PSU mod

kookooshortman55

kookooshortman55

New Member
I have the Cooler Master Extreme 500W PSU. I've read good reviews about it's power, but not it's fan. I'm not looking to buy a new PSU, the power specs are perfect for my build, and I only plan on putting up to an 8800GT into this computer. But I've read how some people have had their PSU's fan hit the fan grill and burn out the fan. I've also noticed that the smart fan has a badly placed temperature sensor and because of this, runs 100% all the time. I was wondering if I could buy an after market case fan and replace the fan in my PSU. I know about the warranty and the risk of shock, I was just wondering if this was possible and if so, how to replace it.
 
ive recently opened up a psu, i believe u can, but looks really hard to reach the circuit board and i fink u have to solder it on
 
Or you could get heat shrink tubing and clip the old fans wires a little ways up, and that way if its a tight squeeze, it'll be easier to solder the wires to the wires and then put the heat shrink tubing over it.
 
Well I've been watching some YouTube video on how to replace it (haha). So if someone got me a fan I would be able to put it in, but now I don't know which fan. The one on my PSU has a thermal sensor that is zip-tied to the heat sink. It overpowers every single component of my computer in terms of noise, but it does keep it very cool. I was wondering what kind of a CFM I would need for one. I've heard that the Scythe's are good.
 
Okayyyy anyway I found this fan for the PSU. I think I'm just gotta cut the wires, tie them around each other, and then either electrical tape or shrink tubing. With the money for a soldering gun I could buy another one of these PSU's. Although after the fan noise I don't really want to.

http://www.newegg.com/Product/Product.aspx?Item=N82E16835185058

What do you think about the flow rate? This had the best reviews in terms of noise and that's all I care about.
 
yea i had those before quite good.
just don't try to control them with a fan controller of some sort.
the engines seem to make more noise when you slow them down.
 
You might be able to move the heat sensor to somewhere more cooled. I haven't done it before, but I've heard success with it.
 
Do NOT get a sleeve bearing fan for the PSU. First of all, sleeve bearing fans cannot run horizontally for extended periods of time without burning out. Second, sleeve bearing fans die out quickly in hot environments (your PSU). If you want to go scythe, go for their S-Flex lineup with Sony FDB bearings.
 
ive done it before, its easy as long as your current fan is screwed in. just unscrew the screws on your psu and put the fan in.
also note that i left the fan wire running through a 4-pin molex connector, and made sure it wasnt touching anything important.
i actually got electrocuted by one before, because a heatink inside the psu had current running through it, god knows why. the shock isnt quite as bad as an outlet but you'll live lol..

MAKE SURE YOU UNPLUG THE PSU! that'll prevent you from getting shocked lol

oh, and yea it voids the warranty, but how long is the warranty anyways right? why is it that a part dies 1month after the warranty is up all the time lol
 
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Wow tons of responses this time. Haha thank you diduknowthat, I will look for a better fan. I was just looking for the quietest one. And to Intel_man, I read about people moving the fan sensor and said the fan got a little quieter but I figured if I'm going to void the warranty I might as well get a new fan. People were also complaining about how the fan makes weird noises and sometimes hits the grill. The website says it has a stock 120mm sleeve bearing fan. I can't find the warranty info but, the power is good, it just has bad reviews because of it's fan. Well here are the 120mm fans, can anyone help me out?

http://www.newegg.com/Product/Produ...N=2010110573+1372526580+1372726538&name=120mm
 
PSUs can hold their charge for days. Also, the smallest "nick" in a wire can cause fires as the reduced diameter of the wire leads to increased resistance and heat. I would be very careful, VERY CAREFUL. 1mA (0.1A) is enough to kill you. Unplug the PSU and leave it for a day to be sure. Make sure you use proper stripping tools and solder the connections (or use 240V rated connectors. Don't make connections with both hands as any current pathway will be through your heart.

I am not mucking around here, it is very dangerous inside a PSU, you have been warned.
 
To be honest mate, you are better off selling that PSU and getting your self something better. I know it sounds like a fun project, but it is dangerous and really not recommended.

I also understand that a young bloke like yourself may not have buckets of cash, but by the time you have bought the fan ($10 - $20 for something decent), bought connectors, your time and the fact that you may screw your PSU, I would just recommend replacing it and recouping some of your costs by selling it on ebay.

Sorry, i wouldn't bother with that project mate, not worth the cost or hassle.
 
That's a good point. Well then I'll just work on moving the sensor. I bought it at Fry's, it's basically a NewEgg so I bought it there because I didn't want to have to bother with shipping and handling, haha. It works fine for now, just thinking it could be better, it has really good power, just not a good fan. I can put washers in between the PSU and the grill to help with the fan hitting the grill. I don't think anyone will buy this, well I'll probably get a job this fall, Freshman year in college =/ So I'll have a better budget then.
 
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