GPU Running Hot

[Razrhood]

Hello all,

 

I have two Gtx 1080s in SLI and they're both being watercooled. I just went through a case swap, went from the Evolv ATX to the PC-011 WGX and I am having worse temps, even though I am adding a second 360mm radiator. Before I would hit 45C while gaming and now I am hitting 60C one one card and 38C on my second card. I have a 1080 SC and a 1080 FE (with a acx cooler) and I am running the SC as my primary. Prior to the swap the SC card would run at it's 1700mhz clock speed and the other at 1600mhz. However, now the one that's supposed to be running at 1600, is running at 1900 with a voltage of 1000, while the SC card is running at 1700 with voltage of 800. 

 

1080 SC - http://prntscr.com/iosdr0

1080 - http://prntscr.com/iosdyr

 

Just at idle the mV is at 925, while the other is at 800. I've defaulted many times and nothing happens. I am having to underclock the gpu but even that is doing nothing to the temps. I thought maybe SLI was disabled, but it's running.

 

 

My loop goes Res>Pump>360mm rad>Bottom gpu>top gpu>cpu>360mm rad>240mm rad>res My fans are spinning at around 1800 rpm. I have 8 EK vardar fans. When I swapped them over I flushed them with distilled water and even took them apart and cleaned them. I reapplied thermal paste and tossed on new thermal pads.

 

I am super sorry for my bad english, I am intoxicated

 

Thanks

[Psittac]

it is running at a higher speed now? That's confusing.

 

random thought, maybe the thermal paste was a bad application.

 

another random thought, reinstall your OC software?

 

Interested in what others have to say.

 

Also your English is fine and hooray for beer!

[henkka_scorpio]

1. Maybe your pump isnt powerful enough as you added another radiator? what pump are you using?

[Domifi]

5 minutes ago, henkka_scorpio said:

1. Maybe your pump isnt powerful enough as you added another radiator? what pump are you using?

The pump can't be the problem as the cards are in serial and only one is behaving strangely.

And yeah, my bet would be a bad thermal paste application. Just do that card again

[Razrhood]

Gawd damn it. I hate taking it apart. I had a feeling it was going to come to this. For what it's worth, I am running an EK DDC pump. Motherboard says it's running at 4500 rpms.

[Razrhood]

You think it can wait though? I mean 60C under load isn't terrible right? While I was on air I would hit 70-75C under load. The only change I have made to the entire system is that I added an Aquacomputer Aquaero 5 and splitting the fans to it.

[Mick Naughty]

Prolly air trapped. Can’t hit higher temps unless there’s a flow issue or air in there. Assuming you put it back together right. 

 

With my 4 1080’s the only one that hits 60c is the one on air. The sc and fe card run around 47 and the pny at 40. 

 

Got a pic of the setup?

[Psittac]

13 hours ago, Mick Naughty said:

Prolly air trapped. Can’t hit higher temps unless there’s a flow issue or air in there. Assuming you put it back together right. 

 

With my 4 1080’s the only one that hits 60c is the one on air. The sc and fe card run around 47 and the pny at 40. 

 

Got a pic of the setup?

trapped air makes sense