RAM not recognized randomly

[zerocounter]

Hello, I'm having a problem for some while.

Every time I turn my PC power on, the newly bought RAM randomly recognized or doesn't. Both Windows 10 and newly updated BIOS.

Did got a replacement, but didn't fix the problem.

Don't know the exact cause and hope someone gives me the answer or advice.

 

 

Symptoms are..

 -Turning the PC off has a random chance of recognizing the RAM.

 -Just restarting in Windows10 or pressing the reset-button on the PC doesn't seems to work.

 -The new RAM only work like this on the 1st slot from the left.(other slots doesn't work at all, as far as I tried.) the old RAM I have is in the 5th slot from the left.(total 8 slots)

   new=DIMM_A1 / old=DIMM_D1

 -As long as the power in on the recognition stays.(even it is on sleep mode.)

 -Not doing any overclocking.

 

PC spec is..

CPU
   -i7-5820K
MotherBoard
   -ASUS X99-pro usb3.1
RAM
   -Corsair Vengeance LPX 8G (24000Mhz)
   -Tammuz DDR4 8G PC4-17000 CL15 (2133MHz)(new)
GPU
   -ASUS GTX980 STRIX
OS
  -Windows 10 64bit

POWER

  -SuperFlower LEADEX platinum 1000W(changed while having this problem nothing changed)

 

P.S - Haven't used English for a long while, sorry if my English feels odd or wrong.

[ImNotThere]

English is chill:P

Have you tested the ram on another mobo?

[Technomancer__]

reseat ram

make sure its all the way in

[zerocounter]

8 minutes ago, ImNotThere said:

English is chill:P

Have you tested the ram on another mobo?

No. I have another PC but it use a DDR3 RAM and don't have anyone near to ask.

[ImNotThere]

1 minute ago, zerocounter said:

No. I have another PC but it use a DDR3 RAM and don't have anyone near to ask.

Do you have anykore ddr4 laying around to test all dimm slots?

[zerocounter]

1 minute ago, ImNotThere said:

Do you have anykore ddr4 laying around to test all dimm slots?

That reminds me, I have another one (before I bought the new one) but somehow the PC was getting slower(drop of frame-rate while playing games, Playing some Youtube video made the PC heavily laggy)  while I used it, thought it was broken and pulled it out of the PC since that problem was fixed.

Should I test it with that?

[ImNotThere]

3 minutes ago, zerocounter said:

That reminds me, I have another one (before I bought the new one) but somehow the PC was getting slower(drop of frame-rate while playing games, Playing some Youtube video made the PC heavily laggy)  while I used it, thought it was broken and pulled it out of the PC since that problem was fixed.

Should I test it with that?

Try it, if you have the exact same issue, dead dimm slots, if the issues arent there then its tge other ram

[zerocounter]

1 minute ago, ImNotThere said:

Try it, if you have the exact same issue, dead dimm slots, if the issues arent there then its tge other ram

Thank you, I'll test it as you advice.

[ImNotThere]

Just now, zerocounter said:

Thank you, I'll test it as you advice.

Report back

[zerocounter]

20 minutes ago, ImNotThere said:

Report back

Tested it, and the result was...

1, DIMM_B1, recommended second RAM slot, didn't worked before, didn't recognized.

2. DIMM_A1, did recognized.

 

Wasn't sure to write it on the symptom, but I think once it recognize the RAM, for a few hours the PC will keep recognize it the RAM even the power was off and turned on.

Guess the Motherboard's DIMM slots are broken, guess I'll try to get a replacement if I can.

Thanks for the help.

[zerocounter]

1 hour ago, Ethocreeper said:

reseat ram

make sure its all the way in

Thanks for the reply. I did reseat the RAM while I tested the other slots but didn't work.

Turns out the DIMM slots seems to be broken.