WRONG, WRONG, WRONG, breathes** WRONG, WRONG, WRONG**
I strongly disagree, I seen external cooling units cause consoles to overheat more as it interferes with the built in cooling fan. Especially models made for original XBox 360s. You never want a fan over another fan forcing air, you will burn out of those 2 fans out. External Cooling fans are a waste of money, can void your warranty (read the MS Xbox 360 warranty carefully).
The Fat PS3s are not known for overheating, I left my originally 80 GB Fat PS3 run for 3 days straight running* folding @ home* and it was still cool.
1 out of 1 thousand (or so) PS3s will have a hardware failure, well with in acceptable tolerances for a product failure rate.
The hardware failure rate of a Xbox 360 (both fat and slim) is now Averaging 48.6%, most from bad design and QC, but alot made worst by owners who didn’t know how to take care of there consoles as well.
For the PS3:
The First 20, 40, 60 units had the better 19 blade fans over the later consoles that had 15 blade fans. Ether way the PS3 fat cooling fan is a beast, its like a turbine compared to most cooling fans. Slapping some El-cheapo 60mm PC fan masquerading as a PS3 accessory would do more damage than not having one at all.
There were problems, but it was more due to error of the Owner than the manufacture, Putting a console in an enclosed case or area with out air ventilation.
Current gen consoles must have 4 sides clear of obstruction to properly cool them selves, meaning if you have the system horizontally, the front, back and both left and right sides have to have atleast 6 inches of air space to cool.
Most Entertainment center furniture has enclosed spaces for entertainment equipment, ether a wooden or glass door closing off the shelf space from outside air, with rear openings only big enough to feed power and video cables though. Having the system on top of a towel or carpet is also a bad move as it blocks air vents, holds in heat and lint can clog air paths. Cooling fans isn’t a response to issues with the console, but to sucker in uninformed customers.
Yes and no. With the exception of fat Xbox 360s, the internal cooling fan best left alone to do its job alone.
Most 3rd external fans interfere with the normal internal fan operation, ether forcing too much air in the WRONG direction or negatively impacting air follow.
If you really want a better cooling fan for your console, you have to replace the stock cooling fan with an aftermarket fan.
For the fat PS3s this mean a 19 blade or better fan that meets or exceeds the specs of the 19 blade fan that in the earlier model consoles
For fat Xbox 360, you want to look for a damn fan that will pull enough air.
Ether console I recommend tailsmoon brand aftermarket fans. Avoid XCM.
Note: Doing a fan replacement will void your consoles warranty and makes you un-eligible for Microsoft or Sony’s repair services.