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ITX PC Intake/Exhaust Design: Is Intake Needed?

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Just built this:






Do I really need an intake fan? I tried running a 92mm intake on the right side but it just added noise. No cooling benefit at all.

GPU: Getting 70*C load Max 30*C Idle

CPU: Getting 65*C load Max 25*C Idle




My power supply sucks in air and exhausts out the top, is this enough to cool my VRMs on the Z77E. My main concern is whether the motherboard can handle overclocks in the long term without an intake. The power supply is close enough to the side panel (sits directly above the itx) that it draws in air from that side and exhausts it out the top. The CPU has an AIO Cooler that dumps exhaust down to the bottom below the case. So the only real intake fan is the two on the GPU, and obviously that only benefits the GPU.

Runs a lot quieter and the temps seem the same side intake or not. I'm going to remove the Xeon and put the 2550k in soon enough. I just want to make sure I don't burn out my motherboard or something.
 
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Well, experience would say you do need a intake to bring in cold air. But, if it doesn't add any cooling benefit to your hardware and you haven't had any overheating problems then its ultimately your choice.
 
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Motherboard EVGA Z690 Classified
Cooling Noctua NH-D15S, 2xThermalRight TY-143, 4xNoctua NF-A12x25,3xNF-A12x15, 2xAquacomputer Splitty9Active
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Case Lian Li O11 Air Mini
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Power Supply Super Flower Leadex Platinum SE 1000W 80+ Platinum White
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Well, experience would say you do need a intake to bring in cold air. But, if it doesn't add any cooling benefit to your hardware and you haven't had any overheating problems then its ultimately your choice.

I am thinking that the two exhaust fans (power supply fan and radiator fan) serve as intake as well because of the large open hole and that running intake fans just disrupts the air flow. I just want to make sure I am not gonna kill my mobo. The mobo sensor temps are all pretty good, 35*C.
 
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If it were me I would buy a new quiet fan just to be on the safe side. I personally like Noctua fans but there are other more affordable quite fans.

Or just pull it, stress everything on the system for at least a few hours and see where the temps are at for all the internals and the case itself. I use HeavyLoad & CPUID HWMonitor but again lots of options out there.
 
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