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Dell Vostro 3681, which power source?
Good afternoon, I needed help with my Vostro 3681, it is one of those minicomputers so it has a similar/equal size to the Optiplexes also from Dell, both lines of very small computers, and I researched a lot for the best upgrade on this machine - knowing the difficulty of change cabinet to adapt to size. In this video they test several gpu on an Optiplex 9020 SFF which has the same dimensions as my PC (30x9x30) and I was interested in the RTX 3050 Low Profile, knowing that I need to change the power supply (it comes with one of only 200W), which ones would be compatible and good for my setup (that mostly fit, of course)?
redxps630
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August 5th, 2024 20:48
Sapphire RX6400 is validated in V3681
this is a 53w psu which works with stock psu
https://www.userbenchmark.com/UserRun/64910640
redxps630
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August 6th, 2024 02:10
yes good find that one is 100% compatible. it is for 7090 which has same pin as V3681
https://www.dell.com/en-us/shop/dell-300w-power-supply/apd/352nr/computer-chassis-components#compatibility_section
redxps630
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August 5th, 2024 19:10
unfortunately this model like many other entry level Dell 3### desktop does not support dual slot width gpu including the low profile RTX 3050
the 3### is Dell entry level in Optiplex/Inspiron or Vostro. It is very user unfriendly in terms of upgradability. the x16 slot is right next to psu so you can not install a dual slot low profile gpu unless you install a psu outside case. the x1 slot has a closed end forbidding gpu install, and it is wired to x 1 lane.
the 3### sff is only good for low power low profile single slot width gpu such as the Dell oem Radeon ones. Try to choose GDDR5 and not gddr3 oem gpu. RX550 or R5 430 are some Dell gpu options. RX6500 or RX6300 are the newest Dell oem gpu that would fit.
PS Optiplex 9020 SFF is a high end optiplex model which has a PCIex4 slot with open end. so user can install a dual slot width low profile card in that model.
(edited)
redxps630
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August 5th, 2024 19:15
in summary the only way to install RTX 3050 LP in V3681 is to move psu outside case. not everyone likes to do that.
IgorFerreiraa
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August 5th, 2024 20:32
Thank you very much, sorry for my bad English. Can I use this low profile gpu with a single slot? And another thing, if I can use it, what power supply do you recommend (cheap, I have a difficult financial situation) for my PC with this card.
IgorFerreiraa
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August 5th, 2024 20:56
Thank you very much, so it won't damage or strain my PC even though the power supply is 200W and I have 20GB of RAM instead of the original 4GB? (I changed). Thank you very much in advance, in case of SSD can I also add it without fear? Just this more
redxps630
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August 5th, 2024 21:20
a minimum of 250w psu for i5-10500 and RX6400
Load Wattage:247 W
Recommended PSU Wattage:297 W
V3681 has 6+4+4 white pin same as Optiplex 7080
upgrade to 260w or 360w psu
stock 200w psu too weak
(edited)
IgorFerreiraa
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August 5th, 2024 21:46
@redxps630 Ok, thank you very much, which power supply of at least 300W compatible with the size and model of the Vostro 3681 and at a good price do you recommend?
redxps630
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August 5th, 2024 22:00
https://www.dell.com/en-us/shop/dell-260w-power-supply/apd/jj4yw/computer-chassis-components
(edited)
IgorFerreiraa
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August 6th, 2024 00:30
@redxps630 These power supplies are not available in my country (Brazil). Can I use this (is available for sale on a platform here)? And in the case of an SFX Corsair that I find in a small size, for example
redxps630
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August 6th, 2024 01:24
unfortunately you can not use that old psu in this modern Dell pc.
chat w Dell on line to see if they can sell you a 360w or 260w psu for Optiplex 7080/7090 which is c/w 3681
IgorFerreiraa
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August 6th, 2024 01:44
@redxps630 I found one of the supplies you recommended in my city (here in Brazil), in this case the one compatible with models such as Optiplex 3080, 5080 and 7090. New and 300W, can I use it on the Vostro 3681?