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eos
802.11n
Posts: 470
Registered: ‎06-30-2011
Location: GI
Views: 7,122
Message 1 of 16

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

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
802.11n
Posts: 470
Registered: ‎06-30-2011
Location: GI
Views: 7,087
Message 2 of 16

Re: W520 won't start: on/off button just flashes

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.
Community SeniorMod
Community SeniorMod
Posts: 9,670
Registered: ‎01-01-2010
Location: US
Views: 7,077
Message 3 of 16

Re: W520 won't start: on/off button just flashes

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.

Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
eos
802.11n
Posts: 470
Registered: ‎06-30-2011
Location: GI
Views: 7,061
Message 4 of 16

Re: W520 won't start: on/off button just flashes

Hi, I pulled all 4 mem modules, same flashing power Btn of death. Get no beep codes Smiley Sad
Community SeniorMod
Community SeniorMod
Posts: 9,670
Registered: ‎01-01-2010
Location: US
Views: 7,043
Message 5 of 16

Re: W520 won't start: on/off button just flashes

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

Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
oledcrt
Token Ring
Posts: 54
Registered: ‎06-08-2014
Location: United States
Views: 7,032
Message 6 of 16

Re: W520 won't start: on/off button just flashes

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
802.11n
Posts: 470
Registered: ‎06-30-2011
Location: GI
Views: 7,020
Message 7 of 16

Re: W520 won't start: on/off button just flashes

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.
Community SuperMod
Community SuperMod
Posts: 5,455
Registered: ‎06-26-2008
Location: US
Views: 7,013
Message 8 of 16

Re: W520 won't start: on/off button just flashes

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
0.jpg

 

1030

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1060-A

1060-a.jpg

 

1060-B

1060-b.jpg

 

1060-C

1060-c.jpg

 

1100-A

1100-a.jpg

 

1100-B

1100-b.jpg

 

1100-C

1100-c.jpg

 

1100-D

1100-d.jpg

 

1120

1120.jpg

 

 


Community GuidelinesSearchPrivate MessagingENDEESPTRUUACZ-SKTRMoto
PM requests for individual support are not answered. If a post solves your issue, please mark it so.

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Guru
Posts: 1,832
Registered: ‎04-20-2008
Location: US
Views: 6,997
Message 9 of 16

Re: W520 won't start: on/off button just flashes

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.


P70 XEON 1505, BIOS 2.31, UHD 4k Display, 64GB, M3000M NVIDIA GPU, RAID1 1TB Samsung PM981 PCIe-NVMe SSD x 2, 2x Samsung 850 Pro 1TB SSD. EM7455 WWAN
P1. BIOS 1.23,Xeon Processor, 32GB, PM981 1TB x 2, RAID1
T470s, 16GB RAM, BIOS 1.10, i7-7500, WQHD display, 512GB PM961 PCIe NVMe SSD
eos
802.11n
Posts: 470
Registered: ‎06-30-2011
Location: GI
Views: 6,993
Message 10 of 16

Re: W520 won't start: on/off button just flashes

@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.

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