Micro Atx case/psu, will it support GTX 750 ti/ Radeon 7790?

[joerack]

Hello,

I'd like to play re6 and Rise of the Tomb raider at the highest setting possible.

At the moment I have a radeon 7750 that does it's job decently, but I feel like I'm missing out on the higher settings, as I can throttle max at 720p and medium graphics setting before the frame rate drops below 20fps
Ps: My computer configuration is a Micro Atx, so I have to use micro atx power supplies

Anyway my current system specs are
Processor: Intel Core i7 2700k Sandy bridge
Mainboard: Asrock B75M-DS3
Video Card: Amd radeon 7750
Hard Disk: SSD 256gb
BD Rom drive
Physical Memory: 16384MB (2x 8096 1333Mhz)
Power supply: Micro Atx 500w 12v : 22A

 

[nukemaster]

We may need more information.

A 750ti is a very friendly card rated at about 5 watts more than the 7750.

Please clarify mATX power supply because there is no such thing in general. SFX and TFX power supplies are sometimes mislabeled as mATX.

If you only have a single 12 volt rail @ 22 amps. Treat that power supply as a 300 watt unit at most. Please get a picture of your power supply.

SFX units look like this.

 

[joerack]

http://www.pcper.com/files/imagecache/article_max_width/review/2014-04-28/DSC_0189.JPG

As you can see it's the one on the left, the classical micro atx solution, that only fits in a micro atx case.
So, I'm looking for a vga that doesn't need a 6pin solution, and feeds only from the pci-e slot.

I'm wondering if I'll be ok with my config

 

[nukemaster]

That is SFX. It is also used in almost all mITX cases including mine

Here is that same size of power supply in a board that only has a single slot(the case has 2, but the board has one). Pointless fact with 2 slots the board would be mDTX instead

If you are not overclocking, a 750ti should be no issue at all. Most of them do not require a 6 pin pci-e cable(check the specs).

Again, treat that unit like a 300 watt unit simply because 22 amps @ 12 volts is 264 watts(a far cry from 500). I know you have other rails, but modern systems hit the 12 volt rail hard and even generate the 5 and 3.3 volt rails from the 12 volt rail.

I would be interested in knowing who made the power supply because only recently did we get good quality SFX units over about 350-450 watts.

 

[joerack]

Here's a photo
http://prnt.sc/cgr9wu

So you confirm I can buy something like this http://www.tomshardware.com/reviews/geforce-gtx-750-ti-review,3750-3.html

 

[nukemaster]

That is one generic looking power supply with very little information. The part that says combined 230 watts is a bit alarming(max 500 sounds like it would take that for a split second).

Because a 750ti takes only a small amount more power than a 7750 it should be ok, but that power supply is still sketchy(not one of good quality) at best. Most good power supplies are rated in constant output not peak.

Check the card makers specs when buying some images on the site seem to show a 6 pin while others do not. Overclocked cards may have the 6 pin so they can get past the slot power limit.

As an example image here is a 300 watt SFX unit rated for the same 22 amps(across 2 rails. any rail can draw its max as long as the other does not push it over 22), but listing a continuous output of 300 watt.

It may be a good idea to keep an eye out of other power supplies in the future because I am not sure how long that one will last.