Lenovo H530s – How to Upgrade Your Power Supply

Do you want to add that low profile graphics card but it says you need a 350 watt power supply?  See how you can change out that stock power supply for something more powerful.

Update: If you don’t want to make your own cable you can now purchase the adapter from Amazon.

The video below shows you the different steps in changing out the power supply on your Lenovo H530s.  It will show you how to

  • Remove the old power supply
  • Wire up the adapter for the 14 pin  motherboard power socket
  • Install the replacement power supply

Please note that this procedure was done on an Intel i3 machine.

Tools and Equipment

These are optional if you want to make it easier for yourself.

Replacement Power Supply

Because the power supply used in the Lenovo H530s has a TFX form factor, your choices are pretty limited.

I went with the Solid Gear SDGR-TFX350 TFX12V 350 watt power supply because it met the recommended minimum power requirements for the graphics card that will go into this PC.

14 Pin Motherboard Connector

Update: If you don’t want to make your own cable you can now purchase the adapter from Amazon.

You’ve figured out you need a TFX power supply, opened your case, removed the DVD player.  When you look at the power connector on your motherboard something doesn’t seem right.

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24 Pin Power Next To Lenovo 14 Pin Motherboard Connection

24 Pin Power Next To Lenovo 14 Pin Motherboard Connection

You’re correct!  Lenovo is using a 14 pin motherboard power connector.  Luckily for both of us my original power supply had wire colors and voltage listed on the side.  Below is a diagram of the pin out for the motherboard power connector.

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Lenovo H530s Motherboard Power Connection

Lenovo H530s Motherboard Power Connection

Make Your Own 24 Pin to 14 Pin Power Adapter

You’re going to use the 24 pin to 20 pin motherboard power adapter to make a 24 pin to 14 pin adapter.

Pushing Pins Out of the Connectors

First you will need to push out the pins in both connectors you don’t need.  This means all the pins in the 20 pin connector side, and all but the following colored wires below for the 24 pin connector side.

  • (4) Black wires – it doesn’t matter which ones you keep
  • (1) Yellow wire – you’ll have to split the other one
  • (1) Purple wire – this is the +5 volt line
  • (1) Blue wire – this is -12 volts
  • (1) Green wire – this indicates the power supply is on
  • (1) Gray wire – this indicates the power supply is OK

The video above shows you how to push out the connectors using a punch to correctly configure the Lenovo motherboard power pin out.  If you want to make it easy on yourself get a set of pin removal tools.

Splitting 12 Volt Line

Because you’ll need three 12 volt yellow wires and the 24 pin only has two, you have to make a connection that splits from one line to two.

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Soldering 1 Male to 2 Female 12 Volt Wires

Soldering 1 Male to 2 Female 12 Volt Wires

Cutting 20 Pin Connector to 14 Pins

To figure out where you’re going to make your cut, match up the original connector with the 20 pin one.  Mark which ones you’re going to cut so you don’t cut from the wrong side.

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Figure Out Where to Cut 20 Pin Connector

Figure Out Where to Cut 20 Pin Connector

Using a vice and hack saw makes cutting the extra length off the 20 pin adapter easy, but you could use a serrated knife if you had to.  Just don’t try to blame me when you cut a chunk out of your hand.

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Cutting 20 Pin Adapter to 14 Pin

Cutting 20 Pin Adapter to 14 Pin

Cut the tips off the connections you don’t need.  Then cut down the center of the connection next to the one you want to keep.  That way you don’t cut the wall away on the connection you want to keep.  The video explains this more if you want to review it.

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Original Power Connector Next to New One

Original Power Connector Next to New One

Now, you’ll use the connection diagram and push the female pins into their proper place.

Connecting New Power Supply to Motherboard

After you screw the new power supply back in place you’ll need to connect the following:

  • Motherboard power (using the adapter you just made)
  • CPU power connection (see picture below)
  • Hard drive (using the power connectors on the new power supply)
  • DVD drive (using the power connectors on the new power supply)

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Reconnecting the CPU Power

Reconnecting the CPU Power

As noted above you should use the power connectors on your new power supply instead of the connector on the motherboard.

