Gigabyte H77-DS3H behaves weird

[chnapo]

Hi guys. I have a problem with this motherboard and RAMs. When I plug those RAMs into another PC, both work. If I plug one certain ram of those two into one certain RAM slot in the PC, it will work (other slots are free). When I plug this working RAM into any other slot, PC will not work (it will restart after 3 seconds over and over). When I plug the other RAM in the same slot (that worked with the first one), PC will not work.

So conclusion is, only one certain RAM works only in one certain slot. No other setup works. What the hell? Furthermore, there is a problem with GPU: http://www.tomshardware.co.uk/answers/id-3611924/plug-gpu-pci-picture-mobo-gpu.html Is the mobo dead?

 

[rocktalkrock]

Ram can work in one motherboard, but not another. That's why each motherboard has a memory support list. The 2nd stick of RAM that does not work may just be a poorer quality than the first stick. When using 1 stick of RAM it will only work in one slot, usually the 2nd slot.

 

[chnapo]

Ah, sorry, forgot to mention that both RAMs were bought as a single kit (2x4GB Kingston HyperX 1600mhz DDR3) and they worked in that PC for several years. I was 1-2 weeks away and when I came back, PC would not start (turn on and black screen) and after several attempts (hard restarts) it did not even manage to run a few seconds (it did turn off after 3-4 seconds, not starting CPU cooler, and turn on itself again, and repeat). Then we tried runing it in different RAM setups.
Let's say there is RAM 1 and RAM 2 and slots 1,2,3,4, while slots 1,3 are blue and 2,4 grey (I suppose that is for dual channel). Before, it worked with RAM 1 in slot 1 and RAM 2 in slot 3 (dual channel setup). Now we only got it runing with RAM 1 in slot 1 and RAM 2 not used. If the RAM 1 is in some other slot, it will restart as described above. If the RAM 2 is in any of 4 slots (and RAM 1 not used), PC will restart as described above. If I plug RAM 1 into slot 1, and RAM 2 into any other slot, PC will restart as described above. The only runing setup is RAM 1 in slot 1 and no other RAM in no other slot.

When I plug those RAMs into my friend's motherboard, that also supports DDR3 1600MHZ, they will both work and when I ran diagnostics, it did not show any RAM as faulty.

I don't know if this is also important, but when I run PC with RAM 1 in slot 1 (now the only possible setup), Windows says that it has 4GB of ram, but only 3,89 usable.

 

[rocktalkrock]

Ah, sorry, forgot to mention that both RAMs were bought as a single kit (2x4GB Kingsto HyperX 1600mhz DDR3) and they worked in that PC for several years. I was 1-2 weeks away and when I came back, PC would not start (turn on and black screen) and after several attempts (hard restarts) it did not even manage to run a few seconds (it did turn off after 3-4 seconds, not starting CPU cooler, and turn on itself again, and repeat). Then we tried runing it in different RAM setups.
Let's say there is RAM 1 and RAM 2 and slots 1,2,3,4, while slots 1,3 are blue and 2,4 grey (I suppose that is for dual channel). Before, it worked with RAM 1 in slot 1 and RAM 2 in slot 3 (dual channel setup). Now we only got it runing with RAM 1 in slot 1 and RAM 2 not used. If the RAM 1 is in some other slot, it will restart as described above. If the RAM 2 is in any of 4 slots (and RAM 1 not used), PC will restart as described above. If I plug RAM 1 into slot 1, and RAM 2 into any other slot, PC will restart as described above. The only runing setup is RAM 1 in slot 1 and no other RAM in no other slot.

When I plug those RAMs into my friend's motherboard, that also supports DDR3 1600MHZ, they will both work and when I ran diagnostics, it did not show any RAM as faulty.

I don't know if this is also important, but when I run PC with RAM 1 in slot 1 (now the only possible setup), Windows says that it has 4GB of ram, but only 3,89 usable.

Although your Kingston HyperX 1600mhz DDR3 RAM was bought as a single kit, the fact that 1 stick works alone in slot 1, but the 2nd stick does not work alone in slot 1, tells you they are not exactly the same. The 2nd stick may be damaged for some reason. Does it look any different? Are the contacts clean? Are all the memory slots on the motherboard clean?

Also, what revision is your GA-H77-DS3H motherboard? [1.0, 1.1 or 1.2]