GTX 770 SLi Temps WAAAY Too High!

Recently I built a new computer:
Silverstone Sugo SG10B Case
Intel Core i5 4670k
Gigabyte GA-Z87MX-D3H
Cooler Master V8 CPU Cooler
Corsair TX 850W PSU
Gigabyte Windforce GTX 770 X 2

I just got the two cards in the mail today and installed them, and the top one is running incredibly hot. Like 90+ degrees on Furmark. Now, the case is small, and kind of tight, but it has a ton of airflow, especially in the graphics card area.

Now I have tried everything, changing the cards around, messing with the spacing, reversing fans, changing fan placements, turning up the fans to max, and still nothing. I have all the fan slots populated with pretty decent fans and even when I turn the fans all the way up, including maxing out the fans on the GPUs themselves, it still hits the low 90s.

Now my question is, is this a side effect of the small case? Is it the fact that there isn't a full slot of space between them? Are these cards bad for SLi, or are they defective? I really have no idea, I have tried everything I can think of and I am really upset. Any help at all would be greatly appreciated. Thank you in advance.
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  1. Furmark really does push your cards to the limit, you are best to play a game and monitor the temps in game. The cards can operate safely at those temps , they are designed to handle it, but its not great to run them that hot all the time.
    Use MSI Afterburner and adjust the fan curve/speed to lower the temps as much as possible.
    The minimal slot space does impact on the cards temps, and also having aftermarket cards the heat of the cards are blown into the case and onto each other. For smaller cases the reference cards are usually the best option. If the problem persists and you are allowed to return them , the reference cards would be the better choice for your set up as they exhaust the hot air out of the case and not onto each other.
  2. Best answer
    Do you mean that the card on top is getting hot even after switching them around? Or that one particular card is hot?

    If its the top card regardless of what you do, its not getting enough air too cool down.

    If its one particular card overheating, RMA it.

    edit: you might also wana check the voltage each card is receiving. Too much volts will make any card run hot, and it will slowly cook to death. Also undo any overclocking.
  3. Furmark usually burns your card. Try benchmark some games, play it for awhile, if it is below around 81C and below, you're good to go.
  4. Another thing you can do is make the side case fans exhaust instead of intake by swapping them around in reverse. It will help to remove the hot air the cards are blowing and reduce your temps better.
  5. Hey guys, thank you for all the quick responses.

    So to start with, I did try benchmarking in games a little, but quickly gave up when the alarm I had set for 90C went off after less than 5 minutes in Crysis 3.

    Also, here's something strange. I had card A in on the top at first. It got to 90 in about 3 minutes and the bottom one stayed at around 73. When I switched them they both were about the same temp, but both went over 80.

    And I also tried switching the fans on the sides to exhaust and the one on the top to exhaust (in shifts of course), and neither one made too much difference.

    I guess what I don't get is how a 450W cooler can't keep these stock cards under 90 in SLi even with the fans at a constant 100%! I just don't know what's wrong and it's really heartbreaking.
  6. Your V8 cools the processor, not the graphics cards. And I don't think it uses 450w

    Did you check the voltage of both card?
  7. huilun02 said:
    Your V8 cools the processor, not the graphics cards. And I don't think it uses 450w

    Did you check the voltage of both card?

    Right, and I called it a CPU cooler in the original question. Also, the Windforce cooler sells itself as a "450W Cooling Solution" meaning it can theoretically dissipate 450w worth of heat.
    And yeah, the voltages are both at stock.
  8. I got an idea. Have your setup run without the case. If the cards still too hot, RMA them. If not, get a new case.
  9. You could even try it without the side panel and leave it open, I know its not the most appealing option.
  10. Man... I don't know what could be wrong with them but it has to be the cards. I just ran it with no panels on it, the sugo is pretty much bare without the left, right, and top panel and with a house fan right next to it. Wouldn't you know it? 90 degrees in about 5 minutes. I guess I'm going to have to RMA them, thank you for all the help guys.
  11. Not to add salt to your wound, but Gigabyte kinda sucks lately with their graphics cards. Notice they slap the same boring Windforce cooler onto every card, goes to show how lazy they are. Considering they also sell a lot of other products including motherboards, it would affect how much attention they can give to any particular product line.

    On the other hand, a manufacturer like EVGA makes Nvidia cards almost exclusively. So they would take more care in making a good product and providing good after sales service.
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