Tis that time of year - mildy spooky pc behaviour.

Tetreg · 11 Oct 2020 at 22:26

I recently built my first computer after my laptop got too old to game with. It has a 9700k intel cpu, an amd rtx 5700 red devil gpu, 2 16gb corsair vengeance ram sticks, and a gigabyte gaming x motherboard. I use aircooling. I have 1 1080p and 1 1440p monitor setup and I've noticed whilst gaming that (i use a controller) if i move the cursor to the 1080 screen rather than 1440 i game with the gpu drops about 10 degrees and the fans rev down but game performance is completely unhindered despite the gpu apparently working a lot less hard. When I click back to the 1440p screen the gpu fan speed shoots to maximum briefly, calms down again and the gpu begins running hot once more. I don't suppose anyone has an explanation for these slightly odd phenomena? The only thing i can think of is that 1440 screen has vsync enabled whilst the 1080 doesn't have this feature. I was also wondering if a gpu temp of just under 70c and a junction temp of just over 80c is acceptable for this card (that is when I'm using the 1440 screen)? I still have a few more case fans to add so hopefully i can drop the temp by a couple of degrees.

mickyflinn · 11 Oct 2020 at 22:37

Do you have the all drivers up to date ?

Download Msi afterburner monitor your gpu and maybe set a custom fan curve.

80c is acceptable but what sort of case fans and cpu cooler fo you have.

Tetreg · 11 Oct 2020 at 23:02

Drives are up to date, and the odd behavior was with a custom curve. I simply have the 2 case fans and fans that came with the gpu. The cpu fan is an artic model i think. It's about a decade old but is still fairly effective and very quiet most of the time. CPU doesn't seem to have to work too much to run destiny 2 so never gets above 60c.

mickyflinn · 11 Oct 2020 at 23:13

It's a wired one Maybe updating the gpu bios if available mite have some benefit.

Is there a dual bios switch , silent and oc mode ?

spolsh · 12 Oct 2020 at 00:28

Am I reading this wrong ? You're wondering why the GPU runs hotter when running a game on the 1440p screen than the 1080p one ? If so, it runs hotter because it's pushing more pixels.

mickyflinn · 12 Oct 2020 at 13:15

spolsh said:
Am I reading this wrong ? You're wondering why the GPU runs hotter when running a game on the 1440p screen than the 1080p one ? If so, it runs hotter because it's pushing more pixels.

Yes you are.

When he moves the mouse cursor from a 1080p monitor to the 1440p monitor the gpu fans ramp up and temp increases by 10c.

Tetreg · 12 Oct 2020 at 16:09

It does have a dual bios between a factory overclock and a silent mode. I stick with the overclocked mode. The game remains on the 1440 screen throughout the temperature fluctuations. The bios can only be changed via a switch on the card so it should be a constant and not be affecting the temperature in said manner.