800W PSU not CPU, though a CPU with an 800W TDP would be interesting to cool :p
On Wed, Dec 31, 2014 at 2:30 AM, Raffaele Fragapane < raffsxsil...@googlemail.com> wrote: > Splitting the outlet might or might not work out for you. > While it's touted as a feature a large majority of high output PSUs are > multirail because it's generally cheap to provide multiple stable lines > than one large pipe distributed arbitrarily over N cables. > > What that boils down to is that if you have an 800W CPU, but it's a > multirail with the 6pin on a 120W necked line (hard coupled), and you fork > it to two videocards for a 200W pull, you are going at the very least to > run a very hot PSU, and at the worst to set it on fire :p > > And if you think Dell or HP use premium components, especially for the > PSUs, think again, more often than not even their workstation grade > components have been, at one point or another, extremely subpar. > > You can always convert another rail if you have a multi rail. 6pins aren't > anything magic, they still run two or three sublines like anything else and > a molex on a spare rail should be convertible to 6pin. If you have a > quality single rail PSU, you should be able to safely split. > > On Tue, Dec 30, 2014 at 10:56 PM, Tim Leydecker <bauero...@gmx.de> wrote: > >> It´s good to write things like this, I guess. >> >> A minute later I found the HP part number: >> >> Hewlett Packard 6PIN TO DUAL-6PIN GRAPHICS ADAPTER >> F5J05AA >> >> This let´s you split a 6pin connection to 2x6pin. >> >> -- >> >> Similar adapters are available from 3rd party vendors. >> >> I can´t tell how well this would work when using "hot" nVidia 7xx range >> cards >> but the gt 970 cards are spec´d for needing roughly 150W, drawing around >> 180W in >> actual test scenarios. >> >> -- >> >> I´d guess that would allow a stable 2xGPU system (using a HP 1100+W PSU) >> but for a 3-4xGPU system, I´d actually revert my suggestion and go >> home/custom built. >> >> Cheers, >> >> tim >> >> >> >> >> Am 30.12.2014 um 12:04 schrieb Tim Leydecker: >> >> I was suggesting to also look into refurbished HP Z800/Z820/Z840 >> workstations >> as a basis for building a multi-GPU plattform. >> >> There is a grain of salt. >> >> Most if not all graphics cards come expecting an additional 2x6pin power >> supply, >> e.g. 75W from the PCIe slot, plus 75W from each 6pin connection, there are >> Quadro cards that are spec´ed for 150W power consumption but most >> gaming cards will excess that 150 W drain limit. >> >> You´d need at least 4 6pin connections for 2 gaming cards. >> >> The HP Z8++ series may present problems because of the way the PSU >> provides >> these 6 pin connections in a vendor specific cable kit. >> >> There are several cable kits available but I haven´t found a 4x6pin kit >> sofar. >> This could be a dissapointment for anyone looking into get such a >> plattform. >> >> Of course, there is a chance I missed something from the datasheets and >> spare parts >> listings, as well as a chance the HPZ840 doesn´t have such a limitation. >> >> Worth mentioning anyway. >> >> Cheers, >> >> tim >> Am 12.12.2014 um 12:14 schrieb Angus Davidson: >> >> Worthwhile noting that Octane works with the GTX 9XX cards very well. It >> also has a really good Network GPU support. Which means you dont need to >> cram 4 cards into one machine. If you dont know what you are doing the >> machine can go *Poof* very easily. >> >> >> >> >> ------------------------------ >> *From:* Tim Leydecker [bauero...@gmx.de] >> *Sent:* 12 December 2014 12:42 PM >> *To:* softimage@listproc.autodesk.com >> *Subject:* Re: Best graphic card for Softimage? >> >> Hi, >> >> >> I would also like to recommend a nvidia gtx 9xx card, the available cards >> (970&980) have a lower power consumption compared to a 7xx series card. >> >> Aside from that, I would like to point out nvidia CUDA support, which >> might >> help in a couple of programs, be it redshift or 3d coat or the latest >> nvidia games >> related tools (fluids, cloth, physics, etc for Maya). >> >> If you have to invest now, e.g. immediately, I´d suggest a 970 4GB card >> and >> downloading a redshift demo to see if it would benefit your workflow. >> >> If you can wait a bit longer, I´d suggest waiting for a successor to the >> 780ti or >> Titan (Black) nvidia cards, expected early next year, mostly because of >> the >> more RAM expected to come with these cards, which would give you more >> headroom for heavy scene handling (e.g. shitloads geometry and >> raytracing). >> >> There is a lot of new stuff coming early next year, including Houdini and >> Nuke >> versions more accessible due to licensing changes/options. >> >> In general, I would split my money between system RAM, ssd and graphics >> unit, >> expecting to work happy with a 128-256GB system OS partition, 64GB ish >> RAM, >> and a gt(x) 9xx ish card with at least 4GB VRAM (6-8GB prefered). >> >> Making sure that your system has a 800+ Watts PSU will help stability. >> >> >From there, finding redshift attractive, you could always add another >> card to >> your system, devoting it to getting more out of a single render license >> or even >> go fully committed and swap your mainboard to a 4x16PCIe version, adding >> even more cards. >> >> This