Upgrading HP Pavilion Gaming Desktop tg01 (PSU)

[Dicky3]

I have an HP Pavilion Gaming Desktop and want to upgrade the power supply (PSU), but I don't know what types fit or are compatible with the PC. 

[NonSequitur777]

@Dicky3,

Welcome to our HP User Forum!

Please take a look at this HP power supply compatibility spreadsheet: https://h30434.www3.hp.com/t5/Desktop-Knowledge-Base/Power-Supply-Cross-Reference-for-specific-model..., and specifically look at the "TG01" column with associated power supplies.  There is a 400 watt PSU (p/n: L04618-800) and a 500 watt PSU (p/n: L05757-800) available.

Hope this helps.

Kind Regards,

NonSequitur777

[Dicky3]

do I need to use a PSU that is from HP? I have an RTX 3060 and I wanted to buy a PSU with 650watt.

[NonSequitur777]

@Dicky3,

What gaming desktop model do you have?  And I don't think it does, but just to be clear: does your existing PSU have a 24-pin power connector to your motherboard?

Kind Regards,

NonSequitur777

[Dicky3]

I think I have the Tg01-1810no because it had 256gb, gtx 1650, ryzen 5 4600g with radeon gaphics and 310watt power supply.

[Prométhée]

hi

waiting for the return of @NonSequitur777  

@Dicky3  you are limited on the hp side, the maximum is what is offered in the KB, you have a special HP erica3 motherboard
So unless you have a more or less risky hack, you need to find a graphics card requiring a power supply of at most 500w

https://support.hp.com/us-en/document/c06998871

https://support.hp.com/us-en/product/hp-pavilion-gaming-desktop-pc-tg01-1000a/37921127/model/2100019...

probably just borderline, hp delivers the same type of computer with an NVIDIA® GeForce RTX™ 3060 Ti (8 GB GDDR6 dedicated)
Power Supply Type
500 W AC power supply

but @NonSequitur777  has a tip if I remember correctly for an external power supply

[NonSequitur777 · Accepted solution]

@Dicky3,

The problem is that your Erica3 motherboard (according to: https://support.hp.com/us-en/document/c06998871, but Erica5 according to:  https://support.hp.com/us-en/document/c06998871) requires a proprietary HP power supply.  It is not compatible with industry standard ATX 24-pin power supplies. The most powerful HP power supply that will work for you is the aforementioned 500 watt HP L05757-800 PSU.

There is, however, a safe, reliable and easy way around this.   And that is to sync an external, secondary standard ATX 24-pin power supply to your desktop dedicated to power your graphics card, using an ATX PSU ADAPTER ATX 24-Pin to SATA Power Supply Adapter.  Setup is simple, inexpensive, and continues to work flawlessly many months on multiple gaming rigs I have set up for myself and my kids. And this way, you will NEVER be short on graphics power demands. Never again!

[DISCLAIMER:] this alternative power modification is not approved, endorsed or recommended by HP.

Interested? Then take a close look at my HP EliteDesk 800 G3 SFF Upgrade project: https://h30434.www3.hp.com/t5/Business-PCs-Workstations-and-Point-of-Sale-Systems/Upgrading-HP-Elite....

Hope this was helpful.

Kind Regards,

NonSequitur777

[NonSequitur777]

@Dicky3,

Btw, as long as you can fit your graphics card inside your HP Pavilion Gaming Desktop TG01-1810no desktop, the secondary ATX power supply setup will be so much easier for you compared with my HP EliteDesk 800 G3 SFF upgrade project, because I had to park my graphics card outside the case (currently an RTX 3080 OC 12GB) because of its size.

In your case (pun intended) really all you have to do is to get a decent ATX power supply (you may as well shop for a 750-850 watt semi-modular power supply if you haven't purchased one already -remember that the upper power supply limit for the ATX PSU Adapter card is 1000 watt), get the aforementioned ATX PSU ADAPTER ATX 24-Pin to SATA Power Supply Adapter (available everywhere these days), and a SATA-male to SATA-female extension cable.  Plug in the 24-pin power cable from your ATX PSU into the ATX PSU adapter, likewise connect a SATA extension cable into the SATA connection on the ATX PSU adapter card and connect to one of your internal SATA power cables.  Then connect the 6+2/8-pin PCIe power cable(s) from your ATX PSU to your graphics card.  Done.  You could feed these SATA extension/ATX PSU power cables through the back of your desktop (remove one of the PCI bracket slots, for example).  Plug in your desktop and external ATX power supply to a power supply, and you're done. Easy Peasy.

Now what happens is that when you power on your desktop, it will power your secondary PSU at the very same micro-second, and thus powers your graphics card seamlessly along with every other electronic component related to your desktop.  And when you power down your PC, everything will power down at the very same time.

Hope this was helpful.

Kind Regards,

NonSequitur777

[Dicky3]

I am very new to pc building and i don’t understand what the different part is and i don’t really know where to find the parts

[Dicky3]

I opened my pc and saw that the power supply was connected to something that is called pwrcmd and two others that were white and had 4 pins i think.