8 replies to this topic

[T4ng10r]

Hi,
I'm facing hardware issues. My hardware is
GPU: ASUS GF GTX770 2048MB 256bit
MB: MSI B85-G43 Intel B85 LGA 1150
PSU: Thermaltake Smart 550W,
Win7 64b
Nvidia drivers 320.18.

During the game, after 5-10 min my computer shutdowns and do not respond. I need to unplug power, wait some time and only then I can start it again.
GPU-z dump logs with sensors readouts and moment before crash that are:
GPU Temp 78; VRM Temp 88; Fan speed (85%/2910).

Similar problem I faced when I played in "Crysis I" which could suggest that CryEngine 3 could introduce this problem. Lowering details to medium and resolution to 1680x.... didn't help.
In meantime I played "Bioshock Infinity" and "Syndicate" - both in res 1680x and max possible details, in the same environmental conditions (outside temperature) - all works like a charm.
Can you help me find root cause of those problems?

[JonSauer]

Your power supply is not providing enough power... Upon heavy load your system will crash because it simply cant provide enough watts to your components to all run. It also looks as though you're running a bit hot on your video card.... I'd make sure your heatsink is clear of dust and getting proper air circulation. Once a newer video card reaches 80 degrees, you're risking crashes depending on the quality of components. *** The power supply minimum requirements for your card is a 600watt power supply.... Although it says your card uses 300w, you're only leaving 250w max for the rest of your pc

Edited by JonSauer, 07 July 2013 - 10:28 AM.

[T4ng10r]

According to GPU-z TPD before crash is about 80%. If I read correctly - GTX 770 shouldn't take more then 230 W. 80W from CPU I5-4670 and the rest of system how much could it take? Nevertheless - on line power calculators suggest that whole system shouldn't take more then 400W.
You suggest that 550W in my PSU isn't enough?

[Oderint dum Metuant]

On the 12V rail of that PSU it can only put out 504W, whilst enough power may well be the problem here when you take off the GPU at a maximum load of approx 300W http://www.asus.com/...#specifications

You leave 204W, plus the small amount the 5V puts out.

Also 78D GPU temp on a 770 is 2 degrees shy of its thermal throttling point...that's not good.

[T4ng10r]

OK, to finish this post. How powerful PSU should I use to fulfill GPU/CPU requirements? 650W? 750W?
Secondly - yes, temp is strange. This is brand new GPU (more then week old) so I didn't expect any problems. I know that outside temp is about 25-30 deg C, but its shouldn't impact GPU temp so much.
But on the other hand - Bioshock didn't have this problems. Currently I can't take temp logs from its gameplay.

[Narcissistic Martyr]

Your GPU temperature is normal for a reference GTX770 so the problem is most likely your power supply in my opinion.

Looking at your power supply, it can only provide 42A on a single rail. A GTX770 requires 42A on the 12V rail (or so I've read) so once you add the rest of your components your PSU may not have the umph to run everything so it has to pull more current that it is rated for which makes it run hot and eventually shut down due to overheating. I'd suggest a more powerful PSU (600W minimum, but more importantly one with 50-60A on a single 12V rail) if you can afford one or possibly undervolting/underclocking your GPU until you no longer have crashing issues.

*Edit* Noticed that your GPU is not a reference GPU in which case the temperature is likely due to an overheating PSU

Edited by Narcissistic Martyr, 07 July 2013 - 11:33 AM.

[Vxheous]

Get a bigger PSU, make sure you're not using the 320.18 drivers (use the 320.49, or the new 326.01). Personally, I modded the 314.22 driver inf file to recognize my GTX 770, and I get the best performance out of it. You might also need to look at your case air flow. My GTX 770 hits 60*C playing MWO, and that's with my GPU fans going at ~65% speed. This is also with overclocking as well, my boost clock goes to 1250, so for you to hit 78 degrees is way too high.

Edited by Vxheous, 07 July 2013 - 09:36 PM.

[Tarl Cabot]

All the above, so until it can be resolved another way, lets consider a few things.

1. Are you playing in Full Screen or Full Windowed/Windowed mode? Switch to Full Windowed mode
In Full Screen mode the only hard cap on FPS is what your system/video card is able to run, with the GPU max out at 100%. That 100% means not only an increase in the heat output but also the power being drawn. Also consider that your fans are running almost at max simply to cool the card, no telling how the heat/power draw is affecting the rest of the system until it does lock up.

2. Clean out all dust bunnies (never hurts, and most do not do it regularly enough).

3. Depending on the other games other than Crysis 1, they may not be maxing out the GPU but the only way to see is to use a program to monitor the actual usage.

Example. i5 3570 3.4ghz OC 4.2ghz, ATI HD 7950 3gigs
Full Screen, GPU almost constantly maxed out at 100%, heat sensors show running around 65*C, FPS 100 to 175 FPS.

Windowed/Full Windowed mode, GPU 35%, heat sensors around 45*C, FPS max at 60 FPS and steady.

Edited by Tarl Cabot, 08 July 2013 - 07:46 AM.

[Chillicon]

@Tangior: is the problem solved? I have similar Problems with a similar system setup - my psu --> 650w. msi770gtx, 16gb ram, amd8350, win7 64bit
if you solved it - how did u do this?