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Problem starting new computer

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Posted by: mcottier

Hello. I am having a problem with my new computer I just built, and I was hoping maybe someone can help me. This is my first time building a pc, but I am not stupid though and I know a lot about computers. I also read every word of the manual that came with my motherboard, so I believe everything is hooked up right. First, I will list what parts I am using so you can get a picture of the PC.

Motherboard: Asus A7V8X-X

Power Supply Unit: ATX 350 watt (A+GPB)

CPU: AMD 2400+ Athlon XP

RAM: 256 MB DDR PC3200

Ok, here is my problem. When I turn the power switch on, the green light on the motherboard comes on, no fans though. Then when I push the power switch on the front, nothing happens at all. Now you should know, this happens when the power supply switch is on 110. I know that 110 is for Americans, and I am American, and 220 is for Europe or something. But when I switch it to 220, still no fans come on, but when I push the power button in front the LEDS now come on and one of the cd drives (sometimes the burner and other times the dvd drive) but the drive will not open when I push the eject button.

My CPU is not damaged or anything, I have inspected it thoroughly and the other parts too. I have removed whole motherboard, set it on a wood table and cardboard to ground it, still doesn't work. I have tried it with overvolt enabled and disabled. I have cleared CMOS and returned jumpers to default setup, still nothing. I have tried it with no cd drives or hard drive hooked up to it, just video and cpu, still nothing. I have also done it with just CPU, video and hard drive. I know all fans, including cpu fan, are hooked up right. I have also kept trying to reseat the RAM and CPU, nothing. I am also pretty sure jumpers are set correctly. The only jumpers I can see that might cause a problem are the clear CMOS and the overvolt, but I have tried every combination possible and still it doesn't fully work.

Now one at this point might think there is not enough power because only one cd drive turns on when I do get it to work a little. But the PSU is 350 watt, and I think that is enough, but I could be wrong. But the whole 110 and 220 thing on the power supply unit really confuses me. I mean if 110 is for America, and I bought my motherboard in America, then why does it do less then when it is at 220? I don't know, I am all out of ideas, can anyone help me? Thank you for your time.

Sincerely,
Michael Cottier



Posted by: shdovvdrg0n

hey, i built my computer too and it was a bitch. Here might lie your problem. When the chassis comes, the power switch, restart swtich, grounder, etc, all have pins they MUST be connected too. Now my mother board is also an asus, so i know there instruction manual is very accurate, and is one of the best i have ever seen. now, if you go towards the back, where the highlight each of the motherboard parts, it will tell you which connector goes where. AT first, when I built it, nothing worked, so I followed everything accordingly, and it works great now. What you want to make sure is, you have the manuals PICTURE, pointed in the same way your mother board is across from you, so you know your looking the right way. If on the mother board instructions, there are some parts it says is used for, but you dont have that included with the chassis, it's ok, just take the one most SIMILAR and connect it to it. If there is an EXACT one, connect it. The most important parts are the GROUNDER, SWITCH, and RESTART. Make sure you kno wit all. Good luck, post me back if you need more help.



Posted by: louis

Go back and check your connections. make sure you have the chassis cables connected correctly. I have an Asus Mobo and it's a little wierd how the wires should be place on the mobo from the chassis. Right now I cant imagine what it could be other than your connections, but I would not use the 220 even for testing or to see if anyting happens.

It can be frustrating but after you know 100% your connections are correct you should be able to post. I wont rule out the PSU either but there is just to much right now to say if it's one thing or the other, but the PSU can be bad. Just start from the wiring. Good Luck.



Posted by: mcottier

I just found out what it is. I am so dumb, the Power supply is broken. I now know this because the fan has never come on when I have flicked the power on. That obviously means it is broken. Or, is the fan not suppose to come on until a little while or something?



Posted by: redwench

means there is something wrong with it, although its not necessarily the problem.



Posted by: The-AoD

Well more of todays modern Power supplies only turn the fan on when it knows it's powering enough items to cause it to heat up. If I unplug everything but my motherboard and try to get the system to fire, it won't turn any fans on.

I'd say the simplest things always are first. Make sure you have your power switch/reset switch plugged in exactly right. If they aren't you may have an LED come on for your motherboard(Meaning it has power), but no way to actually cause the motherboard to start. My soyo was just like that. If you turned the power supply on, but didn't start it, the LED would light.

I doubt that the power supply is the issue. Check over everything twice, maybe three times. And make absolute sure you hooked the power and reset buttons right. If you don't you have no way of telling the motherboard to "boot up".

And for the 110 and 220 switch, there are two standards in electricity in voltage, 110 and 220. Switching it to 220 will cause the power supply to require 220 before even thinking of working properly. If you're not sure which you are on, then here's a way to tell. If you're on a normal wall socket, it's 110. If you're on a 3 prong triangular socket that say, your stove might plug into, you're on 220. 99% odds says you're on 110.

(Ohh one last thing, make sure you don't have the clear cmos jumper with a short on it (The small jumper plastic piece). Some motherboards will automatically default into a no power mode when trying to boot with that jumper shorted.

Ohh and I just checked, the power and reset switches should be labeled PWR and RST, if I am reading the correct manual. No pictures tho, so I couldn't tell you where to check. I'd double, triple, even quadruple check those. Seeing as how they are most likely your problem.



Posted by: Da Weef

Yup I have to go with that... Most power supplies only start fanning when they heat up nowadays and when your computer isn't running that isn't the case. The green LED probably means that your computer is getting power from the supply so it should be in perfect shape.

As been said earlier, the most probable problem is that your chassis buttons aren't connected the right way. There are some small labelled connectors coming from your chassis to connect the buttons. On your motherboard there is a system panel connector (on Asus boards mostly some around the right lower corner). To see how to connect them properly go to the manual of your motherboard and find the scheme for the system panel connector in the hardware section.
Should be easy from there...

Ow and don't worry about the 220/110 switch, because if you already put power on it and it didn't blow out hard, then you propably have it switched the right way... Been there, done that (bought a supply preset on 110 -> weird...), got a new power supply for free.

Good luck!



Posted by: Ed_VVolf

See if the standby circuit provides enough power.



 
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