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Fan wont spin on AX850.

post #1 of 10
Thread Starter 
Okay, so I got my other AX850 in today, and for some reason the fan wont spin. Got my 580 clocked at 925/1850/2200 running FurMark and my 2600k running 4.7Ghz.

1.25v on GPU, and 1.36v on CPU.

Is this normal? Because my last one would usually start to spin by now and I want other opinions to are to see if I really need to RMA.

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post #2 of 10
Does it feel warm around it?
My AX750 fan doesn't start up until it gets warmer.
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post #3 of 10
The fan should only spin-up when it's needed; Corsair's AX line is based off Seasonic's X series - which keep the cooling passive unless needed.
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post #4 of 10
Thread Starter 
Quote:
Originally Posted by Ovlazek View Post
Does it feel warm around it?
My AX750 fan doesn't start up until it gets warmer.
Right as I read this it kicked on lol. Yeah it was getting pretty warm then I guess it finally decided to kick on. My last one would usually kick in sooner and stay running so I guess you could say I never really noticed it till I put the new one in.. xD

Sorry guys, ill get this closed.

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post #5 of 10
Do you have an idea of power consumption?
The AX850's take a fair amount of load to start spinning.

Jonnyguru didn't get theirs to spin till a load of 475W, which I'm not entirely sure you're drawing.

http://www.jonnyguru.com/modules.php...tory3&reid=197
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post #6 of 10
My AX1200 will not spin up till both my 6970 and gtx 460 are folding and cpu hits 20% usage. I know it is a different platform then the other AX PSUs but there is no need until higher load, as the PSU is so efficient, less heat is created.
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post #7 of 10
Quote:
Originally Posted by banthracis View Post
Do you have an idea of power consumption?
The AX850's take a fair amount of load to start spinning.

Jonnyguru didn't get theirs to spin till a load of 475W, which I'm not entirely sure you're drawing.

http://www.jonnyguru.com/modules.php...tory3&reid=197
This was recently reported as an issue with X650s and X750s IIRC.
People who didn't need such powerful units were overheating theirs because the unit wasn't drawing enough to kick the fan on, but was still overheating without a fan.

Regardless I'd still check, since that 850w unit isn't being pushed hard at all.
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post #8 of 10
I thought only the Seasonic X models had fans that only spun up when PSU usage went over a certain amount?

Either way, as others have mentioned its probably this, its nice to get a timely reminder every now and then your PSU is still working when it twitches on for a second or two
post #9 of 10
Thread Starter 
Quote:
Originally Posted by candy_van View Post
This was recently reported as an issue with X650s and X750s IIRC.
People who didn't need such powerful units were overheating theirs because the unit wasn't drawing enough to kick the fan on, but was still overheating without a fan.

Regardless I'd still check, since that 850w unit isn't being pushed hard at all.
I thought that it would start once it reached a certain temperature? If that's the case, then that'll give me a reason to buy another 580... Haha

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post #10 of 10
Quote:
Originally Posted by RussianJ View Post
My AX1200 will not spin up till both my 6970 and gtx 460 are folding and cpu hits 20% usage. I know it is a different platform then the other AX PSUs but there is no need until higher load, as the PSU is so efficient, less heat is created.
That's weird, because the AX1200 isn't advertised as having, nor supposed to have a fanless mode. Unless Corsair asked Flextronics to implement it later. In reviews there is no mention of a fanless mode.
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