you did  put your RAM into a "Hot" (power On)  MB & it still works ---> count your lucky stars
 
Page 16 manual  https://www.evga.com/supp.../files/134-KS-E379.pdf
 
6.    4-pin Supplemental ATX Connector  --->(You Can Use this One for Extra Power to CPU)<---
The ATX power connector on the Z370 Classified Kprovides additional power to the CPU. This connector requires the appropriate 4-pin ATX power that is provided by your power supply –often as part of a 4+4-pin CPU connector. This connector is not essential to running the system, but may provide additional power to the CPU under a heavy load, overclocking, and/or benchmarking. The 4-pin power connector may be installed in addition to the 8-pin EPS connector; it may not be installed in place ofthe 8-pin EPS connector.

7.    8-pin EPS Connector  --->(You MUST Use this ONE to Power CPU)<---
The EPS is dedicated power for the CPU (See Page 38for more specifics to the connector itself, and associated wiring/pinouts). Carefully choose the correct power cable by consulting with the installation manual for your power supply. This connector is designed to only work with an EPS or CPU cable. System builders sometimesmake themistake of plugging in a PCIe8-pin or 6+2-pin connector, which will prevent the board fromcompletingPOST and possibly short or damage the board.Although PCIeand EPScables appear similar, they are wired differently and attaching the wrong connector may cause damage to the motherboard.Alternatively, if no power cable is connected or detected, the system will not POST and will hang at POST code “C.”
 
 
 
 
check the CPU Power from PSU to the MB


-- the Solid 8-pin end of the power cable goes into the PSU @ (CPU1 or CPU2) ---> the 4-pin + 4-pin end goes into the MB @ item #7 page 12 manual

We All started on Day 1 learning how to correctly build a PC
 
Is the RAM on the EVGA or RAM Mfg Approved list for this MB

I have now took my PC back apart to send pictures to Evga to see about the CPU socket maybe having bent pins or something like that and to see about maybe something wrong with the RAM. I tried while I had it out doing a bench boot with the CPU/cooler and 1 DIMM installed with the  say C post error code with the memory error led on. I also took a picture of that and I figure I will share this here hoping someone might be able to help me.

Are Both the (ATX 4-Pin (OPTIONAL)) and 8-Pin EPS/CPU Cables are Locked into the Sockets?

 
Use A Single Memory Stick in Slot 2 and test with Each of your Sticks
Your memory might just be bad or not well suited for this Motherboard.
What is the Full Model/Part Number of your "Corsair Vengeance LPX 32GB (2x16) DDR4 3000 MHz" Memory
 

Test set RAM to Standard speed = Auto in BIOS & not XMP  (XMP = RAM is OC)
 
You could also set RAM timing & Volts manually in the BIOS per the RMA Mfg specs = look at the numbers on the RAM sticker

bcavnaugh
Power on the Computer then Push and Hold the Small Red Button on the Motherboard and hold to 10 Seconds.

To be clear do you mean the clear BIOS/CMOS button on the back i/o panel? Just wanted to make sure. As for the memory so far I am only running whatever is standard speed because I have yet to really open the BIOS correctly. So I was just curious if some times RAM will not run unless you change something but from the sounds of things it should work on the standard "detuned" settings and then tweak it to performance in the BIOS, so something seems wrong with what is happening to me.

mrcivic
So i thought well, I will plug a stick of RAM in (when the PC is still powered on) to see what will happen.

As a heads up, plugging anything into the system while it is on, especially a piece of hardware such as a GPU / RAM, etc is a bad idea. I would recommend refraining from doing so in the future.

mrcivic
I have now took my PC back apart to send pictures to Evga to see about the CPU socket maybe having bent pins or something like that and to see about maybe something wrong with the RAM. I tried while I had it out doing a bench boot with the CPU/cooler and 1 DIMM installed with the  say C post error code with the memory error led on. I also took a picture of that and I figure I will share this here hoping someone might be able to help me.

Would you be able to provide some better pictures of the socket from an aerial view, and some different angles as well? I want to say I may see a bent pin from your picture, but it's in an area where it is very blurry, and it could just be my eyes.
 
-Jacob B.

I believe I see two bent pins. And I believe it is not covered under warranty.
You can straighten them out. Get a magnifier and a ball point pen with the ink head/stem removed.
Gently get the pin to go in the tube and move it over.
You can use a needle too to move it back in place.
Have good lighting and try if you can rest your hand on the table or board so your hand does not shake.  
I had my daughter hold and shine a flashlight in the area to see better.
Take your time. Good luck

I will wait to hear from Evga officially before I try to bend them back because I am so new at this. The part that really sucks is I know it wasn't looking like that the first time I installed it but I took it part maybe 3 times to do pictures and to look for bent pins. Hell I might get lucky and bend things back to looking perfect only to find out it won't post and the memory error led is on. 

Thats the problem.. its never worked right since the first time I plugged it in, and im 90% sure the first time I put the CPU in it went right in. But I guess will see what happens.

Yup, it figures. Its ok though I will get a new one and hopefully the board is not faulty this time making me take the CPU in and out 5 times. I am sure that has something to do with bending the pins, the more you mess with it the more chances.
 
Lucky I can try a new board all together and hope for not such a bad experience. I had great luck with my Evga 970 FTW card and that is why I basically bought everything Evga made. Hope it was just bad luck of the draw.