Cooler Master V8 is passive possible while OC a quad core?

[Kenmitch]

Just finished building and testing a system that was derived from parts,traded for,and some pretty good Black Friday Deals

System Specs.
Q9550 EO @4.02ghz vcore 1.300 stable once I figured out OCCT errors cores due to mem OC
Cooler Master V8
Cooler Master HAF 922
Asus P5Q deluxe
OCZ DDR2-1066 @2.2volts running at 943mhz 1:1 @5-5-5-15
Antec TP550
Visiontek HD 4850
WD 640gb Black

Anyways during testing I was playing with the V8 fan controll and it didn't have any effect on the core temps....Just make more noise the faster it goes.

I was wondering if it would be possible to run the V8 with no fan at all with this setup. Seems like maybe the top fan could be plugged into the CPU header and take over.

Heres a shot of the upper case and cooler....Hmmm

Thanks ,
Ken

 

[faxon]

wouldnt consider that cooler actively cooling a quad core for extreme overclocking. the hyper Z600 from coolermaster cools better than it and it costs less to boot.

 

[Kenmitch]

wouldnt consider that cooler actively cooling a quad core for extreme overclocking. the hyper Z600 from coolermaster cools better than it and it costs less to boot.

I don't plan on doing any extreme overclocking

I got the black friday deal on Newegg only 39.99 I was looking around but didn't see anything better for the price at the time.

I think the pull then push is what holds the cooler back. Just doesn't get much air flow thru it.

I guess I could just try it tonight and see. It's not like it's gonna shoot up to 100*C as soon as the cores are loaded. Maybe try it at stock speed first....Hmmm

 

[wwswimming]

I was wondering if it would be possible to run the V8 with no fan at all with this setup. Seems like maybe the top fan could be plugged into the CPU header and take over.

Heres a shot of the upper case and cooler....Hmmm

there's a lot of surface area on that heat sink but it has that plastic shroud.

i have this engineering textbook that's about 30 years old ... from an old heat sink manufacturer named AhamTor ... it shows the thermal resistance for a piece of plate aluminum in various conditions.

200 square inches - .7 degrees C per watt - passively cooled.

so a 100 watts would see a 70 degree C rise above ambient. assuming that's 20 degrees C ... that puts the base of the heatsink at 90+ and the CPU lid a few degrees hotter than that.

1000 square inches - .3 degrees C per watt - passively cooled.

100 watts = 30 degrees C.

A N Y W A Y ... i think if you have a tower heat sink fan whose fins are exposed to a big case fan on the side, you got a good chance of keeping the temps reasonable without needing the CPU fan.

O H Y E A H ... that is one of the nicest cleanest systems i've ever seen.

can we see a picture of your closet ? are your shoes all lined up in a row ? i'm not making fun of you. you're just ... way more organized than I.

 

[WildW]

I would investigate using some kind of shroud to channel the airflow from the existing case fans through the cpu heatsink - the Dell under my desk here does that for a "passively" cooled Prescott-core Pentium 4.

I've seen some ducting mods sold commercially made from extendable plastic tubing, but you can experiment with simpler materials (paper/card/etc) as a proof-of-concept.

 

[Kenmitch]

I would investigate using some kind of shroud to channel the airflow from the existing case fans through the cpu heatsink - the Dell under my desk here does that for a "passively" cooled Prescott-core Pentium 4.

I've seen some ducting mods sold commercially made from extendable plastic tubing, but you can experiment with simpler materials (paper/card/etc) as a proof-of-concept.

Although the V8 worked pretty good to cool the Q9550 I decided to go with water cooling on this sytem

A N Y W A Y ... i think if you have a tower heat sink fan whose fins are exposed to a big case fan on the side, you got a good chance of keeping the temps reasonable without needing the CPU fan.

O H Y E A H ... that is one of the nicest cleanest systems i've ever seen.

can we see a picture of your closet ? are your shoes all lined up in a row ? i'm not making fun of you. you're just ... way more organized than I.

The Cooler Master HAF 922 has so much room and cable management options that it's not hard to make the system look nice and neat.

My closet is a diff story....Shit everywhere
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I decide to use the V8 on my e5200 system as this chip needed a better cooler to finish my OC testing....The cooler makes 4.25ghz a reality

Idle temps in realtemp are 35*C on both cores(Maybe chip doesn't read lower than that ever) and fully loaded during 10 run of Intel Burn test the chip is in the 70's on both cores. During OCCT stress testing the chip runs in the 60's on both cores. From fully loaded temp to idle temp it takes about 2 seconds or so to drop down....I'd say the V8 was worth the $40 I got it for.

 

[Cheex]

The push-pull fan is similar to the Tuniq Tower 120. That is what made that cooler so efficient. I don't think that would be really a fault of the V8.

Although, with that much surface are, it should be able to manage passively.

 

[yh125d]

Short answer: Yes


Long answer: Yes, but you'll have to sacrifice. You can run it fine, but temps will be a bit higher (but should still be manageable) depending on ambients/case airflow. And you'll likely have to lower the OC.

 

[smackababy]

To be honest, I have a Sunbeam Core Contact Cooler when I was on air and I had no change in temps from fan off to fan high. Maybe because of the way I had air flow through my system.

 

[TJCS]

Don't run your cpu without a heatsink. A fan might not do much at nominal temps if you have good airflow in your case, but once you start to push your CPU and the room temperature rises your fan becomes a valuable asset to heat dissipation. Depending on the airflow of your case, a heated CPU adds stress to other components in your system as well.

I easily oc'ed my laptop gpu at controlled temperatures during the cooler months, and when extreme summer heat came one day it killed the gpu. I hope this doesn't happen to you.