Precision 3630 power supply

Question

I understand that most likely I need an upgraded psu but I'm hoping that the risks are minimal if I do then I'll take the risk. Mainly on what happens if this particular psu is overloaded.

Dell Precision 3630 with an i7 9700k. Minimal other stuff other than an ssd. Standard Dell 460W supply.

I'm looking at an Nvidia rtx 4070. 200W card.

Seems the rails on the power supply may be ok.. Assuming that 12VA is the yellow wires which only feed the gpu plug and is rated 18A (borderline). Was hoping 12VB (or 12VC) is also on the gpu but can't be sure. The other 12V rail seems to be white and connects to the motherboard and ssd only. Motherboard and ssd don't take any other 12V rails I believe so only using one. The either rail colour code is a mystery to me.. Total of 12V should be under 385W as stated on the power supply which seems ok.

Would the power supply shut down on overload, or could it risk damaging hardware. If the supply has protection and shuts down I'd risk it.. If it could undervolt and potentially spike I probably wouldn't risk it. Anyone comment on this actually power supply? I don't really want to invest more money into it I'll be honest, thus skimping.. If I had to choose an rtx 4070, or a safe option of a 4060ti plus psu I'd choose the 4070.. Comparing the same budget that is.

me.myself.i · Answer

In my experience the computer will simply shut down, due to a GPU power spike. This even happens with a 1300W PSU and a Quadro RTX A4500. Also, make sure that your new PSU will physically fit your chassis. On mine, for example, there is a slot which only fits that particular model.

PeteRepeat_online · Answer

I'm hoping that this model power supply does have the shut off protection feature like it seems your does... I can't find if this power supply in particular has it. I believe most quality power supplies shut off on overload rather than burn out or even worse, have potential voltage spikes.. I'm more hopeful seeing this unit had the fault lights on it so must have some sort of protection...

Hopefully a Dell rep may be able to share this Information on the oem power supply. I can't find it

Chino de Oro · Answer

In general, Dell power supplies are very good. Although they don't advertise each and all of the protection features, when kicked in, the system would reboot to protect motherboard and components from getting damaged.

Gamers Nexus did a power supply review for G5 gaming system and the result was positive. One can expect similar quality in professional models such as Precision workstations. On a positive note, the 3630 uses standard ATX power supply and very easy to upgrade when needed. The 460w PSU can safely support up to 180w graphics card. For anything higher, it's better to upgrade it with a good or premium brands.

PeteRepeat_online · Answer

Seems the 4070 is a 200 W card and the model I'm looking at uses an eight pin connector so hopefully it will still be suitable

Chino de Oro · Answer

It will work, but it also will max out the 18A rail.

user_376d3c · Answer

@Chino de Oro​ so can I put rtx 2060 6gb graphics card without changing the power supply. I have a dell precision 3630 I5 9500 it has a 8 pin connector

Precision Fixed Workstations

Precision 3630 power supply

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