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Top 5 Budget PSUs - Page 3

post #21 of 58
We stock the Earthwatts 380W at work (at my recommendation, I might add).

Excellent PSU for low- and mid-range systems.
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At long last...
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post #22 of 58
Quote:
Originally Posted by KingT View Post
Yeah I have noticed that there are two different OEMs..

Can that CM GX 450 really deliver promised 32A on 12V+ rail and not to overheat and drop efficiency below 80% ??

CHEERS..
Yeah.
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post #23 of 58
Any reviews on that CM GX450 ??

CHEERS..
     
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Hitachi Deskstar 160GB (7200,8MB) LG DVD Win 7 Ultimate 64bit build 7601 LG 19" 
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post #24 of 58
http://www.jonnyguru.com/modules.php...tory3&reid=231

Apart from a low +12v, and crossloading issues (not a problem for modern rigs)... it's decent-ish.

Edit: Another from kitguru: http://www.kitguru.net/components/po...don/cmgx450/6/
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post #25 of 58
Thanx man..

Rep+

CHEERS..
     
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Hitachi Deskstar 160GB (7200,8MB) LG DVD Win 7 Ultimate 64bit build 7601 LG 19" 
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post #26 of 58
I just built an HTPC with the Corsair CX430 and I don't know if I can in good conscience recommend this thing. I got it because of my positive experience with the AX850, but I don't know.

The first one I got was around the price point above, like $45. After a couple days I noticed when I powered the computer down but left the PSU on, it would scream/whine, noticeably loud too. So I RMA'd it. I live in Canada, so it was $25 to send it to Corsair, which I find ludicrous because I was shipped a crap unit and it wasn't my fault. I got the replacement and it was the CX430 v2, apparently. However, I've just noticed that the whine is back, only slightly less audible. If you know it's there, you'll always hear it, but if you aren't provoked you could just think your ears are ringing vs. the CX430 I had before where you heard that whail no matter what.

I've got no power issues with the build or anything, and it performs fine as a PSU, but I don't think I can recommend this to anyone given this unfortunate side effect. The whining stops if you power off the PSU as well, but I find that a bit of an inconvenience. I may be the minority there, though, but I've never had this issue before. To be honest, my AX850 whines a bit as well and I don't know if I want to try an RMA for fear of another $25 ship.

Phaedrus: is it normal for PSUs to do this? I've only experienced this with Corsairs, but then again I only checked for it when I had Corsairs sitting around. I know in the JonnyGuru review on the CX430 he points out the poor capacitors on it, and I've been told on OCN that the capacitors are generating the whine. Any input? Would the Antec NeoECO or the Earthwatts have this problem?

EDIT: According to Phaedrus, for those that don't want to take a jaunt a post down, the banshee wail being emitted from my PSU is termed "coil whine" and it sucks. Post below offers a solution. Other than the whine, I've got nothing but positive things to say about this PSU.
Edited by CasanovaFly - 4/20/11 at 12:15pm
post #27 of 58
Thread Starter 
It's called coil whine, and for some reason everyone seems to be having issues with it all of a sudden. I don't know if it's always been an issue but no one noticed because their computers were louder, or if it's something just happening recently due to some change in manufacturing practices or something. But it's everywhere now, and everyone's complaining.


Coil whine is annoying, but says nothing about the quality of the power supply, it isn't indicative of damage or failure or anything like that. It's just the coils on the inductors/transformers working slightly loose and vibrating. You can fix it by covering the inductors in question with a non-conductive lacquer (non-metallic nail polish is a cheap solution) which will lock the coils in place, but opening up the PSU to do so will void your warranty.
post #28 of 58
Quote:
Originally Posted by Phaedrus2129 View Post
It's called coil whine, and for some reason everyone seems to be having issues with it all of a sudden. I don't know if it's always been an issue but no one noticed because their computers were louder, or if it's something just happening recently due to some change in manufacturing practices or something. But it's everywhere now, and everyone's complaining.


Coil whine is annoying, but says nothing about the quality of the power supply, it isn't indicative of damage or failure or anything like that. It's just the coils on the inductors/transformers working slightly loose and vibrating. You can fix it by covering the inductors in question with a non-conductive lacquer (non-metallic nail polish is a cheap solution) which will lock the coils in place, but opening up the PSU to do so will void your warranty.
Well said..

I have to give it up for you man for doing such a excellent job..

Rep+

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Hitachi Deskstar 160GB (7200,8MB) LG DVD Win 7 Ultimate 64bit build 7601 LG 19" 
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Hard DriveOptical DriveOSMonitor
Hitachi Deskstar 160GB (7200,8MB) LG DVD Win 7 Ultimate 64bit build 7601 LG 19" 
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post #29 of 58
I'm gonna have to suggest OCZ ModXstream Pro series. Dirt cheap, almost always on sale, almost always have MIR (ocz is quick and fast with MIR) and you get higher power, modularity and 80+ certified. I picked up my 700w for $54, the 600w was $46 and the 500w was $39. They usually don't get this low all the time but they are always just a few dollars off from that on sale.

NCIX.com has the best deals on ocz PSU's usually and I use them for most of my budget builds or light gamers.

The 700w actually broke the under $50mark once at $48 for a 700w modular 80+ PSU.

Definitely one of the top budget PSU's out there.
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M06
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WD Blue 500GB WD Black 1.5TB Crucial M4 128GB (OS) LG ODD 
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Sharkoon Tactix OCZ ModXstream Pro 700w Modular Corsair 300R CM Storm Xornet 
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post #30 of 58
Quote:
Originally Posted by Phaedrus2129 View Post
It's called coil whine, and for some reason everyone seems to be having issues with it all of a sudden. I don't know if it's always been an issue but no one noticed because their computers were louder, or if it's something just happening recently due to some change in manufacturing practices or something. But it's everywhere now, and everyone's complaining.


Coil whine is annoying, but says nothing about the quality of the power supply, it isn't indicative of damage or failure or anything like that. It's just the coils on the inductors/transformers working slightly loose and vibrating. You can fix it by covering the inductors in question with a non-conductive lacquer (non-metallic nail polish is a cheap solution) which will lock the coils in place, but opening up the PSU to do so will void your warranty.
Thanks for the quick explanation. This is unfortunate. It's definitely not as loud as before, but maybe I've got that to look forward to? I suppose if it gets louder I'll void the warranty anyways and try your solution. Worse comes to worse I can buy another one for slightly more than RMA'ing it (or attempting to).

I agree that this is a new thing. The whine from the CX430 was noticeable; enough so that I RMA'd it. So now I guess I'm stuck listening for it. My life is ruined by coil whine!

Thanks though, you cleared that up really quickly and prevented a few future RMA's. Why aren't you a mod yet?
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