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Passive Cooling that is better then Intel Stock for E8400

Jan 24, 2008
740 (0.20/day)
Belgium ⇒ Limburg
System Name HP Z800 Workstation
Processor 2 x Intel Xeon 5680 ( = 12 x 3.463Ghz )
Motherboard HP Z800 Workstation - Motherboard
Cooling HP Z800 Workstation - Liquid cooling solution
Memory 16GB Dual-Channel DDR3 @ 1333MHz (9-9-9-24)
Video Card(s) Gigabyte RX Vega 56 ( with Vega 64 bios )
Storage SSD Samsung 840 Pro 500GB
Display(s) EIZO FS2434-BK
Case HP Z800 Workstation
Audio Device(s) Sennheiser GSP 300 ( Headset )
Power Supply HP Z800 Workstation - 1110 WATT ( 36 amps on 12V )
Mouse Logitech G502
Keyboard Logitech G 15
Software Windows 10 Pro 64bit
I was wondering. Are their passive coolers that perform better then the Intel E8400 stock cooler? I can't seem to find any reviews... Well, I can find reviews, but the reviewers always put a fan on them so there is no way of telling how the cooler performs without the fan.

Is it possible that the Thermalright Ultima 90 cools better?

I am using an Antec Nine Hundred case with:
- Stock Front fans
- Stock Top fan
- Stock Rear fan ( Where exactly? -> http://img148.imageshack.us/img148/623/10kg6.jpg )
- 1 Extra Scythe Minebea 120mm 1100rpm fan on the side ( Where exactly? -> http://img211.imageshack.us/img211/846/52089516jn6.jpg )
- 1 Extra Scythe DFS123812L 120mm 2000rpm fan inside the case ( Where exactly? -> http://img148.imageshack.us/img148/6849/14ds7.jpg )

Do you guys think that I can get the E8400 to 4.3Ghz with this cooling?
May 10, 2007
1,396 (0.36/day)
London, England
Scythe makes some good large coolers, that can run a CPU in psuedo-passive (psuedo passive because you have fans pointing at it anyhow)
My OCZ Vindicator is not as good as the Scythe Ninja, but its 1000RPM fan is dead silent, and even without the fan, my P180's stock rear and top fans could cool it just fine on low settings. With a slightly faster fan on it, temps didn't drop a whole lot, so it's a testament to how well cooled it already was.
Dec 18, 2005
6,101 (1.38/day)
System Name money pit..
Processor Intel 7700K at 4800 mhz.. vcore 1.280 volts..
Motherboard Asus rog Strix Z279F Gaming
Cooling Dark Rock TF air cooler.. Stock vga air coolers with case side fans to help cooling..
Memory 32 gb corsair vengeance 3200
Video Card(s) Palit Super Jetstream 1070 x 2..
Storage Three.. all solid state 128 Transend.. 1 T Sandisk.. 1 T Transend.. plus USB external..
Display(s) 27" Asus PG279Q ROG Swift 165Hrz Nvidia G-Sync, IPS.. 2560x1440..
Case Gigabyte mid-tower.. cheap and not really big enough for what is inside..
Audio Device(s) USB Sound blaster Roar 2 all in one unit with bluetooth
Power Supply EVGA 850 watt..
Mouse Logitech G700s
Keyboard Logitech K270
Software Win 10 pro..
Benchmark Scores 3Dmark Firestrike Ultra 8542.. Timespy 10508.. everyday settings..
why bother with passive cpu cooling when u have all those case fans.. a simple artic pro runs silent at low fan speeds.. the noise gain from passive would be pretty much zilch..

4.3 is pretty extreme.. 4 might make more sense for 24/7 silent running.. 4.3 is in the crank the volts up region just for the sake of it for little real gain..

so i would say 4 yes 4.3 not really..