Trying to find where the problem lies

August 4, 2012 at 13:28:16
Specs: Windows 7 (AMIBIOS), Core i5
I am Troubleshooting an Inspiorn 580 desktop for a client. They told me before they called me, they spoke with Dell and reported 4 beeps. Dell is telling them it is a memory failure.

Along I come, I plug in their CPU, and there are NO beeps at all. Not even the general POST single beep, and no video. I removed all memory modules and power it back on and get two beeps (again, no video), which according to AMIBIOS is a parity error, and recommends memory replacement. I put in each module, one by one, into slot 1 to see if it will boot or even POST, but non of the three modules will boot the PC and don't even present any beeps and still no video.

I also unplugged all peripherals and, fans, etc. (just keeping the hard drive powered), to ensure the power supply wasn't being over loaded, and continued to test each module in slot 1 again, but still nothing at all. I can hear the hard drive spin up, and there is an amber light on the motherboard and a green light on the power supply. Only devices plugged in are keyboard, monitor and power cord. And I have cleared the BIOS as well.

At this point, I am leaning towards this being a motherboard issue. Anyone have any thoughts on what it might be or anything I could have overlooked?


See More: Trying to find where the problem lies

Report •


#1
August 4, 2012 at 13:55:39
Try each of the memory slots one by one with each module. There may be something wrong with one or more of the slots as well as the modules themselves.

You can snap each module in 4 or 5 times to burnish the contacts.


Report •

#2
August 4, 2012 at 20:32:33
Does the cpu(processor) fan spin up, and though it probably won't help, unplug the hard drive if you're trying to test for bad RAM and/or a bad motherboard.

Report •

#3
August 5, 2012 at 09:37:28
"I plug in their CPU"

The CPU is a chip that fits into a socket on the motherboard.

Dell Inspiron 580 specs

"I removed all memory modules and power it back on and get two beeps (again, no video)"

No memory installed = no video display. And since you're working with a Dell, you have to look at the Dell beep codes, not AMI beep codes. 2 beeps = No memory modules are detected, which obviously is correct because you removed all the RAM.

Dell BIOS beep codes

"I also unplugged all peripherals and, fans, etc. (just keeping the hard drive powered)"

Why would you leave the HDD connected? You don't need drives for troubleshooting. Unplug all of the "un-necessities". All you need is a keyboard (PS/2 if possible) & monitor connected externally. No mouse. Internally, all you need is the CPU w/HSF & one stick of RAM. No cards, no HDD, no optical drive, no floppy, no fans except the CPU fan (which is an absolute necessity).

"there is an amber light on the motherboard"

The amber LED indicates that the board is receiving standby power (aka flea power). It does not indicate a problem.


Report •

Related Solutions


Ask Question