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Strange motherboard problem

Last response: in Components
March 31, 2012 9:08:05 PM

i just installed a new motherboard, CPU, RAM, and Video card. everything seems to have power on the motherboard, and i cant smell any burning smell......but i am having two pretty big problems.

1. monitor wont turn on. I've tried hooking it to my new video card, and using the integrated graphics card on the motherboard as well, still nothing

2. any external devices i plug into my computer gets a brief amount of power before it turns off. my mouse lights up it's little LED on it, then it goes away.....

i cant hear much work from the HDD, and i'm wondering if its an older hard drive (5 years about) would using the newer cables not work with my old hard drive?? that's what i'm trying now but any other suggestions would be really helpful. thanks
a b U Graphics card
a b V Motherboard
March 31, 2012 10:09:12 PM

hard drive shouldnt matter if the connectors fit it should be ok

did you plug in the 4 pin or 8 pin connector whichever one your board has?

might help if you list your hardware
March 31, 2012 10:50:06 PM

My motherboard has an 8 pin connector and my motherboard has a 4 pin connector. That shouldn't affect anything right??

PNY Optima 8 GB (2 x 4 GB) PC3-10666 1333MHz DDR3 Desktop DIMMs Memory Kit MD8192KD3-1333

EVGA GeForce GT 520 1024 MB DDR3 PCI Express 2.0 DVI/HDMI/VGA Graphics Card, 01G-P3-1521-KR

GIGABYTE AM3+ NVIDIA GeForce 7025/nForce 630a Chipset DDR3 1600 Micro ATX AMD Motherboard GA-M68MT-S2

AMD FX 4100 4-Core Processor, 3.6 4 Socket AM3+ FD4100WMGUSBX

Corsair - Gaming Series 700-Watt ATX CPU Power Supply
a b U Graphics card
a b V Motherboard
April 1, 2012 9:40:28 AM

My motherboard has an 8 pin connector and my motherboard has a 4 pin connector

sorry but not quite getting that bit

should one of those be psu?

not both motherboard?