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Help! Half of my RAM-Slots won't work!

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Hello everybody,

first of all: Sorry, English is not my native language, but i will try my best!

 

So I opened a thread in this forum, i bought several parts for my server, as advised in this forum.

Now that they all have arrived, I build the server, but it won't work!

 

The setup:

Mainboard: ASRock EP2C602-4L/D16

RAM: Samsung 64GB (8x8GB) PC3L-10600R DDR3 1333Mhz ECC R 605313-071

CPU: 2x Intel Xeon CPU E5-2670 SR0KX 2.60GHz LGA2011 20MB

 

 

The problem is: Half of the ram is recognised in bios, but it is not working.

Every ram-module in the slots on the left side (e, f, g and h) is doing fine, but for every ram-modul installed on the right side (a, b, c und d) i get the report that the module did not pass the cpu memory test.

I rearranged the ram-modules, i tried to use only the white slots, only the blue slots,... every different module is doing fine on the left side. I also switched the cpu's but this didn't help too.

 

So please: Have you any advice for me? Anything to narrow down which parts may be broken? Or do i need to change something in the bios?

Thank you very much for your help in advance!

 

 

 

Please note that in the pictures the ram-module in f1 is missing - i didn't installed it right, i already fixed this. All the other modules are installed in the right way.

IMG_20160408_19255801.jpg.1c94d201f5c9adc01c140bc0530ad0c5.jpg

IMG_20160408_19244901.jpg.4036764ebea255e72c083394758142d6.jpg

I'd contact ASRock, you may have a bad motherboard.

You likely do not have the ram seated properly. It does take quite a bit of effort to get the ram properly inserted into the ram slots. Try reseating the ram.

I had this issue on my most recent SuperMicro boards.  One bank of DIMMs would not recognize once I mounted it in the case.  Turns out, the motherboard was shorting out. 

 

So, test the board outside of the enclosure, or set the MB on a piece of cardboard or something.

  • 2 weeks later...
  • Author

It's been a while but I figured (after trying everything I found online) that either my MB is defect or my RAM is incompatible. Turns out the board really was defective, got a new one now and everything is working flawless!

Just wanted to let you guys know in case someone has a similar problem.

 

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