Rosco Posted January 15, 2012 Posted January 15, 2012 (edited) So I am in the process of oc'ing my i7 950. At this point I am at 4.2ghz @ 1.376vcore and max temp under linX is so fan 80c. My question is whether this is good or not, I will be running a prime blend test to ensure stability but for nou I am tuning everything in and would like to get some input from the forum. Thanks in advance. edit 4.2 is making me crazy trying to get stable in prime, going to try to get 4.0 @ 1.352v stable in prime so far its only topping out at 72c so temps are not a issue at these speeds. Edited January 15, 2012 by Rosco Share this post Link to post Share on other sites More sharing options...
d6bmg Posted January 15, 2012 Posted January 15, 2012 Temperature looks ok to me. Share this post Link to post Share on other sites More sharing options...
Tjj226_Angel Posted January 15, 2012 Posted January 15, 2012 considering my 950 needs 1.38 volts at 4ghz and the max temp is 95 degrees, I would say you are doing well. Share this post Link to post Share on other sites More sharing options...
wevsspot Posted January 16, 2012 Posted January 16, 2012 Rosco, at 4.2Ghz my i7 950 hits 82-83C running LinX for an extended period of time. You're ok on the temps - remember that in real world every day use all four cores won't be loaded to 100%. Actually you're doing pretty good because mine is under water. I think the twin GTX 570s heat up my ambient quite a bit If you're having trouble getting stable at 4.2Ghz bump up your QPI voltage a bit if you haven't already. 1.25 to 1.30v is a good starting point. Share this post Link to post Share on other sites More sharing options...
Boinker Posted January 16, 2012 Posted January 16, 2012 A little more cooling would help. I Have a 950 at 4.11ghz right now under water and my load temps on prime 95 are 72c top temp core. I would enjoy the current overclock and keep hunting past 4.20 if I was in your position. My vcore is at 1.38 and my qpi link is at 1.41 with my PLL at 1.92v And NB is at 1.36v. Just remember at the voltages I'm at other then the vcore is the danger zone. Be cautious if you push the envalope as I am. Share this post Link to post Share on other sites More sharing options...
wevsspot Posted January 17, 2012 Posted January 17, 2012 Boinker, are you running with HT enabled or disabled? If those are your load temps with HT enabled and at those voltages I'm really impressed with your loop. Care to share the details so maybe the OP can consider going w/c someday? Share this post Link to post Share on other sites More sharing options...
Boinker Posted January 17, 2012 Posted January 17, 2012 Boinker, are you running with HT enabled or disabled? If those are your load temps with HT enabled and at those voltages I'm really impressed with your loop. Care to share the details so maybe the OP can consider going w/c someday? Wonderful suggestion Wev. I would be happy to share. Just I have not determined max load. I will operate Prime 95 for 30 minutes and get my temps recorded. The processor and two gtx 480s are in the loop together in serial. loop order Res>Pump>CPU>GPU1>GPU2>Rad Water blocks: Swiftech Apogee XT 1366, X2 EKFC480's copper acetyl with backing plate Pump: Swiftech MCP655 variable speed. (set to max) Radiator: XSPC EX360 Fans: X6 Scythe Kaze-PWM 1200RPM fans in push pull over radiator Reservoir: XSPC Dual bay Pump/Res for MCP655 (the res that never bleeds properly) Fittings: all Bitspower silver wide bodies Tubing: 1/2 - 3/4 Duralene Clear, herbie clips for Clamp Fluid: Walmart distilled water, PT nuke, 1/4 bottle feser View Green Dye @ 4.217Ghz With HT enabled. 1.392 Vcore Right now my current ambient is 70'F (21.1c) Low idle temperature ( average idle after boot): 36c Water warmed Average Idle ( idle 5 minutes after load test) 40c Water warmed High idle: (idle 5 minutes after load test) 42c Averaged max load under Prim95 Blend for 30 minutes: 71c Max load under Prime95 Blend for 30 minutes: 72c Systems specs: Asus P6T7 WS Supercomputer, Core I7 950 DO stepping, Mushkin DDR3 1333 9-9-9-24 1.50v, X2 EVGA GTX480, Coolermaster 1200Watt PSU, Cooler master HAF932 With Haf932 advanced Side panel with window and a Silverstone Air Penetrator 180mm fan. OCZ revo drive 50gb PCI SSD and a WD Blue 500Gb 32MB cache HDD. There is everything. Enjoy. Boinker. P.S. Stability is still A Work in Progress. Im shooting for 4.50 But its not exactly looking like that is obtainable. I get about 45 minutes in and get a prime95 error so Im close to stable. Enjoy Share this post Link to post Share on other sites More sharing options...
Rosco Posted January 17, 2012 Posted January 17, 2012 (edited) Wow OK I didn't realise I was that safe, thanks for the info guys. My qpi is nou set to 1.4 atm for the 4Ghz oc, I will remove my kingston sticks at some point and only run the ocz ones ans see where I can get it to. 6 ramsticks really make getting ran stable a real hassle but it seems that at 4Ghz all 6 sticks are coping very well. I will keep on posting my results as I continue to fine tune everyrhing. Edited January 17, 2012 by Rosco Share this post Link to post Share on other sites More sharing options...
d6bmg Posted January 17, 2012 Posted January 17, 2012 Thanks a lot for this Hey, are you trolling here? Share this post Link to post Share on other sites More sharing options...
wevsspot Posted January 17, 2012 Posted January 17, 2012 ....................................................Mushkin DDR3 1333 9-9-9-24 1.50v I think that's your secret Two things that get overlooked a lot in the heat equation of the i7 9X series of cpus, Hyperthreading and IMC temperature. As I increase memory frequency (and thereby IMC load) my load temps increase. Probably a double effect because QPI voltage has to increase too. Example, I'm running 12Gb of G.Skill DDR3 2000 9-9-9-24 1T. If I set the memory down around 1600Mhz and use a QPI voltage of approximately 1.30v my load temps are almost 4C lower than running the memory at DDR3 2000 with a QPI of 1.45v. I've never ran them at anything below 1560Mhz, but I bet as I got down closer to 1333Mhz and lowered QPI voltage my temps would continue to decrease. Nice loop by the way. I'm somewhat limited in mine because of my case (LianLi K62) my 240mm is up top and I only have two fans pushing (exhausting) up through the rad and outside the case, so in reality my beginning ambient temp for air across the cooling fins is whatever the inside case temp is. Share this post Link to post Share on other sites More sharing options...
Boinker Posted January 17, 2012 Posted January 17, 2012 I have noticed that. I have also notice that al ram is not created equally. The dominator gt 1866 I had way back would not allow the system to be stable at these clock speeds without 1.45v qpi and underclocked to 1600mhz. Right now the system is operating its ram around 1600 at 4.20ghz. Not sure exactly though. Ram spec 9-9-9-24 1N @ 1.65v Share this post Link to post Share on other sites More sharing options...
El_Capitan Posted January 17, 2012 Posted January 17, 2012 Here's what a 360 rad dedicated to just the CPU will do. Share this post Link to post Share on other sites More sharing options...
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