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Scythe Big Shuriken 2 Rev. B optimal replacement fan for i7-3820 ?

5K views 12 replies 4 participants last post by  thomasj90 
#1 ·
I could use some suggestions in regards of replacing the fan on Scythe Big Shuriken 2 Rev. B with something stronger.

Specifically - anyone has any glue or speculation how this cooler scales with CFM and/or static pressure? It's a pretty thin cooler so I would assume that it scales better with CFM to some degree than with high static pressure but I'm quite interested in other peoples experience with that cooler. In a nutshell I'm looking for the best fan option for that cooler which would strike a good balance between noise and cooling capacity. Should I rig up a shroud somehow to put a 140mm fan on it, or perhaps a 38mm 120mm fan like ultra kaze?

Currently this heat-sink has a Arctic Fan F12 on it - http://www.arctic.ac/eu_en/arctic-f12.html - in a nutshell ~70 cfm and 1mm H2O pressure normal 25mm thick and ~1350 rpm fan. Which should be healthy upgrade from the stock 12mm thick slim fan rated for up to 38 cmf at 2000 rpm.

I am cooling an i7-3820 @ 4.3 GHz with it at stock volts. I'm hitting about 75 C under load and approx 50 C idle and would like to get these temperatures a little lower, if possible. In addition I would like to avoid going nuts with noise although I am considering to put Ultra Kaze 3000 rpm on it for a change just to see if it improves temperatures significantly (2.5 mm H2O, 133 cfm but also loud as hell at full rpm)

Has anyone managed to get a 140mm fan somehow mounted on it? If it has been done then how?

Height wise I actually do not have large problems - just because this is a mobile system then I rather would not put a tower heat-sink on it. I have already lost one motherboard to the potholes + heavy tower heatsink (Thermaltake Frio) combo in the past. So even "thick" fans are an option, although I would prefer to keep the total height under ~100 mm so any construct on top of the heatsink would be ideally smaller than ~60 mm in height.

Any thoughts? Suggestions ?
 
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#3 ·
Quote:
Originally Posted by baii View Post

You can look at 65 fans tested on megahalem and 60 fans tested on megahalem. The arctic seem to fare well and cheap.

Those fan adapter seems to be resemble close rib fan, so zip tie screw or some modding will be needed.

This is the performance gain with 25mm fan. http://www.silentpcreview.com/article1270-page7.html
Taking a good look at the review - while it is certainly interesting to read it unfortunately does not seem to answer one of my core questions in my mind for this heat-sink - to which extent it is reasonable to increase the airflow for that heat-sink and still expect some performance gain. The thick fan used in that comparison had practically the same top cfm rating than the included silm fan, it was just running at half of the rpm and as such was much more quiet.

Would it actually make sense to from 1mm H2O ~70 cfm fan to 2.5 mm H2O and ~133 cfm fan or it would make practically no difference other than substantially elevated noise levels?

And yeah, the few adapters I have managed to find for sale seem to be predominantly with closed edges so the clip to hold the 120mm fan does not go in in their default configuration. Will have to think about it some. If I could somehow hook a 140mm in there it might provide me with the increased airflow for the heatsink I'm looking for while also giving somewhat lower noise level than achieving the same airflow with a 120mm fan.

Megahalem is a entirely different beast though than Sythe big shuriken. The big shuriken has very thin fins while megahalem is a classical tower heat-sink which might benefit a lot more from high static pressure than Sythe might.

Thanx for your help. This will give some food for thought for sure.
 
#4 ·
What is case fan airflow layout?
What case mods?
What is the air temp going into Shuriken?

Just a 'reach out and grab' guess is you have Shuriken fan pushing air into cooler. Often just turning the fan over lowers temps by 8-10c .. even when open bench testing.
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You might find case airflow article in "Ways to Better Cooling" thread (linked below) helpful. 1st post is index, click on topic of interest to see it.
 
#5 ·
Current setup:


Intake: scythe 1600 rpm slim pushing through the HDD age (3 slots, 2 occupied); bottom 140x25mm at 1500 rpm, no restrictions other than 2x SSD pushing straight to the GFX cards
Out: PSU fan, fixed at 1200 rpm in corsair link regardless of psu load; 80 mm quiet low rpm case fan running at approx 1500 rpm; 140 mm sidepanel at approx 1100 rpm drawing hot air out from gpu area.

On Big shuriken there is Artic F12 instead of the default slim fan atm. I see about 50 C temperature idle and with intel burn test running I hit straight to 70 C and then climb slowly to about 80 C (CPUID Hardware monitor), at around 75 C I start to see something that seems a lot like thermal throttling although Intel should not be doing that under ~90 C. I have not measured the air going into shuriken.

