Hi Chirality,
Yes it does seem to be a No Post situation on the computer. However, am sorry that the sequence of lights you have mentioned above do not match to our records here. We can still try a couple of steps and see the outcome. First lets try and remove residual power on the computer, which at times does cause interferance. The steps are as follows:
- Shut the computer down
- Remove any peripherals plugged in into the computer.
- Unplug the charger and remove the battery from the laptop
- Press and hold the power button down for 30 to 40 seconds
- Plug the battery first and then the charger back in.
- Power on the computer
Do you notice any change in behavior after powering on the computer? Are the sequence of lights the same? If not, then please reply with the new sequence. Another step that you can try is to reseat the memory modules on the computer and check if that helps. Also try to plug one memory at a time in each slot and see if it boots into windows. For instructions, here is the link to the service manual (refer to page 29)
Please reply with the findings.