Will a ATX PSU fit in a microATX case?

Vermillion_1

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Aug 2, 2017
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I have a pre-built computer and I want to change my power supply to this: https://www.amazon.ca/gp/product/B01N5LEHTS/ref=s9u_simh_gw_i1?ie=UTF8&pd_rd_i=B01N5LEHTS&pd_rd_r=AZYACV3RH8PFEAEZF8C0&pd_rd_w=D1fJk&pd_rd_wg=L1u2p&pf_rd_m=A3DWYIK6Y9EEQB&pf_rd_s=&pf_rd_r=ZJ63M43F21ZAE0VX8J7Z&pf_rd_t=36701&pf_rd_p=07871b8e-d32a-4963-b98f-ba712077f7f5&pf_rd_i=desktop

I did my measuring and I see that the PSU would almost touch the optical drive. Do you think I would still have space to plug my modular cables in?
 
Solution
Short answer: Yes.

Long answer: It depends on the model. Higher wattage PSU's will have a longer length and your case has an bump meant to hold the PSU in place. So longer than avg PSU's will be problematic. Ex. A 500w PSU from EVGA has a 140mm length, but a 1000w unit has a 180mm length. Stick to something below 700w and you should be fine but double check the numbers before you buy.

Also as a side note, when asking for help, feel free to actually post a link to relevant hardware rather than post a "You can look it up". You're asking for help from people volunteering with their free time. A little politeness goes a long way.


My PC is an Acer Aspire TC-705. You can look it up.

My case is a mini tower and doesn't have a cable management back compartment. I could shove the cables underneath my unused hard drive bay.
 
Short answer: Yes.

Long answer: It depends on the model. Higher wattage PSU's will have a longer length and your case has an bump meant to hold the PSU in place. So longer than avg PSU's will be problematic. Ex. A 500w PSU from EVGA has a 140mm length, but a 1000w unit has a 180mm length. Stick to something below 700w and you should be fine but double check the numbers before you buy.

Also as a side note, when asking for help, feel free to actually post a link to relevant hardware rather than post a "You can look it up". You're asking for help from people volunteering with their free time. A little politeness goes a long way.
 
Solution


Thanks, and apologies for saying "look it up" This is how my PC LOOKS like: https://images10.newegg.com/ProductImage/83-101-220-03.jpg
 
Are you absolutely sure it's an mATX mini tower. Many of those mini towers are actually SFX, in which case a standard ATX psu won't work. If it is a mATX mini, check dimensions from length available from back of the case to any obstruction, you'll need approximately 150mm at least. There are several very good ATX psus that are 140mm, like the Corsair CXM, and you'll need that extra 10mm at least, for the wiring junctions and cable bends out of the psu.
 


My motherboard is a DTX. I measured the inside of my PC and took pictures, I am sure that it can support a maximum of microATX. I did my measurements and I am sure the PSU will fit. I am mainly worried about the cables because the end of the PSU is really close to the optical drive.
 
Yeah, that's often overlooked, the details like cables that stick out the back. Not all ATX psus are the same size, about the only thing that's universal is the shape and the bolt pattern on the exhaust plate. So you'll want to be shopping for the shortest psu you can find. At 168mm, that's gonna make things tight, you can easily add another 20-25mm at minimum for the connectors and wiring. If you space in anything shorter than @190mm, you'll have issues.

While that RGB fan is nice, at 140mm it's big. I'd be looking for something in the 120-130mm range and sacrifice a little on looks vrs fit and performance. Knowing the gpu would help with determining the size psu you need, kind of pointless to go for a large gold unit if you have a 1050ti, or conversely you'd need a 650w with a 1080ti etc.
 


Thanks for the reply.

BTW I have 1050ti, I just want to upgrade to 1060 to get rid of my bottleneck.

 
?. Gpu isn't usually a bottleneck. It might be lacking in power for what you want it to do, but it's not slowing anything down. Even for a pre-built, all you'd need for a gtx1060 is a 450w psu, a corsair CXM 450w would be a good fit. Fully modular, smaller frame, decent psu.
 


Yeah, but I want like 600w for future upgrades. Thanks for your reply.