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PCIe Confusion

SaschaRossier
Level 7
Heyya Folkz
My first Post ... so first of all: Hello everybody and im really happy to own a RE4 😉

And heres my first question ... i searched the forum already but i just dont seem to get it right.
I got two GTX 690 and a GTX 760 as well as an Adaptec Raid Controller and a firewire Adapter - (PCIe x1)
(I work with OctaneRender that uses CUDAs to render ... this is why I have dual 960. And the 760 is
my actual Graphics-Board where my Monitor is connected)

My Setup looks like this:

Slot 1: GTX 690
Slot 2: GTX 760
Slot 3: GTX 690
Slot 4: Firewire Adapter
Slot 5: Adaptec Raid Controller

Is that areasonable setup or am i doing something wrong?

Thanx 4 the Help
Greetings from Switzerland
Sascha
i7 3930k @ 4.5 gHz on a RIVE, cooled by a Corsair H100i • Case is an open testbench • 8x8GB G.Skill RipjawsZ CL 10 • 2xGTX 690 and a GTX 760 • Sysdisc: Samsung 256GB SSD • Cache-Disc: Intel x25 SSD • Storage: 8TB SATA Raid on a Adaptec 5805 • PSU: Enermax Revolution 85+ 950W
5,441 Views
8 REPLIES 8

Jobeo
Level 7
what is your CPU? Everything has to share the total number of lanes... with so many cards you some will be restricted since it has to divide up the lanes
Rampage IV Extreme
3930k C2 stepping intel cpu
Gskill 32gb kit F3-17000CL9Q2-32GBZH
GTX 760
GTX 560ti
Areca 1882 Raid Controller
Crucial m4 SSDs 256gb two disk raid 0
Enermax 1350w maxrevo PSU
Cosmos 2 case

SaschaRossier
Level 7
Im running a i7 3930K. Right now im installing W7 and i haven^t plugged in all the Cards yet ... i just wanted to make sure, i dont miss anything important 😉
i7 3930k @ 4.5 gHz on a RIVE, cooled by a Corsair H100i • Case is an open testbench • 8x8GB G.Skill RipjawsZ CL 10 • 2xGTX 690 and a GTX 760 • Sysdisc: Samsung 256GB SSD • Cache-Disc: Intel x25 SSD • Storage: 8TB SATA Raid on a Adaptec 5805 • PSU: Enermax Revolution 85+ 950W

Arne_Saknussemm
Level 40
Well, the manual is a good place to look at this or the BIOS of the RIVE has a PCIe lane simulator to tell you at what speed the lanes will be in different combinations....

Image

Both your 690s wont be running X16 at the moment with all those things occupying the other lanes. If you want/need top bandwidth/speed you will need to leave out some things. Run 690s in first and third red slots and another device in the black slot 2B. Outputting the desktop is no work for the GPU so getting the first 690 to do that won't affect rendering performance.

HiVizMan
Level 40
I do not think that the PhysiX card is needed at all in my view. Just ascribe a single core of the two 690 cards as your dedicated physics if you want.
To help us help you - please provide as much information about your system and the problem as possible.

neyuru
Level 10
I recommend using this settings:

Slot 1: GTX 760
Slot 2: GTX 690
Slot 3: fattest one of Firewire or adaptec
Slot 4: GTX 690
Slot 5: slimest one of firewire or adaptec

The reasons are these:
First, if you have several GPU's (as in my setup... I also have a GT640 for Physics), it displays to the monitor with the first populated slot. So, if your display monitor is pluged to the 760, then it wont show POST progress... Windows should be fine though. In this scenario your setup would display at windows startup, but miss the BIOS startup.
Second, ideally the 690's need room between them for cooling as the intake fan are on the "botton" side, not in the rear.
Third, place the slimest card of all at the fourth slot as there are conectors (not essential, but reccomended as your audio, lights, power for your case) that are next to the fourth slot. Using a 690 e.g. is impossible in this slot with these connectors in place.

cheers!

[/HR]
Rampage IV Extreme BIOS 4206
Intel I7-3820
32 GB Quad Channel Kingston Hyper X Genesis
2 x Nvidia GTX 690
2 x WD Velociraptor 250 GB RAID0
Intel 120GB 320 SSD
Noctua NH-D14 SE2011
CM Silent Pro Hybrid - 1300W
CM HAFx

Lurkios
Level 7
Personally I'd drop the 760, it's just going to complicate things unnecessarily. There won't be any performance gain keeping it around.

Thanx 4 the Help guys!
Space is not an issue in my setup cause i have that kind of "james bond goldfinger nuclear bomb design" in a machine room (see pictures)

24403
24404
24405

so i keep my gpus up in the air for cooling and connect them via extensions.
And the GTX 760 hold another 1000 Cuda Cores and since my Octane render scales Renderpower with
every Cuda it can get a hold of ... this 760 is another significant 11% Render Speed increase ... thats why i
just dont wanna drop it if i dont have to 😉

After installing Basic Win7 i got all the Cards working but two new issues:
1. My RAID on the Adaptec 5805 Controller shows really poor performance ... around 25% of the read an write speeds i had on my previous setup ... (the 8x PCIe Lane is unlikely to be the bottleneck innit?)
2. I get serious onscreen stuttering when im just surfin with Firefox or even in Fluidmark i get like 40 fps max (maybe still something wrong the way i set up the three gpu-cards)

hm ... ill keep testin ... if ya have an idea, please fire 😉
i7 3930k @ 4.5 gHz on a RIVE, cooled by a Corsair H100i • Case is an open testbench • 8x8GB G.Skill RipjawsZ CL 10 • 2xGTX 690 and a GTX 760 • Sysdisc: Samsung 256GB SSD • Cache-Disc: Intel x25 SSD • Storage: 8TB SATA Raid on a Adaptec 5805 • PSU: Enermax Revolution 85+ 950W

Did you connect the EZ_PLUG_1 6-pin connector for adequate power to the cards?

[/HR]
Rampage IV Extreme BIOS 4206
Intel I7-3820
32 GB Quad Channel Kingston Hyper X Genesis
2 x Nvidia GTX 690
2 x WD Velociraptor 250 GB RAID0
Intel 120GB 320 SSD
Noctua NH-D14 SE2011
CM Silent Pro Hybrid - 1300W
CM HAFx