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 Choosing The Right PSU, Discussions about power supply units.

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Kataro
post Dec 2 2006, 09:20 PM

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Good resource yehlai. This will clear most forumer question regarding PSU and it is a guide for purchasing PSU as well. biggrin.gif
Kataro
post Dec 3 2006, 10:11 AM

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Yehlai, maybe you can also list out those decent PSU brand and their model that worth to buy. Just my opinion. wink.gif
Kataro
post Jan 1 2007, 07:12 PM

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QUOTE(Nemesis181188 @ Jan 1 2007, 05:22 PM)
I wanna ask a question.My psu which is a cooler master 430w doesn't have what we call that cable that connects to a graphics card which i heard.So if just say i want to upgrade my gc which needs the cable,must i buy a new psu or is there any cable which could be bought and just simply added to the wires so that i could connect it to the gc?
*
Do you mean the cable that connect to PCI-e card? If yes, normally the gc will include the connector which you can connect to molex and then connect to your gc IIRC...correct me if I am wrong... biggrin.gif
Kataro
post Jan 13 2007, 03:37 PM

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QUOTE(chickenducksoup @ Jan 13 2007, 03:03 PM)
hi all.....
i just brought i coolermater 550w psu
but i found out thaton the 24pin , there is missing 1 pin.
that mean total is 23 pin only.1 is missing
is this factory QC mistake ?

anyone there using PSU with missing 1 pin from the 24pin with no problem?

thank
*
If not mistake, that's normal lar...one pin not using...correct me if I am wrong...biggrin.gif
Kataro
post Jan 15 2007, 07:56 PM

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QUOTE(chickenducksoup @ Jan 13 2007, 07:59 PM)
did ur enermax also missing 1 pin ?
thank
*
Yes, my enermax Liberty do not have that pin too...only 23 pin... biggrin.gif
Kataro
post Jan 15 2007, 08:02 PM

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QUOTE(afosz @ Jan 15 2007, 07:49 PM)
isnt Enermax FMA II 460W right? http://www.enermax.com.tw/english/product_...ay1.asp?PrID=53
how much is it?cant seem to find it in the pricelist (C-Zone, PCZone, Cycom, Sri, ViewNet)
*
Actually pczone got...but they put it wrongly as Liberty...you go to check again pczone pricelist there...the one write there Enermax Liberty 460W / 500W, that 460W actually is FMA II 460W...they did not change it until now since few month ago after someone in this forum ask about it IIRC... doh.gif
Kataro
post Jan 15 2007, 08:09 PM

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Wanna ask a question about my Liberty 400W... notworthy.gif

Attached Image

As shown in above attachment, my +12V reading is only 11.19V, is it normal (from what I read untill now, it is not normal, isn't it?)?
My spec is as my sig below and 2 penaflo exhaust fan, 2 PSU's fan as intake and 1 hard disk cooler...
I have ordered my PCI-e 7600GS from forumer here...I wonder will my PSU can give enough juice to support it? futhermore, I will upgrade my ram to DDR2 667 1 or 2GB in the near future...so I afraid my PC will not be able to boot if I have that spec... sad.gif

Any idea? Please give your comment... icon_question.gif Thanks... notworthy.gif

This post has been edited by Kataro: Jan 15 2007, 08:11 PM
Kataro
post Jan 16 2007, 10:35 AM

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QUOTE(yehlai @ Jan 15 2007, 08:27 PM)
Check Zamree7 bulk.
12V rails fluctuate about +/-5% is normal.
*
5% of 12V should be 0.6V right? but my almost of time it stay at 11.19V, the different is 0.81V, so still consider normal? Before I change to Pentium D 820, the +12V is at 11.49V... so in case I add in Palit 7600GS PCI-e, and 1or 2GB DDR2, it still can handle? I hope it can, otherwise I will need to change PSU again... doh.gif

Anyway, thanks for the reply... notworthy.gif

QUOTE(afosz @ Jan 15 2007, 08:31 PM)
Enermax Iron Max 460W RM279 hmm.gif

thanx a lot notworthy.gif
*
You are welcome... laugh.gif
Kataro
post Jan 26 2007, 12:21 AM

