PC tries to start for 1 sec, stops, tries again, stops...

Make sure you have connected:

24 pin connector from power supply to motherboard

8 pin connector from power supply to motherboard

2x6 pin connectors from power supply to graphics card

Try starting with just 1 memory stick in the slot closest to the CPU socket.
 
A picture says a thousand words. If you could take a detailed high res image of the inside of your case with everything connected as you feel it should be and post it up. We may be able to help you a lot more. First thing to do is just chill out. It will get sorted no matter what, you haven't lost any money, only gained a little experience ;)
 
Don't GPUs screech when the 6pin connectors are not attached?

Also, check the Ram voltage, SandyBridge likes 1.5v or less - and a lot of modern ram defaults to 1.65v.
 
My 4870 1GB used to screech when it had no external power so pcanywhere has a point. It could be the PSU cables for the GFX card are faulty/not powering the card
 
I had this issue and the PSU was purporting massively fluctuating 12V voltages (in the range of 11.1-11.7), and the PC wasn't booting. Lookup ATX CPU connector diagrams and test the voltages with a normal multimeter. However this was with a PSU that was 3 years old, so your issue is most likely a motherboard one. Although when it comes to memory problems, ASUS mobos usually just don't post and light the DRAM_LED onboard.

EDIT: just saw you have an MSI, sorry.
 
Mig said:
Stopped it restarting every few seconds, but nothing else. I put it back in but now the fans don't even start and it no longer continually restarts. One motherboard light comes on before it cuts out.
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Had the similar issue with another FSP PSU. This also worked with the paper clip test but refused to do anything else. Would provide standby power but as soon as I powered up it would cut out.

I sent it back. You should do the same. A PSU should not make a screeching sound. A low whine perhaps but a screech is not acceptable.

It's RMA time I believe.
 
Tealc said:
Had the similar issue with another FSP PSU. This also worked with the paper clip test but refused to do anything else. Would provide standby power but as soon as I powered up it would cut out.

I sent it back. You should do the same. A PSU should not make a screeching sound. A low whine perhaps but a screech is not acceptable.

It's RMA time I believe.
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I don't think it's his PSU making the screech.
 
Thanks guys. FYI, the graphics card is definitely plugged in properly.

The loud screeching sound went away (after changing removing and replugging some things) but the PSU still makes a quiet high-pitched whine sort of like a TV does sometimes. Is that's normal? Sounds like someone else has this: http://www.overclockers.co.uk/showproduct.php?prodid=CA-117-AN&tool=3

By the way, am I in danger of damaging anything by powering on when things aren't connected or these funny noises happen or things cut out all the time?

Nelson Santos said:
Sounds like you haven't pluged in th cpu v12 power supply.
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Possibly. Which one is this? I basically plugged in all the cables that were already coming out of the PSU, except one split cable that I couldn't figure out the point of (thought it was optional). There are some red ports on the back of the PSU that I assume are just for extra optional cables - do I have to plug something into them with any of the spare cables in the PSU box?


Surveyor said:
Make sure you have connected:

24 pin connector from power supply to motherboard

8 pin connector from power supply to motherboard
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OK, maybe this. I have plugged the 24-pin but not any 8-pin to the motherboard that I can recall. What's the 8-pin for? The product specification says it has a PCI-E 8 Pin Connector and a ATX 4+4 Pin CPU Connector but I don't remember plugging in or seeing any 8-pin connectors coming from the PSU.

I'm at work now, but from memory the only cable left unplugged from the PSU is one that splits into two connectors - one with 6 pins and one with maybe 4 but I might be wrong. There are some spare cables in the box but they all looked like duplicates of molex or SATA cables.
 
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I've plugged in the large 24-pin connector on the right of the motherboard by the RAM:

msi-p67a-gd65-1.jpg
 
Mig said:
OK, maybe this. I have plugged the 24-pin but not any 8-pin to the motherboard that I can recall. What's the 8-pin for? The product specification says it has a PCI-E 8 Pin Connector and a ATX 4+4 Pin CPU Connector but I don't remember plugging in or seeing any 8-pin connectors coming from the PSU.

I'm at work now, but from memory the only cable left unplugged from the PSU is one that splits into two connectors - one with 6 pins and one with maybe 4 but I might be wrong. There are some spare cables in the box but they all looked like duplicates of molex or SATA cables.
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I think this is probably your issue. The ATX 4+4 is the 8pin people are talking about. I think the connector is between the CPU socket and the backplate from what I can see from an image I found online. It won't fire up without that also being plugged in.

E-I
 
Yeah I see it top left. Cheers. I will check that out, just waiting for my new dual-channel RAM... although OcUK won't refund my other RAM unfortunately.
 
If you didn't plug in the 8 pin CPU connector that would certainly be your problem, or at least not plugging it in would produce no picture to your screen.

Lets hope you sort your problem out quickl with all the trouble you've had so far with cases and what not. :p
 
What about distance selling regulation? Have you had the ram for 7 days?

Is dual channel ram any different from tri channel, apart from number of sticks?

Thought you'd described the screech coming from psu. Anyway a little hum from the transformer isn't unusual, that said mine is totally silent under standby conditions.



Eps12v connection is pretty important. Yourmotherboard manual should have a section on connecting everything up.

I made the same mistake in not connecting the CPU eps12v connector in my first build but my case speaker alerted me to the problem.
 
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Tealc said:
What about distance selling regulation? Have you had the ram for 7 days?
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Yeah.

Tealc said:
Thought you'd described the screech coming from psu.
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I had a listen but couldn't tell. Not convinced it was from the PSU.

Tealc said:
Eps12v connection is pretty important. Yourmotherboard manual should have a section on connecting everything up.
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To be honest, the motherboard manual is pretty useless. In fact, I'm quite surprised at how bad nearly every manual I got was.
 
Mig said:
I had a listen but couldn't tell. Not convinced it was from the PSU.
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Empty toilet roll to one ear and have a listen. This technique should help you localise the noise.

Mig said:
To be honest, the motherboard manual is pretty useless. In fact, I'm quite surprised at how bad nearly every manual I got was.
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They aren't great these days. They sometimes have very basic instruction in a quick insall guide where the comprehensive guide with troubleshotting tends to be on the CD as a pdf.

If the whine is audible on the other side of the room then I would say this is not good enough. Fair enough if you have to stick your head inside your case to hear it. Just think how much it would annoy you in your room if it whined all the time while watching TV or having a kip on the sofa, or wherever you have the PC located.

The thing that causes this whine is high frequency vibration on one of the PSU coils. It can be fixed if you can determine which coil is doing it but to be honets it'sa not worth it unless your PSU is several years old and out of warranty. My PSU whines from occasionally when in use and whine normally comes with extra power loading.

At the end of the day it's your choice. Live with it. Refuse to live with it.
 
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