- Jan 20, 2016
- 5
- 0
- 4,510
I'm just going to paste this from what I posted on reddit at https://www.reddit.com/r/buildapc/comments/41xfoy/troubleshooting_computer_randomly_stopped_booting/
I originally had a gtx770, but I picked up this new 980 early in December and it worked great. I used the computer for about a month while on break from school and then moved it back to my apartment and opened it up to clean it. In doing so I took the CPU cooler off because it was covered in dust. I threw everything back together and again it worked fine. After about a week back at school, I went home one weekend to see my parents, when I came back the computer would turn on (fans would spin lights would turn on) but I got no display. The graphics card lights up and the fans spin for half a second from time to time (I've heard they don't spin unless they reach a certain temp, but I'm not sure if that is true) The motherboard threw the dr.debug codes "4f 99 a2 d6"
https://www.youtube.com/watch?v=SEMn6EVaibQ
I've tried moving the card to other slots. Moving the memory to different slots or using one stick. I do get the correct code if there is no ram installed. Stupidly I thought it was a mobo dying issue because that's what someone told someone else for receiving the same type of codes. So I went and bought the exact same mobo, but two years newer and I'm still getting the same codes.
All my homework, games, video editing is all on this computer. I need it for school. If anyone can help me that would be much appreciated.
From what I understand I can't try using just vga from my mobo to monitor to get a display because my cpu doesn't support IGP. I've tried HDMI, DVI still nothing shows up.
My PC Specs:
OS - WIndows 7 64bit
CPU - Intel Core i5-2550K Sandy Bridge Quad-Core 3.4GHz (3.8GHz Turbo Boost) LGA 1155 95W BX80623i52550K Desktop Processor Without IGP
CPU FAN - Enermax ETS-T40-BK Black 120mm Twister CPU Cooler with TB Apollish Blue LED PWM Fan
MOBO - ASRock Z77 Extreme4 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with BIOS version 2.90
PSU - CORSAIR Enthusiast Series TX750 V2 750W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power Supply
GPU - EVGA GeForce GTX 980 04G-P4-2983-KR 4GB SC GAMING w/ACX 2.0, 26% Cooler and 36% Quieter Cooling Graphics Card
HD1 - Hitachi GST Deskstar 7K3000 HDS723020BLA642 (0f12115) 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
HD2 - Seagate Desktop HDD ST500DM002 500GB 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
RAM - G.SKILL Sniper Low Voltage Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3L 1600 (PC3L 12800) Desktop Memory Model F3-12800CL9D-8GBSR2
I originally had a gtx770, but I picked up this new 980 early in December and it worked great. I used the computer for about a month while on break from school and then moved it back to my apartment and opened it up to clean it. In doing so I took the CPU cooler off because it was covered in dust. I threw everything back together and again it worked fine. After about a week back at school, I went home one weekend to see my parents, when I came back the computer would turn on (fans would spin lights would turn on) but I got no display. The graphics card lights up and the fans spin for half a second from time to time (I've heard they don't spin unless they reach a certain temp, but I'm not sure if that is true) The motherboard threw the dr.debug codes "4f 99 a2 d6"
https://www.youtube.com/watch?v=SEMn6EVaibQ
I've tried moving the card to other slots. Moving the memory to different slots or using one stick. I do get the correct code if there is no ram installed. Stupidly I thought it was a mobo dying issue because that's what someone told someone else for receiving the same type of codes. So I went and bought the exact same mobo, but two years newer and I'm still getting the same codes.
All my homework, games, video editing is all on this computer. I need it for school. If anyone can help me that would be much appreciated.
From what I understand I can't try using just vga from my mobo to monitor to get a display because my cpu doesn't support IGP. I've tried HDMI, DVI still nothing shows up.
My PC Specs:
OS - WIndows 7 64bit
CPU - Intel Core i5-2550K Sandy Bridge Quad-Core 3.4GHz (3.8GHz Turbo Boost) LGA 1155 95W BX80623i52550K Desktop Processor Without IGP
CPU FAN - Enermax ETS-T40-BK Black 120mm Twister CPU Cooler with TB Apollish Blue LED PWM Fan
MOBO - ASRock Z77 Extreme4 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard with BIOS version 2.90
PSU - CORSAIR Enthusiast Series TX750 V2 750W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power Supply
GPU - EVGA GeForce GTX 980 04G-P4-2983-KR 4GB SC GAMING w/ACX 2.0, 26% Cooler and 36% Quieter Cooling Graphics Card
HD1 - Hitachi GST Deskstar 7K3000 HDS723020BLA642 (0f12115) 2TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
HD2 - Seagate Desktop HDD ST500DM002 500GB 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
RAM - G.SKILL Sniper Low Voltage Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3L 1600 (PC3L 12800) Desktop Memory Model F3-12800CL9D-8GBSR2
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