GA-H55M-UD2H power on and off loop.

[thunderboltspro]

Specs.
I7 860
seagate 750GB HD
Xfx gt240 graphics card.
No name 350 watt power supply.
Kingston  1G x 2, PC3 8500, slots 1,3

First plugged it in did the power on and off loop thing. Moved the ram around nothing at first but  it got out of the loop on and off. No video, turned it back on and off. A few minutes later wouldn't turn back on.

I wanted to test it all before i put it in its real case.

[Dark Mantis]

Well the obvious thing is the crap power supply you are trying to use with the rest of the decent components No wonder it won't work. Get yourself a good quality PSU of at least 600w preferably 80+ certified.

[Fatman]

^^+1 that power supply is not stong enough. As Dark Mantis said get a 600w as the minimum, you should always buy the best power supply you can afford as it is the most vital part of your set up!

[absic]

It never ceases to amaze me when people spend a small fortune on CPU, Memory Motherboard, Graphic Card, Hdd's etc., and then scrimp on the PSU.

[thunderboltspro]

Im not skimping on it, i just haven't received it yet.
This is my first build ,I just wanted to test it before i got everything else in and thought 350 would be acquit for a mere posting but i guess not.
So im guessing this motherboard is toast then after it wouldn't start the last time?

[absic]

Hi,

No your mobo and all the components will be fine. When you get your proper PSU it should be OK.

I apologise, I didn't mean to offend but you would be amazed at the amount of times people do actually buy the cheapest PSU and are then surprised that they have problems.

[Dark Mantis]

As absic115 says your components should be fine, it's just that the small PSU just wouldn't be man enough for the components you were using. Worst you may have done is toasted the power supply. As a matter of interest what PSU are you getting to replace it?

[thunderboltspro]

Either
Ultra X4 600-Watt Modular Power Supply
http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=4558897&pagenumber=1&RSort=1&csid=ITD&recordsPerPage=5&body=MAIN#ReviewStart
Or
OCZ ModXStream Pro OCZ600MXSP 600W
http://www.newegg.com/Product/Product.aspx?Item=N82E16817341017

Im still debating.

[Dark Mantis]

They are both decent power supplies. Personally I am running a Corsair HX850 and it is absolutely brilliant, it's 80+ certified and warrantied for 7 years. The HX series are very reliable.

[gmorpheme]

Did a better power supply fix this?

I'm seeing exactly the same with my new GA-H55M-UD2H but using a Corsair 430CX. Powers up for a second then dies, takes a few seconds for the fans to spin down then the process repeats. Just twice it's stayed on but I haven't seen any output on screen (first time with TV plugged in via HDMI, the second an LCD screen via DVI). Every other time it's this same on / off loop.

It's in a Silverstone LC20 case, components are:

i3 530
LG blu ray drive
2 x samsung spinpoint hard drives
2 x Corsair 2GB DDR3 memory sticks
Blackgold BG-3595 TV card
4 case fans

Have tried removing different components but always the same.

[Dark Mantis]

I don't know in this instance as the OP hasn't updated the thread but more often than not it is a power problem. Sometimes it is just down to user error where they haven't plugged in  the extra 12v connection otherwise it tends to be the PSU themselves. They are not necessarilly faulty but just not a good design/size for the system. Often it is because they are multi-rail on the 12V side and they do not perform as well as the 12V single rail ones on modern motherboards.

[chaoszerom]

I'm running the H55M-USB3 board with an i5 and a 550w PSU, and getting the same problem.

I KNOW it's not that the PSU doesn't have enough oomph, unless it is faulty, because it still won't work with just the mobo and the CPU/heatsink in, which should be much less than 550w. All 5 Phase LEDs light up as well, just to let you know.

So, what's my problem?

[Dark Mantis]

I'm running the H55M-USB3 board with an i5 and a 550w PSU, and getting the same problem.

I KNOW it's not that the PSU doesn't have enough oomph, unless it is faulty, because it still won't work with just the mobo and the CPU/heatsink in, which should be much less than 550w. All 5 Phase LEDs light up as well, just to let you know.

So, what's my problem?

Hi
If you give us a little more information we stand a better chance of being able to help you. Can you list your components by make and model please? Especially CPU/memory/PSU/GPU.

[chaoszerom]

'Kay

Intel  i5 650 at 3.2 Ghz
Gigabyte GA-H55M-USB3 (Rev 2, I believe)
OCZ 4gb RAM (2x2gb) in slots 1 and 3
CoolerMaster Extreme Power Plus (ATX) 550w

I'm just trying to run those components, and even then it still has the same outcome. I've shorted CMOS, nothing, so soon I am going to try a confirmed working 320w PSU and hope that that makes a difference.

[Dark Mantis]

I notice that you haven't got a buzzer/speaker attached. That would be a useful extra.
The other thing I would suggest at this point is to remove the CPU and optically check the socket for damaged pins. You cna also check the lands on  the underside of the processor and make sure each has a mark from the pin in the centre. If any don't or there are any pins that you are not sure about take a photo or two in macro mode and post them on here for us to check for you.