Problems with new SLI setup...

[Pharazon001]

So i just built a new system.

 

It's a Ryzen 3700x on an X570 Aorus Pro motherboard. 16gb 3600 DDR4. 850w PSU.

 

I got ahold of two identical Gigabyte 2070 Super graphics card (exact models are Windforce OC 3x 8G) and an Aorus NV Link Bridge with the intention of running them in SLI. Since i do rendering it's really useful to have the 2 cards as i can just use 1 of them when i want to use the main card for something else.

 

I plug them in an everything seems to work fine. Both cards are detected and i'm able to enable SLI and use both cards in conjunction fine. The problem that i have is that i have absolutely no control of the fans on the card in the 8x slot. When the fans are supposed to be off they are running at a slow speed which isn't too bad. But when the temp on the card increases and the fans need to turn on they are immediately pinned to 100% and the only way to get them down from this speed it to completely power off the computer. Not even a restart will reset them. All this happens and the fan speed always detects as 0RMP in everything. (i've used the Aorus Engine, HW Moniros, SpeedFan, MSI after burner, etc - it's all the same problem). It's almost like the motherboard doesn't detect this sensor.

 

I've updated the motherboard bios to the latest version, graphics cards say no update is available. Both cards work fine on their own and both work fine in the x16 PCIe slot, but as soon as they go into this x8 slot i have this problem. 

Anyone have any ideas? Is there anything that i'm missing out on doing?

 

The power supply is 850w which i guess might be low for a SLI build, but then if this was an issue i would have thought i'd have other issues other than the fan speed not detecting. I've put both card's maxxed out doing a render at 100% and they have both worked fine apart from this fan issue.

 

Anyway, any help or ideas would be great

[Robchil]

what is your disk setup? 

[KingTdiGGiTTy]

If you're planning on doing mostly rendering, it would be best for you to not use SLI, and games most likely won't leverage he extra GPU anyway. 

I don't know if that will fix your issue, but SLI usually causes a loud of bugs.

[Robchil]

if you swap the gpu's around you still have problem with the card in the same slot? 

[Pharazon001]

1 hour ago, Robchil said:

what is your disk setup? 

 

the boot drive is a 500gb Samsung 970 Evo M.2

 

Also have 1 500gb Kingston SSD as a games drive and 2 x 2tb Seagate Sata Drives running on RAID 0

[Pharazon001]

14 minutes ago, KingTdiGGiTTy said:

If you're planning on doing mostly rendering, it would be best for you to not use SLI, and games most likely won't leverage he extra GPU anyway. 

I don't know if that will fix your issue, but SLI usually causes a loud of bugs.

 

Yeah, i've tried it with the SLI disabled. Also tried with the bridge removed completely and it made no difference.

 

2 minutes ago, Robchil said:

if you swap the gpu's around you still have problem with the card in the same slot? 

 

Yeah same problem with the card in slot 2 no matter which card it is.

[Robchil]

nvme uses pc-lanes and can sometimes cause problems with SLI as they are shared with the gpu.  are the raid using sata port 5 or 6? .. and what m2 port are the nvme in?  in bios try to disable any nvme/pcie disk settings except for the one you are using. 

 

My SLI setup runs 8x-8x and nvme raid 0 on 4x-2x .. but since gpu's are watercooled, i have never seen a fan issue. 

But SLI failed when running disks in 4x-4x, there was an overspeed setting for 2nd nvme port i had to disable. 

 

and m2 ports are linked to sata ports 5 and 6 on my asus board atleast.  this is why i ask.. 

 

 

[schwellmo92]

Does the fan speed and sensors detect in HwInfo?

[Pharazon001]

Just now, schwellmo92 said:

Does the fan speed and sensors detect in HwInfo?

no, it always show 0 RPM no matter what speed it's running at. 

 

It's running low (basically silent) until it need to ramp up and then it's like instant 100%. Also any manually changing of the fan speed in MSI afterburner or Aorus Engine results in the same 100% fan change. But no matter what i do to it, it's always detecting at 0 RPM.

[Pharazon001]

5 minutes ago, Robchil said:

nvme uses pc-lanes and can sometimes cause problems with SLI as they are shared with the gpu.  are the raid using sata port 5 or 6? .. and what m2 port are the nvme in?  in bios try to disable any nvme/pcie disk settings except for the one you are using. 

 

My SLI setup runs 8x-8x and nvme raid 0 on 4x-2x .. but since gpu's are watercooled, i have never seen a fan issue. 

