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PLEASE HELP ME WITH MY MOTHERBOARD

Posted on 2003-03-06
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Last Modified: 2011-09-20

I have a gigabyte motherboard model GA-7DXE, i can not get the computer to even post. i think that the problem could be that the motherboard is not grounded correctly or maybe i dont have the jumper set right. i have a brand new power 350w power supply and it doesnt appear that it is even comming on. the processor fan does not start when you cut the power on but i do get a DIMM LED on the motherboard itself. could someone give me some suggestion as to what i should try or what might be the problem.
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Question by:TechSupport
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23 Comments
 
LVL 5

Expert Comment

by:rrhunt28
ID: 8083808
You will want to strip the motherboard down to just the processor and processor fan, place it on a non conductive surface, and connect the system speaker, and system power switch.  Then power it up, this will allow you to narrow it down to either a motherboard or power suppy problem, allow you to better concentrate what might be wrong.  Try that then let us know how it goes.  
ps if it goes well you will hear alot of bios beeps, they are alarms telling you you have no memory and no video card in the board.  Then start adding one thing at a time to make sure everything works.  GOod luck.
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by:Baddog
ID: 8084079
TechSupport,
       If after setiing up as per rrhunt28, you do not get any beeps, your CPU could be at fault, also.


BDog
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Expert Comment

by:Kyle Schroeder
ID: 8084156
Be sure you don't have any extra motherboard standoffs (they screw into your case, then you screw the mobo onto them).  One of these could be shorting you out.  Also verify that your power supply voltage is set properly; in North America it should be set to 115V, most other world areas, 230V.  This is changeable via a red switch on the back of the PSU.  The DIMM LED might be on to indicate the memory is not installed properly also.

Be sure you have the fan from the CPU plugged into the correct fan header on the board; some mobo's have circuits that can detect that the fan is not connected and won't power on to prevent frying the CPU.  Verify that the leads from your case are properly connected (esp. the POWER_SW and RESET_SW which lead back to the power button and reset switch.

-dog*
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Expert Comment

by:ticktacksir
ID: 8084811
AS suggested by rrhunt28 strip it down, but also try reseating the connectors, processor and memory.  I've also noticed for some reason that when you first boot up a gigabyte board with a new processor you need to make it jumperless.  Then after you get it to post, shut it down and jumper it.  
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Author Comment

by:TechSupport
ID: 8088306
i dont have the manual so i dont know what the correct jumper settings are. i looked at the manual and it wasnt really clear as to what the settings should be. also i looked on my mobo and it appears to not have the jumpers where they are supposed to be. they look to be just capped off, so is it possible to have internal jumper settings or do i need to look somewhere else on the board....right next to the bios chip there are jumpers (4) like this

| |||

so i really dont know if that is a valid jumper spot but i dont think they put connections on a motherboard for no reason. look at the diagram of the gigabyte GA-7DXE board and see what you think. I REALLY NEED TO GET THIS COMPUTER WORKING
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by:rrhunt28
ID: 8089244
IF you go to Gigabytes web site, they will have the manual for you to download and print.
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by:TechSupport
ID: 8089450
can one of you please let me know what jumpers HAVE to be in place for the computer to boot properly? ive looked at the manual but it really isnt specific to tell you exactly what to check for when you cant get power. im at work right now but im going to try all these things when i get home.
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Expert Comment

by:ticktacksir
ID: 8090631
If your processor is around over the 1400 Athlon make sure the jumper that just below and to the right of the agp slot is set to "on" Then according to the manual the 5 dip switches "1,2,3,4" should be "off" and "5" should be "on"  Also if you have more than one stick of memory make sure that you take all of them but one out.  You could also try removing the battery off the board and remove the power cable from the back at the same time, leave it sit for 10 minutes and then put the battery back in and try firing it up.  If you have another ATX power supply around there you could try and fire it up with that installed in there.  Try installing a different video card.  Basically keep switching parts one at a time until you find the problem.  Narrowing it down is what troubleshooting often comes down too.  Just because its new doesn't mean it always works.
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by:Jimbo99
ID: 8100546
Is this a new mobo that you are putting into another system?  What cpu?  What ram?

As has been stated, strip it down to the basics, examine the manual to ensure that your mobo is set to work with the cpu.
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Author Comment

by:TechSupport
ID: 8102552
ok check this. i stripped that hoe down and started from scratch. when i hook up the switch and the internal speaker i dont get any beeps when i give it power. so i just reseated everything and hooked up the monitor and the keyboard. then when i turn the power supply on and hit the switch i get lights on the keyboard but they just flash and then go off. you can turn the monitor on but it goes directly into sleep mode. i think the problem is that the board is not grounded properly to the panel. im getting some different spacers and screws today and im going to make sure that everything is right with that. COULD THE BOARD NOT BEING GROUNDED BE THE WHOLE PROBLEM?
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Expert Comment

by:snizle60
ID: 8102603
Strip it down to the motherboard, processor, and power supply on a desk/table (not the case) hook up the system speaker and see what beeps you can get out of it (list of beeps here, http://www.Totally-Hardware.co.uk/tutorials/beep) Then add one item at a time i.e. ram, video card etc. Until you reach the problem.
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by:Baddog
ID: 8102735
Tech,,,
   It is actually the opposite,,,if the board were grounded on the case,,other than the stand-offs which actually ground the board,,,then the power supply will not get a POG (power-on-good) check and will not power on the board.

