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 Coolermaster GeminII, discuss anything this cooler here

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clawhammer
post Nov 26 2007, 10:59 AM

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54C in a hot room is already a good result smile.gif
clawhammer
post Nov 29 2007, 01:04 AM

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QUOTE(Noodles @ Nov 29 2007, 12:59 AM)
my cpu temp totally OUT ! just change to this cooler today. zzz the temp is so high
wonder wat problem im having.

using P4 3.7EE
normap 450 watt psu.
zzz

[attachmentid=350828]
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1. Are you sure you mount it correctly and with thermal paste?
2. What fans are you using?
3. Is this the load or idle temp?
clawhammer
post Nov 29 2007, 02:39 PM

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I believe those 12cm NMB fans also provide very good air flow?
clawhammer
post Nov 29 2007, 05:45 PM

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QUOTE(Noodles @ Nov 29 2007, 05:37 PM)
mycpu temp now is higher then the time im using freezer 7 pro  cry.gif
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Did you try to remount and reapply the thermal compound?
Match it with a better fan?
clawhammer
post Nov 29 2007, 05:51 PM

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QUOTE(Noodles @ Nov 29 2007, 05:46 PM)
ya, tried. i don have other fan to test sad.gif
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To test it out, you can simply put 2x high performance 92mm or even 80mm fans onto it. If there are no fans then it would be a bit tough sad.gif
clawhammer
post Nov 29 2007, 06:11 PM

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QUOTE(Noodles @ Nov 29 2007, 06:00 PM)
hehe, the fan blow down the heat release by the heatsink
when i touch the display card btm, it is very hot  wink.gif
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I think you should leave the side panel open and it helps.
clawhammer
post Nov 29 2007, 06:35 PM

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I guess it's probably the mounting smile.gif

clawhammer
post Dec 1 2007, 10:24 PM

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How much does the Freezer7 Pro cost?
clawhammer
post Dec 2 2007, 12:04 AM

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Hmm, I got my GeminII for RM125. If only I know about it, I'd probably consider this Freezer biggrin.gif
clawhammer
post Dec 2 2007, 11:25 PM

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GeminII S is suppose to be the lower or higher range?
clawhammer
post Dec 4 2007, 05:13 PM

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QUOTE(wodenus @ Dec 4 2007, 02:09 PM)
Um.. isn't Orthos the dual-core version of Prime95 ? or a dual core version anyway ?
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I have the same understanding too biggrin.gif Orthos stresses both cores?
clawhammer
post Dec 13 2007, 05:56 PM

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Ok guys, I need some help from air flow experts. I just got myself a Cooler Master 690 (the most expensive casing I've ever bought since I was never bothered to use a casing before this) biggrin.gif

I have GeminII installed and it looks like the photo below. I have 2 x 12cm top blowing out and 1 x 12 rear blowing out. The problem is, the temp is somewhat worse than my cheap casing with side panel open. I believe the air flow is not right considering the fact that the cooler is so huge and there are already 2 fans blowing through it. I read a bit on the Internet and for cases like this, it's best to use HSF where the fan blows sideways, like IFX, Ultra 120, etc.

I don't want to spend on another HSF so anyone has a remedy to the problem? Who has CM690 and care to shed some lights?

user posted image
clawhammer
post Dec 13 2007, 06:13 PM

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Thanks mADmAN but doesn't this create even more turbulence and mess up everything because too much of air in/out around the area? It's worth a try though.
clawhammer
post Dec 13 2007, 07:09 PM

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QUOTE(ocz @ Dec 13 2007, 07:06 PM)
TO be honest,the gemini II works really great.But somehow it have a contrast,i cant installed for rams at one time due to the heatpipe blocked the ram slot. sweat.gif

But the performance  after lapping is  thumbup.gif

Maybe its too big for a Matx.
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I have to agree the GeminII works great but inside the 690, it's probably choking when it comes to the air flow smile.gif
Earlier with my cheap casing w/ side panel opened, I get 24-25C idle but in the new 690 case, I get 30C. Impressively sucks.
clawhammer
post Dec 14 2007, 04:48 AM

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Ok, I re-organized the fans a bit and had those low cfm, low performance Cooler Master fans on top and rear exhaust. It isn't so noisy anymore and temps are a bit better but still worse than my cheap case with side panel open.

