Now, the BIOS is running the RAM by default at around 1300mhz.
I set one of the profiles on the mobo BIOS (profile 2) to run it 2400mhz.
I used that all day and it ran fine.
I then played Batman:AC a bit later for about an hour, after which the game hard locked. Couldn't alt+tab or ctrl+alt+del. Nothing.
just had to reset my PC.
My question is this. Being that the RAM frequency is the only thing I changed through the mobo. Is that what caused the lock up? I assumed so but I just would have thought it would be a BSOD if something was wrong with it.
Why the lock up? AFAIK the mobo alters the voltage and stuff for you.
Does anyone know if there is anything else I would need to change to get it to work right?
Or could it have just been the game? (haven't actually tried any other games as I changed it back to default)
My advice would be to not OC your RAM. Pretty much the only reason to do so these days (in regards to gaming) is if you rely on an APU for graphics, which shares the system memory. Otherwise you will only be getting a 1-2fps difference between running ram at 1333 and 2400MHz.
I know that's not really answering the original question, but there's my 2 cents.
"So is that then why it locks up? I would have thought running the RAM at a higher frequency than the highest advertised one would just mean it wuldn't work?
Or would it just make it unstable?
I'm afraid I can't see what voltage the mobo is running the RAM at as it's all done on auto."
When you run RAM with not enough power, which is what I think is happening here, it can present itself as instability (lockups), or just not working at all.
In your situation what I'd do is set the memory slots that are occupied to Manual, and input the voltages (1.65V) directly and see what happens.
Hmmm ok thanks guys. I will try and manually adjust the voltage.
To be honest I am not overly concerned to OC as I don't really think my system needs any extra help. I just wondered as I thought it might make quite a large difference.