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Fps drops and driver crash with a Nvidia GTX 780

Last response: in Graphics & Displays
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April 3, 2014 6:09:20 AM

Hi, I just registered to this forum because I have a problem with my new Asus gtx 780 dcu2 (bought one week ago). Currently the pc is new and I only have 3 games, Assetto Corsa, Tomb Raider (2013) and Payday 2, but I am having problems with all 3 games.
With Assetto Corsa in the middle of the game, randomly the video driver crashes and windows says it was recovered successfully, error id 14. With Tomb Raider also when I am playing the game closes itself and doesn't give any error. With Payday 2 instead I have 2 issues that happen randomly and can happen all in one game session, 1) the game blocks for 1-2 sec and I have an fps drop but shortly after the frames go back up as normal, 2) the screen goes black and then goes back on and I can continue to play or the screen goes black and the driver crashes like with Assetto Corsa.
I tried downgrading the nvidia driver from 335.23 to 331.82 but I have the same problems, also I did a memtest for 1 hour and didn't found any error, and did an OCCT gpu test and I could replicate the fps drop I have on Payday 2, here are the graphs generated by OCCT in 3 tests.



Also did another test using gpu-z while playing Payday 2, and I found that every time I have an fps drop resulting in a lag of about 1 sec the 12v goes down to -2.50 v. I don't know if it's a bug with gpu-z or actually my psu isn't delivering constant 12v. Here is a screenshot of gpu-z shortly after I had an fps drop where you can see in the graph of the 12v that it went down to -2.50 v. I also don't think that -376.500 v is correct in the VDDC so maybe is the program that has a bug. I can upload the log if it is needed.



This is my rig:

PSU: XFX Pro Series 650W
CPU: Intel i7-4770
RAM: DDR3 Corsair Vengeance Blue Low Profile CML8GX3M2A1600C9B 1600MHz 8GB (2x4GB) CL9
GPU: Asus GTX780-DC2OC-3GD5
SSD: Samsung 840 EVO 120 GB
Motherboard: AsRock Fatal1ty H87 Performance
HDD: Western Digital Caviar Blue 1tb

I have never done OC and all the games are installed on the HDD. The temps while gaming are CPU 45-50°C and GPU 60-65°C. Also I tried the games with and without v-sync and the problems persist. Can someone help me solve these problems? I have them since the first day I bought the gtx 780 and still don't understand if it's a software problem or hardware. Thanks to anyone who can help
a c 126 ) Power supply
a b Î Nvidia
April 3, 2014 6:18:25 PM

Do you have the latest BIOS and mobo drivers? and the latest GPU drivers?
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April 4, 2014 2:29:04 AM

Tradesman1 said:
Do you have the latest BIOS and mobo drivers? and the latest GPU drivers?


Yes all drivers are updated, and I also tried downgrading the gpu drivers to an older version (331.82) but the problems persist.
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a c 126 ) Power supply
a b Î Nvidia
April 4, 2014 8:18:30 AM

Often, PSU may fall in, but yours should be plenty, might see if you could borrow another one to test with
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April 5, 2014 2:14:30 AM

I'm having Completely the same problem, same PC parts only for The PSU, mine is 860w PSU.

Really looking for solutions.
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April 5, 2014 8:24:55 AM

I managed to solve all the problems, switched the card to another PCI-e slot and now it is working perfectly, unfortunately I only have 1 PCI-e 3.0 slot so now the card is working at 2.0. Now my question is, is there something to set in the bios if I use the 3.0 slot, or the slot is damaged? Cause I would RMA the mobo but if the shop where I bought it from doesn't find anything wrong they would make me pay a fee so I would like to be sure that the mobo is damaged before sending it back.
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