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ATX to eATX


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#1 hman123467

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Posted 23 December 2014 - 02:29 AM

Hello everyone I am hman123467

I am building a computer for my friend. It requires an eATX power supply (24 pins+4 pin CPU) but I only have an ATX PSU (20 pins+4 pin CPU). Would it work with only 20 pins on the 24 pin port?
Setup:
CPU: AMD Athlon 64
Motherboard: from compaq presario SR1460AN
PSU: 200W ATX
GPU:N/A (needs to be sorted)

hman out

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#2 DeimosChaos

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Posted 23 December 2014 - 01:24 PM

Hello hman123467,
To answer your question, you will need a 24 + 4 pin psu to power the board correctly. I did a quick search on Newegg for a 28 pin psu.. didn't find anything. You may have to get a specific psu from HP/Compaq since you are trying to use a Compaq board.

To expand a bit further and give some advice.
My suggestion would be to ditch the Compaq board all together. Couple reasons for that. One - if the cpu you have didn't come with that board it may not even be compatible with it. Manufacturers love to lock their boards to a specific cpu. As such making it so you have to buy a whole new computer to upgrade. (I have not researched that board so I cant tell you for sure if it supports it or not)Second - the issue with the 28 pin power connector may be hard to fix. There isn't a whole lot of those around, and the ones that are may not be of good quality. The psu is something you don't want to skimp on.
I would recommend telling your friend to upgrade to a new motherboard (one that is compatible with that cpu). You can get some decent ones for under 100 bucks. Also I would junk that psu as well. A 200w psu will probably power the very basic computer (no dedicated gpu). As soon as you want to add a graphics card it will take more power than that 200 watter can dish out.

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#3 hman123467

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Posted 23 December 2014 - 06:43 PM

The compaq computer came with the Athlon 64 though and would it still be okay to use the 20 pint with the 24 pin?

#4 DeimosChaos

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Posted 23 December 2014 - 07:00 PM

I just thought of something. When you say 24 + 4 pin is the longer connection on the board 24 + 4 pins? Or is it only 24 pins altogether ? Typically the main power is 24 pins (20 + 4) and there is an additional 4 pin power for the cpu (which will be near the cpu socket).

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#5 hman123467

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Posted 23 December 2014 - 07:04 PM

The mobo uses 24 pins for itself and 4 pins for the CPU but the PSU uses 20 pins for the mobo
And 4 pins for the CPU

#6 DeimosChaos

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Posted 23 December 2014 - 07:11 PM

Ah okay. So on the psu there should be the 20 + 4 pin connector and a separate 4 pin for the cpu. If there is just the 20 pin you should have a couple extra 4 pins. You can use the one for the cpu and the other for the main board power. If not then you'll need another psu. Which I recommend anyway if its only 200 watts.

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#7 hman123467

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Posted 23 December 2014 - 07:31 PM

Thx




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