Darkbreeze :
Yes, the Lenovo doesn't even have a PSU that on paper is rated for what the included GPU calls for. The one in the other unit, if it actually is an Antec Truepower 500w psu might be ok, depends on the model number, but I wouldn't count on it. Pre-built systems almost, almost, always come with as cheap of a psu as they can get away with. Not always, but usually.
For 999.00 and probably a bit less, you could build a much better, more reliable system than either of those. Do you have an OS already? What is your main use, gaming, video, other stuff? Do you have a preference of Intel or AMD processor family?
Yeah i know they usually build with cheap psu. So can you give me a build you think is good?
I don't have an OS, and this is for gaming or maybe school stuff in the future. I prefer Intel with Nvidia.
How about I go with this one? https://www.cyberpowerpc.com/system/Zeus_Mini-I_760/
just change the i5 to i7, is that okay? it costs $1055 with this specs:
CPU: Intel® Core™ i7-4790 3.60 GHz 8MB LGA1150 [+70]
HDD: 1TB SATA-III 6.0Gb/s 32MB Cache 7200RPM HDD (Single Drive)
MEMORY: 8GB (4GBx2) DDR3/1866MHz Dual Channel Memory (Corsair Vengeance)
MOTHERBOARD: GIGABYTE GA-Z97N-WIFI Mini-ITX w/ 802.11ac WiFi + BT 4.0, Dual GbLAN, 1 PCIe x16, 4x SATA 6Gb/s (Pro OC Certified)
SOUND: HIGH DEFINITION ON-BOARD 7.1 AUDIO
VIDEO: NVIDIA GeForce GTX 760 2GB GDDR5 PCIe 3.0 x16 Video Card (Single Card)
Power Supply: 800 Watts - Standard 80 Plus Certified Power Supply - SLI/CrossFireX Ready