Solved

Sapphire Radeon 7790 2GB OC fan issue

Hello ladies and gentlemen,

I have a weird issue with the mentioned card. The fan does not seem to spin at low RPM (and I mean at all). It then automatically turns it on full blast if and when it hits about 84C (I imagine it's a safety trigger), but off again as soon as it cools down a bit.

Also, manually setting speed does nothing unless I set it to at least 80% (and even then, lowering to less than 70% makes it stop).

The card is new (less than 3 months since installation) and I've had this issue with the 2 latest versions of ATI drivers and the latest beta version in Windows 7, 8 and Linux Fedora 20 (KDE).

I honestly do not know if it did this from the beginning or not.

And yes, auto-fan-speed with things like trixx and afterburn do the exact same thing.

I really want to know if I'm doing something wrong or if I need to send the card in..

Other hardware related content:
Motherboard MSI Z87-G43
CPU: Intel i5 4670K
RAM: Corsair Vengeance 1866
PSU: Seasonic S12II-620 Bronze
....


PS: On the upside.. with the fan turned off it idles at about 55C, which is nice cooling i guess..


PPS: I only realised I posted this in the Systems forum, I apologize
Reply to pax967
3 answers Last reply Best Answer
More about sapphire radeon 7790 2gb fan issue
  1. Best answer
    Sounds like the fan is broken. time to RMA.

    Wei
    Reply to weilin
  2. Hi. I have the same problem. When I bought my Sapphire Radeon HD 7790 it worked fine. The fan starts spin on 1.0 rpm with the start of the system Win7 x64. Then I migrated to Win8.1 x64 and the fan continue to operate normally for half a year. It was a month ago I notice that the fan start spins on very high level 3.5-4.0 rpm. and temp of the VC is 75-80c. Some times completely stop working under 45c. Did you find answer for your problem? I tried with different drivers even with the original from dvd provided from seller. I completely remove all AMD and ATI drivers as is specified hire in Tom's and nothing same problem appears again and again.
    Reply to Petar Petrov
  3. Petar Petrov said:
    Hi. I have the same problem. When I bought my Sapphire Radeon HD 7790 it worked fine. The fan starts spin on 1.0 rpm with the start of the system Win7 x64. Then I migrated to Win8.1 x64 and the fan continue to operate normally for half a year. It was a month ago I notice that the fan start spins on very high level 3.5-4.0 rpm. and temp of the VC is 75-80c. Some times completely stop working under 45c. Did you find answer for your problem? I tried with different drivers even with the original from dvd provided from seller. I completely remove all AMD and ATI drivers as is specified hire in Tom's and nothing same problem appears again and again.



    Hi there!

    I know this comes 3 years after you asked, but I did what the solution recommended: phoned up and got a different card through RMA (well, I sent it in service, they couldn't get it fixed so I got a different one :)
    Reply to pax967
Ask a new question Answer

Read More

Sapphire Radeon 7790 Graphics Cards