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Do Not Use the Hard Drive and DVD Drive Power Connectors Next to Motherboard Power

Do Not Use the Hard Drive and DVD Drive Power Connectors Next to Motherboard Power

Warp Speed Scotty

Only thing left after everything is put back together is to power that sucker up.  If you found this article and video helpful please share it and subscribe above.[/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]

32 thoughts on “Lenovo H530s – How to Upgrade Your Power Supply”

  1. Hello,

    TY for making this interesting guide. My question is, why you have to use power connectors (HDD/ODD) directly from a new PSU and not the original ones – from the motherboard?

  2. More personal preference. I’m sure the connectors from the motherboard would work just fine, but I wanted direct power from the new power supply instead of going through whatever Lenovo designed for the power distribution.

    Also, the original power supply only had the necessary motherboard connections. I’m not sure but this might have been so they could buy a less expensive power supply.

    Thanks for taking the time to read the guide.

  3. TY for answer. I believe it is beancounter’s cost saving measure too. We are Lenovo reseller and we are scratching heads quite often about things that Lenovo messes up and how to fix them …

  4. Thank you for taking the time to create this video, edit and post. Very nice.
    Lenovo has created a real pain the arse for a such a common, simple upgrade. I was so disappointed when I went to attempt to upgrade my son’s new Lenovo with a bigger psu and killer grafix card. Im also trying to educate him on whats inside the box of a pc.
    I wanted to ask… instead of having to use a 20-24 “adapter cable” to make the new 14 pin connector,…. cant we just pop the pins out of the new replacement psu’s 20 (or 24) connector and just re-connect those wires to the 14 pin connector from Lenovo’s psu? Also, are the colors of the wires at most of these connectors universally standard color coded in the pc industry?
    ie..yellow is 12v+, black is – ….etc. Or does let’s say Dell uses this color, HP uses that color ..etc
    thx again!

  5. I’m glad you’re teaching your son about the parts of a computer. Like you, I think its really important to demystify computer and coding.

    You can pop out the wires for your new power supply connector. I didn’t just because I might use that PSU for something else in the future.

    Yes, the color coding on the wires is using a PC industry standard.

    Thanks for checking out the video and post. I appreciate it.

  6. how much watts using a lenovo h530s graphics card?
    I was going to buy a graphics card and it is 75 w, will it work?

  7. very helpful article, review and pinout chart here. Information resources are scarce on the web about this topic. This tutorial inspired me to mod the connector myself. I was done in 1 hour. This saved me 20$ plus long shipping time, and i had a lot of fun doing it. My PC and video card are running very well after this mod.

  8. Thanks great article. For those that are not practically minded this adaptor seems to be a good alternative. Not tested on H530s but seems to works well on M92Ps

  9. Interesting Vid! When I bought a Lenovo H50-50 I had the same problem: 14 pin motherboard, new PSU for new GPU not compatible with it. I bought an adapter from 20 to 14 pin since I’m not that DIY, but now there’s the problem that on the standard 24 pin PSU and the adapter there are only 2 12V lines, while my mainboard asks for for 3 as in your video. I wouldn’t want to try soldering, however, so any other option? Can I just fork one of the two 12V wires going into the 20pin end of the adapter (2 yellow wires going into the same pin on the 20pin side and 3 12V at the 14pin side?)

  10. Sorry, I guess the question above is very stupid, since it’s a yes, of course, but I still have another problem. The original PSU for this lenovo H81 Mobo has a white -5V wire while the new PSU I bought hasn’t got one. Is that a problem?

  11. What does each of the three yellow (12Volt) wires supply power to? Normal PSU only has two such wires. Does the third one provide for the hard drive and CD drive through the wire coming out of the motherboard? If so, it is not needed since replacement/regular power supply units provide such connectors directly out of the PSU. And in that case, which one is this third yellow wire?