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QUOTE(hongchiang @ Jan 25 2007, 10:09 PM)
yea lo..
i am also not sure..
sometime ok sometime not...
and my board bit sensitive..
what i mean is that sometime syok syok cant detect harddisk, stated disk boot failure..
need plug out and plug in power cord then only can..
last time using MSI KT6 board no problem one...cap PSU can oc to 200FSB..
lol..
now change LANPARTY change PSU the rest use back the same..
then some problem arise...still thinking wat problem..
will consider the silverstone... notworthy.gif
*
I think is your psu problem lar...not the board problem...try test with other psu if you have one ... or borrow your fan psu to test... wink.gif
Kataro
post Feb 1 2007, 08:01 PM

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QUOTE(kunyit_kampung @ Feb 1 2007, 06:49 PM)
only have 1 80mm fan,mine is GTS not GTX.........yeah i think i have to buy new psu also coz sometime when playing game on highest setting my pc just restart dammm
*
Ya, you PSU is overloaded...change it fast...btw, before you able to get the new PSU, change your proc to stock clock, from calculation via PSU calculator, your OCed proc use up to 130W which is about double of the power it use on stock...correct me if I am wrong... laugh.gif
Kataro
post Feb 21 2007, 07:44 PM

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QUOTE(mashimarow @ Feb 21 2007, 09:32 AM)
rootified:
Watt is only used as a guideline when you purchase PSU, when calculated which required 220W, then , you need to find a 300 or 350W to cope with your current system.  However, modern system now consume 12V amp more than 5 years ago system which rely on 3.3V and 5V.  Therefore, those cheap PSU which shows 400+W have very high 3.3V and 5V but look at 12V rail, it is not even 20A shocking.gif
When you plug in a power required g/c, it drain power from PSU, but your other system also require 12V, HD,CPU,mobo all needs 12V, after 2-3 hours play, you suffer strange behaviour, you system can slowdown, you display seems flashing, your HD seems reading more and more slowly or even BSOD randomly.  sweat.gif Geez..I talk a lot sweat.gif

Acbel 350W has a detachable 24pin plug which means it is a 20+4 pin, I am using one if you read my sig and my mobo sure is many years older than yours.  Coolermaster don't have detachable 24pin plug, you need to buy a 24->20pin convertor.  The extra 4pin is for PCI-E board.  That's why some entry/mid level PCI-E don't need extra power because you already supply it with the 4pin on mobo.[/cool.gif

[b]lamely_named:

8800 is a power hunger, a typical C2D equip with 8800GTX require 550W and if you use SLI, you certainly need 1000W PSU. Noted that 8800GTX(GTS only need one) need two 6pin molex and only 1000W supply supply 4 6pin molex. For your 700W PSU, think you can SLI GTS version.
*
Is it true? Why my mobo have PCI-e only use 20 pin? unsure.gif

Kataro
post Feb 26 2007, 12:43 PM

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QUOTE(mashimarow @ Feb 21 2007, 08:44 PM)
Yours is a AGP/PCI-E board right? The board mainly is for AGP slot with PCI-E as extra for future use.  It is also great for people to switch to 775 socket to try out duo core while retain his AGP card, RAM and PSU.

Yours is a special case blush.gif

Addition note : AGP is dead since 6 series card, but they keep it alive by adding a bridge chip to decode PCI-E signal to AGP. I didn't see the architech built out of your Asrock, I believe it is using the same technology. Correct me if I am wrong whistling.gif
*
So does it mean my PCI-e will not run at 16X, but run at 4X or 8X...as I can see from CPUz, the graphic transfer rate is only 4x while the max it support is 16x...don't know why... rclxub.gif unsure.gif
Kataro
post Feb 26 2007, 04:28 PM

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QUOTE(vassalle @ Feb 26 2007, 04:11 PM)
Hmm.. but from the pic i posted above, max of 300w from 12v translates to 25A. Just slightly below the recommended 26A minimum. Arrgghh.. Need to shell out some money for a new PSU. Dangg..

