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Watermelon Daiquiri posted:does the flux through the ihs stay constant over its entire area if there are smaller, localized sources? or wouldn't the flux be higher above those areas? Flux is a compound used to cover a surface to prevent oxidation during welding/soldering etc. The die(s) itself should be soldered to the IHS, and the reason stated for including the other two dies is to distribute the weight on the IHS. So in theory, it should sit flat. edit: aw crap. Eyochigan fucked around with this message at 22:53 on Aug 8, 2017 |
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Aug 8, 2017 22:44
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Eyochigan posted:Flux is a compound used to cover a surface to prevent oxidation during welding/soldering etc. The die(s) itself should be soldered to the IHS, and the reason stated for including the other two dies is to distribute the weight on the IHS. So in theory, it should sit flat. I think they mean flux as in variation, in this case variation of temperature. EDIT: 
AVeryLargeRadish fucked around with this message at 22:54 on Aug 8, 2017 |
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Aug 8, 2017 22:50
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They mean heat flux, I think. EF Beaten like a kaby lake in a vice.
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Aug 8, 2017 22:51
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Yeah, flux as in amount of flow though a surface (integral) lol
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Aug 8, 2017 23:12
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I imagine the space between the two dies will be significantly warmer than the edges of the heat spreader. But the edges will still get quite warm, by the assumption that a heatsink will heat up and lose its ability to disperse some of that energy. Now I'm curious if you want full coverage of the IHS, or a smaller contact area to prevent transferring heat back into the IHS where it wasn't present before. I'd always assumed you want as much surface area as possible. edit: Has anyone touched their cpu cooler at full load? How hot was it? I've never burned myself personally.
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Aug 8, 2017 23:23
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Eyochigan posted:I imagine the space between the two dies will be significantly warmer than the edges of the heat spreader. But the edges will still get quite warm, by the assumption that a heatsink will heat up and lose its ability to disperse some of that energy. Well the IHS is going to reach thermal equilibrium so the more cooler contact area that can be provided the better the thermal dispersion will be.
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Aug 8, 2017 23:27
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Eyochigan posted:I imagine the space between the two dies will be significantly warmer than the edges of the heat spreader. But the edges will still get quite warm, by the assumption that a heatsink will heat up and lose its ability to disperse some of that energy. I've loaded my CPU up to 75deg C, and the air cooler was warm, that's it. Probably a good 10 deg C could go away if I delidded it, but if I was going to bother I'd want to go direct die, and that's not happening on air (so CBA).
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Aug 8, 2017 23:34
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ServeTheHome have started to post their EPYC benchmarks https://www.servethehome.com/dual-amd-epyc-7601-processor-performance-and-review-part-1/
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Aug 8, 2017 23:43
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GRINDCORE MEGGIDO posted:but if I was going to bother I'd want to go direct die, and that's not happening on air (so CBA). I was considering direct-die too but I don't think I'd risk it on a brand new cpu. But what's the risk factor on air. Too heavy? Athlon XP had those 4 foam pads to protect the die, I think people still managed to crush them, or maybe those were enthusiasts who shaved the pads off.. Or do you just mean water would be worth the effort at that point. Eyochigan fucked around with this message at 00:09 on Aug 9, 2017 |
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Aug 9, 2017 00:06
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Threadripper to 4GHz and 1.36V does like 60-62°C delta over ambient? Seems a lot? I suppose with a decent sample, it should work with less voltage and thus less heat generated?
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Aug 9, 2017 00:22
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Eyochigan posted:I was considering direct-die too but I don't think I'd risk it on a brand new cpu. But what's the risk factor on air. Too heavy? Athlon XP had those 4 foam pads to protect the die, I think people still managed to crush them, or maybe those were enthusiasts who shaved the pads off.. E - mine is currently intel Skylake, just chatting about direct die. Really I want a 1700 Ryzen, but I'll wait for a respin. Although I want it now particularly as Intel are not supporting 6c coffeelake on z170 / 270 for no good reason. I suppose the risk is if the cooler rocks, or when the cooler is first fitted it isn't evenly pressing down. With a shim, like the shim by aqua computers - I don't think it'd be that dangerous to do (I'd do it), but I think you get problems with the base of the air cooler being bigger then the socket, so it won't contact the die. I'm not sure if removing the mounting hardware on the socket would let it work? I'm not sure if it would affect the tension much or not. If it worked on air, I'd give it a go for sure. But I'm too lazy to remove the lid just to re add it back with better paste, although I probably should at some point. I'd rather leave it off if I could. Just because I like the fans off as much as possible with a mild overclock. GRINDCORE MEGGIDO fucked around with this message at 00:50 on Aug 9, 2017 |
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Aug 9, 2017 00:42
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Seems like someone got a threadripper early and is posting benchmarks https://www.reddit.com/r/Amd/comments/6sg03p/1950x_geekbench_3_results_41_ghz_all_cores/  Sounds like Threadripper is going to be amazing
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Aug 9, 2017 01:25
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Jesus I don't need 16 cores but I'll probably eventually get one because I'm a big dumb idiot.
