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Upgrading Power Supply? K450

2013-07-17, 22:51 PM

I recenly bought a IdeaCenter K450-57315521 it comes with what looks like a 280watt Power supply would it be safe to upgrade this to a 500 or 600watt power supply just to be safe or if i wanted to add an aditionnal 250gb internal hard drive?




2TB Hard Drive

Gtx 650

12gb ram



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Re: Upgrading Power Supply? K450

2013-07-18, 14:56 PM

hi Fort3,


Welcome to Lenovo Community Forums!


   If your Planning on an upgrade, Yes It is definitely safe to upgrade the Power Supply even to a 600w or 500,

But Judging on the K450 Casing, this is somehow like the K410 which also may have one connector that you will not find on a replacement PSU

this is the Connector From the Lenovo OEM PSU

This is For powering up the Case feature  such as light and the performance switch on top of the case,


Other Users with k410 who did an upgrades said that they just let the light and the switch off without the connector and there were difference in performance,


Some Did an Upgrade like on this thread,



Hope this Helps,


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Re: Upgrading Power Supply? K450

2013-11-05, 23:04 PM

I am looking at buying a K450 factory model with the 2GB NVIDIA GeForce GTX 650 card installed. All the specs tell me it has the unbelievably small 280 watt supply. 


Here's where things get confusing, according to the NVIDIA the card requires a minimun power supply of 400 watts. What am I missing?  




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Re: Upgrading Power Supply? K450

2014-07-01, 3:47 AM

I can't believe Lenovo would ship this upscale computer with a puny 280W PS when the specs for the standard, included NVidea GTX650 Graphics card recommends a 650W PS!!   What is up with that?  I haven't even started this new computer and I'm already concerned that I have to upgrade the power supply?  I will be adding another hard drive and an SSD and there isn't enough juice to power the components without the additional load.


Now, I'm advised by the post below that it is a proprietary power supply with a special connector for an important feature of this K450:  the variable power switch.


Can someone explain this to me?  Is it a mistake?  Where can I get a replacement PS that has the necessary connectors?  This is my first Lenova after many Dells.  I'm already regretting it.

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