I don't know a lot about i7 3820s but don't those figures for SA and vtt look a bit high ?
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Ivy-e roadmap, confirmed
- Thread starter Nickolp1974
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I don't know a lot about i7 3820s but don't those figures for SA and vtt look a bit high ?
The TDP is as good a measure of power consumption of a processor as you're likely to get. Measuring direct at the motherboard still leaves you with questions about motherboard power consumption. It's also irritating to do. The thermal design spec is somewhat worst-case, and iirc Intel are prone to redefining it for their benefit, but it's the best power consumption figure you're going to get.
A list of power drawn at the wall for various complete computers is far inferior information.
They are high but I haven't tried to take them down yet, its just the values the xmp profile forces according to aida64. Certainly no where near as high as my board wanted to use with the Samsung memory.
They'll hopefully be removed tonight providing the postie has been
They'll hopefully be removed tonight providing the postie has been
SA @ 1.35v and VTT @ 1.25v is far too high. Do not trust XMP voltages. In fact, you shouldn't need anywhere near 1.2v for both even for high overclocks.
I'd be careful if you're relying on XMP profiles, you don't want your chip to degrade too fast.
I'd be careful if you're relying on XMP profiles, you don't want your chip to degrade too fast.
I'm not relying on it so much, more putting up with it until the g.skill kit arrives then everything will get tightened down 
Postie hasn't left me anything either
Another Etailer on my black list, ordered on the 28th of March from Birmingham and still not with me, must be getting sent on horse back or something.
Postie hasn't left me anything either
Another Etailer on my black list, ordered on the 28th of March from Birmingham and still not with me, must be getting sent on horse back or something.
I have found tuning is as important as brute speed.
I was messing around with my Corsair Dominator Plats
When I run them at their normal 2400mhz with 9-11-11-25 1T 96 , I can score around 17250 in Physics in 3dmark11 with the CPU @5.1
When I increased the speed to 2600mhz with 10-12-12-31 1T 192 , I scored 15700 in the physics test, quite a big drop in performance.
I went back to their tuned 2400mhz profile very quickly.
Yep, that'll be the DRAM REF CYCLE TIME timing
lol. 96 -> 192 is a big drop. This timing does quite a lot and should be considered as important as the top tier timings. I'm running it at 88 @ 2133 at the moment, will try and get it tighter.Yep, that'll be the DRAM REF CYCLE TIME timing
Here is some I did yesterday
I tested with the physics in 3dmark11
There is a 2133mhz 9-10-10-25- 1T 88 run in there
http://forums.overclockers.co.uk/showpost.php?p=24120423&postcount=273
I have some old Corsair Dominator 2000mhz 7-8-7-20 sticks knocking around, when I get time to dig them out of one of my X58 rigs, I want to give them a go on X79 as I have a feeling those timings will top any MHz advantage normal quad channel memory has.
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It was 3D Mark 2011 that made me choose 2133MHz over 2333MHz because it's pretty much the same with my Sammy Greens:
2133MHz 9-10-10-21-1T-88 1.65v with Tuned 2nd and 3rds
2333MHz 10-11-11-21-1T-96 1.65v with Un-tuned 2nd and 3rds
Still my favourite RAM. Tiny, no heatsink, cheap and fun to overclock.
2133MHz 9-10-10-21-1T-88 1.65v with Tuned 2nd and 3rds
2333MHz 10-11-11-21-1T-96 1.65v with Un-tuned 2nd and 3rds
Still my favourite RAM. Tiny, no heatsink, cheap and fun to overclock.
This is my favourite from all the runs I did yesterday
Memory @1600mhz 8-8-8-24 1T 88 CPU @4.9ghz 49 x 100, Score 15718 http://www.3dmark.com/3dm11/6402720
This is better than I have seen with much faster kits, It would be interesting to see how tight someone can go with timings on a normal 1600mhz kit and what score they can get, they should be able to beat mine.