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Aug 9, 2017 01:57
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MaxxBot posted:Jesus I don't need 16 cores but I'll probably eventually get one because I'm a big dumb idiot. 
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Aug 9, 2017 02:03
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MaxxBot posted:Jesus I don't need 16 cores but I'll probably eventually get one because I'm a big dumb idiot. This. I just built a 7700k box and I irrationally want a TR system instead. We should probably start a support group.
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Aug 9, 2017 02:07
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My overclocked i7-3770 non-K gets 41xx and 13xxx on Geekbench. Not that Threadripper isn't impressive - it totally is, but man the 3770 is almost 5 years old.
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Aug 9, 2017 02:09
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MaxxBot posted:Jesus I don't need 16 cores but I'll probably eventually get one because I'm a big dumb idiot.
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Aug 9, 2017 02:12
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Malloc Voidstar posted:wait for TR2, maybe amd will somehow get +50% IPC again Yeah I might hold out for TR2 not because I expect a huge IPC gain but out of (probably futile) hopes that Glofo's new process clocks significantly higher. If they just deliver their promised 10-15% IPC gain and the new process got the clocks higher it would be absolutely insane. MaxxBot fucked around with this message at 02:26 on Aug 9, 2017 |
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Aug 9, 2017 02:17
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Scarecow posted:Seems like someone got a threadripper early and is posting benchmarks quote:Doing some overclocking testing, thought I would share some results. At 4.0 GHz, the system is stable at 1.25 V, with all cores running CB 15, so this part looks very good.
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Aug 9, 2017 02:22
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Woaaah, holy poo poo, 1.25v for 4.0Ghz? Have they tried to push it to 4.2 yet? gently caress, if AMD releases a new stepping which can hit 4.5Ghz in 2018 I'm loving sold.
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Aug 9, 2017 04:21
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I'm waiting for that 4.4-4.5 GHz regular ryzen stepping myself.
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Aug 9, 2017 05:00
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Seamonster posted:I'm waiting for that 4.4-4.5 GHz regular ryzen stepping myself. The next stepping is the key part of that, but I'd still start at 4. On desktop anyway.
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Aug 9, 2017 05:17
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MaxxBot posted:Jesus I don't need 16 cores but I'll probably eventually get one because I'm a big dumb idiot. same, the temptation is strong even though I have no use for more than 6 or maybe 8 physical cores. fortunately for my wallet KVM/AMD is unable to fix that huge GPU passthrough performance issue so I'll probably end up with switching to Coffee Lake, particularly if the ECC support rumours turn out to be true. also 4.0 Ghz stable at 1.25V is insane
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Aug 9, 2017 06:46
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eames posted:same, the temptation is strong even though I have no use for more than 6 or maybe 8 physical cores. fortunately for my wallet KVM/AMD is unable to fix that huge GPU passthrough performance issue so I'll probably end up with switching to Coffee Lake, particularly if the ECC support rumours turn out to be true. Well there is a 8c x399 ment to be out at the end of the month so
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Aug 9, 2017 06:48
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MaxxBot posted:Jesus I don't need 16 cores but I'll probably eventually get one because I'm a big dumb idiot.
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Aug 9, 2017 07:37
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eames posted:same, the temptation is strong even though I have no use for more than 6 or maybe 8 physical cores. fortunately for my wallet KVM/AMD is unable to fix that huge GPU passthrough performance issue so I'll probably end up with switching to Coffee Lake, particularly if the ECC support rumours turn out to be true. When did they say they can't fix GPU passthrough using KVM?
