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 Post subject: Gripe: Cooler Master, Bad; PC Power & Cooling, Good!
PostPosted: Fri Jan 23, 2009 10:41 pm 
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Although I had specified I wanted a PC Power & Cooling power supply in my new system when it was being built by a local computer company (I would have happily built my own at home, but I lacked the time as I was working 60 hours a week then), they decided to stick me with a Cooler Master eXtreme Power 600W power supply instead. I would have complained, but they had burned me so much that I didn't want to bother with them anymore. I hope that store burns down.

With my system setup - dual-monitors, HD 4780 video card, Phenom 9950 processor and running both SMP and GPU versions of Folding@home - and the Cooler Master power supply, my system was consuming approximately 550W of power, according to my UPS unit readout.

After only three months of service, the 120mm fan inside this power supply started grinding and cutting out, forcing the power supply to shut down. Three fucking months and the fan is toast. Great!

So no more screwing around: I ordered, among other items, a PC Power & Cooling Silencer 750W power supply which I just installed in my computer system an hour ago, and with the same hardware setup as before my UPS is now reporting a draw of only 430W, and that's with SMP and GPU Folding running as well.

A difference of about 120W, just by switching power supplies! Plus the PC Power & Cooling model has the added benefit of being quieter than that shitty Cooler Master one - looking beyond the grinding and shuddering fan. Ugh.

Never again, Cooler Master. This is the third product of yours that has burned me (before this, a case fan and a hard drive cooler, both of which failed after 6 months of operation), and it will be the last. I'm not even going to return this power supply of yours for the warranty. I'm throwing it away, outright, because that's what your products deserve in my eyes.


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 Post subject:
PostPosted: Sat Jan 24, 2009 10:12 am 
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I have noticed this with lower quality power supplies (I throw Cooler Master in there). They tend to take more wattage out of the wall according to UPS's.

I'm not sure if they really do, but it seems to make a difference.


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 Post subject:
PostPosted: Sat Jan 24, 2009 10:21 am 
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Efficiency is something PC P&C is good with, CoolerMaster, not so much. Not only that, but the CM PSU was operating higher in it's power rating range. The higher you go, the less efficient. This is true for all PSU's.

People who go with Rosewill, CoolerMaster and all these other low cost PSU's end up having issues and not doing what you've done, going with a good, quality PSU. They just throw another hunk of shit in their computer and think they've saved money.


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 Post subject:
PostPosted: Sat Jan 24, 2009 7:34 pm 
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I had the same exact problem with an extreme 500watt version. I didn't have the money for a new psu. so I opened it up. the nice thing is the fan isn't soldered its just a 2 pin fan wire. Bottom line its pretty easy to replace you so wanted to. Ironically I replaced it with an actual cooler master fan. the one in the PSU wasn't. It still works and the fan is quieter and the air flow coming out is cooler now.


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 Post subject:
PostPosted: Mon Jan 26, 2009 8:15 am 
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I'm having issues with the PC Power & Cooling PSUs. I just RMA'd my 3rd thru Newegg. (See my post in the help me build section under new build help desperately needed).


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 Post subject:
PostPosted: Mon Jan 26, 2009 9:13 am 
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I've never had an issue with CM PSUs.


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 Post subject:
PostPosted: Mon Jan 26, 2009 9:22 am 
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It's great to replace fans in PSU's. It can save you some money for sure. I just want folks to know that a PSU, even when unplugged, can have some residual electricity stored in it. So be very careful when working on them. Use the power of "teh g00gle" to help you with instructions on how to work with PSU's. :wink:


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 Post subject:
PostPosted: Thu Jan 29, 2009 2:58 am 
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[quote="Quakindude"]It's great to replace fans in PSU's. It can save you some money for sure. I just want folks to know that a PSU, even when unplugged, can have some residual electricity stored in it. So be very careful when working on them. Use the power of "teh g00gle" to help you with instructions on how to work with PSU's. :wink:[/quote


Agreed,I always tread lightly inside a PSU, I probably would have just scrapped it if I had to do anything than removing a few screws, unplugging a mini-molex connecter and screwing things back in. I just wasn't gonna waste a perfectly good psu on a bad fan.


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