4 replies to this topic

[Howzer]

You guys have always been helpful in past so thought I would throw this out there. You helped me upgrade my old computer 2.5 years ago and build a new one 1.5 years ago. The older one is not used much for gaming but has been having a strange issue with the GPU fan where the fan tachometer will drop down to less than 200 RPM while the fan speed % will be at 40% or higher. The fan speed % will rise as the GPU temp rises but the RPM will stay constant at less than 200 RPM. Once the GPU temp gets close to 80, then the fan RPM's suddenly increases to 3900 or so. The fan speed% and the tachometer will then both come down as the GPU temp drops. When the fan tachometer gets to around 1900 rpm for a while, it just drops down to below 200 and the process starts again. There is a shorter time period if I use a custom (more aggressive) fan control profile and a longer one if I use default. This will still happen with Afterburner disabled (I can tell by the sound of the fan suddenly jumping to near maximum). This started happening in the last month or so. I just updated from Omega to Crimson 16.1 yesterday and it made no difference. Oddly, Afterburner still listed Catalyst 15.8 so I uninstalled and reinstalled Afterburner and now it lists Crimson 16.1 but still no change in the problem.



Thank you for any help.

I tried to post an Afterburner logfile to the above post using the image button (using Imgur) but it froze and using paste from Word, which showed the image while I was writing the post but not after it posted. What is the best way to add an image to the post? Thanks again.

[Howzer]

Here is the logfile

[Oderint dum Metuant]

Odd short of a faulty card are you using a default fan profile or custom as standard?

Do you have a spare card you can try?

[Howzer]

The above happens whether on custom fan profile or default. I have noticed a few things:
1) When the tachometer is reading very low (ie 100-200 RPM) the GPU fan is not moving
2) By playing with the custom fan profiles I have noted:
a. The fan kicks back in when the fan speed reaches 80-90%
b. The fan will drop to low/no RPM's sooner if the fan speed is dropping more quickly. Therefore, if I use a fan profile that is very flat then it will take a lot longer for the fan to drop down/turn off. If I use a profile that drops very slowly and then keeps the fan speed above 58-60%, then the fan won't drop down/turn off for quite some time or perhaps not at all
3) I have a 4850 card laying around (was the original card in this computer) but probably won't be able to try it for a few days or perhaps this weekend.


BTW, specs:

Gateway FX6800-01e
i7 920
15 GBDDR3 (1G x 3 original, 4G x 3 added later)
Power Color HD7870 (replaced a 4850)
Corsair CX750M PSU (replaced a Lite On 400 or 450; I forget)
Windows 7 Pro installed on a 256G Samsung SSD, 750 G Hard Drive for storage and 2G Hard Drive for back up

PSU and GPU were upgraded to those above to play MWO in fall 2013. New desktop built (with this forum's help) in 6/2014. The Gateway is now mainly used for MS Office, other work from home, storing and making hi def DVD's (AVCHD) but not really editing (1080P home video), iTunes (I back up to computer not cloud), etc

Anybody else have any thoughts

Edited by Howzer, 11 January 2016 - 08:19 PM.

[Howzer]

Finally had time to change back to the old HD 4850 and problem is gone. Since I no longer use the 17 920 for gaming. I guess I'll just leave the 4850 in there.