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rockney
Blue Screen Again
Posts: 5
Registered: ‎09-22-2014
Location: U.S. Colorado
Views: 3,054
Message 1 of 11

Wrong power supply for Z710 + nVidia 745M + 16GB

Just got a Z710 with 16GB of RAM and an nVidia GeForce GT 745M video card.  It was manufactured 14/8/8.

 

But Windows 8.1 complains on every boot the "The connected power adapter cannot supply enough power. Use of this power adapter may lower system performance".

 

No one will do anything with this except let me return it. But Lenovo packaged the wrong power adapter so it is unlikely a new package will have the correct power.

 

Why wasn't a power adapter included that would actually power this laptop? That is utterly ridiculous!

 

Can anyone tell me which power adapter is the right one for this unit?

 


Edited:

 

Upon further digging it seems the supplied power adapter is 90W.  An nVidia 745M requires 25W - 30W so a 135W power adapter appears to be enough.  But does this Z710 have a UL-SDC power tip or a "Slim" tip?

 

PeterAultman
What's DOS?
Posts: 3
Registered: ‎10-12-2014
Location: Ontario, Canada
Views: 2,953
Message 2 of 11

Re: Wrong power supply for Z710 + nVidia 745M + 16GB

I have the same issue.

 

Anyone know what the fix is?

rockney
Blue Screen Again
Posts: 5
Registered: ‎09-22-2014
Location: U.S. Colorado
Views: 2,940
Message 3 of 11

Re: Wrong power supply for Z710 + nVidia 745M + 16GB

My issue was resolved by the 3rd-party seller. I made the purchase through a NewEgg partner, Antonline.com, who sent a 130W (20V 6.5 amp) power adapter at no cost. It just took a little while to work it out.

 

Overall I like this Lenovo hardware. But doing business with Lenovo is painful. Used NewEgg because Lenovo dropped the ball on a direct order.

PeterAultman
What's DOS?
Posts: 3
Registered: ‎10-12-2014
Location: Ontario, Canada
Views: 2,893
Message 4 of 11

Re: Wrong power supply for Z710 + nVidia 745M + 16GB

Thanks for the info.

 

I actually had the opposite experience.  Lenovo responded quickly and despite a short back order situation, I had the bigger power supply in 5 days.  Sadly my retailer admitted to knowing about the issue but wasn't interested in helping get a replacement part for me.

 

 

jimslater
Paper Tape
Posts: 4
Registered: ‎10-30-2014
Location: Denver CO
Views: 2,860
Message 5 of 11

Re: Wrong power supply for Z710 + nVidia 745M + 16GB

I just called Lenovo with the same problem, they answered right away and are sending me the correct 135 w power supply. Very impressed with their customer support.

rockney
Blue Screen Again
Posts: 5
Registered: ‎09-22-2014
Location: U.S. Colorado
Views: 2,854
Message 6 of 11

Re: Wrong power supply for Z710 + nVidia 745M + 16GB

Very cool ... was it purchased directly from Lenovo or a reseller?

Nollid1999
What's DOS?
Posts: 1
Registered: ‎11-12-2014
Location: Canada
Views: 2,832
Message 7 of 11

Re: Wrong power supply for Z710 + nVidia 745M + 16GB

Same what do i do

PeterAultman
What's DOS?
Posts: 3
Registered: ‎10-12-2014
Location: Ontario, Canada
Views: 2,821
Message 8 of 11

Re: Wrong power supply for Z710 + nVidia 745M + 16GB

Call Lenovo support for the replacement part

rockney
Blue Screen Again
Posts: 5
Registered: ‎09-22-2014
Location: U.S. Colorado
Views: 2,818
Message 9 of 11

Re: Wrong power supply for Z710 + nVidia 745M + 16GB

Did that and was told to go to 3rd-party. Did that and, although it took a little while, they came through. Lenovo wouldn't help.

 

But that's after an order Lenovo cancelled after waiting 3 weeks to tell me they didn't have any and weren't making them anymore - but these are a new line.

 

chrisjaz
Serial Port
Posts: 21
Registered: ‎01-07-2015
Location: France
Views: 1,952
Message 10 of 11

Re: Wrong power supply for Z710 + nVidia 745M + 16GB

I have an isssue with my battery , I have the Z710 however reading this could it be the power adapter , mine is 

 

Input  100-240v-1.5A 50-60Hz

Output  20V= 6.75A

 

I have contacted Lenovo reagarding the battery and they want me to send the battery i have back for testing , this machine is 2 months old and didn't get used intil 2nd 3 rd week in Jan as i was to ill to use it , it lasts for 1 hour 50 and is not right , i live in France the machine was bought in John Lewis in England my son and daughter bought it for me for my xmas and birthday present , they even said the battery life is really good Ha !! don't think so not mine anyway. 

You would think that Lenovo would just send a new battery out to me here in France .

The customer service is lacking something , customers are what count that is how they get the sales by customers saying how impressed they are , well i don't feel like that at the moment .

If someone can let me know if the power adapter is correct for my laptop 

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