Case mods: HDD cage in 5.25'' bays in top, handle on top.
 
#6 ·
Quote:
Originally Posted by Carniflex View Post

Current setup:


Intake: scythe 1600 rpm slim pushing through the HDD age (3 slots, 2 occupied); bottom 140x25mm at 1500 rpm, no restrictions other than 2x SSD pushing straight to the GFX cards
Out: PSU fan, fixed at 1200 rpm in corsair link regardless of psu load; 80 mm quiet low rpm case fan running at approx 1500 rpm; 140 mm sidepanel at approx 1100 rpm drawing hot air out from gpu area.

On Big shuriken there is Artic F12 instead of the default slim fan atm. I see about 50 C temperature idle and with intel burn test running I hit straight to 70 C and then climb slowly to about 80 C (CPUID Hardware monitor), at around 75 C I start to see something that seems a lot like thermal throttling although Intel should not be doing that under ~90 C. I have not measured the air going into shuriken.

Case mods: HDD cage in 5.25'' bays in top, handle on top.
For both of our sanities, please read the "Setting up a case for optimum cooling" and "Downflow / Pancake Cooler Fan Orientation for Better Cooling"in "Ways to Better Cooling".

Sorry to offend, but looks like a royal air-blow cluster bang. While side fan may be flowing heated air from GPU out of case, it is also flowing air that could supply the F12 that is pushing air down through Shuriken .. where it hits mobo turning out, hits RAM, GPU, etc turning up past cooler and F12 to be sucked back in .. around and around we go with heat rising higher and higher .. but that's only my guess. Also, where is the F12 supposed to get it's cool air supply from. 'Out of thin air" comes to mind.
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It has no source of cool air.
Again, just playing the 'reach-a-round and grab' guess ..
Try turning your F12 over so it is pulling air out of cooler instead of pushing air in and let me know what your temps do because air will be drawn over mobo to bottom of cooler, up through cooler and F12 and out of case through side fan. Oh. take the filter off of side fan .. unless you think you need to filter the air coming out of your case into the room.
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I'm bet you a dollar to a donut they drop by 10c, maybe more .. and quit climbing after a few minutes under stress loads.
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#7 ·
Quote:
Originally Posted by doyll View Post

For both of our sanities, please read the "Setting up a case for optimum cooling" and "Downflow / Pancake Cooler Fan Orientation for Better Cooling"in "Ways to Better Cooling".

Sorry to offend, but looks like a royal air-blow cluster bang. While side fan may be flowing heated air from GPU out of case, it is also flowing air that could supply the F12 that is pushing air down through Shuriken .. where it hits mobo turning out, hits RAM, GPU, etc turning up past cooler and F12 to be sucked back in .. around and around we go with heat rising higher and higher .. but that's only my guess. Also, where is the F12 supposed to get it's cool air supply from. 'Out of thin air" comes to mind.
biggrin.gif
It has no source of cool air.
Again, just playing the 'reach-a-round and grab' guess ..
Try turning your F12 over so it is pulling air out of cooler instead of pushing air in and let me know what your temps do because air will be drawn over mobo to bottom of cooler, up through cooler and F12 and out of case through side fan. Oh. take the filter off of side fan .. unless you think you need to filter the air coming out of your case into the room.
tongue.gif
I'm bet you a dollar to a donut they drop by 10c, maybe more .. and quit climbing after a few minutes under stress loads.
biggrin.gif
Hehe. I'm not easily offended.

The link you provided this time works better for me than the ones in your sig somehow. Perhaps I had some kind of net hiccup when I first was reading these earlier tonight as I'm pretty sure I saw some kind of very small thread with just one post and couple random replies when using the link in your sig while the link you put into the reply seems to lead into a much more complete thread with just the kind of information I was looking for. It even answers one of the key questions I had - namely the one about static pressure vs CFM rating for this heatsink - seems like it makes much more sense to aim for higher static pressure than for higher raw CFM number. While big shuriken fins are only 10mm tall they are as pretty densely packed.

F12 was supposed to get the air from two intake fans in the front of the case. Basic idea was that cool air comes in from the front and then goes out from the side, back and through the PSU. At first I had the sidepanel 140mm also blowing air in but after getting more powerful GFX card it started to really cook everything in GFX cards area so I was forced to swap that to suck air out. BTW I have the filter on it to keep damn wires out of it. Although I guess I can just tape these down.

