I am building a custom PC with an Asus Z77 Sabertooth motherboard and an HIS Radeon HD 7950 hooked up to a verified working monitor using DVI. When I first hooked everything up and turned the PC on, I got the POST beep and then nothing else, but the screen stayed black and I never got to the BIOS. At this point, the red VGA_LED was continuously lit. So I flashed the BIOS using the USB Flash feature and same thing happened. So then I used the clear RTC RAM jumper, then flashed BIOS again and when the PC starts up now, I get the POST beep, then a pause, then 1 long beep followed immediately by 3 short beeps, followed by a small pause and another short beep. So I looked all that up and it made me think it was the video card.
So to test that, I removed the HIS card and replaced it with my previously working ATI Radeon xt1900, which was working on my old computer. I got the same error. I then removed the video cards altogether and hooked up my flat screen TV to the onboard graphics controller using HDMI. I have not hooked my computer up to this TV before, but I did hook up a laptop to it through HDMI without any problems, so I think the TV is not the issue. But even with the onboard graphics controller being used and no video card installed, I get the same 1 long beep and 3 short beeps, continuous red VGA_LED and no video.
I have verified its not the power supply because I hooked up a working power supply and no difference. I also have removed the HDD so as to eliminate that. Basically, I have a PSU, the motherboard, the CPU and fan/heatsink and the video card only.
The memory I'm using is Corsair Vengeance LP DDR3 1600 MHz and I have 4x8GB and I've tried each stick of memory individually without the others, so I don't think that's it either. I haven't 100% verified the memory but what are the chances of 4 out of 4 sticks being bad, you know?
The only thing I haven't been able to verify is the CPU because I can't get the heatsink off. The rod inside the heatsink posts on the i7 2700k heatsink are lodged through the post hole and I can't get them to come back out. I thought it might be that, perhaps a pin was broken or something and the CPU was failing, but then wouldn't the CPU light appear?
Any ideas? I'm at my wit's end.
So to test that, I removed the HIS card and replaced it with my previously working ATI Radeon xt1900, which was working on my old computer. I got the same error. I then removed the video cards altogether and hooked up my flat screen TV to the onboard graphics controller using HDMI. I have not hooked my computer up to this TV before, but I did hook up a laptop to it through HDMI without any problems, so I think the TV is not the issue. But even with the onboard graphics controller being used and no video card installed, I get the same 1 long beep and 3 short beeps, continuous red VGA_LED and no video.
I have verified its not the power supply because I hooked up a working power supply and no difference. I also have removed the HDD so as to eliminate that. Basically, I have a PSU, the motherboard, the CPU and fan/heatsink and the video card only.
The memory I'm using is Corsair Vengeance LP DDR3 1600 MHz and I have 4x8GB and I've tried each stick of memory individually without the others, so I don't think that's it either. I haven't 100% verified the memory but what are the chances of 4 out of 4 sticks being bad, you know?
The only thing I haven't been able to verify is the CPU because I can't get the heatsink off. The rod inside the heatsink posts on the i7 2700k heatsink are lodged through the post hole and I can't get them to come back out. I thought it might be that, perhaps a pin was broken or something and the CPU was failing, but then wouldn't the CPU light appear?
Any ideas? I'm at my wit's end.