2
I work for a manufacturing company and one of our quality devices is a photometer. This photometer is hooked up to an Advantech IPC-6806 WHB-20Z running Windows 98 Embedded. We suffered a power outage over the weekend and now the machine will no longer boot up. We pulled it off the floor to diagnose and found that it was giving us a beep code where it just beeps in a slow, steady rhythm. I pulled the main board to try and figure out what the BIOS is so I could track down what the beep code means. The main board is a PCA-6178VE (user manual I'm using) which connects into a backplane and I found this site which says that the beep should be the RAM. Since it was only a single stick of 128MB PC100 RAM we bought a new stick and had it overnighted. We put in the new ram and got the same beep code.
Now I'm at the point where I don't know what to do. I could order more RAM in case the stick we got was DOA. I've found the board and CPU on Ebay so I could order that but they all ship from china and won't be here for 2-4 weeks. Is there anything I'm missing in diagnosing this? Should I get more RAM just in case or does it sound like it is the board, not the RAM that is the issue?
NathanOliver
Posted 2019-07-23T15:56:00.313
Reputation: 123
Have you tried resetting the CMOS settings (J1)? Move the jumper from 1-2 to 2-3 for a few seconds while the system is plugged in (not turned on), then put it back. Does it allow the system to boot? – Canadian Luke – 2019-07-23T16:07:37.073
@CanadianLuke That did not help. – NathanOliver – 2019-07-23T16:13:25.697
Can you take a volt-meter to the pins on the power supply? Ensure you're getting 3.3V, 5V and 12V as required? I'm not sure if the power supply is new enough that it needs a physical switch to turn the system on instead of momentary contact, but there are diagrams on Google of what voltages should be coming out of which pins – Canadian Luke – 2019-07-23T16:16:44.280
@CanadianLuke It's an old school, manual switch for the power. I'll need to find the pinout for the plug but in the mean time I noticed that on the adapter board there are power LED's and the +3.3V and the 5VSB are not light up. – NathanOliver – 2019-07-23T16:24:55.413
That's my next thought is the power supply. Usually, the wires are colour-coded, so that will help you figure out what to expect – Canadian Luke – 2019-07-23T16:28:05.607
@CanadianLuke I got the specs and check all of the voltages. It is using an AT connector with only +-5 and +-12 volts and those all check out at +-4.9/5.0 and +-11.9/12.0. – NathanOliver – 2019-07-23T16:41:02.757
There is an area on the backplane for an ATX power supply. Do you have a spare one to try? – Canadian Luke – 2019-07-23T16:55:44.440
I believe so. I'll give that a try. – NathanOliver – 2019-07-23T16:59:58.710
@CanadianLuke Just an update. Tried another PS, same results. We are deciding now on just buying a new machine or getting used parts from China. Thanks for the help. – NathanOliver – 2019-07-30T21:25:41.733