I just got a Lenovo IdeaCentre K410 - and the stock video card would not like working with my HDMI-plugged monitor, so I needs to get a PSU from somewhere to actually be able to use the upgrade - stock was a GeForce GT 610 - replacement is a GT 630.
I have had no luck trying to locate a newer better PSU through Lenovo itself, aside from getting a round or three of Musical Phones.
It took wrangling, but I managed to secure an Antec BP430, but even that seems not to be terribly helpful, as the video card's fan spins up, but no signal is produced. As far as I can tell, the system is fully operational otherwise.
The PSU list from the manual includes a loooong list that are mostly from one particular manufacturer in Taiwan, that I have never seen before, and is NOT offered on anything aside from maybe eBay.
This is a significant part of the list:
HuntKey HK380-12GP S2(S7) ATX280W Power Supply 36-200158
LiteonPS-5281-7VR5-RoHS ATX280W Power Supply 36-200157
AcBelPC6001-EL9G ATX280W Power Supply 36-200156
FSP280-50EPA ATX280W 85% Power Supply 36-200161
LiteonPS-5281-02VA-RoHS ATX280W 85% Power Supply 36-200160
AcBelPC9008-EL1G ATX280W 85% Power Supply 36-200159
AcBel PC7033-EL0G 450W NEW CABLE Power Supply(R) 36-001873
AcBel PC6001EL6G ATX 280W Robust Power Supply(R) 36001720
HuntKey HK38012GP S2 ATX 280W WW Power Supply(R) 36001795
Liteon PS52817VR4ROHS ATX280W TW cap Power Supply 36002064
HuntKeyHK38012GP S2(S6) ATX280W Power Supply® 36002008
PS52817VR2RoHS 280W Robust Power® 36001721
AcBel PC6001EL8G ATX280W Power Supply 36200020
Liteon PS528102VA ATX 280W 85plus Power Supply(R) 36001697
AcBelPC9008EL0G ATX 280W 85plus Power Supply(R) 36001698
FSP28050EPA ATX 280W 85plusPower Supply(R) 36001699
Liteon PS53117VR3 110V/220V 310W Power Supply(R) 36001874
HuntKeyHK41011FP 110V/220V 310WPower Supply® 36002011
AcBel PC7033EL0G 450W NEW CABLE Power Supply(R) 36001873
AcBelFS8003EL1G 625W Power Supply® 36001663
ACBEL FS8003EL1G ES5.0 625W PSU® 36200221