run Q9550 passive?

Associate
Joined
11 Feb 2007
Posts
1,711
Location
London / Essex
want to get a heatsink that maybe able to run the above cpu without another fan.

Current setup is TJ09, 4x 120mm yate loon @ 800rpm, 8gb dominator no fan, gtx280 and 4x ssd, atm I have a zalman cnps9700 running at the lowest setting and keeps the cpu about 40 idle 65 at 100%

the cpu is at stock and don't plan to OC

was looking at these which would be best for the above task or is another you would recommend


Scythe Orochi
Scythe Ninja II (have this in my fileserver so could swap with my zalman)
Coolermaster Hyper Z600
Asus Silent Square Evo
 
Last edited:
A true would be a good idea, or a Tuniq Tower.

I'd also consider slightly undervolting your CPU, even a relatively small adjustment can yield good results.
 
Thermalright Ultra-120 eXtreme


I use a *passive* TRUE to cool an overclocked Wolfdale dual-core, works very well although a few other peeps have recommended the Thermalright HR-01 Plus as a great passive cooler (reviews put it a few degrees better than a passive TRUE). Add a fan and the TRUE is better, totally passive the HR-01 Plus wins! :o

Thermalright HR-01 Plus


Lawrence Lee @ silentpcreview.com said:
hr01plus03aq3.jpg


The Thermalright HR-01 Plus is better suited for ultra-quiet cooling than either the Thermalright Ultra-120 eXtreme or the Xigmatek HDT-S1283, due to its unmatched performance with extremely limited airflow. Though our test platform is not suitable for passive operation, the excellent low airflow results indicate that the Thermalright HR-01 Plus is probably the best candidate for a completely passive cooler. At higher fan speeds, the three were within an insignificant one degree of each other, making it a virtual three-way tie for the crown.

Thermalright HR-01 Plus: 2nd Gen Killer Tower Cooler
 
Last edited:
I'll add that I use a thermalright TRUE on a q9550, and turn off the fan when the systems not running overclocked. Works very well.

Now all I need to do is learn how to turn off power supply fans and graphics cards without unplugging them..
 
As Big.Wayne correctly points out - the Thermalright HR-01 is designed first and foremost for passive cooling. It's better than the TRUE because it has vertical passive cooling as well as big fins. I can totally recommend the Intel version with blue duct that lets it take air from the rear-mounted 120mm fan if you have one. It works exceptionally well with the Q9x00 series (I used it with a Q9450 with a small overclock on it).
 
I'll add that I use a thermalright TRUE on a q9550, and turn off the fan when the systems not running overclocked. Works very well.

Now all I need to do is learn how to turn off power supply fans and graphics cards without unplugging them..

noooooooooooooooo!

unless you want your psu & gfx to go pop.

Theres no such thing a passive psu all require a fan of some sort even if its silent I would advise going for a zalman heatpipe psu.

Also with gfx heat can cause major issues so just turning the fans off isent the answer you could change the cooler but there isnet many out for the 280 yet
 
I can totally recommend the Intel version with blue duct that lets it take air from the rear-mounted 120mm fan if you have one. It works exceptionally well with the Q9x00 series (I used it with a Q9450 with a small overclock on it).

never seen one you got pic's? also is the Scythe Orochi no good? that thing is huge and would sit very close to the 3 case fans
 
a few other peeps have recommended the Thermalright HR-01 Plus as a great passive cooler
Those "peeps" would have course be WJA96 and Pneumonic! :cool:

I'm tempted to give a Thermalright HR-01 Plus a bash in the future if I can source one for sale lol! :p

I just noticed you do actually get fan-clips so you are able to attach a quiet low rpm fan, pretty sure thats a new addition as last time I looked you had to use the duct or use rubber bands to attach a fan? :confused:

hr01plus15fj7.jpg
 
Also with gfx heat can cause major issues so just turning the fans off isent the answer you could change the cooler but there isnet many out for the 280 yet

Fanless power supply doesn't seem sensible, but I think turning off a graphics card should be.

You've misunderstood me mate, I don't want to turn off the fan on the gfx card, I want to turn off the card itself. I've got a passive 8800gt running a monitor, and a 9600 single slot running folding at home but no screens. If I can turn off the 9600 then my case will be far quieter while watching a film :)
 
You've misunderstood me mate, I don't want to turn off the fan on the gfx card, I want to turn off the card itself. I've got a passive 8800gt running a monitor, and a 9600 single slot running folding at home but no screens. If I can turn off the 9600 then my case will be far quieter while watching a film :)

What you are describing is a feature of all Hybrid SLi motherboards.
 
I tend to run mine at 2ghz passive, temps don't make it above 35 or so. Only use it for films and music like this, so four 2ghz cores are more than enough.

All hybrid sli motherboards do this? I haven't seen a feature in the bios for this, but then I am using a crossfire board. I shall search the bios when I next reboot :)
 
All hybrid sli motherboards do this? I haven't seen a feature in the bios for this, but then I am using a crossfire board. I shall search the bios when I next reboot :)

Yes, all the Hybrid SLi boards do it. They all have onboard graphics to allow them to do it. If you don't need 3D, they shut down the PCIe slot graphics and run 2D off the onboard. It is very power efficient.
 
That duct setup looks very good, with the rear case fan attached to the cooler, im wondering if it would be possible to attach a longer length of the same duct tube to an intake fan. I currently run 5 sharkoon silent eagle 2000 rpm fans in my rig, 2 on my TRUE, 1 exhaust, 1 bottom intake and a second intake in a scythe kama bay. I took out the dust filters in the case to help with airflow (i clean the system with an airline once a week) Would a duct system with direct airflow into the cooler help much with temps.?
 
Theres no such thing a passive psu all require a fan of some sort even if its silent I would advise going for a zalman heatpipe psu.

Their are fanless PSU - both passive air cooled and watercooled.

Overpriced, heavy and less efficent than the newest to hit the shops.
Not recomended unless, like me silent running is your goal and you move the heat out of your case by heatpipe or watercooling

The Fan-duct-HR-01 shown above is not really passive, but does remove the need for an 'extra' fan and works very well, not sure if a TRUE setup this way would work better or not...?

I've also seen this approach used but with a duct to the PSU fan (and no rear fan) in a system with just an intake fan and the PSU as outlet.
Inlet fan was linked to bios oc profile, via uguru. Wasn't a quad system but his E8500 was in the low 40c day-to-day and mid 50 at OC'ed load. :cool:

The other thing to remember is the duct acts as a shroud so the dead spot of the fan is negated and max efficency gained - simular to what should be happening on a watercool rad :)
 
Last edited:
Back
Top Bottom