Loading...
> >

How to Build a quad-GPU rig for monster Iray performance (and animating)

1235»

Comments

  • Daz Jack TomalinDaz Jack Tomalin Posts: 13,813

    Deadly Buda said:

    TGSNT said:

    you would need a special outlet and heavier duty wiring put in by an electrician for 220v direct to the circuit box, kind of similar to how they have special outlets for electric dryers. 

    Hey thanks for the input. This is going to be a lot of dedication to get IRAY render times down. Lol. 

    Spoiler alert.. it's never enough lol

  • CracraftcaCracraftca Posts: 0

    Deadly Buda said:

    Hello Philosopher! How would this build be modified to run 4x liquid cooled rtx 3090s?

    Well, i would have to say that you are going to need at least 2 psu's to power those things, most i believe are 3x8 pin. if they indeed can hit 300+ watts per card, you will want to  have a good amount of radiator space and a large chassis. The one that Philospher is using just in my opinion is a little short of cooling capacity even for his hardware. The reason I say that, I have 3 780ti's on water in one of my rigs and with two 480mm radiators with one being in push pull configuration, my temps were just way too high for my liking. but my radiators are also fairly thin as I needed to make sure i could still fit my hard drives.

    if you are looking for sound advice, i would recommend a chassis such as thermal take core w200 or w400 dont quote me on the w400 i haven't looked a TT cases in awhile. you could also look at the corsair obsidian 900D if you do not need front usb c ports, or you can go with its even bigger goliath of a brother the 1000D. The 900 will support 2x480 top and lower side  / 2x240 one in front and one on opposit side of said 480 / and either a 1x120 or 1x140 for the rear. or 2x420 top and lower side with a 240 in front and opposite side of a 420 and again either a 120 or 140 in the rear. Excellent cooling options very large case.

    the 1000D supports if i recall 4x480 two front and two on top. with the option i believe of either 2x120 in rear or 2x140 in rear. ( I haven't built in the chassis yet myself.) you can also run a full atx and a mini itx system in the chassis and have two systems in one!

    rule of thumb is really 120mm per component and another 120 for overclocking. i would recommend 4 480mm radiators if i was to build with 4x3090. as i think the rule of thumb went out the window when cards started hitting higher running wattages.

     

    I currently run two 8gb 2080 supers on air with my 10920x 12c/24th with 64gb at 3200mhz with a 4.7 oc on the chip and gpu's running stock speeds. i currently have a scene rendering and cpu never goes over 70c and one out of two of my gpu's has been a little toasty running at 65-85c  Since daz does not care for ocd gpu's i would recommend lowering base clocks by 100-150mhz for higher stability when renderering larger more complex scenes.  You will also want to check your render settings and make sure you have just the gpu's checked. Do not run them in nvlink, you can have the bridge/bridges connected but make sure you disable the sli function for daz in nvidia control panel, and you should be good to go.

     

Sign In or Register to comment.