Batch "C" i7 920 DO Phase change overclock

Hi, I have the same board as your, currently at 4.2GHz ^^

Are you sure that it's the RAM stick that's the problem? Did you try the other sticks in the slot? The P6T is known for having problems with RAM slots when overclocking, head over to the Asus' problems, and ther are a couple (hundred) threads of ppl whose board only sees 4GB out of 6GB :/
 
invisible69 said:
Hi, I have the same board as your, currently at 4.2GHz ^^

Are you sure that it's the RAM stick that's the problem? Did you try the other sticks in the slot? The P6T is known for having problems with RAM slots when overclocking, head over to the Asus' problems, and ther are a couple (hundred) threads of ppl whose board only sees 4GB out of 6GB :/
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Interesting, I'll have a look at that. It has sort of forced my hand with the memory anyway, I am Chopping it in on an RMA (already supplied) and getting some of the Geil Perfect Storm LowLatency 2Ghz 8/8/8/21 @ 2Ghz stuff instead.

The one stick does not get recognised now matter which slot it is in, So I dont suspect the board at this time, Many thanks.
 
Ok - finally replaced my faulty tripple channel memory, I was going for the GSkill 2Ghz low latency perfect storm (just over £200) but after reading this -
http://www.clunk.org.uk/forums/user...-12800cl6t-6gbtd-1600mhz-6-7-6-18-review.html I decided to save my money and swap my faulty Cas 9 2Ghz stick and get some money back.

Initial results were good with the memory at standard 1600Mhz 6-7-6-18, but not on par with the previous dual channel at 2Ghz. So following Gskills forum for advice I overclocked my 12800 LL DDR3 to that of the perfect storm at 2Ghz. wow what a difference SiSandra now reports 33.341GB/s bandwidth which is pretty impressive. I was a little concerned having a QPI voltage of 1.45V but the Chipsets are not noticably hotter then before.

I am now running at a Full 8 Hours Prime stable (and anything else I can throw at it) @ 4.242Ghz (202Mhz x 21), my system boots easilly into 4.5Ghz, but as rightly decribed by KitFit1 my Standard Vapo can only hold the temps for a short period (on 100%) before running away and loosing its grasp on negative temps. I am sure my VapoLs could manage a stable 4.4Ghz but it seems I am on the hairy limit of what my 650W PSU can manage with my (getting OLD) 8800GTX. It is stable with CPU and Memory benchies, but once I try to run any 3DMARK progs I soon get a failure and crash (GFX is not getting hot, seems to be lack of stable voltages) looks like the next upgrade along with graphics is a nice 1Kw PSU ;)
 
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