PC Only works with one stick of Memory ( on slot A2)

Tiago Silva

Reputable
May 15, 2014
22
0
4,510
Hello. I have this pc for about 2 years now but I decided to upgrade my case.

So I removed all PC parts from my old case and put it on a new one. ( Sticks on A2 and B2 (blues))

When i turned on the pc the DRAM LEd was on. i removed the b2 slot and it started working.

I removed A2 to B2 and put back again to A2. DRAM_LED Showed up so I click on MEMOK and it works fine. But if I have A2 and B2 installed and click MEMOK it keeps turned on and doesnt boot.

What i checked:

I checked the pins on cpu and they are all good.
Temps are amazing ( 24ºC CPU 30 ºC GPU IDLE)
Checked both memory sticks and they work fine but only one each time and on slot A2.
Black slots don't work. Only A2(blue) slot.
Clean CMOS



Now I only have 4 GB of ram installed... What can I DO?

MB: P8Z68-V GEN3
RAM: Corsair Vegeance 2x4GB Blues

PS: They worked well for 2 years.


 
Solution
Make sure your RAM sticks are on the same channel.
The Dimm slots should be color coded.
Also, check and see if you have Dual Channel enabled.
Pull the RAM and make sure it is seated right.
Also, clean the contacts and slot.
Make sure you have 64-Bit installed.

http://pcsupport.about.com/od/windows7/ht/windows-7-32-...

Run MemTest to check the RAM.

http://www.memtest.org/

Go into BIOS/CMOS and see if is sees all of your RAM.
Swap the RAM in the slots too.

Nathan Willis

Reputable
Mar 15, 2014
1,152
0
5,960
Make sure your RAM sticks are on the same channel.
The Dimm slots should be color coded.
Also, check and see if you have Dual Channel enabled.
Pull the RAM and make sure it is seated right.
Also, clean the contacts and slot.
Make sure you have 64-Bit installed.

http://pcsupport.about.com/od/windows7/ht/windows-7-32-...

Run MemTest to check the RAM.

http://www.memtest.org/

Go into BIOS/CMOS and see if is sees all of your RAM.
Swap the RAM in the slots too.
 
Solution