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Power supply for lenovo Legion T730 (RTX2080 + i9 9900K)

2019-01-30, 18:03 PM

I just bought the  T730 but realized that it only comes with 500W power supply. I'm not an expert on this but I feel it is not sufficient to power both RTX2080 and i9, but I also feel Lenovo should not make a mistake like this. Do I need to get a more capable power supply? How many watts do I need? Also if I swap the PSU, will my warranty be void? Thanks! 

Here are the specs:

T730 with NVIDIA RTX 2080 Graphics
Part Number:  90JF005MUS
Web Price: $2,039.99
 Processor 9th Generation Intel® Core™ i9-9900K Processor (3.60GHz, up to 5.0GHz with Turbo Boost, 16MB Cache)
Operating System Windows 10 Home 64
Memory 16.0GB DDR4 2666MHz
Hard Drive 1TB 7200 RPM+256GB PCIe SSD
Optical Drive DVD Recordable
Warranty One year Mail-in
Graphics NVIDIA GeForce RTX 2080 8GB
Keyboard USB English Keyboard Pointing Device USB Optical Mouse
WiFi Wireless LAN Adapters 802.11 AC (2 x 2) + Bluetooth® 4.2
Power Supply 500W
Cooling System 130W Air Cooling

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Re: Power supply for lenovo Legion T730 (RTX2080 + i9 9900K)

2020-02-03, 4:54 AM


No idea if it voids the warranty, but otherwise you're absolutely right. Investing in a sufficient power supply is a must, i would suggest anything above 650w. 

Surely, if you would like to upgrade some hardware in the future, the bigger the power supply the better space you have for future upgrades.

Good luck


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Re:Power supply for lenovo Legion T730 (RTX2080 + i9 9900K)

2020-04-12, 18:35 PM

i also have the same question.. I'm about to upgrade from 500W to 650W+ PSU since my LEnovo T730 with the same specs is suffering a Power Throttling. is there an issue if i upgrade to 650W. Will the MObo able to handle higher PSU.


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Re:Power supply for lenovo Legion T730 (RTX2080 + i9 9900K)

2020-04-21, 12:07 PM

I don't think it voids the warranty, but the warranty is only on original parts; it likely wouldn't be good if your new PSU fried your GPU as Lenovo would not replace it. That's the risk you would take though and I would say you are less likely to do that by getting a decent PSU from a known supplier and at least an efficiency rating of Gold.


Also, in regards to "frying the motherboard", that's not exactly how it works. The power that is drawn from the PSU at 650W isn't always 650W, it just depends on what your individual components are drawing. So, your CPU only takes what it needs, your GPU etc. 


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Re:Power supply for lenovo Legion T730 (RTX2080 + i9 9900K)

2020-09-04, 20:32 PM

This pc should be recalled. I bought it and you are absolutely correct--the PSU is underpowered. Nvidia site suggests 650W min to run this graphics card. I'm experiencing boot issues and kernel-power 41 (63) issues on a brand new computer.....

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