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New build won't start

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June 10, 2012 10:51:43 PM

I normally have no problems with building desktops that I can't solve but this one has me stumped. I'm building a new computer for a friend:
MOBO: Gigabyte GA-78LMT-S2P
CPU: AMD FX-4100 (Bundled with MOBO)
RAM: 4GB (2x2GB) Pareema DDR3 1333
Power Supply: COOLER MASTER RS-450-ACAA 450W

I originally tried it with two old power supplies, so when it didn't boot with either of those, I assumed they weren't providing enough power. I bought the Cooler Master, hooked everything up, and still nothing. I even tried bread-boarding it, and I'm not getting anything. Fans turn on, but there is no video and the keyboard lights don't turn on. There are no system beeps (with or without RAM). The only things I have attached right now are the power supply, the CPU, the system speaker, monitor and keyboard. Starting computer with paperclip between power pins and nothing at all. If anyone can give me anything to try before declaring that some component is dead, I would be very grateful

More about : build start

a c 128 ) Power supply
June 10, 2012 11:06:07 PM

Did you try your ram one stick at a time? You won't POST without some ram. Try each stick of ram individually (usually in the slot closest to the CPU). If you've tried both sticks one at a time and still nothing, it's time to declare something dead I think.
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June 10, 2012 11:28:03 PM

I have tried one stick at a time, but I'm really concerned that there are no beeps when all the ram is removed. It should give me a beep code indicating there is no RAM installed.
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a c 128 ) Power supply
June 10, 2012 11:35:26 PM

reffu said:
I have tried one stick at a time, but I'm really concerned that there are no beeps when all the ram is removed. It should give me a beep code indicating there is no RAM installed.

Ah, this is true... I would then suspect the mobo is bad and suggest you contact Gigabyte for RMA info (they may have a few things for you to check first but I think you've covered everything)
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June 10, 2012 11:40:58 PM

C12Friedman said:
Ah, this is true... I would then suspect the mobo is bad and suggest you contact Gigabyte for RMA info (they may have a few things for you to check first but I think you've covered everything)


That's what I thought, but I wanted a second opinion before I did, thanks. I'll call them tomorrow, I appreciate the quick reply. I'll post here if it turns out to be something other than the CPU or mobo.
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June 10, 2012 11:41:16 PM

Best answer selected by reffu.
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a b ) Power supply
June 10, 2012 11:53:09 PM

it not the mb...with new mb and new cpu the mb bios can be to old to boot with a new cpu.
the mb if you can see on the bios chip on the bottom of the mb or on the box if it says f1 bios the bios is too old.
http://www.gigabyte.com/support-downloads/cpu-support-p...
says the bios needs to be rev f4 for the mb to post with the new cpu.
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June 11, 2012 12:09:07 AM

smorizio said:
it not the mb...with new mb and new cpu the mb bios can be to old to boot with a new cpu.
the mb if you can see on the bios chip on the bottom of the mb or on the box if it says f1 bios the bios is too old.
http://www.gigabyte.com/support-downloads/cpu-support-p...
says the bios needs to be rev f4 for the mb to post with the new cpu.


In that case I'm returning the mobo and CPU anyway. I bought them from tigerdirect as a mobo/CPU bundle. If the bios on the mobo is too old to handle the cpu that was bundled with it, then that was tigerdirect's fault and I should get a refund anyway. Thanks though, I'll check the bios chip and see if I can tell what bios version it shipped with.
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Anonymous
a b ) Power supply
December 22, 2012 7:07:20 PM

I have the exact same problem , bought motherboard gygabite 78lmt-s2p fx4100 4 gig ram pre assembled and it is dead fans but nothing else the board looks bent unbelivable packaging when it arrived. company called tech next day from amazon wont answer there phones. Very very disapointed
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April 21, 2013 7:04:54 AM

Anonymous said:
I have the exact same problem , bought motherboard gygabite 78lmt-s2p fx4100 4 gig ram pre assembled and it is dead fans but nothing else the board looks bent unbelivable packaging when it arrived. company called tech next day from amazon wont answer there phones. Very very disapointed

Hi there, can you tell me how you resolved this. I have the same mobo. AMD bulldozer and 8gb. Sent it back and they apparently tested it but still no joy, can't figure how it can be anything else but the mobo.
Cheers

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