8x GTX 980, but only 7 is wokring

[ingar195]

need to see pictures of this

Hardware?

[ingar195]

Why the fuck does it matter?  Interrogating him doesn't really solve his issue.

 

 

So all the cards work individually OP?  (In that the issue is that only 7 of any 8 cards work at once?)

 

The motherboard has 8x PCI-E 3.0x16 slots and 2x PCI-E 3.0 x8 slots.  Might be worth swapping between them and seeing if that fixes it.

 

Anyway what I would recommend is downloading display driver uninstaller with all 8 cards installed and doing a quick reinstall of the drivers.  Maybe something went wrong.

 

40 PCI-E lanes should be enough so I don't think it's that.  Could be a faulty riser if you're using one of those.

Thanks, ill try that when i arrive at work, is there a upper limit in window for this? because we got all the card in ubuntu up and running ?

[ingar195]

It's getting late (02.22) her in norway, so I will post some pictures two morrow(today) and the results offcourse

[sgloux3470]

Thanks, ill try that when i arrive at work, is there a upper limit in window for this? because we got all the card in ubuntu up and running ?

 

I dunno.  Seems like the sort of thing that would be limited on the driver level.  But 7 would be a weird number to limit it to.  And you did say it seemed to work at first before updating drivers.  

 

 

I asked him questions and explained some things... why be a tosser about it? I'm just making a point that this makes 0 sense for any industrial application.

 

 

You made half a dozen posts asking why he's using 980's.

 

It doesn't fucking matter why he's doing it. If you're curious just ask once and stop challenging his decision to use them every step of the way.  It's obnoxious and rude and doesn't help him at all.

[dragoon20005]

i will say start with 2 or 3 GPU plugged in and start the PC

 

then verify using GPU-Z ID or Device manager and see if the system detects the 3 GPUs

 

then add more cards in until the 8th GPUs

 

if all goes well they should be running by themselves

 

otherwise i will suggest running all the 8 GPUs off one PSU instead of split power and see what will happen

[kameshss]

PICTURES and FULL SPECS!!!! 

[AStateOfTrance]

How hard is it to take a picture and upload it lol

[SilentDecode]

On 3/20/2015 at 1:23 AM, ingar195 said:

Hey

I'm building a rack mountable dual xenon E5-2690 (12cores@2.6-3.5GHz), with 8x GTX 980 and dual redundant 1200w psu's, and all of this is fitting inside a slightly modded 4.5u cabinet.

 

This is not a sli configuration, all card are "standalone".

 

So after i got this up and running, i on the first boot all gpu's where up and running in device manager, i didn't test the outputs, so im' not sure if all the card have ever worked at the same time. But after the first reboot (for the driver), only 7 out of 8 cards worked... I have tested the card's, so i know that all of them is wokring, bt im not able to get them all wokring at the same time.

 

Any suggestions?

 

 

Seriously? Xenon?
Xenon is a type of light..

 

You mean: Xeon

[vanished]

5 minutes ago, SilentDecode said:

 

Seriously? Xenon?
Xenon is a type of light..

 

You mean: Xeon

clear!

[PlayStation 2]

mfw someone revives a dead thread 

[David_K]

Saw the title was sure Linus has setup a dummy account to ask noob questions about the setup he got, seems thats not the case lol. 

[MMKing]

1. Checking PCi-E lanes.

Mobo = 8 * 16x PCI-E = Check

CPUs = 40 lanes per CPU, for a total of 80 = check

 

2. Reading product page.

'' (Both CPUs need to be installed for full access to PCI-E slots and onboard controllers. See manual block diagram for details.) ''

Are you sure you installed the graphics cards, as Supermicro intended?

 

3. Does the 8th GPU even function, in a single GPU setup?

 

4. Check the power draw, the system may struggle powering the 8th GPU. Which is not unrealistic, especially if one of the PSUs is indeed faulty.

 

Lastly, contact customer support and make it abundantly clear that you have in fact bought 8 980s and two 12 core xeons. Customer with money are generally treated better, especially if you display some level of technical expertise.