Topic Title: Possible graphics card problem
Topic Summary:
Created On: 01/27/2014 08:06 AM
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 01/27/2014 08:06 AM
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Joined: 01/27/2014

Graphics Card

Sapphire HD7850 2gb

no oc done on it

AMD Catalyst Driver Version, and Driver History


Operating System

Windows 7  64 bit

Issue Details

So the problem goes like this, during games and only games the computer freezes (not responding to key pushing or anything) monitors go black then i get the " no signal" message. If i use the restart button the pc will not post i will get a 5 beep post error, if i disconect the power from the pc plug it back and power it on it will work normaly. Event viewer shows nothing but the unexpected shutdown notification.

Motherboard or System Make & Model

Asrock 970 xtreme 3 (first model not the 2.0)

Power Supply

Corsair RM750 watt , bought 2 months ago, the issue was happening on 2 other psu's

Display Device(s) and Connection(s) Used

Samsung Syncmaster S23b550 connected via hdmi cable

Dell 1908fpc connected via vga connection to the gpu's dvi connection using an adaptor

Applications and Games

only games from port royale 3 to blackflag (in terms of graphics)

CPU Details

Phenom II x4 965 be @ 3400 , 1.35v

not overclocked, cool n quaiet deactivated , stock cooler

Motherboard BIOS Version

asrock 1.8 (was preaviosly 1.4 but i flashed it) issue happens with both bios versions

System Memory Type & Amount

Corsair Veangeance cl9 (high profile ones) @1600mhz 2x4gb in dual chanel

Additional Hardware

2x 200mm fans connected directly to psu

1x230mm fan connected to psu

1x140mm fan connected to psu

The fans are from the Haf x case i'm using if it's of any usefullness

sound card connected to pci slot (creative soundblaster x fi fatality platinum)

Additional Details

Now the strange starts, so i cant reproduce the black screen with any kind of benchmarking software, but i will list the benchmarks and tests done already:

Memtest: ram ok 10 passes no error

Prime95 : blend and small fft for about 6 hours each no errors no warnings temps fine

Furmark , 3dmark , unigine heaven, no error no bsod no blackscreen on any of them.

occt cpu test/gpu test/psu stressing test  all ok

To be honest i have no idea if it actualy is the gpu , others have been bouncing the idea of a MOBO malfunction, so please some advice or fixes.

Thank you in advance!


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