asus a7a266 problems

[tcc2f6]

Okay, new motherboard, new everything. 350watt power supply, 1.33 amd with two sticks of 256 crucial DDR. Right now I just have the ram, processor and Video Card in. I turn it on, in attempts to get to the Bios and I can't get there. Keyboard lights turn on for a sec but nothing to the monitor. I have tried different monitors and a different video card (one that is working on a different computer). No luck.

As suggested earlier in a different thread I switched the jumper near the AGP slot to work with 2 DIMM's, but still nothing. I even tried without any RAM, and still it won't even register with the monitor.

Anyone have any ideas on how I could get this working?

 

[AndyGet]

you'll probably need to get a 1.2 chip instead of the 1.33 which is not currently supported by your MB. If you go to the 1.2 you don't need to set any jumpers. Just set the BIOS setting to 100/100/33 if you use PC2100 DDR.

 

[zogg]

I dont see why a 1.33 wont work in his board. I have the same board and the same chip. Mine booted the first time before I upgraded the bios.

The bios doesnt work off the cpu anyway...it's an eeprom. That loads the bios setup screens.

Unless maybe the cpu chip got damaged when installing the heatsink which happens easily on amd tbirds I hear. In that case maybe the bios detects a bad cpu and thats why you cant get in it.

Are you sure you have the case wiring done properly?

Make sure you have the power connector and standby connected properly.

Also are your ide and power led wires from the case connected to the mother board properly.

Is the floppy drive connector cable on properly or does it lite right way as soon as turn on power? If it does reverse the floppy cable.

Make sure you have the blue end of the ide connector on the mother baord side and not the hard drive side.

Make sure your hd jumper is set properly and you are on IDE connector "0" and the master hard drive is on the end of the cable not the middle and not on the blue end.

I would install just the power on wire and speaker wire to mother board connector and leave off the led's and standby switch and case alarm if you have one untill yoiub get it to the bios then connect one by one until you figure out if your wiring is messed up.
also check your mother baord that its not shorting in anyway to the frame or something in the case.
If all your wires are connected properly and your peripheals like floppy drive cdrom, memory, and hard drives are connected properly and jumped properly .. THEN YOU MIGHT HAVE a bad board or cpu

good luck and hopefully its just a misplaced wire


zogg

 

[Ak]

At the time of building new PC you need multiple MOBOs, CPUs. Otherwise you can't be sure which part is failing. Please try to boot just with CPu and AGP amd RAM. If you don't see anything on the monitor, you need to look closely to your component. Motherboards usually don't come DOA. Please also check Power Button. ATX power on button is very tricky.

AK

 

[tcc2f6]

Thanks for all the replys, I appreciate them.

At the time, when I just had my RAM, AGP Video Card and processor in, I can't get anything. The monitor (which if unplugged from a computer and turned on has a screen saying no connection) was plugged in, that screen was gone, but when turning on other computers with it, the light will turn green a second or two after being turned on, like it has finally registered. It never does that with this.

The only case wires I have in are the power switch and the speaker. Still nothing, not even a noise. The motherboard will come on, and the heatsink fan. I hold the power switch for about 6 seconds and the fan will stop, and I can press the power button on the case again and it will start again.

So I went to my friends place. Tried his SDRAM in place of my DDR Ram. Nothing. Tried his video card in place of mine. Nothing. Tried his processor (1.0 AMD) and nothing. We then threw my stuff into his, except the DDR as he didn't have a DDR Board. Processor wouldn't work, but my video card did work with all of his stuff. Faulty mobo and cpu? I've tried overclocking underclocking and tried many different jumper settings..to no luck.

 

[zogg]

I find it highly unlikely that your mother board and cpu are both defective. The odds against that are high I would think.
The fact that your cpu doesnt work in your friends board may mean nothing if his board cant support a 1.33 gig cpu.
It also comes to mind that maybe you should try taking your mother board out and reinstalling it in the case again carefully. Or another case.Because you could have a short against the case.
Did you inspect the pins on the t-bird chip its self. Are there any bent pins?
If you connected the golden bridges maybe you shorted a bridge or two .
I still think that if your cpu was bad you would be able to get into the bios unless of course the mobo is shortedd then evrything would be brought to ground and nothing would work.

 

[tcc2f6]

The cpu itself looks like it is in good shape. Nothing is bent or anything.

I have re screwed in my motherboard with the same results. Nothing overly tight or such.

Is there any way to make sure that I haven't grounded it besides trying a different case?

 

[BriBe]

Interestingly not one person mentioned that you probably have a dead power supply. If you get the passthru to light up the power led on the mb but the atx soft power up does nothing... sounds like a dead power supply. Welcome to the world of Thunderbirds, where they eat powersupplies for every meal not just breakfast. Most of the time there is nothing wrong with cpus, most of the failures with motherboards are shorts due to inexperienced installation. If you think you did that portion of the installation correct, assume you did and try a new power supply. The problem with do-it-yourselfer's is that we simply dont have access to enough hardware to find out what is going on... sometimes paying a store to do your upgrade for you pays off... especially with the new AMD's.

 

[tcc2f6]

We thought it may have been a bad power supply sending some spikes. My case came with a 350 watt. The light on the mobo itself lights fine. My friend has a 300watt power supply, and we still had the same results.