New build pc wont start.

azzah57 · Apr 20, 2015

recently i sourced all parts for my friends pc today they turned up and i went to put them all together.

The pc although done on a budget cost £900
Motherboard: MSI Z87M GAMING Micro ATX LGA1150 Motherboard
CPU:Intel i7 4770 3.5ghz processor
Ram: 3x Crucial 4GB (1 x 4GB) DDR3-1600 Memory
GPU:MSI GeForce GTX 970 4GB Video Card
SSD:OCZ ARC 100 120GB 2.5" Solid State Drive
HDD:1TB Western digital red
PSU:EVGA 430W 80+ Certified ATX Power Supply
please help
i put it all in his old case everything is connected if the pc turns on at all it is only for a short time. a couple of times it stayed on but still no picture from motherboard or GPU connections have no idea where to go next please help.

Cooper0408 · Apr 20, 2015

Your PSU is way to small for that system, you need a 500W minimum. If you go to Nvidia's website it says the GTX 970 needs a 500w or bigger power supply, if you can tell me what your budget is for a power supply I can recommend a good PSU for your friends system.

bootcher · Apr 20, 2015

It could be a number of things, but my first bet would be the psu being too weak. 430 watts (at 80+ is actually ~350 watts) is too little for that setup.

edit: try to boot the pc without the GTX 970, using the i7's integrated graphics.

azzah57 · Apr 20, 2015

we have tried without the gpu still nothing

azzah57 · Apr 20, 2015

Cooper0408 :

bootcher :

what PSU do you suggest then?

Cooper0408 · Apr 20, 2015

azzah57 :

Cooper0408 :

bootcher :

what PSU do you suggest then?

Whats your budget? I have a corsair 750M in my system which isn't high end but, its high quality and works great.

azzah57 · Apr 20, 2015

Cooper0408 :

azzah57 :

Whats your budget? I have a corsair 750M in my system which isn't high end but, its high quality and works great.

http://www.ebuyer.com/429987-corsair-cxm-750w-semi-modular-80-bronze-power-supply-cp-9020061-uk what do you think?

0x1eef · Apr 20, 2015

bootcher :

80+ works the other way: it draws 430/0.8 = 540 from the wall

Cooper0408 · Apr 20, 2015

azzah57 :

Cooper0408 :

http://www.ebuyer.com/429987-corsair-cxm-750w-semi-modular-80-bronze-power-supply-cp-9020061-uk what do you think?

Thats the same one I have, like I said its not high end but its high quality (meaning it won't destroy your PC) and that should be plenty of power for your friends system .

Rookie_MIB · Apr 20, 2015

0x1eef :

Exactly, and I was going to point that out. Generally, on reputable manufacturers (of which Corsair is one), the rating is that maximum that it will output at a given temp at a given efficiency. That means it will put out 430 watts total (it may not be too happy about that) and actually draw 500+ watts with the difference being turned into heat.

Overall, assuming the following:

84w CPU
150w GPU
50w motherboard
~30w (fan, HDD, SSD)

You're at 320w for the system and there's no reason why the PSU shouldn't handle that pretty easily. You're at about 75% load which isn't out of range or borderline, so there's got to be something else going on.

My suggestion would be (as mentioned) REMOVE the graphics card, connect to the basic IGP, and then do a bios reset via the reset pins and/or removal/reinstallation of the CMOS battery. See if it comes up with some video then and get back to us

bootcher · Apr 20, 2015

I made an error about the psu, sorry about that, must not comment before drinking coffee especially on Mondays.

In any case the power drawn from the gpu isn't at ful load when booting, so there is no reason it shouldn't boot with that PSU. Try to disconnect all components except cpu (with the IGP enabled) and 1 piece of ram, and see if it boots. If not try changing out the ram for another. You can also try to boot it with another PSU or cpu if you have one available. This way you can isolate/pinpoint the malfunctioning component.

azzah57 · Apr 21, 2015

Rookie_MIB :

0x1eef :

Exactly, and I was going to point that out. Generally, on reputable manufacturers (of which Corsair is one), the rating is that maximum that it will output at a given temp at a given efficiency. That means it will put out 430 watts total (it may not be too happy about that) and actually draw 500+ watts with the difference being turned into heat.

Overall, assuming the following:

84w CPU
150w GPU
50w motherboard
~30w (fan, HDD, SSD)

You're at 320w for the system and there's no reason why the PSU shouldn't handle that pretty easily. You're at about 75% load which isn't out of range or borderline, so there's got to be something else going on.

My suggestion would be (as mentioned) REMOVE the graphics card, connect to the basic IGP, and then do a bios reset via the reset pins and/or removal/reinstallation of the CMOS battery. See if it comes up with some video then and get back to us

hello again today we have had no successes we removed the gpu added the corsair 750m and tried again. no video output from the pc, tried with 1 stick of ram 2 and all 3 and nothing still tried both hdmi's on mobo and the dp but nothig tried all from gpu nothing. cleared the cmos reinstalled it and nothig anyone got other suggestions ??

Cooper0408 · Apr 21, 2015

azzah57 :

Rookie_MIB :

hello again today we have had no successes we removed the gpu added the corsair 750m and tried again. no video output from the pc, tried with 1 stick of ram 2 and all 3 and nothing still tried both hdmi's on mobo and the dp but nothig tried all from gpu nothing. cleared the cmos reinstalled it and nothig anyone got other suggestions ??

It sounds like either your GPU is broken or your motherboard, Does your gpu fan spin when you turn it on?

azzah57 · Apr 21, 2015

Cooper0408 :

azzah57 :

Rookie_MIB :

hello again today we have had no successes we removed the gpu added the corsair 750m and tried again. no video output from the pc, tried with 1 stick of ram 2 and all 3 and nothing still tried both hdmi's on mobo and the dp but nothig tried all from gpu nothing. cleared the cmos reinstalled it and nothig anyone got other suggestions ??

It sounds like either your GPU is broken or your motherboard, Does your gpu fan spin when you turn it on?

yes all fans spin up gpu cpu and all 3 system fans but still no image.

Cooper0408 · Apr 21, 2015

azzah57 :

Cooper0408 :

azzah57 :

It sounds like either your GPU is broken or your motherboard, Does your gpu fan spin when you turn it on?

yes all fans spin up gpu cpu and all 3 system fans but still no image.

My guess would be its the motherboard, due to the GPU is getting power, but theres no display from the gpu or APU, (the built-in graphics) so I would return that motherboard, and get a replacement, hopefully that will work!
Did you plug in the 4-pin\ 6pin connector to your GPU?

bootcher · Apr 22, 2015

It would be the motherboard or CPU that is faulty. If you can, test the motherboard with another cpu?

Rookie_MIB · Apr 24, 2015

I'm thinking it's a faulty MOBO or CPU myself. Of the two, I would tend to angle towards it being the MOBO because the CPU goes through quite a bit of testing before it's even sent out. MOBO's? Not so much.

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