implies a tower workstation case and enjoying building your hardware. >> >> Alternatively, I can recommend looking into refurbished HP Z800/820 or >> Dell T7500/7600 >> workstations (on ebay) to get an idea about prices, performance and >> extension options. >> >> These plattforms are well enough documented to find a solid, not to loud >> machine >> that will reliable work 24/7 with a reasonably sized PSU and at least a >> 2x16PCIe >> graphics option. >> >> There´s caveats with maximum system RAM or the PSU in some of those >> refurbished machines >> but they tend to be solid machines, well designed. >> >> If all of the above is too much information for you: >> >> Get a gt 970 card. They are the best bang for the buck nvidia´s atm. >> >> >> Cheers, >> >> >> tim >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> Am 12.12.2014 00:09, schrieb Tim Crowson: >> >> I have a 970 for my home system and it's fantastic. >> >> -Tim >> >> >> On 12/11/2014 3:34 PM, David Rivera wrote: >> >> GTX 9XX it´s the way to go, packed with another $600 on Redshift. >> Thanks. :) >> >> *David Rivera* >> *3D Compositor/Animator* >> LinkedIN <http://ec.linkedin.com/in/3dcinetv> >> Behance <https://www.behance.net/3dcinetv> >> VFX Reel <https://vimeo.com/70551635> >> >> ------------------------------ >> *From:* Mirko Jankovic <mirkoj.anima...@gmail.com> >> <mirkoj.anima...@gmail.com> >> *To:* "softimage@listproc.autodesk.com" <softimage@listproc.autodesk.com> >> <softimage@listproc.autodesk.com> <softimage@listproc.autodesk.com> >> *Sent:* Thursday, December 11, 2014 2:32 PM >> *Subject:* Re: Best graphic card for Softimage? >> >> "How long can you can your computer on with this card in it?" >> >> Sry but clarification please? >> >> On Thu, Dec 11, 2014 at 2:28 PM, <hk-v...@iscs-i.com> wrote: >> >> How long can you can your computer on with this card in it? >> On 2014-12-11 05:36, Mario Reitbauer wrote: >> >> Got the msi gtx 970 gaming 4g. >> Quite happy with it. >> >> 2014-12-11 10:03 GMT+01:00 Mirko Jankovic <mirkoj.anima...@gmail.com>: >> >> right now 970 is best bang for backs. >> they do not heat too much, power consumption is prety low and they do >> really good job. >> and on top of that Redshift as perfect companion ;) >> viewport performance is not that big issue at all between two cards but >> being able to utilise GPU rendering with CUDA is way more higher on the >> list then couple more FPS in viewport >> >> On Thu, Dec 11, 2014 at 9:26 AM, Christoph Muetze <c...@glarestudios.de> >> wrote: >> >> I'd stay clear of the ATI/AMD consumer cards if I were you. From our >> experience Soft becomes generally less stable (crashing a lot more), and >> the raycast selection is going haywire sometimes. >> >> Chris >> >> On 11/12/14 04:44, phil harbath wrote: >> > I went Redshift and have been very pleased. I can get by using a lot >> less computers than before on most projects, volume smoke is pretty much >> all I use MR for anymore. I have several computers with a combination of >> 780TI, 770, and 970, while I think the 780Ti give the best performance, it >> really makes more sense to buy the 970 as they are priced better or 980 if >> you have more cash. The Redshift say go with the cards with the most ram >> (that would be Titan 6tb, if you got even more cash), depends on your needs >> of course. >> > >> > From: David Rivera >> > Sent: Wednesday, December 10, 2014 8:51 PM >> > To: Softimage Mailing List >> > Subject: Best graphic card for Softimage? >> > >> > I know this subject has been posted a lot over the years, but it >> happens that I read a benchmark performance between autodesk products on >> certain webpage. They tested Radeons vs Nvidias and turns out that Mudbox >> and Softimage ran better on AMD (Radeons) - this is mental ray render. >> > >> > >> > So I was wondering whether to go full on mental ray (CPU) or take my >> savings and put it on a GPU renderer? Either case, now a days, which is the >> middle ranked graphic card for softimage? (My budget is around 1k). >> > >> > >> > Thanks. >> > >> > David Rivera >> > 3D Compositor/Animator >> > LinkedIN >> > Behance >> > VFX Reel >> > >> >> >> >> >> >> >> >> >> -- >> >> >> >> >> This communication is intended for the addressee only. It is >> confidential. If you have received this communication in error, please >> notify us immediately and destroy the original message. You may not copy or >> disseminate this communication without the permission of the University. >> Only authorised signatories are competent to enter into agreements on behalf >> of the University and recipients are thus advised that the content of this >> message may not be legally binding on the University and may contain the >> personal views and opinions of the author, which are not necessarily the >> views and opinions of The University of the Witwatersrand, Johannesburg. All >> agreements between the University and outsiders are subject to South African >> Law unless the University agrees in writing to the contrary. >> >> >> >> > > > -- > Our users will know fear and cower before our software! Ship it! Ship it > and let them flee like the dogs they are! > -- Our users will know fear and cower before our software! Ship it! Ship it and let them flee like the dogs they are!
