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New build shuts off automatically within seconds


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#1 aronsamma

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Posted 25 February 2009 - 10:11 PM

I built a new computer tonight, but it won't stay on for more than a few seconds. Here's what I've got:

GA-EP45-DS3LR Gigabyte motherboard
8gb (4x2gb) OCZ 800mhz RAM
Intel e5200 pentium dual core
Samsung 500GB HDD
Saphire HD 4870 512mb graphics
500w pc power and cooling 'Silencer'
generic DVD-RW




So, I put it all together, and turned it on. The fans started spinning, and it sounds like the harddrive is spinning too. The lights come on on the motherboard and graphics card, but the screen stays blank. After a couple seconds, the computer shuts down. After a couple more seconds, it turns itself back on, and repeats the process.

After doing a little research, it seemed like a possible heat issue, so i changed out my aftermarket cooler for the default intel one, because I know that should at least be able to boot. I double-checked all the connections, and everything seems completely fine. Any ideas?

Edited by aronsamma, 25 February 2009 - 10:26 PM.


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#2 fairjoeblue

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Posted 25 February 2009 - 10:28 PM

If you have all of the front panel connectors [on/reset/lights] try disconnecting everything but the power button.

I had the same issue awhile back.
Tirned out I had something hooked to the rest & it kept cycling the computer.
OCZ StealthXstream 700W,Gigabyte GA-EP45-UD3R , E8500, Arctic Freezer Pro 7, 3GB G.Skill PC8500,Gigabyte Radeon HD 4850 OC [1GB ], Seagate 250GB SATA II X2 in RAID 0, Samsung SATA DVD burner.

#3 aronsamma

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Posted 25 February 2009 - 11:01 PM

I gave it a try, but no luck.

Some more details:

The computer will only turn on with the front button, not off. Once it starts its on-off cycle, I can only flip the switch in the back to turn it off. Even after I do that, it starts to come back on for half a second before turning off for good.

#4 fairjoeblue

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Posted 25 February 2009 - 11:26 PM

Try removing all of the memory except 1 stick, disconnect everything except the monitor, keyboard & mouse
See if you get a display of any kind ]like the BIOS setup]

Also check the jumper to clear the CMOS & make sure it's in the right posistion [if it has one] .

BTW, You did plug in the "square" 4 pin CPU power lead ?

Edited by fairjoeblue, 25 February 2009 - 11:28 PM.

OCZ StealthXstream 700W,Gigabyte GA-EP45-UD3R , E8500, Arctic Freezer Pro 7, 3GB G.Skill PC8500,Gigabyte Radeon HD 4850 OC [1GB ], Seagate 250GB SATA II X2 in RAID 0, Samsung SATA DVD burner.

#5 aronsamma

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Posted 26 February 2009 - 07:03 AM

yeah, it's plugged in. I'll try that when I get home from work tonight

#6 dc3

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Posted 26 February 2009 - 07:47 AM

Did you use thermal compound when you installed the heat sink and fan on the CPU?

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#7 aronsamma

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Posted 26 February 2009 - 05:00 PM

yes, i did. I think I have it narrowed down to the graphics card and memory. Taking out all but one DIMM, and re-installing the graphics card allows me to install windows (which is going now), but now I think some of my RAM is bad. I'll update more later.

#8 aronsamma

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Posted 27 February 2009 - 06:37 PM

Turns out it's the motherboard. I can boot with any of the DIMMs in slot 0, so I know all the memory works. The problem comes back when i've got more than one DIMM in, so it seems like it's got to be the board.

#9 fairjoeblue

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Posted 27 February 2009 - 07:13 PM

I actually ran into the exact same problem with a HP I was upgrading this week.

It had a motherboard made by Intel & uses DDR 2 memory.

According to HP it would tacke 533MHz or 667MHz memory.

I put 2x1GB 667MHz on it.
It worked fine for a few boots & then started shutting down & restarting.
After trying many things I put the original memory stick in it & it worked great.
I then put 2x1GB 533MHz memory on & it works perfect !

The HP website indicted 533 or 667.

The Intel site listed 533Mhz only.
OCZ StealthXstream 700W,Gigabyte GA-EP45-UD3R , E8500, Arctic Freezer Pro 7, 3GB G.Skill PC8500,Gigabyte Radeon HD 4850 OC [1GB ], Seagate 250GB SATA II X2 in RAID 0, Samsung SATA DVD burner.

#10 hamluis

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Posted 28 February 2009 - 03:13 PM

If you want to...you could also try lowering the system clock (in the BIOS) so that you might be able to use all your RAM modules.

Louis

#11 Sneakycyber

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Posted 02 March 2009 - 08:02 PM

Are you populating the correct slots for 2 dimms. For this board Channel 0 is slots 1 and 2 and channel 1 is slots 3 and 4. With slot 1 closest to the processor.


Credit:Motherboard Manual from Gigabyte Website

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#12 aronsamma

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Posted 10 March 2009 - 09:14 PM

Just got my new motherboard, and I'm completely up and running no problem. Thanks for your help guys

#13 Sneakycyber

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Posted 11 March 2009 - 04:36 AM

Happy you got it working :thumbsup:

Chad Mockensturm 

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Certified CompTia Network +, A +





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