MSI Motherboard boot/CMOS Battery issues?

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Feb 11, 2014
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I'm doing my first ever gaming PC build and I've run into a snag. I've connected every connection required to boot and even triple checked the connections. Although, when I plug in my power supply and turn on the switch I get nothing.

My setup is:
CPU: AMD Athlon X4 760K 3.8GHz Quad-Core Processor
Motherboard: MSI FM2-A75MA-E35 Micro ATX FM2 Motherboard
Memory: Kingston XMP Blu Red Series 8GB (2 x 4GB) DDR3-1600 Memory
Storage: Kingston SSDNow V300 Series 120GB 2.5" Solid State Disk
Video Card: Sapphire Radeon R7 260X 2GB Video Card
Case: Apex PCV-588 (Black) ATX Mid Tower Case
Power Supply: Corsair CX 500W 80+ Bronze Certified Semi-Modular ATX Power Supply
Operating System: Microsoft Windows 8.1 (OEM) (64-bit)
Everything is brand new.

Ok, If all i plug in is my 24 pin molex connector and my 4 pin cpu connector and have the CMOS battery inserted and I flip the switch on the back of the power supply I get absolutely nothing. But when I remove the CMOS battery and flip the power supply switch all of the fans light up and turn on and the front panel leds come on. I've done the same thing with the system under full load. I even bought a new CMOS battery.

I've read that some of these motherboards tend to ship with an outdated bios that doesn't run a Richland CPU, but i figured the system would at least turn on when the battery is inserted. I'm trying everything I can think of.

I'm assuming it's shorting somewhere? I was going to try to breadboard the system but i cant because I get no power with the CMOS battery inserted. This is my first build and I'm sort of new but I understand what all needs to be happening.

I really really don't want to have to send this motherboard back... but if it's shot there's nothing I can do. If so what's an alternative motherboard that can keep my blue color scheme and is relatively cheap for the performance and function. Really disappointing being my first build and all and how long I've waited for the parts.

I really appreciate all the help and thank you in advance.

 

HillBillyAsian

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Apr 4, 2013
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quad check your connections, make sure your cpu and mobo power is plugged in, turn the switch on the back of the psu and try again, if oyu already have it in the case, check to make sure you have the power switch plugged into the correct spot. the fans should at least spin.
 

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I've checked and checked. I pulled the mobo out of the case now and I've connected just the 24 pin and the 4 pin and still same results. No power with CMOS battery in and Power but no boot without CMOS battery. I'm stumped!
 

TrendingOften

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Ok, I just jumped the motherboard wit the old PSU I had from an old computer. Knew it would come in handy! but i plugged it in and jumped the power button with a screwdriver and it works with the battery! I guess it's my cx500 PSU that's the problem?
 

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Ok, so now even if the old one works is it for sure my psu? because even when the new one is under full load it powers on without that battery but since it doesnt with it in that means its bad?

The new one is only 300 watts and wont power everything to get video...
 

Sharks445

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Mar 10, 2014
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Have you shorted the power pins on the motherboard to turn on the computer? Turning on the switch on the PSU will do nothing. You have to either attach a power button or short the two pins on the board to turn it on
 

TrendingOften

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Ok, I've figured it out and I'm completely 100% sure it's my PSU I just got video from my GPU and booted to the BIOS and even set priority to my USB to install windows. My new Corsair CX500M is the culprit. Hopefully Newegg is speedy with exchanges! Would it be a bad idea to run on the old 300W PSU until my new 500W psu is here just to install windows and all that jazz?
 

HillBillyAsian

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if you just take your new gpu out of the computer, just until you get your new psu, a 300w psu is enough to run what you have and install windows, and do the updates and get everything set up so when you do get your new psu you will be already set to go.
 

HillBillyAsian

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gratz glad you found it, i thought you were jumping it with a screwdriver the whole time, so i never thought to tell you to check that, glad everythings working lol