they were working perfectly until a couple days ago, recognizing all 12gb of ram. i recently added a new heatsink to my motherboard. Some time after that, it started to only recognize half of my total memory. I am running Windows 7 pro 64 bit.
I have tested each stick seperately and come up with no errors im memtest86+ I also have to mention that i did, when i first start trying to find the problem, run into a couple errors when testing the ram in dual channel, but it followed a crash of my computer. Which is another issue i have run into, repeated crashes of the OS.
When I look into the BIOS at the memory installed just testing one set of dual channel it recognizes both stick in their proper dimm slots(1 and 3), but only enables one stick in the slot between the two where the memory is placed, so in this case dimm slot 2.
ex|2gb sticks in slots 1 and 3, the BIOS shows them in those slots and has 2gb enabled in slot 2.
latests changes I can remember would be:
added a new heatsink to my motherboard.
installing asus doctor utility to OC my graphics card.
installing msi afterburner to OC my graphics card.
installing advanced system care 3 pro 3.8
removing the requirement to login when starting Windows 7.
any help would be much appreciated, and thank you community ahead of time
I am guessing that mixing CL7 and CL8 sticks is not a good idea.
Why not ask the pros here at Gskill? Sometimes it takes them forever to reply and when they do they are curt, probably because they are busy, but, they know their stuff.
What is really confusing is I am now only using the 2 sticks of 2gb and it recognizes both sticks but only enables one of them.
It does this with both sets of memory, and CPUz recognizes the ram as well.
All I can think is that you could kill the power, pull the battery, clear CMOS, then reboot repeatedly with one stick of RAM each time. If they all work, try two at a time, if one stick suddenly doesn't work in the second slot, something is wrong with the MB.
when I went and removed one of the 2 sticks i had installed, and rebooted I got an error in my BIOS saying that there was a change in voltage or something, and it had to reset some settings.
Then, when i switched from one stick to the other, i got the same error:
The system has experienced boot failures because of overclocking or changes of voltages.
last settings in this page may not coincide with current H/W states.
I started testing all the ram, and from what i can tell now, The BIOS recognizes the memory, but only enables the memory for slots 3 and 4, and shows them enabled in slots 1 and 2.
for my board, slot 3 is basically slot 1.
the slot order is : slot 2, slot 1, slot 4, slot 3. There must always be a stick of ram in slot 3 to boot. If i put a stick of ram in either slot 1 or 2 when i have a stick in slot 3 I get the error message I posted above the first time i boot into bios, but the every time following it is gone. whenever i put ram in slots 1 or 2, the ram is recognized but not enabled. Only ram from slots 3 and 4 can be enabled.
When you put two sticks of RAM in, they should go into either the blue or the white slots - I have not pulled up your MB manual as I don't have time now to read it but I'm sure blue is preferred, otherwise there must be something wrong with that MB.
Assuming each stick boots by itself in the first blue slot, and assuming you are not mixing RAM types, speeds, timings, makers, etc.
Alright, well I took the time today to remove the new heatsink that I installed weeks ago, and put the old one back on just in case some how that was causing the problem. Well some how it was the problem. I don't know how i could have installed it wrong, but It doesn't seem worth it for me to mess with it again. I have no plans on overclocking my computer a lot any time soon. So I'm just going to let the computer be for now.