ASUS A7N8X Deluxe - No beep - No talking - No Working - Ideas?

[mikeki]

After finally getting my I/O plate, I put together a system with an ASUS A7N8X Deluxe and Sonata Case. After getting the system assembled, when I turn it on, all the fans come on the LED on the motherboard lights up, but after that, nothing. No beeps, no verbal prompts (a M/B feature I guess), no nothing.

I've done the following:
1. Reset the CMOS
2. Checked all the jumpers.
3. Tried two different video cards and no video card
4. Tried two different sticks of RAM and no RAM
5. Disconnected everything but the CPU (I have to remove the Motherboard to get the CPU out).

Any ideas before I take the whole darn thing apart?

I hope I didn't munch the CPU putting the heat sink on it. Also if it matters the MB was a refurb I purchased from NewEgg.

Thanks in advance.

[mikeki]

Also, this is my first AMD system. It appears it only needs the ATX power connector. The documentation doesn't say anything about connecting either of the other two power connectors from the Antec PS.

[kenrippy]

you could have cracked the cpu, or just a bad mobo. i don't trust refurbs.

edit: you DO have the cpu fan plugged into the cpu fan header don't you? that might cause it to not boot cuz of the fan detection alarm.

[mikeki]

The CPU fan is a Aero 7 Lite, and the connector that plugs into the MB only has one wire plugged into it. It's the yellow, which I believe is the fan speed sensor wire. The actual fan is powered from a Molex coming out of the PSU.

I believe this is plugged in correctly (triple checked). I even tried plugging the PSU fan sensor into that connector, and no go. Thanks for the quick reply.

It's really strange that there are no beeps or voice. According to the manual this MB will say something if there is no CPU plugged in.

As a side note, the combination of the A7N8X, Sonata and any reasonbly sized heat sink is bad. The A7N8X puts the processor socket on the very edge of the MB and when you attach a huge heat sink to it, you can't do anything to it while the MB is installed. There is only about 1.5cm between the heat sink and the case PSU. This MB should be used in fullsize cases only. Live and learn. This is only my second build and first AMD.

[allanv]

are you connecting the speakers to the onboard audio because thats where the voice comes from..

Also check the cmos jumper my exact same board came with the jumper set to clear took me a while to work that one out ...

Also check the MB isnt grounding to the case somehow or a spacer isnt in the worng place and shorting the MB


Regards

Allanv

[Blue_MiSfit]

I had the same problem with my board. It would not POST at all.

Try the following to determine if it is indeed the motherboard causing the problems

1) Take the board out and put it on something nonconductive *cardboard*

2) Hook up only the Power, Video, RAM, Power Switch, CPU, and HSF.

3) Fire it up.

if you get a POST and some bios action, then you are shorting out somewhere. However, I had this problem and after I fixed the short *electrical tape on the spacers* the bastard worked for a day and then died completly.

If you get nothing either ur cpu is cracked or the board is ****ed. RMA that ****.

I went through 2 a7n8x deluxe boards before i switched to an MSI K7N2 Delta , and have had no problems since.

[mikeki]

Thanks for the advice. I'm getting ready to remove the board and hook it up outside the case.

[Garion2K]

Originally posted by mikeki
Also, this is my first AMD system. It appears it only needs the ATX power connector. The documentation doesn't say anything about connecting either of the other two power connectors from the Antec PS.

For what it's worth, the power supply that comes with the Sonata will work fine on the A7N8X. Just use the 20 pin plug from the power supply.

I know you said you rechecked all the jumpers, but one more time couldn't hurt... make absolutely certain that the Clear RTC (CLRTC1) jumper is on pins 1+2. I've seen several problems just like yours caused by the jumper being set wrong.

Edit: Make sure that you turn the switch on the back of the powersupply to the ON position too (I say this because I forgot to do this too - my old PS didn't have a switch)

Good luck!!!

[mikeki]

Still nothing when everything is out of the case.
Still nothing after trying a 2000+ (that works in another system) in this MB.

Will the 2500+ Barton work in an ECS K7S5A PRO? I tried it and it didn't POST. I don't think the ECS board supports the 333MHz FSB of the 2500+.

I called Newegg and got an RMA number for the both board and the processor. It sucks because they won't cross ship processors so I have to wait for everthing to go back.