I would say that 4GHz is a very good overclock for a 920 considering stock is 2.67GHz. Looks like ur chip aint so bad
. If you do want to run HT then I would recommend bumping down to 3.6GHz or 3.8GHz and you could probably get away with 1.3 or less vcore resulting in less heat. (4GHz w/ HT on gives me 75deg and 4.3GHz w/ HT off gives me 75deg). Also, I noticed your qpi is 1.3v, you could try bumping that down to around 1.25v and see if it is still stable. If it is I would try going even lower with it until you find unstable and then go a couple bumps above it. Decent cooler and case so no worries on that clock with those temps. Ambient temperature makes a significant difference in cooling as well so if your temps are good at the warmest time then you are laughing.
I didn't see the previous posts before posting. As with the BSOD I do not know if you can make your system hault at it or not. I'm usually around to see when mine does it. You may need 1.3qpi but I would try bumping it down in 2 increments until unstable. Also try changing multiplier to something like 191x21 or 200x20. If your memory frequency goes over 1600 you may start to get memory crashes as well, unless you overclock your ram or loosen timings but for now don't worry about that.Edited by Jake_9611 - 2/26/12 at 10:47am