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November 24th, 2024 17:45
Need to upgrade PSU for Vostro 3681
I want to upgrade the rather weak 200W PSU that came with this PC so I can use a GPU in the future which takes as much power as this stock PSU. Since Dell's PSU is non-standard, can anyone tell me if there is a PSU with the same dimensions as this one but rated at 400W+?
If not, I have a 600W Hercules PSU and I hear I need an adapter, but most of the ones I heard of are 24pin-to-8pin while this Vostro connects with a 6pin, is that too puny for a larger power draw? Of course, this PSU will be outside the case since it can't fit so I would prefer if I can get one with the proper dimensions but I have no idea what to look for.
Advice welcome.
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redxps630
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November 24th, 2024 23:04
V3681 mobo has Dell 6+4+4 pin socket that means it uses same power pin out as XPS 8940 G5 5000 and Optiplex 7080/7090.
You can install Dell oem Y7R0X 500w psu for 8940 in 3681 will fit like a glove and give you enough power for a 200w gpu.
redxps630
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November 24th, 2024 23:07
All these will work among these Y7R0X is best known to community
5K7J8 500w Delta
99TPH 500w Liteon
Y7R0X 500w Chicony
KipDelacroix
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November 25th, 2024 06:45
Wow, I'm impressed at how knowledgeable you guys are. You know your Dells.
Can I buy this PSU directly from Dell? Listings on eBay and Amazon are too expensive, about half of what I paid for this PC itself.
Thanks!
PS: The other 4pin on my mobo is unused, what is it for? It says CPU2.
redxps630
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November 25th, 2024 14:18
You can buy from Dell.
when you use a basic entry level psu of 200w I suppose it has 6+4 pin connector : only one 4 pin. That is understandable. The mobo can power on with only one 4 pin socket plugged in with the 200w psu. When using a high power 500w psu, both 4 pin sockets of mobo need to be plugged in.
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KipDelacroix
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November 25th, 2024 14:54
Dang, $110 just for the PSU. I bought a 600W square-shaped PSU in 2012 for $25 (which I still have). This won't do.
I guess I'll have to go the adapter route.
Will this work?
https://www.moddiy.com/products/PSU-Main-Power-24-Pin-to-6-Pin-Adapter-Cable-for-Dell-OptiPlex-Vostro.html
You said for a high power PSU, the 6 pin and both the 4 pin sockets need to be connected, so will the above adapter be insufficient?
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redxps630
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November 25th, 2024 15:00
You can use 24-6 adapter
user validated one on Amazon
The 24 pin ATX psu you use need to have two identical 4 pin cpu connectors
this is not the same as 8 pin EPS connector
some 24 ATX psu has only 8 pin EPS
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