What is this connector called please.

[Karan puri]

What is this connector called please.

 

Its in an dell optiplex 3020.

Need to power the motherboard.

 

Changing psu cause need to install a 750watt one for the 3090 i bought off a scalper. Lol

[CWALD]

That is your 4pin CPU power connecter

[givingtnt]

It's literally written on it, cpu power 4 pin.

[Dutch_Master]

IIRC manufacturer is Molex.

[Guest]

It`s Called a P4 power connector it`s job is to provide power to the CPU.

 

Since you are working with an OEM machine especially Dell. Be careful since they use proprieatory power suplies and other components.

[Spotty]

That is a standard 4 pin CPU power connector.

The power connector you need to check is the motherboard power connector, which on that motherboard is the 8 pin connector to the right of the motherboard. That is not a standard connector and means you cannot use normal ATX power supplies with it, you can only use the custom Dell PSUs made for that motherboard, which most likely do not include a 750W+ option.

 

Are you planning on buying a new computer for the RTX 3090 or are you planning on using the RTX 3090 in the old Dell prebuilt?

[flibberdipper]

1 minute ago, Spotty said:

That is not a standard connector and means you cannot use normal ATX power supplies with it, you can only use the custom Dell PSUs made for that motherboard, which most likely do not include a 750W+ option.

Eh, this is only partially true. There are heaps of converters out there for em, such as this one. Still a solution that shouldn't need to exist though.

[AudacityTheEditor]

Just about every PSU should have a 4-pin on it for CPU power, and often getting into that range of PSUs, they'll likely all have a second 4-pin that can "connect" to the first in case the CPU requires an 8 pin. My PSU was only 600W and has that option which I had to use for my 10900K. On the other note, I would keep in mind that the 3090 you just got might be EXTREMELY bottlenecked by that CPU, assuming that's nothing crazy in that system. Assuming the optiplex is the "biggest" one available, I believe that configs to an i7-10700, meaning it should have enough cores but might not clock high enough on all cores (probably 4.6 all-core, as it's 4.8 for 1-2 core(s). Especially to buy a 3090 from a scalper, likely for more than $2k, you probably paid more than the entire desktop would be worth. I also want to warn you that a 3090 might not even FIT inside of that case, so you might need a PCI ribbon and set the 3090 outside of the case... Considering the Tower config dimentions, external, is 300mm, and the 3090 is 336mm, that might not fit assuming you got the Tower config, and not something smaller like the "small form factor"

[BondiBlue]

14 minutes ago, AudacityTheEditor said:

Just about every PSU should have a 4-pin on it for CPU power, and often getting into that range of PSUs, they'll likely all have a second 4-pin that can "connect" to the first in case the CPU requires an 8 pin. My PSU was only 600W and has that option which I had to use for my 10900K. On the other note, I would keep in mind that the 3090 you just got might be EXTREMELY bottlenecked by that CPU, assuming that's nothing crazy in that system. Assuming the optiplex is the "biggest" one available, I believe that configs to an i7-10700, meaning it should have enough cores but might not clock high enough on all cores (probably 4.6 all-core, as it's 4.8 for 1-2 core(s). Especially to buy a 3090 from a scalper, likely for more than $2k, you probably paid more than the entire desktop would be worth. I also want to warn you that a 3090 might not even FIT inside of that case, so you might need a PCI ribbon and set the 3090 outside of the case... Considering the Tower config dimentions, external, is 300mm, and the 3090 is 336mm, that might not fit assuming you got the Tower config, and not something smaller like the "small form factor"

The OptiPlex 3020 uses 4th Gen Intel CPUs, not 10th Gen. 

[AudacityTheEditor]

9 minutes ago, BondiBlue said:

The OptiPlex 3020 uses 4th Gen Intel CPUs, not 10th Gen. 

I was basing my answer from a quick google search I dug up - I wasn't 100% sure if it was the correct result. I see now that it wasn't and that doesn't make anything better. I can't even imagine running a 3090 on a CPU of that generation. Probably no more than 6 cores, hovering in the 3.6 GHz range. If you're planning on using the 3090 in an upgrade down the road, I guess that's fine - but I wouldn't be surprised if it performs about as well as a GTX 1050. Not to mention the number of PCIe lanes to the CPU, they're likely x8 slots anyway. I would like to know the rest of the config.

[nejc780]

I have a question regarding these optiplex 3020 PSU's. Can you jump start these things ? its a 12v only 8pin PSU. I have a PSU tester for 24pin PSU but it wont work with it.

thanks