Will have to give a try to swapping the direction of F12 around and will see if that improves the temperatures.
 
#8 ·
Quote:
Originally Posted by Carniflex View Post

Hehe. I'm not easily offended.

The link you provided this time works better for me than the ones in your sig somehow. Perhaps I had some kind of net hiccup when I first was reading these earlier tonight as I'm pretty sure I saw some kind of very small thread with just one post and couple random replies when using the link in your sig while the link you put into the reply seems to lead into a much more complete thread with just the kind of information I was looking for. It even answers one of the key questions I had - namely the one about static pressure vs CFM rating for this heatsink - seems like it makes much more sense to aim for higher static pressure than for higher raw CFM number. While big shuriken fins are only 10mm tall they are as pretty densely packed.
Just tried the sig llink. Direct to first post with index to topics. Please try it again. You are the first to have a problem.
F12 was supposed to get the air from two intake fans in the front of the case. Basic idea was that cool air comes in from the front and then goes out from the side, back and through the PSU. At first I had the sidepanel 140mm also blowing air in but after getting more powerful GFX card it started to really cook everything in GFX cards area so I was forced to swap that to suck air out. BTW I have the filter on it to keep damn wires out of it. Although I guess I can just tape these down.
Airflow is not a cfm or a static pressure rating thing. It's a balance of the two. It's like a car engine using more horsepower than a big truck engine using more torque. Car might accelerate faster but torque is what holds the speed climbing the hills. Either way, having some in reserve just in case it's needed is always nice.
Will have to give a try to swapping the direction of F12 around and will see if that improves the temperatures.
Yeah, do try it. It's not a hard thing to try, costs only a few minutes, and is easy to undo if it does not help.
I always monitor cooler intake air temp when testing a cooler. Room air temp or case intake mean little. It is not uncommon for bench testing to have a difference between cooler intake and room temps.
 
#9 ·
Removing the dust filter from the exhaust 140mm fan on sidepanel seems to have dropped the temperatures approx 3 C for the CPU and approx 6 C for the GPU when idle. Under max load the results are even better with max temperature approx 10 C lower hitting approx 70 .. 72 C. And that is without flipping the fan around (have not gotten around to that just yet).

I'll have to get wire grill for that fan though probably because as its a mobile system some cabling is getting uncomfortably close to the fan blades. I taped some of the wiring down that tended to touch the fan blades without the dust filter when putting the sidepanel back.

Also - it seems the CPU is no longer thermal throttling as intel burn in test number creeped from shaky ~65 GFlops to pretty consistent 73 GFlops.
 
#10 ·
Quote:
Originally Posted by Carniflex View Post

Removing the dust filter from the exhaust 140mm fan on sidepanel seems to have dropped the temperatures approx 3 C for the CPU and approx 6 C for the GPU when idle. Under max load the results are even better with max temperature approx 10 C lower hitting approx 70 .. 72 C. And that is without flipping the fan around (have not gotten around to that just yet).

I'll have to get wire grill for that fan though probably because as its a mobile system some cabling is getting uncomfortably close to the fan blades. I taped some of the wiring down that tended to touch the fan blades without the dust filter when putting the sidepanel back.

Also - it seems the CPU is no longer thermal throttling as intel burn in test number creeped from shaky ~65 GFlops to pretty consistent 73 GFlops.
Good news!
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Even a grill will lower airflow a bunch.
Good cable management is key. Did you know ebay has velcro strap in widths from 10mm (3/8") wide up to over 50mm (2") wide available in rolls form 1m to 25m long? Can be had on ebay here; 10mm x 1m is £1.65 delivered. Cut pieces to length you need with scissors.
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#11 ·
(sorry for thread jacking) Having a noob moment: I have an i5 4460 (lga1150) and am changing to a wall mount for thermal and vanity rteasons and was wondering about the scythe big shuriken rev b, firstly (heres the noob bit) does this cooler even support lga 1550?
Ive seen it listed as 775 and 2011 but pc part picker said it was compatible?

secondly the TDP is stated differently across the severall websites and i just wanted to check my measly 4460 would be kept cool in there.
Thankls in advace.
Tom
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#12 ·
It will fit LGA1150 and it will be fine for i5. Although it might be advisable to use 25mm thick fan if space permits as the default slim one goes to a bit too high rpm in my opinion to be really "quiet". Going with 25mm would allows you to get away with approx 1200 rpm for your i5 which should be practically inaudible. You can ofc pick something like up-to 1600 rpm or so if you have particularly hot summers (it should ramp down as long as temps are ok).
 
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