GPU fan max at boot, no video, HD6850

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No_Gain

Honorable
Aug 7, 2013
4
0
10,510
Hi,

I got:


  • Radeon HD 6850 (Sapphire) Graphic Card

    Asus p5kpl-am se MOBO

    a quad core intel cpu

    4gb ram

    ubuntu/win7, both 64bits, separate hdds

    acbel API4FS06 PSU (550 Watt)

On win7↓

It has worked good for a year, I've brute forced some hashes, max detail games... I've seen at least 75°C, there was no problem, I've overclocked a bit, it was ok.

After that, without overclocking, I've started to see some tearing(?) (persistent horizontal tiny bars -gone on reboot-) and windows driver recovery errors. A few days ago, when I clicked an icon to start a game, its fan maxed out and screen went black, no bsod. I've taked out most of the pc's parts cleaned a bit, put them together again, It worked for a little, played a few levels, then same thing happended.

I've tried to boot the pc via ubuntu too, no luck, so I am thinking It shouldn't be a driver issue.

It might be the PSU, I've checked voltages and it was ok on no load/disconnected graphic card.

Now I am posting this via on board gpu, on ubuntu. [strike]Havent tried win7 with on board gpu yet.[/strike] Win7 runs fine with on board gpu too.

Anybody got a clue of whats going on? What to do? I don't have another pc to test it.
 
Solution
mauller07
it could be the pcie 6x 12v line that has gone on the power supply.

when the 6850 is in the machine is there no video output from it at all and does the pc post (audible single beep)?
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N

No_Gain

Honorable
Aug 7, 2013
4
0
10,510


I've check pcie 6x12v line with multimeter, top three reports 12v.

No beeps, I [strike]think[/strike] my mobo's buzzer/speaker is not connected, there are 4 pins on mobo, and "buzzer" and "speaker" words around them. Back 3,5mm is connected but can modo send send the beeps to back 3,5mm jack?

edit: I am connecting the speaker and testing again now.

let me chcek if I can connect the buzzer.

but I think it does post, I can see some hdd light flicking and hear the spin up sounds, but I might be wrong about that.
 
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mauller07

mauller07

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Mar 28, 2010
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yeah it could be outputting the voltage but not the current needed.

still check and see if the pc posts with the card in, if it does then its most likely the card that has gone, if not then its probably the psu since the pc will not post if the gpu is not receiving full power.
 
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No_Gain

Honorable
Aug 7, 2013
4
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10,510


connected the speaker,
bios posted, heard the one beep, and hdd led gone crazy, as it does with normal boot.

I was thinking about if the onboard gpu and pcie card conflicts, since both are connected, and onboard gpu is enabled, but I've seleceted PEG/IGD, so I think this can't be the isssue. pcie would take the priority if it was alive.

now live, hd6580 is connected and its fan is going crazy (100% maybe), no output on dvi, pc is connect to monitor via vga/onboard gpu, I am writing this.

So we've discarded the option of malfunctioning psu, since pcie card is connected and runing/fanning :p too, I should probably post it to warranty than...

and thank you mauller07 ^_^

edit: spelling..

edit2: I won't mark this solved w/o any more posts solving for at least 24 hours. there might be others know the problem here.
 
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No_Gain

Honorable
Aug 7, 2013
4
0
10,510
SOLVED

I don't know what solved, so I'll list here what I did:


  • Cleaned the pins of pcie power adapter

    Changed pcie power adapter's source socket

    Inserted gfx card into online pc accidentally and pressed restart button immediately

edit: looks like I can't pick my own post as soluiton, so I'll pick mauller07's.
 
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