You can actually bench the board,,,that is set it on a nonconductive surface, plug the power connector, install a video card and monitor and it should power up (be sure to connect the power switch and PC speaker wires). You should be able to boot the board at least through the POST routine.  If not, then try another video card, then a CPU. Last item is the MoBo.

Did you check the setting for the voltage selector on the power supply, as someone mentioned above? If set to 230 volts, while needing 115 volts it will inhibit the symptoms you have mentioned.

BDog
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Author Comment

by:TechSupport
ID: 8110884
ok....i striped it down....hooked up the speaker and the switch and the main plug. then tried to boot. no beeps....just static. so i reseated everything and then tried again...still nothing. i think it may be the processor but i dont know how to tell. im just going to put that processor in another working computer and see if it works. this thing is really pissing me off.
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Expert Comment

by:Kyle Schroeder
ID: 8111066
static???  Like from the case speaker? Hmm, I think you may have one of the headers attached incorrectly (on wrong pins or reversed).  Does the CPU fan come on?  Check that the CLR_CMOS jumper isn't in the Clear position (usually 2-3, normal is 1-2).

What speed CPU are you using (and type, Duron or AthlonXP)?  From Giga-byte.com:
Q3. What are the types of processors this board can support?  
A3. With the latest BIOS, PCBs 3.1 or above can support 200/266MHz FSB, Thoroughbred(0.13u)/ Morgan (0.18u) Athlon XP/Duron CPUs and PCBs 2.0 or below can support 200/266MHz FSB, Palamino (0.18u)/Morgan (0.18u) Athlon XP/Duron CPUs.  

Check your PCB version (should be printed next to the model #)

You may just have a fault board, or it was damaged by ESD when you were setting it up...did you check hte power supply to see if it has a 115/230V red switch on the back of it?

-dog*
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Author Comment

by:TechSupport
ID: 8111408
no....the static seems like it comes from the board itself. the PS is set to 115v. the fan does not come on. the processor is a 900mhz athlon. im leaning towards the processor being bad but why wouldnt the fan come on? i currently dont have any jumpers on the board because i was told that the jumpers needed to be in place after the first post. anything else i could try?
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Expert Comment

by:snizle60
ID: 8111624
Have you checked the power switch speaker etc are plugged into the correct pins?
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LVL 1

Expert Comment

by:Baddog
ID: 8111781
Tech,,,
   Have you benched the Mainboard or is it still in the case? I think that you could have the board grounded somewhere on the case and hence the static sound. If you have pulled it from the case,,then remove the video card and power it up. You will not be able to see anything on the monitor, but you should be able to hear some beeps if the system powers up.

If you have a multimeter,,,you can check your voltages on the power connectors on the power supply.

On the peripheral connectors,,you should get +12v on the yellow wire and +5v on the red wire.

Here is a link to the voltage pinout of the 20-wire ATX connector (MoBo power connector):

http://www.duxcw.com/faq/ps/ps1.htm

Good Luck

BDog

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LVL 16

Expert Comment

by:Kyle Schroeder
ID: 8111784
Well you need some jumpers on the board, esp. the CMOS_CLR needs to be set to Normal function I believe (generally 1-2).  The FSB setting may be wrong also, my experience with Gigabyte is that they are really picky about their jumpers (funny, since most boards in the past 3 years haven't needed any at all to set CPU FSB speed, etc).  Have you tried powering it up with no cards and no RAM installed at all?  It should at least beep at you...

-dog*
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Author Comment

by:TechSupport
ID: 8112045
yeah i know right....it should at least beep. i think the speaker is hooked up right. it is within the "spk" brackets on the output pins. also the FSB is set to "off" (100mhz) in stead of "on" (133mhz) because the processor is only 900mhz. i see the spot for the bios jumpers but where they are supposed to be is capped off. the only jumper that i see is close to the bios chip and consist of 4 pins. one...then a space....then three more.  | |||

is that the clr_cmos....it doesnt have that writen next to it. i know what to look for but this board is setup kinda wierd. the giga_byte site is of no help to me. if the power supply is transmitting power why doesnt the fan come on. i have benched the board with nothing but the processor, switch, and speaker on it. hit the power....no beeps....nothing but a static discharge. the fan needs to come on before i go any further right?
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LVL 1

Expert Comment

by:Jimbo99
ID: 8112499
You should hear no noise from the mobo at all.  Fans yes, speaker  yes, but not from the mobo.

Pull the mobo out and put it on something like a phone book, plug in power (along with all the other minimally required devices) and try again.

If your system failes to produce the beeps it is either the mobo or the processor in almost all cases that I have encountered.  I fix systems for a living.

Try that processor in another mobo.
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by:akboss
ID: 10239204

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