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 AMD® Socket AM2&AM3 Overclocking V23, It has come!Bulldozer heat is around us.

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clon12
post Jul 16 2010, 04:15 PM

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QUOTE(selferino @ Jul 15 2010, 11:39 PM)
yeah i did, bought a Gentle typhoon fan(on my siggy), but apperently the stock fan still perform better(GT fans are way more quiet thou), so i guess i need a fan with higher cfm fan(bought the GT fan coz it has only 57 cfm, but very high static pressure, surely higher thn my stock fan), now not sure whether shud i stick to my stock fan(after i plan to lap it) or get a new fan(noise wont be a factor coz i hav sumbea, rhebous fan controller tongue.gif)

my stock fan....
Bearing Type:    Magnetic Fluid Dynamic Bearing
Rated Voltage:  12V DC
Rated Current:  0.26A (Max)
Air Flow:  90.65 CFM (Max)
Noise:  16~20 +/- 10%dBA
Speed:  1000~2000 RPM
Life:  50,000 hours
Thermal Resistance  0.092 (℃ / W)

shud i get either these  2 fans?
Scythe 120x25mm SlipStream SY1225SL12SH (1,900 rpm, 110 cfm, 37 dBA)
or
Scythe S-Flex SFF21G (1,900 rpm, 75 cfm, 35 dBA)
http://forum.lowyat.net/index.php?act=ST&f=54&t=1080565

all i noe the difference between these two fans are the bearings.
*

CFM lower better? O.O
8tvt
post Jul 16 2010, 04:16 PM

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more cfm better..
clon12
post Jul 16 2010, 04:25 PM

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Oh whistling.gif whistling.gif
I thought the one with higher price has a low cfm is better... thumbup.gif
cloudwan
post Jul 16 2010, 04:45 PM

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QUOTE(clon12 @ Jul 16 2010, 04:25 PM)
Oh  whistling.gif  whistling.gif
I thought the one with higher price has a low cfm is better... thumbup.gif
*
There is some trade offs, usually : hmm.gif
High CFM = high DBA
Low CFM = low DBA
8tvt
post Jul 16 2010, 04:51 PM

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cfm = cubic feet per minute..
so if the value bigger the bigger can flow..
came from
air speed x area

bigger RPM (rotation per minute) is not necessary has big CFM..
it's depends on fan design (blade etc)..

that's why some high end fan will rotate a little bit slow.. and no much noise but better air flow..

don't confuse with both of them..
ah_khoo
post Jul 16 2010, 04:56 PM

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QUOTE(8tvt @ Jul 16 2010, 04:51 PM)
cfm = cubic feet per minute..
so if the value bigger the bigger can flow..
came from
air speed x area

bigger RPM (rotation per minute) is not necessary has big CFM..
it's depends on fan design (blade etc)..

that's why some high end fan will rotate a little bit slow.. and no much noise but better air flow..

don't confuse with both of them..
*
d guru has spoken... thumbup.gif notworthy.gif

that's why we have noctua fan which doesn't look so gud to d eyes, have weird blades + lower rpm havin a big price tag. it's all about design... smile.gif

This post has been edited by ah_khoo: Jul 16 2010, 04:56 PM
selferino
post Jul 16 2010, 05:19 PM

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u guys forgot bout one thing, the bearing type also effect the price tag, where bearing type determine how long or hours the fan would work, tats why the 2 scythe fans hav odd price tag, one is using superior bearing even with lower cfm thn the other smile.gif
8tvt
post Jul 16 2010, 05:23 PM

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u want how many things?
motor, material, horsepower - all about design..
selferino
post Jul 16 2010, 05:29 PM

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QUOTE(8tvt @ Jul 16 2010, 05:23 PM)
u want how many things?
motor, material, horsepower - all about design..
*
haha lol! kne marah pulak, just wanna clarify ma, nnti org tanye "why lower cfm but price pricey(same brand)", tats why.
cloudwan
post Jul 16 2010, 05:50 PM

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QUOTE(selferino @ Jul 16 2010, 05:29 PM)
haha lol! kne marah pulak, just wanna clarify ma, nnti org tanye "why lower cfm but price pricey(same brand)", tats why.
*
Easy mah, just answer that fan is 3k gold plated laugh.gif tongue.gif
clon12
post Jul 16 2010, 06:59 PM

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gold plated...can move? yawn.gif
ah_khoo
post Jul 16 2010, 10:22 PM

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new find out... not stable but a new breakthru... tongue.gif

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8tvt
post Jul 16 2010, 10:40 PM

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QUOTE(cloudwan @ Jul 16 2010, 05:50 PM)
Easy mah, just answer that fan is 3k gold plated laugh.gif tongue.gif
*
some prefer bling².. what to do... design also tongue.gif
selferino
post Jul 16 2010, 11:10 PM

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wanna ask, lets say ive been OCing thru bios, n suddenly wanna changt to Overdrive, but when i open the program, all the values shown(aside from proc clock speed) looks default, the volts, HT link volts, clocks, n evertin. doesnt it suppose to load the seting automatically like in the bios settings?
zerohunter
post Jul 17 2010, 01:12 AM

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hi, i wanna ask which one is a better choice among KINGSTON value ram, CORSAIR XMS3 gaming ram and TEAM Elite DDR3? i would like to get 2x2gb to oc my rig....hehe

This post has been edited by zerohunter: Jul 17 2010, 01:12 AM
louislkw
post Jul 17 2010, 02:13 AM

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Round 1 Quick Run

Very tired, eyes cant open already..

Not much gained between 1T and 2T.

6-6-6 at 800MHz Failed

6-7-6 1T at 800MHz

user posted image

6-7-6-2T at 800MHz

user posted image

7-8-7 at 1000MHz Failed

7-9-7 1T at 1000MHz

user posted image

7-9-7 2T at 1000MHz

user posted image
8tvt
post Jul 17 2010, 08:49 AM

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zerohunter : depends on chip.. but so far all are average..
but i think this round would be team elite..

louislkw : ddr3 normally using 1T.. 1000mhz already fast.. what ram is that?
dafreak
post Jul 17 2010, 09:04 AM

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1 question, why is it always the middle timing is loosen?
zerohunter
post Jul 17 2010, 09:24 AM

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QUOTE(8tvt @ Jul 17 2010, 08:49 AM)
zerohunter : depends on chip.. but so far all are average..
but i think this round would be team elite..

louislkw : ddr3 normally using 1T.. 1000mhz already fast.. what ram is that?
*
thx for the info. i was thinking to get team elite too coz the price is quite good i think, rm145 compare to kingston rm147
8tvt
post Jul 17 2010, 10:08 AM

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QUOTE(dafreak @ Jul 17 2010, 09:04 AM)
1 question, why is it always the middle timing is loosen?
*
if u could understand this would be good.. haha
http://www.techpowerup.com/articles/overclocking/64

becoz the delay rated that way..
if u want to make higher clock.. need to loosen it..
otherwise ofcourse not stable..
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