OTOY Forums

Yesterday I finally got my new Workstation.
Case is the Corsair 750D, Mainboard MSI X99S Power AC, i7-5930K, 32 GB RAM, 2 x GTX Titan, 1 x GTX Titan Z.

I just did a few quick tests for 20 min but I alreay get higher temperatures than with my old PC.
I think the Titan Z is ok with 82 °C. But the two Titan's already reaching 86/87 °C after 15 minutes before I had 80 °C max with these.

• Are these temps still ok? I mean, the cards are designed to get hot but I don't know what happens in a 4 hour render session...

• If not, what can I do? Get better case fans? Remove the middle card (I really don't want this)? Adjust fan speeds with MSI Afterburner?

• Sell the two Titan's and get another Z?

Hi,
My Titan is not going beyond 80-81 with 780 next to it. I have tried to adjust fan speed of Titan and Fixed %85, it's loudy but cool down around 65C. it has very effective fan if you do not care about the noise.

sadece wrote:My Titan is not going beyond 80-81 with 780 next to it

That's what confuses me. Before I had very small case with only one case-fan and did not go beyond 80°C on two Titan's...
I think one problem is that the middle card is pulling in the hot air from the backplate of the Z.
Should I change the order? Put the Z on top and others below?

I have a similar setup like you.
Although my case is alot bigger has room to breathe That is cosmos II.

I put a fan behind the GPUs it's feeding them air. Coming from front of the case.

The setup is 20cm fan front case blowing inside.
And a 12 cm fan blowing air to the back of the cards Where they get air from.

Your PSU is very near the lowest card that would cause heat to stay there.

My temps are at load..
680 at top stays at 70 degrees.
Titan in the middle is 80-82
Titan at the bottom is around 65.

By the way I use MSI afterburner software that enables fan speed according to cards temp.
And it ramps up the fans to their max speed.

I also believe the top fans help to get the heat out of the case.
Since my h100i has currently 2 fans only, I'm planning to add 2 more on top of the case to increase air pull..

But i strongly guess that if you use afterburner like software to override fan speed.
You'll see much improvement.

I actually do not think that using fans at maximum will degrade cards life.
Even it does reduce the cards life. Every year a new card is release so. it would be forcing me to upgrade the card if it's burned

Thanks for your input!
I think I will buy an extra fan to place it in front of the cards like you have and maybe one extra for the top...
Any recommandations?

oguzbir wrote:Your PSU is very near the lowest card that would cause heat to stay there.

I don't know, the Z stays at 82°C with constant clock speed...

PSU impact is negligible. Right - get more fans at the top and if possible near cards. But temps below 90C are fine on air. Or... go with water

Hi Rob,

Looks like the cosmos might have better options for installing fans and create good airflow,
or you do not have the maximum possible fans yet:?

I would suggest fans, fans, fans,... bottom and front as much as possible for in.
and do you have fans on the side panel close to the GPU for in?
....and as much as possible fans in back and top for out.

Where and how many fans do you have right now and which can you improve and where can you add?

cheers,

Right now I've got two 140mm at the front and one 140mm at the top, where is space for another one.
I also could add one 120mm at the bottom just behind the PSU, but I don't know if it fits...

I think I can't place any fans in front of the GPU's; there's no mounting for that. Or can I buy something to mount it there?

• Can I set different fanspeed curves for different GPU's with MSI Afterburner? Somehow it always applies the curve to every card...

Another option, if not water-cooling, is to have a machine shop (or Dremel­­ yourself) cut a hole (or holes) in the side panel. I think a 200mm mounted right beside GPUs would help.

RobSteady wrote:

• Are these temps still ok? I mean, the cards are designed to get hot but I don't know what happens in a 4 hour render session...

temps are ok, it's nothing bad, but if You want to get them lower simply increase airflow.

RobSteady wrote:

• .. what can I do? Get better case fans? Remove the middle card (I really don't want this)? Adjust fan speeds with MSI Afterburner?

1. Replace these two fans infront (use one one of them in the roof) with something stronger.

2. a) take out HDD mounting mechanism between drive cage with HDDs & power supply
b) add a fan there, but apply magnetic dust filter from the bottom.
(this will give airflow that would push some hot air emitted from TitanZ to the top of the case,
now Your Titans sip heated in)

3. last but not least - If You don't use that cage where optic drives should go - move Your storage there & have all four fans (two 140mm in front & two in the bottom 120mm) In this case You would have so much fresh air & positive preasure that Your heat would not have a chance to accumulate inside.

However if You don't tweak Your software cards are going to overclock themself & keep temperature around 80-82 anyway =) I think that's set out of the box (as part of boost 2 technology)

RobSteady wrote:

• Sell the two Titan's and get another Z?

don't do this! don't even think - get fans & move hard drives if You can =)

FrankPooleFloating wrote:Another option, if not water-cooling, is to have a machine shop (or Dremel­­ yourself) cut a hole (or holes) in the side panel. I think a 200mm mounted right beside GPUs would help.

RobSteady wrote: I think I can't place any fans in front of the GPU's; there's no mounting for that. Or can I buy something to mount it there?

no need for any of those either, first use all of available mounting space (2x in front + 2x in a bottom - don't forget dust filter them =)