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Aug 9, 2017 07:52
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FaustianQ posted:When did they say they can't fix GPU passthrough using KVM? Nobody said that, I should have chosen my words more carefully by saying "seems unable".  The ball is in KVM's court but AMD doesn't seem interested in helping and there's zero developer activity on this >6 year old bug. I'm not expecting it to get fixed anytime soon. Passing through graphics cards for high framerate applications (  ) is a very niche use case so I can't even blame them.https://bugzilla.kernel.org/show_bug.cgi?id=196409 https://community.amd.com/thread/215931
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Aug 9, 2017 07:57
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KVM needs to fix their broken poo poo and AMD is too busy doing actually important things (like developing and releasing CPU architectures that don't suck for the first time in nearly a decade) to fix their broken poo poo for them. At least the KVM people aren't being openly hostile to AMD about it like Torvalds vs. Nvidia.
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Aug 9, 2017 09:04
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You can use Xen and the performance is great, I've helped my best friend set it up on his Ryzen desktop. You have to patch the driver to fix the Code 43 "bug", and that's it.
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Aug 9, 2017 09:07
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Sinestro posted:You can use Xen and the performance is great, I've helped my best friend set it up on his Ryzen desktop. You have to patch the driver to fix the Code 43 "bug", and that's it. Oh, that's nice to know. Thanks for the link 
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Aug 9, 2017 13:11
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Take a look at this line in the PUBG patch notes:quote:Client Optimization
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Aug 9, 2017 14:12
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nerox posted:Take a look at this line in the PUBG patch notes: https://www.youtube.com/watch?v=Pxeaamdwty4 And all I can think is "Why is every Phanteks case so loving damned ugly?"
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Aug 9, 2017 15:10
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Measly Twerp posted:
I like my Enthoo (though why they have such dumb names idk). Also my daughter likes to request colors on the components. (Make the ship one red!)
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Aug 9, 2017 15:21
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nerox posted:Take a look at this line in the PUBG patch notes:
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Aug 9, 2017 15:23
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Any good videos or reads on how specifically game devs implement multicore support? Do they put netcode and physics on one core etc sort of like PhysX, or is it more about basic parallellization?
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Aug 9, 2017 16:19
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ufarn posted:Any good videos or reads on how specifically game devs implement multicore support? Do they put netcode and physics on one core etc sort of like PhysX, or is it more about basic parallellization? If you've got an hour to spare, the current state of the art is work-stealing algorithms and doing everything possible to minimize synchronization. https://www.youtube.com/watch?v=0nTDFLMLX9k
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Aug 9, 2017 16:22
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Some benches popped up of an R7 2700U APU up against the i5 7260U with Iris 640 graphics: https://gfxbench.com/compare.jsp?be...us+Graphics+640 Against the A12 9800E: https://gfxbench.com/compare.jsp?be...E+CORES+4C%2B8G And it looks like the GPU is clocked at 300MHz with 11CUs: https://gfxbench.com/device.jsp?benchmark=gfx40&os=Windows&api=gl&D=AMD+Ryzen+7+2700U+with+Radeon+Vega+Graphics&testgroup=info I'm getting thirsty Dr. Su.
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Aug 9, 2017 18:59
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I'm not. If Vega can't scale up and it doesn't scale down, what bleeping good is it over Fiji? poo poo had better be like, $99 compared to the i5's $309 or something.
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Aug 9, 2017 19:37
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Twerk from Home posted:If you've got an hour to spare, the current state of the art is work-stealing algorithms and doing everything possible to minimize synchronization. Game developers discover ancient multicore secrets
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Aug 9, 2017 19:46
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From the Sisoft leaks earlier in the year, we know the APUs will do at least 800MHz. That big Vega has a bunch of really weird bottlenecks (geometry and thermal limiting) gives me the inclination that it's designed for mobile or integrated solutions rather than full fat desktop ones. That's pure speculation, though and I wouldn't know how to confirm that. Even still, I'm just hoping for laptops that'll do 1080p 60-ish at medium settings with Freesync 2 panels. Even if it takes 95W or so to do, I'm pretty cool with that, especially if it has a desktop equivalent APU so I can get my friends back on PC gaming on that cheap cheap.
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Aug 9, 2017 20:04
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