Question Do i have enough headroom in my psu?

[crossram07]

Hi! I recently was gifted a lenovo v50t gen2, and was looking to turn it into a gaming pc as a project, but the upgradability path on it is pretty limited. The maximum wattage psu it can be upgraded to is 380 watts (oem mobo).The psu is platinum rated at 91%, and the gpu im planning on putting in there is either a rtx 3050, or a gtx 1660 ti.

I have pcie 3.0 so any amd gpus better than that arent really an option, and those are both all ill need until 2 or 3 years from now.

The 1660 ti is 120 watts and the max wattage recorded is 132. The 3050 is 130 watts with 20ms spikes up to 150 watts.My entire system takes up about 120 watts, 150 watts if you overestimate for extra assurance.

With both values of the gpus at their listed wattage and the rest of the system at 120 watts, the 1660 ti would leave me 140 watts of headroom. With overestimation for assurance on both the gpu and system, it would leave 100 to 97 watts leftover.For the 3050, the advertised wattage + non-overestimated system, it would leave 130 watts of headroom.

Factoring in the power spikes of the 3050 and overestimating, i would only have 80 watts left over for 20 ms. Considering the max power draw WITHOUT power spikes but still overestimation on both, i would have 90watts leftover on max usage.

Would there be any issues making the upgrade to either of these? Ill most likley undervolt both but if i dont end up undervolting would it still be fine? Thanks so much for any help! I have no idea what im doing this is my first time working with a oem pc and ive been asking around the internet for weeks now.

Specs:

I5-104000.
2tb pcie ssd.
1tb hdd.
64 gb of ddr4 ram.

 

[zinkles]

i wouldn't consider that enough though. specially since OEM stuff aren't that high quality. if it was a good power supply, it could handle spikes, but since you didn't provide any branding of it, I doubt so.

 

[crossram07]

i wouldn't consider that enough though. specially since OEM stuff aren't that high quality. if it was a good power supply, it could handle spikes, but since you didn't provide any branding of it, I doubt so.

Hmm alright noted. Would something like a 1650 super work? Also the psu thats currently in it is 180w so it seems like it would be running at high usage quite a bit with my specs. The psu model number im looking at is a 5P51D77151 aswell, couldn't find any official branding on it except for some Chinese characters so im doubting the quality too

 

[stonecarver]

https://psref.lenovo.com/syspool/Sy..._Gen_2_13IOB/Lenovo_V50t_Gen_2_13IOB_Spec.pdf

You manual only list this as a drop in card.
AMD Radeon™RX 550X[1] Discrete 4GBGDDR51x HDMI 2.0, 1xVGA, 1x DP 1.44096x2160@60Hz(HDMI),2048x1536@85Hz(VGA), 3840x2160@60Hz(DP) DirectX 12

 

[crossram07]

https://psref.lenovo.com/syspool/Sy..._Gen_2_13IOB/Lenovo_V50t_Gen_2_13IOB_Spec.pdf

You manual only list this as a drop in card.
AMD Radeon™RX 550X[1] Discrete 4GBGDDR51x HDMI 2.0, 1xVGA, 1x DP 1.44096x2160@60Hz(HDMI),2048x1536@85Hz(VGA), 3840x2160@60Hz(DP) DirectX 12

Yeah i looked at that, but an rx 550 isnt really gonna be able to handle any game whatsoever so i was just hoping there was some other upgrade i could do

 

[stonecarver]

Yeah that was kinda of why I pointed it out.

It is a tool to use as a reference taking that RX 550 vs what you actually want to use in the system. Power wise'





Thanks to an energy efficient design, the RX 550 4M requires only -----50 watts of power----- so it can be run off the system power bus. With most systems featuring a factory-installed 350 watt or higher power supply, you don't have to purchase and install a larger power supply.

 

[crossram07]

Yeah that was kinda of why I pointed it out.

It is a tool to use as a reference taking that RX 550 vs what you actually want to use in the system. Power wise'





Thanks to an energy efficient design, the RX 550 4M requires only -----50 watts of power----- so it can be run off the system power bus. With most systems featuring a factory-installed 350 watt or higher power supply, you don't have to purchase and install a larger power supply.

Ah ok that makes sense, so what would be the most powerful gpu i could get? Are there any that could be better than a 1650 that could provide good frames on pcie 3.0? The 1650 super seems somewhat viable in that case but its still not running off mobo power

 

[stonecarver]

[SOLVED] - Anyone know if the PSU in this prebuilt can be replaced?

I was thinking about buying the Lenovo V V50t-13IMB, and I wanted to know if the PSU can be replaced and what is its form factor, I wasn't sure if it was specifically made by Lenovo,

forums.tomshardware.com

View: https://www.youtube.com/watch?v=9_ViNv-mbyk


Kind of a bummer looking at the video here even trying to upgrade power supply your not only stopped by non normal power supply to mother board connectors your blocked by the rear panel cutout. Grrrr

 

[zinkles]

since you said it's a Chinese branded PSU, I doubt the quality as well.

I'd say the 1650 would be "ok", but in a matter of years, when the PSU degrades in performance, you'll run into issues.

 

[crossram07]

[SOLVED] - Anyone know if the PSU in this prebuilt can be replaced?

I was thinking about buying the Lenovo V V50t-13IMB, and I wanted to know if the PSU can be replaced and what is its form factor, I wasn't sure if it was specifically made by Lenovo,

forums.tomshardware.com

View: https://www.youtube.com/watch?v=9_ViNv-mbyk


Kind of a bummer looking at the video here even trying to upgrade power supply your not only stopped by non normal power supply to mother board connectors your blocked by the rear panel cutout. Grrrr

Yep, im certainly in a predicament here

 

[crossram07]

since you said it's a Chinese branded PSU, I doubt the quality as well.

I'd say the 1650 would be "ok", but in a matter of years, when the PSU degrades in performance, you'll run into issues.

Im fine with changing the psu every few years atp, might just get a 1650 and upgrade to a a2000 when i get enough money

 

[stonecarver]

I'm the kind of person who can and will make it work. If your the kind of person who wants to see how I would beat this.

https://www.amazon.com/Thsion-Synchronous-Multiple-Adapter-Connector/dp/B08F9WGLP2

And you need to buy a good quality after market power supply.

This would keep your computer fully factory except borrow one SATA cable to feed the card from amazon.

The card from amazon would turn on/off a more powerfull power supply to power your GPU of choice.

The downside is you have a external power supply sitting outside of your PC and you have to fish in the PCI-E wires you need to power your GPU.

When all is said and done your PC will boot and run as normal but now with the GPU you want.