|"Product: Compaq deskpro pc / Sr5010nx"|
It appears there's no such model.
Compaq Presario SR5010NX Desktop PC (a.k.a. COMPAQ PRESARIO SR5010NX HOME PC )
(support home page)
I found nothing that shows a close up of the computer case front.
You MAY already have User Guides for your model.
There MAY be info about your case front features in one or more of those.
Look under All Programs - User Guides.
Most Compaq desktop computers have just two leds on the front of them - one for power - it may have a lit up light bulb symbol near to it - and a hard disk activity led - it may have a cylinder symbol near to it, like a can you can see the top of .
The power led may or may not be two leds in one - have two colors, the second color being for a sleep mode (Standby or Hibernate).
Product Number : RZ537AA
Description : COMPAQ PRESARIO SR5010NX HOME PC
The case and it's part number is not listed.
5043-0071 Power LED holder - Fits into a notch on the top, right front of the chassis
5043-0069 Power indicator light pipe - Mounts on the top, right corner of the chassis
5043-0070 Hard drive activity light pipe - Mounts on the top of the chassis
Nothing about a third led.
The power led may blink when the computer is in a sleep mode:
There is an led on the power supply on the back of the case on many Compaq desktop computers - it may blink when there's something wrong
"...the first site i was on told me, it was my motherboard going out and would need to be replaced before it wiped itself clean."
Obviously if you were having no problems with the computer, that's not relevant.
Some brand name computers - e.g. many Dell desktop models - have diagnostic leds (a.k.a. lights) on the front of the case - but I've never seen or heard of that for Compaq home user desktop computers.
Those diagnostic leds are usually supposed to be either all not lit or all lit one color when there's nothing wrong with the computer and the mboard has fully booted - any other pattern or a blinking led indicates a hardware problem, but you don't see that if there's nothing wrong.
Some generic systems have a plate in a slot at the back of the desktop computer that has diagnostic leds on it - that connects to the mboard. Similar applies.
Most mboards have one led on the surface of the mboard (inside the case) that lights up at all times, even when the computer is not running, when there is live AC power connected to the power supply, the power supply switch is switched on if it has a switch (on the back of the case), and the power supply is connected to the mboard. That led should never blink. It's there to remind you the ATX mboard is always powered by the ATX power supply in some places even when the computer is not running, and you need to disconnect or switch off the AC power to the computer / power supply whenever you fiddle with any connection inside the desktop case.