Sign in with
Sign up | Sign in
Your question
Solved

GIGABYTE GA-880GA-UD3 powers but nothing else

Last response: in Motherboards
Share
September 2, 2011 12:26:36 PM

I just picked up a GIGABYTE GA-880GA-UD3, rev 3.1 board and am having some problems getting it functional.

I mounted this CPU which appears to be on the supported list:
AMD Phenom II X4 975 Black Edition Deneb 3.6GHz Socket AM3 125W Quad-Core Desktop Processor HDZ975FBGMBOX

I mounted 4 sticks of this memory:
G.SKILL 2GB (2 x 1GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Dual Channel Kit Desktop Memory Model F3-10600CL8D-2GBHK

Looks like the memory isn't on their list, though a similar model (F3-10666CL8D-4GBHK) is. Oh crap, did I just answer my question here?

The behavior I'm getting is that the machine powers on, you'll hear it seeking or something on the CDs drives, but that's it. I don't have a speaker on my case so no beeps for me. Is it just that the memory isn't compatible?
a b } Memory
a c 125 V Motherboard
September 2, 2011 1:01:57 PM

Unlikely that the ram compatibility is an issue - although it is possible. Are you sure all your power connectors are hooked up? To the video card also?
m
0
l
September 2, 2011 1:25:23 PM

It's a silly thing but is RAM in the proper channels? Your board goes 1/2/3/4...so either the first pair or last pair.
m
0
l
Related resources

Best solution

a b } Memory
a c 156 V Motherboard
September 2, 2011 1:45:22 PM

You need a case speaker. If your system isn't booting, you really, really, need a case speaker. You can buy one for a couple of bucks or you can scavenge, maybe salvage is a better word, one from an old case.

Without one, you will be limited to randomly changing parts.

You also need to post your complete system specs. Choice of power supply and video card may make a difference.

Now, onward to some systematic troubleshooting techniques.
If a new build, start here:

Work systematically through our standard checklist and troubleshooting thread:
http://www.tomshardware.com/forum/261145-31-read-postin...
I mean work through, not just read over it. We spent a lot of time on this. It should find most of the problems.

If no luck, continue.

If a not new build (a formerly working computer), start here:
The following is an expansion of my troubleshooting tips in the breadboarding link in the "Cannot boot" thread.

I have tested the following beep patterns on Gigabyte, eVGA, and ECS motherboards. Other BIOS' may be different, but they all use a single short beep for a successful POST.

Breadboard - that will help isolate any kind of case problem you might have.
http://www.tomshardware.com/forum/262730-31-breadboardi...

Breadboard with just motherboard, CPU & HSF, case speaker, and PSU.

Make sure you plug the CPU power cable in. The system will not boot without it.

I always breadboard a new build. It takes only a few minutes, and you know you are putting good parts in the case once you are finished.

You can turn on the PC by momentarily shorting the two pins that the case power switch goes to. You should hear a series of long, single beeps indicating memory problems. Silence indicates a problem with (in most likely order) the PSU, motherboard, or CPU. Remember, at this time, you do not have a graphics card installed so the load on your PSU will be reduced.

If no beeps:
Running fans and drives and motherboard LED's do not necessarily indicate a good PSU. In the absence of a single short beep, they also do not indicate that the system is booting.

At this point, you can sort of check the PSU. Try to borrow a known good PSU of around 550 - 600 watts. That will power just about any system with a single GPU. If you cannot do that, use a DMM to measure the voltages. Measure between the colored wires and either chassis ground or the black wires. Yellow wires should be 12 volts. Red wires: +5 volts, orange wires: +3.3 volts, blue wire : -12 volts, violet wire (standby power supply): 5 volts always on. Tolerances are +/- 5% except for the -12 volts which is +/- 10%.

The gray wire is really important. It should go from 0 to +5 volts when you turn the PSU on with the case switch. CPU needs this signal to boot.

You can turn on the PSU by completely disconnecting the PSU and using a paperclip or jumper wire to short the green wire to one of the neighboring black wires.
http://www.youtube.com/watch?v=5FWXgQSokF4&feature=yout...

A way that might be easier is to use the main power plug. Working from the back of the plug where the wires come out, use a bare paperclip to short between the green wire and one of the neighboring black wires. That will do the same thing with an installed PSU. It is also an easy way to bypass a questionable case power switch.

This checks the PSU under no load conditions, so it is not completely reliable. But if it can not pass this, it is dead. Then repeat the checks with the PSU plugged into the computer to put a load on the PSU.

If the system beeps:
If it looks like the PSU is good, install a memory stick. Boot. Beep pattern should change to one long and several short beeps indicating a missing graphics card.

Silence, long single beeps, or series of short beeps indicate a problem with the memory. If you get short beeps verify that the memory is in the appropriate motherboard slots.

Insert the video card and connect any necessary PCIe power connectors. Boot. At this point, the system should POST successfully (a single short beep). Notice that you do not need keyboard, mouse, monitor, or drives to successfully POST.
At this point, if the system doesn't work, it's either the video card or an inadequate PSU. Or rarely - the motherboard's PCIe interface.

Now start connecting the rest of the devices starting with the monitor, then keyboard and mouse, then the rest of the devices, testing after each step. It's possible that you can pass the POST with a defective video card. The POST routines can only check the video interface. It cannot check the internal parts of the video card.

Share
a b } Memory
a c 151 V Motherboard
September 7, 2011 7:22:23 PM

You probably need to make sure the voltage & timing and etc is set correctly in the BIOS.
m
0
l
September 9, 2011 2:10:35 AM

Best answer selected by KakarisMaelstrom.
m
0
l
September 9, 2011 2:11:37 AM

I was shocked to learn that something had gotten under the board and was short-circuiting it. The guide posted by jsc ultimately did solve my problem.
m
0
l
!