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7850 Load dropping? (basically pooping on me)

D

duncandun

Limp Gawd
Joined
Sep 13, 2005
Messages
171
So I've had this card for a few months now, I jumped from a 4830 to a 7850 which wasn't as impressive as I thought it would be(have a phenom ii x4 955 BE OC'd to 3.8ghz atm, its not THAT bad is it?).

Regardless, I've been having some issues with it and I'm not sure what the cause is:

Drivers randomly crashing(maybe just an amd thing? sometimes I'll wake up in the morning and check my computer and the desktop will be black indicative of a crash overnight)

Issues running a dual monitor setup(ones my 40 inch HDTV and the other is my 27 inch monitor, both 1080p not exactly demanding monsters) ie driver crashing like above and other issues.

And also occasionally DROPPING LOADs during gaming. Such as in Dayz it constantly will drop from 70%(which seems to be what it maxes at in arma2) to 5% which isn't alot of fun, and I'm not sure what causes it to recover (but it does, normally after 10-30 seconds).

I thought it might be my PSU, but it's not a huge load of shit. It's a antec eco power 500 watt, not amazing but it's decent and relatively well reviewed. Voltage monitors pin it at 11.6-12.1, which isn't great but then again it's software voltage monitors so I'm not sure.

It's also not over heating, seems to top out around 44C.

I'm not overclocking it, it's an asus if it matters.

Any ideas? Should I just RMA it(if it's still covered, I received it second hand)?

Also, performance has been less than stellar in general and I'm guessing thats related. For instance running 20-30 FPS(which feels more like 15 in that game) in the aforementioned DayZ, or only getting 30 FPS in Crysis 3 on medium-low settings. I was running 13.1 but just installed 13.3 and will see if its any different.
 
Is the computer off when you get the black screen? That's usually a sign of loss of power. So is throttling when under extreme temps. Sounds like the PSU. A 7950 system can pull 400 watts and you're using an OC Phenom.
 
Fooshnik said:
Is the computer off when you get the black screen? That's usually a sign of loss of power. So is throttling when under extreme temps. Sounds like the PSU.
Click to expand...

Yeah, thats the thing. It's not throttling clock speeds, it's just going from 100% load to 5 or 10% load seemingly at random. Generally the computer is in sleep mode when the black screen occurs, It has woken up just to crash before or atleast it's woken me up once and I was able to see it happen.


edit: I thought the way these cards throttle due to power issues was by lowering clock or memory speeds, is that not true?
 
I just wanna say that in my 10 years of being here the Title of your thread made me laugh out loud. Ya my sense of humor is twisted.
 
Fooshnik said:
I read this as 7950, a 7850 system will probably pull about 350 watts, but your symptoms still sound like the PSU.
Click to expand...

Whats the easiest way to go about testing this? buy a baller psu from bestbuy, test it and return it?
 
duncandun said:
Whats the easiest way to go about testing this? buy a baller psu from bestbuy, test it and return it?
Click to expand...

If best-buy were to have baller quality PSU's id say yes, but they don't. They pretty much exclusively stock junk.
 
Fooshnik said:
I read this as 7950, a 7850 system will probably pull about 350 watts, but your symptoms still sound like the PSU.
Click to expand...

Damn, wish my old earthwatts 380 had the correct PCI-E power connectors:( that thing was like a damn rock, most stable voltages. Also pulled 400w not 380.
 
I doubt it is the power supply, I had the same issue with a 7950 I had. Tried all sorts of drivers and ended up replacing the card and it went away. The screen would go black over night and I would have to reset the machine to get it back, and it would randomly have low usage in games. I bought it locally so I just returned it after two days, the replacement was fine.
 
LigTasm said:
I doubt it is the power supply, I had the same issue with a 7950 I had. Tried all sorts of drivers and ended up replacing the card and it went away. The screen would go black over night and I would have to reset the machine to get it back, and it would randomly have low usage in games. I bought it locally so I just returned it after two days, the replacement was fine.
Click to expand...

Weird! I guess i'll try the power supply just to be sure and then see about RMAing it!
 
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