No beep diagnosis

[cure]

The manual says that a 600e that is not working, is getting power and firing up its fan, but that does not beep on start up has a problem with the system board.

I would like to know where that beep is generated. Through the speakers or somehow on the board itself? Equally, is there some minimum number of components that must be installed for a system board to beep? For example, would a working system board connected only to the power supply beep on start up?

Basically I have a 600e that has at least a partially bad subcard. But I am just about persuaded that that is not the key problem and that I would be wasting money to replace the subcard.

Thanx,

cure

[vanaya]

It is generated by speakers. I am currently fiddling with windows 98 install, and I am only connecting the keyboard with no bezel and do not get the beeps.

[cure]

That muddies the waters.

Will a 600e and/or 600x beep via the speakers minus the subcard? Or minus the inverter? And finally minus the keyboard?

My troubled 600x subcard has lost its connector for the keyboard and the wires that soldered the keyboard to the subcard have come off. Further, I suspect that the subcard was damaged by the previous owner in the process of the soldering since its LCD never worked.

My troubled 600e would only boot sometimes, the fan firing up, but nothing else, and the problem got progressively worse until it would never boot, only the fan firing up and never the LCD lighting nor the machine giving a beep. It subcard switch for the LCD panel has disintegrated. But I am not at all certain that that is the problem.

I would rather not buy new subcards for these machines if the problem lies elsewhere, so I need to establish that somehow. Thus the question of whether they should beep minus a subcard . . . .

Thanx,

cure

[vanaya]

With no cmos or hdd - No keyboard = beep - beep, then 08611 and 00192.

With cmos and hdd - No Keyboard = beep - beep, then 08611.

With cmos and hdd - No keyboard or subcard = no beeps with 00301 and 08611. The backlight will not be on but you can barely see the error codes. If you disconnect the subcard but leave the speaker microphone cable still connected you get the beep - beep and the 00301 and 08611 codes.

Any other questions, I can test for you!!

[cure]

With no cmos or hdd - No keyboard = beep - beep, then 08611 and 00192.

With cmos and hdd - No Keyboard = beep - beep, then 08611.

With cmos and hdd - No keyboard or subcard = no beeps with 00301 and 08611. The backlight will not be on but you can barely see the error codes. If you disconnect the subcard but leave the speaker microphone cable still connected you get the beep - beep and the 00301 and 08611 codes.

Any other questions, I can test for you!!

Well, with cmos, hdd and subcard in place and the subcard connected to the speakers but not connected to the lcd and not connected to the keyboard I get no beeps, no signs of life from the LCD, and no video when plugged into an external monitor. And indeed there is never any beeps, signs of life from the LCD, or video when plugged into an external monitor either. Is there any other conclusion than that the motherboard has died? The progression from only sometimes posting, to rarely, posting, to never posting is something that I have previously seen in a desktop motherboard demise.