Dears,
So when i tried to overclock my CPU to 4.4GHz or 4.2GHz my graphic card (AMD HD 7950) wont start or crash (what i get is black screen like the pc is not connected to the monitor), so i disconnected the power from the graphic card, then connected HDMI directly to the motherboard's HDMI port, then started the pc and it worked. after that i have removed the overclocking from the setting and reconnected the graphic card (AMD HD 7950) and it worked like charm!
From the setting of AMD Catalyst (AMD Overdrive) i have noticed that if i increase the power limit it will cause the graphic card to crash. on the other-hand if i increases the GPU clock setting the graphic card will work perfect.
Guys, am i facing power issue ?
Components:
Motherboard - ASROCK Z87 EXTREME3 -LGA1150 Intel Z87 Chipset DDR3 Quad CrossFireX Quad SLI SATA3 USB3.0 ATX Motherboard
CPU - Intel Core i5-4670K Quad-Core Desktop Processor 3.4 GHZ 6 MB Cache - BX80646I54670
Graphic Card - Sapphire Radeon Vapor-X HD 7950 OC with Boost 3 GB DDR5 DL-DVI-I/SL-DVI-D/HDMI/DP PCI-Express Graphics Card 11196-09-40G
2 x Sata 7200 RPM
1 x SSD
2 x 4GB Ram
Power supply - RAW POWER 600 WATT - FEATURES:
ATX Version 2.31, suports dual 12V Rail
600 Watt moduler power supply unit for system with high configration
Energy saving design with high efficiency more than 82%
OCP, OLP, OPP, OVP, SCP, UVP Protection
Intel I3, I5 and I7, AMD. & also supports Dual Core CPU
Super silent 12cm sleeve bearing thermally controlled fan
20+4 pins (Nylon sheeve), P4+P4 (Nylon sheeve)
3PATA (Nylon sheeve), 1FDD, 4SATA (Nylon sheeve)
2PCI - E (6+6+2) (Nylon sheeve)
100% High temperature burn, 100% HI-POT tested
Active Power Factor Correction (PFC)