If i need to change, i'm planning to get the Seasonic S12 Energy+ 550W PSU. It has some 41A 12v rails. Is it an overkill?
*
I think it is not overkill as it will be sufficient to support in case nVidia come out with another more power hunger gc in the future or in case you wanna add more hardware such as hdd, optical drive, high amp fan or what ever you name it... icon_rolleyes.gif
Kataro
post Feb 26 2007, 05:00 PM

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QUOTE(Clavicus @ Feb 26 2007, 04:52 PM)
My PSU has 2 four-pin connectors labeled "for CPU only" and the mobo connector is 20-pin. Currently four pins are empty on the mobo. Should i connect the extra four-pin connector in? So far no reboot problems..
*
You mean you have 24-pin on mobo but your mobo-connector is 20-pin or ?
Kataro
post Feb 26 2007, 08:23 PM

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QUOTE(Clavicus @ Feb 26 2007, 07:49 PM)
Yup. 24 pins on mobo but only 20-pin mobo connector. There's a space 4-pin that's labelled for CPU. so should i connect it?
*
hmm.gif abit hard to determine your actual question...do you mind to post the mobo and psu you uses? icon_rolleyes.gif
Kataro
post Mar 1 2007, 09:23 AM

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QUOTE(Clavicus @ Feb 28 2007, 06:53 PM)
Im using Enermax FMA II 460W and Asus M2N-E.
*
IC. The Enermax FMA II 460W does not have 24-pin for the mobo connector ar? Any FMA II 460W user, is it true?

As for the extra connector for CPU, you do not need to plug in as your mobo only need to plug in one. icon_rolleyes.gif
Kataro
post Mar 1 2007, 03:07 PM

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QUOTE(Clavicus @ Mar 1 2007, 01:57 PM)
Yup, 20 + 4 pins for mobo. So do i need to plug the 4-pin?
*
Yes, you need to plug in the 4-pin... it design to be 20+4 pin is so that mobo with only 20-pin can use...when use on 24-pin mobo, then all 24-pin should be plug in... icon_rolleyes.gif
Kataro
post Mar 12 2007, 10:44 PM

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QUOTE(eastherd @ Mar 12 2007, 04:13 PM)
hehe ... might think about OCing after 1 year, neway thanks for the info makes me know so much about PSU...
*
If you consider OCing and consider to add few more hardware in near future...better get Liberty 500W or 620W... but I think 500W is enough lar...anyway...need to suite your budget too... icon_rolleyes.gif
Kataro
post Mar 13 2007, 08:20 PM

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QUOTE(eastherd @ Mar 13 2007, 01:42 PM)
I think... for those who admire PSU that looks good and have cable management with limited budget need to think a lot before actually decide to buy the PSU...

need to recheck ur system power requirements...
*
are you very urgent in getting the psu? if not, why not wait for another month and save another hundred or more and get the Liberty 500W, then should be no problem even if you upgrade some little more hardware and OC... just my opinion thought... icon_rolleyes.gif
Kataro
post Mar 19 2007, 02:16 PM

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QUOTE(eastherd @ Mar 14 2007, 09:54 AM)
Are you serious??? Liberty 500watt price going to drop??? Currently the price is around Rm430... So any prediction on the future price.?? drool.gif .. later i can save my money... icon_idea.gif

I planned to get the liberty 400watt, since it doesn't have enough juice to power my rig in extreme use, I leave the liberty 400watt behind... " I WANT A NICE PSU" arrrgghhh vmad.gif


Added on March 15, 2007, 10:07 amCan anyone comment on this PSU... if I buy from this guy... thanks

the  link:

http://forum.lowyat.net/index.php?act=ST&f...0#entry10761625
*
aiyo, nolar...what I mean is, you save money for another month then you have another hundred or more to buy the Liberty 500W lor...I not mean the price will drop... sweat.gif

You can buy from that guy if you want, but seem he not reply for very long time liao and yet he saying that he want to sell it urgent... doh.gif

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