Normal
One other layout would be a 'facing opposing' layout, with the backsides of both the motherboard and GPU attached to opposing case walls, and with both sharing a single 'plenum chamber'. Maintenance is complicated in that removing the case side means having the GPU temporarily retained by the flex riser and power cables (though once detached you have more room to work inside), but fan restriction is minimised and a short flex riser can be used.I believe the fine-pitch exit stators on Silverstone's Air Penetrator line were intended to counteract this effect. Sadly there are no 92mm or thin 120mm variants. A flow collimator could be retrofitted to existing fans though, either of the stator design like in the Air Penetrators, or a more common packed-tube design (think taking a bundle of aligned drinking starws, then cutting them to the desired length).
One other layout would be a 'facing opposing' layout, with the backsides of both the motherboard and GPU attached to opposing case walls, and with both sharing a single 'plenum chamber'. Maintenance is complicated in that removing the case side means having the GPU temporarily retained by the flex riser and power cables (though once detached you have more room to work inside), but fan restriction is minimised and a short flex riser can be used.
I believe the fine-pitch exit stators on Silverstone's Air Penetrator line were intended to counteract this effect. Sadly there are no 92mm or thin 120mm variants. A flow collimator could be retrofitted to existing fans though, either of the stator design like in the Air Penetrators, or a more common packed-tube design (think taking a bundle of aligned drinking starws, then cutting them to the desired length).
