Damn premature sends! If you go molex to 6pin make sure it's with a dual molex adapter, while good PSUs can deliver a lot more on them, standard molex spec is 40W, while 6pin is 75W.
On Wed, Dec 31, 2014 at 2:42 AM, Raffaele Fragapane < raffsxsil...@googlemail.com> wrote: > 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! > -- Our users will know fear and cower before our software! Ship it! Ship it and let them flee like the dogs they are!
