Hello All. I hope that i have not overlooked information that has been previously posted, and if so, I apologize for my impatience or lack of diligence in searching more thoroughly.
I have several failed PC ATX PSU's from varied manufacturers, and out of curiosity, I finally opened them up to examine them.
I have noticed that in a majority of them, there is a 2200 uF 10v cap and a 1000 uF 10v cap that are bulged. The 2200uF cap is slightly larger in diameter than the 1000uF cap.
As far as I can tell, the schematic locations of these caps are common to the failed PSU's.
The PSU's all have the 4-pin 12v connector for that connects to the motherboard near the CPU socket, and the power connections are a even mix of 20 pin and 20+4 pin configurations.
My first question, what specifications are recommended for the replacement caps?
And my second question is, what may be the common cause in these two caps failing? I believe that the units all came form PC's that were not protected buy a battery UPS unit, or had very cheap power strips.
I have several failed PC ATX PSU's from varied manufacturers, and out of curiosity, I finally opened them up to examine them.
I have noticed that in a majority of them, there is a 2200 uF 10v cap and a 1000 uF 10v cap that are bulged. The 2200uF cap is slightly larger in diameter than the 1000uF cap.
As far as I can tell, the schematic locations of these caps are common to the failed PSU's.
The PSU's all have the 4-pin 12v connector for that connects to the motherboard near the CPU socket, and the power connections are a even mix of 20 pin and 20+4 pin configurations.
My first question, what specifications are recommended for the replacement caps?
And my second question is, what may be the common cause in these two caps failing? I believe that the units all came form PC's that were not protected buy a battery UPS unit, or had very cheap power strips.
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