My Sapphire HD 7970 has recently started a loud, annoying, coil whine whenever the GPU load goes above 50%. I submitted a warranty request but I have a feeling it will get shot down. Anyone have any tips on how to stop this crap form happening? It's soooooo annoying.
Troubleshooting steps thus far:
1. Reseated card.
2. Reloaded drivers.
3. Swapped PCI-E power cables and the modular PSU spots they were in.
4. Flipped the BIOS switch on the card.
5. Unplugged PSU and held power button down for a minute to clear all power in the case.
It is only happening under heavy load, and it wasn't happening last night. Come home from work, and BAM, coil whine. It pulses and changes pitch as a run around a game, which makes it even worse.
1. Skyrim: Whine.
2. TSW: Whine.
3. Max Payne 3: Whine.
4. Terraria: No whine.
I believe coil whine is usually caused by bad caps. Are you sure it is the GPU and not the PSU? I purchased a brand new PSU to replace a solid one that had worked for almost two years without issue until it started making a faint clicking noise. The brand new PSU makes a bit of coil whine especially when under higher load. I got an RMA on my original and no more coil whine. Are you able to RMA your card?