Safety and Power Sufficiency.

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Karthik79

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Jul 24, 2017
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Total newbie.
I just bought a new case which came with a fan and PSU(500 W). The brand is reputable and trustworthy and I have no issues.
I am concerned about connecting the fan to the PSU directly.
Is it safe?
Also will the PSU handle the extra fan?
My specs are:
Intel i5 4460 3.4Ghz Quad Core.
Zotac Gt730 Zone edition-4Gb Ddr3.
Asus B85M-G Motherboard
Circle V2.31 PSU.
Toshiba 1TB.
1 Optical Drive.
HP 23vx Monitor.
On pcpartpicker the total wattage was 232W.
 
Solution
P
You will have no problem doing that. Almost ALL fans use no more than 3W or 0.25 A at 12 VDC, and any PSU power output (SATA or 4-pn Molex) can supply a lot more than that. Actually, any mobo CHA_FAN header also can supply up to 1.0 amp. So,you could connect it to either power source.

You have not given us fan specs, but MANY fans included with a case are of the 3-pin design. That is, the connector on the end of its wires has 3 holes, not 4. Such fans can get power, but NO speed control, when plugged into a mobo CHA_FAN header that is limited to using only the newer PWM Mode of control. And that is what your mobo's manual indicates it does. So bottom line, no matter which place you choose to plug in a 3-pin fan, it will always run at...
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maz199

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Mar 10, 2016
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The PSU currently in that system is actually not very good at all. It will power all your components fine but I highly recommend replacing it with a brand name PSU from EVGA, Corsair etc.
 
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Karthik79

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Jul 24, 2017
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Unfortunately,I spent a bomb on the PC and I won't be getting any more cash to spend.At the same time I don't want to destroy my PC and spend cash on repairing it.
Anyways,maz199 thank you for the suggestion.Might change up after some time.
 
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maz199

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Mar 10, 2016
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No worries.

It will last for a while but when you do get a chance to upgrade, a 500w unit would suffice. While you're at it, might want to look for a new gpu and plan an upgrade. A 750 ti is going for cheap today and you can find 900 series gpu or 300 series AMD cards going for cheap as well. Or, wait for gpu prices to stabilise.

Good luck with your rig.
 
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Paperdoc

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Oct 19, 2006
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You will have no problem doing that. Almost ALL fans use no more than 3W or 0.25 A at 12 VDC, and any PSU power output (SATA or 4-pn Molex) can supply a lot more than that. Actually, any mobo CHA_FAN header also can supply up to 1.0 amp. So,you could connect it to either power source.

You have not given us fan specs, but MANY fans included with a case are of the 3-pin design. That is, the connector on the end of its wires has 3 holes, not 4. Such fans can get power, but NO speed control, when plugged into a mobo CHA_FAN header that is limited to using only the newer PWM Mode of control. And that is what your mobo's manual indicates it does. So bottom line, no matter which place you choose to plug in a 3-pin fan, it will always run at full speed. Of course, to plug into a PSU power output connector you will need a little adapter I think, because I assume that the fan will have a "standard" fan connector on its wires. Now, I could be wrong there. Some cases come with fans that have a male 4-pin Molex connector on their wires (maybe with only 2 of the 4 pins), rather than a fan connector.
 
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Karthik79

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Jul 24, 2017
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The company is called Circle and it is widely used in India(where i come from).I figured the fan out. It has a 4-pin MOLEX connector and I directly connected it to the PSU. And yes,it runs at full speed.
 
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Karthik79

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Jul 24, 2017
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I won"t buy a new GPU soon, but is the 2 GB enough for gaming?
Could I overclock the current GPU in hand?(Zotac Gt730 Zone edition-4Gb Ddr3)
I am currently doing benchmarks tests on Heaven(Unigine) and using the MSI Afterburner.
What is the ideal FPS I should aim for?
I am currently getting an avg. of 9.3 at 1600x900-High Quality.
Anti-aliasing - x4. Also I am getting a temp. reading around 68*C.

 
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maz199

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Mar 10, 2016
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Any OC on weak hardware is not worth it.

VRAM is not the only variable to consider. You need to consider core count, bandwidth and other interfaces involved.

A good card has 1000+ CUDA cores/Stream processors and at least 2gb of GDDR5 VRAM. And a memory bus of 128bit or higher.
 
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