W520 won't start: on/off button just flashes [ Edited ]

[eos]

Help!
Can't turn on w520. Power button flashes with 1s intervals
From power off, when press then round on/off button, the following happens:
1) power button starts flashing
2) DVD drive makes its startup noise.
3) power button continues flashing.

At this point nothing works, have to pull power plug.
No thinkpad splash logo, no way to get to bios.

Have tried the following:
1) removing power and battery for 10 mins
2) pressing the power button 30 times with no power or battery.
3) as above with 5s between presses.
4) holding down power button for 20s
5) removed all memory, msata , sata and DVD drive
Nothing had an effect.

Is it bricked?

[eos]

I guess it's dead. I had paid £300 for 3yr Nbd warranty. It expired 5 days ago. So now have to bin the docking station, 2x pus and 2x batteries, and a 2k laptop. The problem is there is no sub 2.5kg laptop on market which supports 2x 30" monitors except w540 or dell m4800, and would not go Lenovo again.

[richk]

Try pulling the memory and starting, including the ones under the keyboard. If you get the 1-3-3-1 beep code, try putting the DIMMs back one at a time. Bad memory chips can cause all kinds of errors.

[eos]

Hi, I pulled all 4 mem modules, same flashing power Btn of death. Get no beep codes

[richk]

The only other suggestion is to disconnect the cmos battery along with the main battery and AC, and doing what you described in the original post

[oledcrt]

When you said you removed all 4 memory modules, do you mean you pulled them all out and then tried to turn it on?  Because that's not going to help you at all.

Try each module once in each slot, and see if the machine starts with some combination.  You don't necessarily need to do it like that, though.  If module #1 doesn't work in slots #1 and #2, move on to module #2 in slots #2 and #3, etc.  See if anything works.

[eos]

Hi, any idea how to disconnect the CMOS battery? The only link I can find is to the manual download page, which doesn't work on an iPad. (Laptop dead...). I saw what looked like a battery next yo the msata drive under the keyboard, but it seemed to be sealed with no obvious connection.

[sarbin]

For completeness, the hardware maintenance manual may be obtained here:

http://support.lenovo.com/en_US/guides-and-manuals/detail.page?LegacyDocID=MIGR-76854

Below are snippets from the applicable pages in the pdf file, but I'd highly recommend having the full manual at hand, however possible, so that you can see better detail and any warnings.

Regards.

Spoiler

1030

1060-A

1060-B

1060-C

1100-A

1100-B

1100-C

1100-D

1120

[harrisb]

I don't think that this is a memory failure, but it does sound like more of a storage drive issue.

Which SSD is your boot drive? This sounds more like an SSD failure than a memory failure. Can you remove the MSATA drive first and then try to power up. If no joy, then remove the SSD from the main bay and try again. I'm assuming that you do not have an eSata drive connected.

[eos]

@harrisb, I tried removing both msata (windows boot drive) and main sata drive. Still get just flashing power button. No post, no beeps, no lenovo logo.