Using Rear fan as intake

[Tyler Paul_1]

Hello everyone I will make this quick,

Ive recently bought a new case I previously had a cit spectre and have now upgraded to a much better looking avp x6. The case was great to build in and looks way better then my previous but sadly the airflow in it isn't great. my ryzen 5 oc to 3.8ghz on 1.3V used to be an idle of 30c and now its an idle of 40c.

this case can support a massive 6 fans (2 front, 1 top, 2 bottom, 1 rear.) However due to the chasis being solid airflow is restricted for my two only intakes. Currently, the top fan, rear fan and the two front fans are occupied with the top and rear being exhaust.

What im wondering is would i see improved temps if i changed one of the exhausts to intake?

 

[InvalidError]

If your idle jumped up 10C with six case fans installed, it seems extremely unlikely to be an airflow problem. Depending on what "1.3V" means on your motherboard, the core voltage could be 100+mV higher and the temperature increase may be due to increasing leakage. Another possibility is simply that 30C is well into the temperature sensing's non-linear range and the "10C" increase is much smaller in reality. PN junctions aren't particularly accurate at measuring temperatures below 50C or so, which is why you often see people getting completely bogus temperatures, such as temperatures below ambient, at idle.

 

[Giroro]

There's a lot of factors to consider when designing airflow through a case, but I wouldn't expect temps to improve just by flipping around an exhaust. A lot of CPU coolers are designed to suck in air coming from the front and push it towards the back. If yours is like that then the fans would fight against each other and you would get even less airflow to the CPU.
It would be better to just add an extra fan to the bottom of your case as an intake, or to put higher performing fans on the front. I don't understand what you mean by the chassis being solid. There's places to mount fans that have no vents at all to the motherboard?

Before changing around the fans too much, I would check to make sure that all the fans are guiding air in the same direction. The flow of most cases is from the front-bottom to the rear-top. As a general rule of thumb, any fan slot with a dust filter is intended to be an intake, and you want to build positive pressure in the case (slightly more air being pushed in than pulled out) as this helps with dust control.

What I think most likely happened though, is your CPU cooler either got bumped and loosened whilst moving things over, or was not properly reinstalled if you took it off before moving the motherboard into the new case. It a good idea to try removing your CPU cooler and reapplying a high quality thermal paste.