  12. Why can’t you use the original 14 pin plug from the old power supply? it clips in properly. I understand the need for the female 24 pin adapter, Just curious about the extra work making a 20 pin into a 14 pin.

  13. I figured it out, I spliced one of the yellow wires on the PSU end, and used the original 14 pin plug from the old PSU because the 20 pin to 14 pin DIY won’t clip on to the Motherboard. Not sure why you don’t just use the original 14-pin plug. I just spread one of the yellow +12 V wires in the middle with a wire spreader, and soldered the new yellow to the middle.

  14. Great!
    Just one very important point. The violet +5V line is must be connected to +5VSB line. Otherwise PSU will not start.

  15. Hi,

    I did the mod, but without connecting the white line. The PSU is a Corsair VX450 (old, but was good at that time). My problem is that since then when I put the PC to sleep (form under linux), it turns off but in a stange way. The power led does not flash as it should and when I try to turn on, it just turns on for a sec and shuts down again. After that I can turn on by pressing a key (normally from sleep mode a keypress should recover it), but it will do a normal boot instead of resuming from sleep.
    Could this be due to the new PSU? Could this be because of the missing white wire? I also took the 3rd yellow line from a HDD (molex) connector. Is that a problem?

  16. I make as in Your tutorial are, but in result pc switch on only on few seconds and after that switch off. Have any idea where I can find problem?

  17. Hi,

    thank you for your guide.

    I have a question. I baiscally want to do exactly the opposite that you did. I want to use the old 14 PIN PSU from the Lenovo on a 24 Pin Motherboard. Ist that possible?

    I have the following situation:

    1. I have a Lenovo M91p Tower with a 24 Pin 500 Watt PSU, with a GTX 750 Ti GPU running in it without any problems.

    2. I now also have a M92p Tower with a 14 pin 280 Watt PSU.

    Now I want to use the newer M92p and Now I installed the GTX 750 Ti in it, which does not have an external power input and derives its power only from the PCI-E slot.

    If the GPU is not fully utiliesed, the setup works fine. if However I start GPU demanding applications, and the GPU is fully utilised, the 280 WATT PSU is not sufficient to power the GPU and all other componets attached to the M92p Tower and the GPU goes black. I the have to restart the pc to get it working again.

    Right now I help my self by downclocking the GTX card by about 20 percent, so that the Graphicscard is not pushed to its maximum power consumption.

    This solution works, however it is not perfect as I am not fully utilising my GTX 750 Ti card.
    I was thinking to put my 500 Watt 24 pin PSU into my 14 pin M92p tower in order to allow my GTX 750 Ti to work utilisng its full potential and not having to downclock it.

    As you already have discussed, this will work without any issues with a 24 pin to 14 pin adapter.

    My Question is however, wether, I can put the 14 Pin 280 WATT PSU of the M92p Tower into my M91p Tower? As I would be running my M91p with only the integrated GPU, 280 Watt would be sufficient. I want to avoid to buy a third PSU.

    Is it possible to put a 14 Pin PSU in a 24 Pin Board? Does such a adapter exist?

    I hope someone can help.

  18. How do you make the third yellow wire? You were not very clear in your explanation. Do I split a yellow into two or splice a wire onto a yellow to add another? I did not understand your explanation.

  19. Excellent guide – well done – enabled me to upgrade son’s ThinkCentre E73 with gaming graphics card and upgraded PSU connections. Used a 24 pin to 24 pin extension from Maplin (and a 20 pin Female to 24 pin Male atx cable for the 12volt yellow cable 1 to 2 pin wire) to make own adapter. Worked perfectly thanks very much.

  20. Thank you for your helpful video.
    Our Lenovo Thincentre E73 has an white wire, our voltmeter says +1,2V

    You didn´t connect this wire.

    On the adpaters we found in the internet its connected – I thin with + 5 V.

    What would you recommend to do.

    thanks for answer
    W_JE

  21. the white wire in lenovo was the +5v. take the red wire from the new psu and your done. thanks for the tuto.

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