My question is fairly simple. Some backstory and specs below.
Can I use the second PCI-E x16 slot for a single GPU without losing performance?
My motherboard's manual only states the following:
In single VGA Card mode, use the PCIe 2.0 x16_1 slot (Navy blue) for a PCI Express x16 graphics card to get better performance.
This saturday my (old) GPU (XFX Radeon 7950) stopped working. I got artifacts in BIOS and instead of the Windows Login Screen it stayed black. By swapping it for an old one, I can tell that the GPU itself is broken. Not the PCI-E slot or anything else in my machine.
I suppose it got too hot. One of the fans didn't spin freely for a long time. But the core never got hotter than 75°C and at the time it stopped working the comptuer was in idle.
After examining the broken GPU I noticed some oxidiced pins / soldered points. Those were close to my RAMs. That's why I think it might got too hot on the upper side of the GPU. That's why I'm planning on putting the new GPU into the second PCI-E slot. For better airflow. See the picture below to understand the tightness, note that the GPU is missing in the picture. Please excuse the messy cables and the dust.
The CPU cooler touches the RAM (red and silver in picture) and surely doesn't let a lot of air get to the top of the GPU. The old GPU was mounted in the first PCI-E slot (Navy blue). Could I put my new GPU in the grey slot below and still get the full performance? Or another way: How can I make sure my GPU is using the full capability? Any tool I can use to check if it runs with x8 or x16 speed?
- Motherboard: ASUS P8P67-M PRO (Micro-ATX)
- New GPU: ASUS GTX 1060 Dual O6G (6GB)
- CPU: Intel i7-2600K @ 3.4GHz (stock)
- RAM: 20GB (2x 2GB, 2x 8GB) 1866 MHz
- PSU: be quiet! 700W
Thanks in advance, fellow super users! I hope this isn't an exact duplicate.