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On 2017-01-26 00:59, Paul wrote:
B00ze wrote: On 2017-01-25 05:15, Paul wrote: Your curve seems to have a longer rise time than mine, almost as if the cooler is being "overwhelmed". It's a "bug" in SpeedFan - I tried again and this time I added the CPU Cores to the graph: They shoot-up to 88C immediately, while the line for "CPU" slowly slowly slowly rises. [snip] They barely get hot to the touch tho, which I find strange - on my laptop the exhaust vent becomes really hot immediately when I run Prime95, not so on the Noctua cooler in my rig, it just becomes warm'ish - I mean it's higher than room temp, but I can leave my hand there forever and never feel the need to remove it because it's too hot... You could try a more powerful fan on the cooler. Yeah, I thought of that too - the Hyper EVO has a much faster fan, but I don't know, Noctua fans are supposed to be good. Oh well, I guess I will live with it. The only thing that worries me is whether I have bent the CPU's PCB or not - if not bent then fine, it's how it is. And if I did bend it, well I'm not buying another one, lol, so I will just accept that it gets hot under Prime95. The other issue with these designs, is "no cowling". Mine doesn't have one either. A cowling on the heatsink, would ensure that any static pressure the fan can develop, goes through the fins. Since I own a 37.5mm thick fan, if I had to attempt a retrofit, I'd do a sheet metal cowling, plus fit the 37.5mm thick fan. That's to get as much air velocity as possible through the fins. I've only done one cowling/shroud for a CPU cooler here, in the time I've worked on computers. Air cooling goes asymptotic over about 800LFM (linear feet per minute). Run of the mill electronics, might use around 200LFM. So there is a point, where "mo fan" does "no good". Regards, There's probably a couple ways the pipe wouldn't get hot. Likely leaving no choice but to take it apart and verify things. Yeah but for now I'm happy with it, I'm not likely to do anything close to Prime95 in normal use. I agree that the silicon die on your processor, is probably pretty tiny. (All that FINFET goodness.) Which puts an extra responsibility on the sole plate of your Noctua. If you had one of those coolers where the bare pipes touched the processor, then a couple of the pipes might be carrying all the heat. Yours has a sole plate, so that gives a bit of spreading. The newer processors have a thicker lid, which was added for spreading angle too. 6700K - de-lid https://hardforum.com/threads/6700k-...sults.1878870/ That guy hits 87C with a water cooler, so my hitting 92C (max) on air is ok, even tho he reaches 1.4V to my 1.360V maximum. On Large FFTs @ 1.344v I hover around 67C which is fine. He dropped 20C with the de-lid, amazing. Btw, I fixed the Watts reading not working by reEnabling SVID; HWMonitor says I pull 135W @ 1.360V when I hit 92C (nowhere near the 177W that guy is burning). Technique demonstrated on a 3770K https://forums.anandtech.com/threads...-tims.2285595/ The first one, shows the motherboard measurement tool showing 177W when a bit more than your voltage is applied. 177W that is crazy; I can never reach that, my cooler setup would never work. The second article, shows just how thick the IHS is getting on these processors. It's there to get spreading angle and make the thermal footprint larger on the lid surface. DeLid is just too much trouble, even if it is extremely efficient. For best results, the heatsink should be oriented such that it had the feet of the pipes going across the thin dimension. If just one pipe runs along the die, that would give poor cooler response. I think that's how it is for me... In this picture, you could compare the three screws of the normal socket mounting hardware, to the orientation of your setup. I would guess they don't arbitrarily rotate the die, between 3770K and 6700K :-) But who knows. http://i272.photobucket.com/albums/j...0kinsocket.jpg Yup, that's how it is on my MB as well. My CPU would be a bit different, as the die is square on mine. And the lid is soldered down. I believe at the time, that was part of my buying decision (4930K or 5930K). Too bad I was such an idiot on motherboard selection, and am now limited by a gutless VCore. http://i.imgur.com/ZnOF6xh.jpg Paul -- ! _\|/_ Sylvain / ! (o o) Member ![]() oO-( )-Oo If there is no God, who pops up the next kleenex? |
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