But SLI failed when running disks in 4x-4x, there was an overspeed setting for 2nd nvme port i had to disable. 

 

and m2 ports are linked to sata ports 5 and 6 on my asus board atleast.  this is why i ask.. 

 

 

 

The m.2 is in socket A on the board and the drives are in sata ports 0, 4 and 2. As for the raid setup, i did i through the windows software and not on the motherboard (kinda didn't really know what i was doing with that) - not sure if that makes any difference.

 

You think i should try disconnecting the sata drives and try it with just the m.2 boot drive?

[Robchil]

disable any m2 setting excpet for socket A too, don't hurt to try atleast, since it sounds like a mainboard issue. i assume the sensor reads fanspeed and temp when not in second pcie slot 

[Pharazon001]

1 minute ago, Robchil said:

disable any m2 setting excpet for socket A too, don't hurt to try atleast, since it sounds like a mainboard issue. i assume the sensor reads fanspeed and temp when not in second pcie slot 

 

yeah, in slot 1 everything is fine on both cards. when it's in slot 2 it reads everything else. i can see temp, voltages, clock speed etc. it's just the fan rpm that doesn't detect.

[Robchil]

in rgb fusion, do you see only one card now and can change rgb for both card there, or both, and can only set inteligent in the first one? 

[Pharazon001]

2 minutes ago, Robchil said:

in rgb fusion, do you see only one card now and can change rgb for both card there, or both, and can only set inteligent in the first one? 

the cards don't have any RGB on them, but they do both appear in the RGB fusion application.

[Robchil]

until last windows/rgbfusion/aorus engine update i only saw 1 GPU in rgbfusion, and could change rgb on both cards there, now. second card is visible as a gfx card, the first card shows model, i don't have fans on my gigabyte/aorus 2080ti cards, so i never experienced your problem, but it sounds it can be something in last windows 1903 update that crashed with gigabyte software and drivers. hard to tell realy, seems we are all betatesters for gigabyte.... 

 

in Aorus engine, what does the gpu's show as there? . i get one model nr and the second only says card 2, this have changed too, it's quite useless for overclocking and have to do that in msi afterburner. 

[Pharazon001]

1 minute ago, Robchil said:

until last windows/rgbfusion/aorus engine update i only saw 1 GPU in rgbfusion, and could change rgb on both cards there, now. second card is visible as a gfx card, the first card shows model, i don't have fans on my gigabyte/aorus 2080ti cards, so i never experienced your problem, but it sounds it can be something in last windows 1903 update that crashed with gigabyte software and drivers. hard to tell realy, seems we are all betatesters for gigabyte.... 

 

in Aorus engine, what does the gpu's show as there? . i get one model nr and the second only says card 2, this have changed too, it's quite useless for overclocking and have to do that in msi afterburner. 

 

in the Aorus engine it really depends, sometimes it shoes the model, other times just "card 2"...

 

this is what's so damn odd about it. everything works on it but this fan rpm business

[Robchil]

tried to uninstall rgb fusion and aorus engine, and just ajust fans in msi afterburner yet? 

 

[Pharazon001]

41 minutes ago, Robchil said:

tried to uninstall rgb fusion and aorus engine, and just ajust fans in msi afterburner yet? 

 

not yet, but i guess that's one of the next things to do... not too sure how much difference it would make since the fan speed isn't even detected in HWMonitor, and i can't imagine Aorus engine would interfere with that...

 

as an update i just tried pulling out the Sata cables and this made no difference.

i can't see anywhere in the motherboard where i can disable unsed m.2 slots.

 

i also just tried 1 single card in the 8x slot on it's own and had the same problem with the RPM not showing. At least i know it's not a lack of wattage in the power supply now.

 

tomorrow i'll try my old EVGA 970 in the slot to see what happens when i do this...

 

i'm starting to think it might be a fault on the motherboard?

[KingTdiGGiTTy]

It sounds like a PCIe lane distribution problem. I would try putting NVMe drives in different slots to see if it changes anything. On a gigabyte X470 board, and putting the NVMe drive in a different slot fixed the issue. Though the drive might've been running at 2x instead of 4x 

[Pharazon001]

okay, i tried putting the NVMe drive in the 2nd m.2 slot and this made no difference - it still didn't detect the RPM of the fan.

 

I took my old EVGA 970 out of my previous PC and tried it in the 2nd PCIe port and the fan RPM's detected absolutely fine and i was able to control them with Aorus Engine, MSI Afterburner etc, so it's not a sensor problem / fault on the motherboard.

 

i'm at a loss now as to what i can do to get this figured out.