OK to use 135W power supply with T430?

T430/T440 and T530/540 series specific matters only
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serpico
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OK to use 135W power supply with T430?

#1 Post by serpico » Tue Apr 11, 2017 12:13 am

I bought a used T430 that didn't come with a power supply. This model has discrete graphics, so I assume the OEM power supply is 90W.

I don't have a 90W PSU, but I do have a 135W PSU from my Thinkpad W510. Would it be safe to use this 135W PSU with the T430? This would be temporary as I'll get a 90W PSU and sell the W510 along with the 135W PSU.
T430: i5-3320M(2.6GHz), 8GB RAM, 120GB SSD, 14" 1600x900, NVIDIA NVS 5400M 1GB
W510: i7-720QM(1.6GHz), 8GB RAM, 240GB SSD, 15.6" 1600x900, 1GB nVIDIA Quadro FX 880M
T410s: Core i5 2.53GHz, 8GB RAM, 120GB SSD, 14.1" 1440x900
T60
X60

theterminator93
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Re: OK to use 135W power supply with T430?

#2 Post by theterminator93 » Tue Apr 11, 2017 6:04 am

Yes. The computer is only going to draw as much current as it needs to satisfy its needs. The higher power PSU simply has a higher maximum current - the voltage is the same.
Daily: W520 i7-2860QM·Quadro 2000m·IPS FHD | T420 i7-2640M·NVS 4200m·IPS FHD | X220 i7-2640M | T601F T9900·NVS 140M·IPS UXGA
Wife's: T61p T9500·2010 FX570m·WUXGA | X220T i7-2640M
Others: T400·61p·61·60·43·42p|X41T·24·23·22|G41|A31p·22m|i1200|TransNote|380D|365XD|701C|755C

serpico
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Joined: Fri Feb 03, 2006 1:49 am
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Re: OK to use 135W power supply with T430?

#3 Post by serpico » Tue Apr 11, 2017 9:26 am

Thank you. :thumbs-UP:
T430: i5-3320M(2.6GHz), 8GB RAM, 120GB SSD, 14" 1600x900, NVIDIA NVS 5400M 1GB
W510: i7-720QM(1.6GHz), 8GB RAM, 240GB SSD, 15.6" 1600x900, 1GB nVIDIA Quadro FX 880M
T410s: Core i5 2.53GHz, 8GB RAM, 120GB SSD, 14.1" 1440x900
T60
X60

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