as said in the title i bought an i5 and a new mobo. i installed them today and my computer wont display a picture.. it powers up but will not boot into the bios or anything. tryed booting with onboard video, nothing. old video card, nothing. went to my old parts and its still doing it. my new motherboard doesnt beep or anything yet it powers up the cpu fan and case fans. which leads me to believe its not fried. i say this because i tried booting without any ram, which i hear usually warrants a beep or something from a motherboard usually saying hey, i cant run without memory. im beyond confused because i've tried to boot with only the bare minimum PLUS my old hardware that was just working 4 hours ago. now i didnt try booting with individual parts on the old hardware but i did use my old video card, and same thing. no clue what the variable is here but im completely stumped. please help.
bought i5 3570k with asrock z75 pro3 mobo. computer wont work.
- Thread starter Mike Buck
- Start date
no i dont think both connectors are plugged in actually, and ill try plugging in some speakers and see if it beeps at me ty. my old mobo only has the 24 pin connector i think tho but ill try the speaker thing. its not booting into the bios with the ram and cpu plugged in tho. does it need a hdd to do so?
my new mobo has an 8 pin connector, but my psu doesnt, im assuming i can get a converter for say a 4 pin connector to solve this problem but i think this is what my problem is. i ddint think i'd have to plug into the 8 pin if i used the 24 pin. plugged into the 4 pin on my odl mobo and the beeps started rolling ill let u guys know but i think i've found my problem.
so this is a reason why it will not start you need something like this :
http://www.ebay.co.uk/itm/StarTech-com-6in-4-Pin-to-8-Pin-EPS-Power-Adapter-w-LP4-F-M-12V-DC6-/230968447511?pt=LH_DefaultDomain_0&hash=item35c6cad217
or new psu
http://www.ebay.co.uk/itm/StarTech-com-6in-4-Pin-to-8-Pin-EPS-Power-Adapter-w-LP4-F-M-12V-DC6-/230968447511?pt=LH_DefaultDomain_0&hash=item35c6cad217
or new psu
groundrat
Distinguished
- Dec 11, 2012
- 952
- 0
- 19,160
No. You can power an eight pin from a four pin connector. The individual pins are shaped so they will not go in the wrong way.
What you might be seeing is that your old power supply does not have enough juice to power the board and all the components. Try removing the motherboard and placing it on a nonconductive surface. Put in one stick of ram, leave the CPU installed with the CPU fan and the GPU. Plug in the power connectors, Plug a monitor into the GPU and turn on the juice. You should be able to get to BIOS. If you can then it isn’t any of those components. Try placing the ram in one stick at a time and rebooting to bios, you should see the value of installed ram going up. At that point you’ve checked everything except the hard drives, the optical drive and the case.
Yes, the case. Your Motherboard could be grounding out on something. Check to make sure none of the solder joints are grounding onto painted or unpainted metal. Solder joints can be sharp and will scratch through metal to ground out. Electrical tape works as a good insulator in these cases (pun intended). You will notice that the standoffs (your using standoffs to install your motherboard, right?) are made of brass which is nonconductive. The only ground your motherboard should get is from your power supply.
With just the HD video on your i5, your components will need a good 400Watt power supply. Add a HD7700 or better and the wattage goes up. I’d recommend a 650Watt Seasonic. This way you have plenty of headroom to expand.
What you might be seeing is that your old power supply does not have enough juice to power the board and all the components. Try removing the motherboard and placing it on a nonconductive surface. Put in one stick of ram, leave the CPU installed with the CPU fan and the GPU. Plug in the power connectors, Plug a monitor into the GPU and turn on the juice. You should be able to get to BIOS. If you can then it isn’t any of those components. Try placing the ram in one stick at a time and rebooting to bios, you should see the value of installed ram going up. At that point you’ve checked everything except the hard drives, the optical drive and the case.
Yes, the case. Your Motherboard could be grounding out on something. Check to make sure none of the solder joints are grounding onto painted or unpainted metal. Solder joints can be sharp and will scratch through metal to ground out. Electrical tape works as a good insulator in these cases (pun intended). You will notice that the standoffs (your using standoffs to install your motherboard, right?) are made of brass which is nonconductive. The only ground your motherboard should get is from your power supply.
With just the HD video on your i5, your components will need a good 400Watt power supply. Add a HD7700 or better and the wattage goes up. I’d recommend a 650Watt Seasonic. This way you have plenty of headroom to expand.
- Apr 27, 2009
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If your power supply only has a 4 pin connector, I would replace it. Either it is quite old or of very bad quality. I haven't seen a single quality one that didn't have some form of an 8 pin connection for motherboard. My older TX 750, for instance, has a 4+4 setup so it can be used with either type of board without having a full 4 or 8 pin connector sitting around doing nothing.
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