- Joined
- Apr 7, 2011
- Messages
- 175
- Motherboard
- Asrock Z370 Extreme4
- CPU
- i7-8770k
- Graphics
- GTX 960
- Mac
- Classic Mac
- Mobile Phone
I'm running MacMan's CustomMac from 2011. See my signature. For the last few months, I *think* since the 10.7.2 upgrade, I've been getting random black screens. At first I thought it was caused by over clocking and heat. I was running at 4.2GHz stable for about a year, but I recently moved and my computer room is notably warmer, resulting in a few degrees extra temperature. I clocked everything down and the error persisted. I snooped a little further and I from the best I can tell, this is being caused by the video card. My clues being that, for one, everything in the system appears to keep running -- fans keep going and so forth. It doesn't restart.
Furthermore, in the kernel.log, I traced the blackout to the following error:
kernel IOSurface: buffer allocation size is zero
I have found some other threads that talk about similar problems using ATI 5XX0 cards, but mostly in Snow Leopard. I never had this issues -- at all -- with SL. It only seems recent.
Any clues? I just flashed the Bios on the board to FH and reinstalled Lion. We'll see if the problem persists, but I thought I'd inquire in the mean time.
Furthermore, in the kernel.log, I traced the blackout to the following error:
kernel IOSurface: buffer allocation size is zero
I have found some other threads that talk about similar problems using ATI 5XX0 cards, but mostly in Snow Leopard. I never had this issues -- at all -- with SL. It only seems recent.
Any clues? I just flashed the Bios on the board to FH and reinstalled Lion. We'll see if the problem persists, but I thought I'd inquire in the mean time.