Choosing the Right Power Supply

ex_forum_user_3

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Sorry to say, even when it has the MSI logo....it's still a split rail and I would NOT buy it myself.
PS, it's only MSI USA that sells PSU's to my knowledge.

If it works it works, but I wouldn't buy it.....sorry MSI USA :lol_anim:
 
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Falcon1620

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Ahh I wish that I had come across this article sooner. I had to learn the importance of choosing a good power supply the hard way. I built this awesome gaming rig, a brand new P4, MSI Neo 3 board, and it was loaded. Well I brought the computer up to school with me here where the power is kind of flakey and old and yep I fried almost every piece of hardware on the computer. I RMA?d the board and waited the long wait to get a new on. Guess what? my processor was toast as well, so it just blew the board up as soon as it came in?. Shortly after that incident I had another PS blow up and almost catch the house on fire?. Needless to say, I check the power supply ratings carefully and choose good power supplies from Thermaltake Antec and Enermax and I have not had a problem with computers since. It was a tough lesson to learn and almost cost an insurance policy. Be sure to not only check the PS ratings, but the safety features that will protect your precious expensive components, and your property. I have never failed to overlook a power supply again : ) I recently ordered an Mbox barebones for a new server (finally after almost a year!) to get my personal web server running. The Mbox comes with an Austin PS but I will be replacing that with a quality Enermax to ensure that I don?t ever have a blown PS wrecking my day ever again! Do yourself and your customers a favor and put a good PS in there! It?s something that should not be overlooked and you will be glad to have a stable reliable computer, if I hadn?t overlooked the PS when I built my computer I would have easily saved thousands of $$$$ I think that the ratio of about $140 to $2000 is an easy choice.  :rolleyes_anim:
 

Frankenputer

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I also recommend that you get a UPS, uninterruptible power supply, especially if you bring a computer to a dorm or whatnot.  Not only will a UPS clean and regulate the power coming into your system, it will help protect it from surges and drops better than the best power strips and will keep the machine running in a power outage which will  allow you to shutdown your system properly in a blackout.
 
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Falcon1620

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;) Yes I also purchased a UPS after that little incident?. It has saved me a few times with a tripped breaker while typing some assignments.  :rolleyes: It annoys my roommate though when it trips and beeps but at least my expensive stuff is protected?Which is more than I can say for all of the laptops, computers, and TV?s that are plugged in here. It?s a short lifespan on electronics in this building if they are unprotected. I?ve had to fix countless computers with (GASP!) Blown PS?  :noidea: Plus the local computer shop has some pretty decent UPS's here for around $35 so you can't beat that. Ahh live an learn, fortunately I have had some stable power up until this point here (Spoiled)
 

bobolink1970

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Since I am upgrading my system with a new vid card, a MSI 7900 GTO, I thought it would be wise to purchase a new PSU also.
Actually there are 2 PSU's that I already have in mind:

1. Enermax Liberty DXX 500 > http://www.enermax.com.tw/english/product_Display1.asp?PrID=4
2. Be Quiet Dark Power Pro-530W > http://www.be-quiet.net/be-quiet.net/index.php?action=td&StoryID=21

As you can see both PSU's are modular ones....is there anything that speaks against modular PSU's?
Are these PSU's ok, which would be the better choice or what other (modular) PSU's would you recommend for the following setup:

Intel Core2 Duo 6400 @ 2x 2.13 Ghz
Zalman CNPS 8000
2x Aeneon 1 GB @ 667 Mhz (4-4-4-12)
1x WD 250 GB IDE
1x NEC DVD-RW
1x LG DVD-ROM
MSI 7900 GTO @ 7900 GTX

I hope you guys can help me to buy the right PSU for a change.... ;-)

Thanks in advance,
Bob
 

tnt1

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The Enermax Liberty Power Supplies have some very good reviews. I had decided on the Enermax Liberty or the Corsair I ended up purchasing. It came down to I found a very good deal on the Corsair.

I have never heard of the other supply so cannot comment on it.
 

bobolink1970

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So I don't need to worry about the fact that this Enermax PSU is a modular one??

The thing is that I've read an article posted on this forum basically saying that modular PSU's are crap. Unfortunately I cannot find this post / article anymore, I think it was from a certain PSU brand that I don't know and don't recall....
 

vernonion

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I think this is the article you are refering to, specifically item 3.
http://www.pcpower.com/technology/myths/
 

bobolink1970

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Thanks Vernonion!
Yes, that was indeed the article I had in mind!
But is this info still accurate? Is it really a bad idea to buy a modular PSU? I really want to buy this PSU and all the tests I have seen are very positive >>
Enermax Liberty DXX 500 > http://www.enermax.com.tw/english/product_Display1.asp?PrID=4

 

vernonion

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Why would it change, even stereo buffs insist on gold plated connectors to eliminate noise in their speakers. If you have enough amperage I guess you could reach a point where modular connectors made no difference. I have heard that the Enermax that you are looking at is really a single rail, but they do not really published that anywhere so how do you really know what you are getting? At the end of the day you don't really know if it will work with your particular set up until you or someone with your exact same setup trys it and has no issues. Just remember that the 7900GTO graphics card and minimal equipment will need 22 to 26 amps and you can't always add two rails together to get that. Then add more for extra drives, fans, usb devices, lights and resistance across modular plugs and you see where this is heading.
 

kleefarr

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Ah, just the topic I was looking for.  ;D

I have just upgraded my brother in laws mobo, cpu and ram from a MS6511 mobo to a MS865GM2 mobo. It starts and stops in seconds, sometimes the heatsink fan spins once and it stops.
Having read through this thread I suspect that the eight year old PSU is not giving enough juice..

It's a FSP 300-60PNA
3.3v - 15A
5v - 30A
12v - 15A

I have upgraded it to a 2Ghz Celeron with 1Gb of ram and a 512Mb Graphics card. I guess I should go for an Antec 500 orsomething?

Kevin

(Disregard the info in my sig as this is my brother in laws)
 

Frankenputer

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Energy saving tip #2, put your machine in hibernate or shut it down if it isn't being used for long periods(many hours) of time.
 

rhradacut

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I have my machine folding 24/7 but I shut off the monitor when not using it for anything else.
 

One-go

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u cant beat this PSU:

http://www.pcpower.com/power-supply/silencer-750-quad-crossfire.html


actualy its must be named not 750W , but 825W. as long 825W is Peak for this PSU, and 750W continuous.
and its have 60A on +12V (single rail) continuous /its bout 66+A peak, more than my OCZ 1010 GameXsteram have on combined 4 ralis. (20A peak on each rail, or 66A peak combined)
 

Twaggie3

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Hi, I came here looking for a power supply calculator for this motherboard and a dual core 3.0GHz 2GB ram 1 sata hard drive and a 8600GT Extreme graphics card. I will use this for small games but mostly work.
The link  ... http://www.jscustompcs.com/power_supply/ ... is not working for me.
Thank you MSI forummers, have a nice Christ mas ... is Noah's Ark on the Mountains of Ararat in Turkey...I think it is.
 
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Henry

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Just go by this:  https://forum-en.msi.com/index.php?topic=104805.0  ;D

"Don't need no stinkin' PSU calcalater"
 

Frankenputer

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But remember, those recomendations are for a minimal system(and covering an array of CPU requirements).  If you have multiple PCI/PCIe cards, multiple HDDs and multiple ODDs, special lighting, more than a couple of fans, or other additions, you may want to pad the amp requirements.
 
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