Possible 5850 failure/overheat

dannyboyee82

dannyboyee82

dannyboyee82

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Alright everyone..

Cheers for looking at this thread. Over the past few days I've been getting black screen crashes randomly, there seems to be no general trend to them i.e not after a certain period of time and so on. I have checked my hard drives for errors, nothing there. I have checked the event log, there is no report of an error either.

The only thing that leads me to suspect the graphics card is overheating is that occasionally on boot it seems to put the fan on full, this is something that has only started happening recently.

Other than that, it could be the power supply I guess. I don't have a spare of either power supply or graphics card so I can't swap and test.

Does anybody have any idea what it could be, perhaps there is something that I have missed? Has anybody had any experience with the 5850 overheating before? It's got me stumped!
 
hello m8 could be any one of the 2, iw ould try anotrher psu 1st,im running a saphire 5850 on a 850w bequiet psu and runs fine what psu are you using
 
sorry never seen that psu there read it twice aswell need to lay of the smokes, hope you find a solution very expensive cards
 
Cheers for replying,

Using OCZ GameXStream 600w..

I don't have another PSU to test I'm afraid..

Just been checking around the internet for possible causes, one solution may be a BIOS update. I'll try that.
 
Mine will do that (or similar) iff I don't crank up the fan on my 4870 to at least 30% when gaming. Anything below and the card overheats and CCC crashes, or sometimes a complete system reboot. Have you been monitoring GPU temps whilst under stress?
 
i was in corsair their and done the test to see what psu you need you should do that think you will need a biger psu thats a hungry pc you have
 
This happens with my Sapphire 5850 also, fan sometimes goes to 100% on boot for no apparent reason, also experienced a blackscreen crash the other day also, and I put it down to a power issue as I had just added a fan,hard drive and light.

Im sure this wasn't an overheating problem although I was gaming it was Enemy Territory which is not graphics intensive at all.
 
The crashes happen to me when I'm just doing stuff on the internet, i.e I'll have a few browsers open and a media player.

It has actually never happened to me during a game or when under stress, maybe it isn't the graphics card.. I have just used MSI Afterburner and CPUID Hardware monitor to check temps, it is idling at 30-31C. Fairly safe temp I think.

It probably is the PSU, it's not powerful enough. But then, it's weird how it's only started doing it now.. I've had this rig for over a month now.
 
Thinking about it, I'm expecting a 600w PSU to power my 5850, motherboard, CPU (overclocked) + cooler, 3 hard drives, 5 case fans and all peripherals.. am I asking too much of it?!?!
 
in theory a good 600w psu should be fine, 5 series cards are more efficient than the 4 series. how old is the PSU? Obviously it could have just given up the ghost and stopped giving out its rated power.
 
Not even a year old. When I boot my system, it takes around 5-10 seconds before it hits POST.. is this a power issue? It seems to attempt to boot, fails, then tries again with a bit more power and succeeds.

When it boots to Windows, that's when the 5850 starts making itself known: fans are on full, again for around 5 seconds, after which it drops back to being inaudible.

I've checked temps, all are fine. I've reverted back to stock CPU and voltage settings. But still, there is this black screen crash. It doesn't happen very often either. Randomly it will crash, sometimes hours in, others only after a few minutes. I've never been doing anything particularly power hungry at the time either.

Anybody got any ideas? This is starting to annoy me now.. I hate buggy systems, I haven't had one in years.
 
you gone through all your settings and checked correct? (RAM setting might of gone crazy or something)

It would seem you are now going to enter the long tedious world of troubleshooting:

try running furmark and prime at the same time that'll stress your PSU if you crash pretty quickly on that i'd be looking PSU. Make sure you keep an eye on temps whilst doing this as well (gpu and cpu).

Also run memtest however faulty ram is normally a blue screen but always nice to rule it out.

Try building your rig on a cardboard box as oppose to in the case to eliminate the risk of short circuits. (optional but has been known to work from time to time)

The fact it's fine in game troubles me tho, plus the fact many people seem to be having issues with the 5850s could mean it's that. Got a spare gfx card to try in there instead?
 
you should go to corsairs website danny and do the test for the psu you require for your system i think you will need well over a 600w, i use an 850w and you have more stuff in yours.think thats defo the problem gl
 
Done some stress testing, using Furmark and P95.. no crashes and temps all ok (58C max for GPU, 48C Max CPU) for over half an hour.

Don't have a spare GPU to test I'm afraid, just sold my beloved 8800GTX!

I have been to the Corsair website, it is telling me I need a 650w PSU.. not that much more than mine and to be honest I'm not convinced that it is an accurate test anyway, it doesn't take in to account a lot of things.

I'll try the memtest next, and check all my settings. I know they're ok though, I have profiles saved in the BIOS for particular situations. Plus, I was getting crashes when both overclocked and at stock speeds, which means it is happening regardless of certain settings.

Dunno if I can be bothered to build it on a cardboard box to be honest.. I also have a cat, he likes to chew things, I don't want to blow both my rig and cat up!

It's really troubling me too, I don't get it. I guess it could just be some sort of problem with the 5850, I've noticed a few people are having similar issues with this card.

Cheers for your replies, nice to know someone cares!
 
yeah i wouldnt worry about the 5850 fan revving up. that seems to be a small glitch in the 9.10 drivers.

One thing that caused crashes for me was that my default ram timings set by the mobo were out of spec for my RAM.

CPU-Z will give let u know the rated speeds of the RAM. The value that was totally wrong for me was trfc which should have been 133 and default was something like 60.
 
Got the 9.11 drivers.. I'll see if that helps. Cheers for the heads up, I had only checked last week to see if they had released new ones. They are no longer in beta by the way.

Any ideas what my RAM timings should be at? What I find odd is (excuse me if this sounds totally stupid, but RAM is something I don't understand) that if I set my DRAM frequency to 1600Mhz in BIOS, the system messes up. I have to have it set at 1333Mhz to be stable. My RAM is DDR3 1600Mhz though. Is this normal?
 
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