I thought CM 690 should give better temp since it has good airflow? sad.gif
clawhammer
post Dec 14 2007, 09:15 PM

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I know lapping would probably help but what I'm saying is this 690 gives a worse temp compared to cheap casing with panel open.
clawhammer
post Dec 15 2007, 01:25 PM

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From what I read in other forums, a good casing with closed panel is better than open casing on a cheap panel. It's alright and I guess I'll just leave it as it is smile.gif
clawhammer
post Dec 16 2007, 12:25 AM

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QUOTE(kucingfight @ Dec 15 2007, 02:03 PM)
For better air flow thru the case, place a higher pressure/cfm fan towards the rear of the case. it should be higher than the intake to create a windtunnel effect.
it also depends on the HSF used, Gemin for example needs a lot of intake air to get it to perform. IMO, an open case(cheapo or exp) has always better load temps compared to a well ventilated case. However, u'll get low downs in an open case, like higher VGA temps, poor ventilation ( obviously) and dust
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I tried that and having a high cfm fan on the rear makes it worse. The fan of GeminII is so close to the rear exhaust and a high cfm rear fan would be busy sucking air out and produces a very loud noise. Changing to a normal cfm Cooler Master temp gave better results.


Added on December 16, 2007, 12:29 am
QUOTE(clayclws @ Dec 15 2007, 03:23 PM)
Open chassis has better ventilation. That's all. I have no idea why you got GeminiII when you could get something better, but heck, "nasi sudah jadi bubur". So, unless you want to leave your CM chasis open, then be ready for a higher temperature.

The thing about GeminiII is that it's airflow is not direct. It blows unto the motherboard. The air is not directed out of the chassis. Conceptually, it cools other components on your motherboard, but Anandtech has proven that the difference is neglible. It does not do its primary job well especially with the configuration of chassis, and its secondary job is just a marketting gimmick.
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I don't think GeminII is the issue. The comparison now is:

Cheap Asus case w/ side panel open
VS
Cooler Master 690 w/ side panel closed

So it means if I get 24C idle with the cheap casing, I should get around that with the 690.

I tried swapping the fans and having low cfm fans on top and rear helps in giving better temps. I guess this is because high cfm fans creates turbulence near the area when both GeminII fans are busy blowing into the HSF. Plus, it creates a very loud disturbing noise.


Added on December 16, 2007, 12:34 am
QUOTE(ocz @ Dec 15 2007, 11:02 PM)
Not anymore,im not using gemini II anymore as the size is enormous.
Now just use lapped xigmatek S963,in terms of performance,its better 11C.
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Are you saying the Xigmatek gives 11C improvement?
Well, this is really interesting as I never had 11C improvements changing from one to another 3rd party cooler smile.gif Your load temps must be in the 30's without air cond then.
Maybe Xigmatek is really that superb or you had a bad mount on your GeminII earlier.

This post has been edited by clawhammer: Dec 16 2007, 12:34 AM
clawhammer
post Dec 16 2007, 12:44 AM

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QUOTE(clayclws @ Dec 16 2007, 12:35 AM)
Why don't you try turnng off all 3 fans (1 back exhaust and 2 top exhaust) and see if it makes any difference?
*
Good suggestion indeed biggrin.gif I think I should but for now, I'll just leave it for a bit. I have been removing everything so many times within the week, sigh. I got the Gigabyte Superb 730W and then changed to the Gigabyte Odin 550W and not to mention those fan rearrangement.

I'm getting 25C-27C idle and 51C-53C load which makes it very near to my cheap casing w/ panel opened. Solution is I had all high cfm fans at the bottom (blowing in) and rear/top exhaust fans are equipped with stock Cooler Master al-cheapo which comes with the 690.
clawhammer
post Dec 16 2007, 02:18 AM

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Cool stuff indeed biggrin.gif You're right because I'm using 1.39125Vcore now after I upped some FSB and it's giving me 55C load.

How much does that Xigmatek costs and where can I buy it?

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