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Thread: Dell Optiplex GX260 - replacing original PSU

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    Default Dell Optiplex GX260 - replacing original PSU

    I recently bought a very old Optiplex GX260 (c. 2003-2005) from the local thrift store, which I've been refurbishing with some newer parts I had laying around. I don't really want to use the current PSU due to its age, but I'm not very familiar with power supplies from that long ago. Here are the current system specs:
    - Intel Pentium 4, not sure what version (45-75W)
    - Asustek(?) Dell 62YVH motherboard. Can't seem to find a power draw for this model.
    - LG GSA-4081B disc reader (29W)
    - LG GDR-8161B disc reader (21W)
    - Seagate Barracuda 7200.10 320GB HDD (13W)
    - Samsung SFD-321J FDD (4W)
    - 250W Hipro HP-P2507 PSU
    Can anybody recommend some good 300-400W models from that era (preferably without SATA connectors), or that would work for this system?

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    GX260 comes in different varieties. A slim version with an ITX PSU and a normal desktop version. Judging by the PSU model, sounds like yours is the standard desktop model.

    The Hipro HP-P2507 is actually a standard ATX/PS2 form factor PSU.

    The problem that you're going to run into is that Dell didn't cut out the whole ATX form factor area in the back of the chassis. They only cut out a portion for the AC input and the exhaust fan. So you can't use any other PSU in it unless you Dremel out the whole area.
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    Quote Originally Posted by jonnyGURU View Post
    GX260 comes in different varieties. A slim version with an ITX PSU and a normal desktop version. Judging by the PSU model, sounds like yours is the standard desktop model.

    The Hipro HP-P2507 is actually a standard ATX/PS2 form factor PSU.

    The problem that you're going to run into is that Dell didn't cut out the whole ATX form factor area in the back of the chassis. They only cut out a portion for the AC input and the exhaust fan. So you can't use any other PSU in it unless you Dremel out the whole area.
    Yeah, it's a standard desktop model.
    Looking at the back, I can see that issue you're talking about; I hadn't initially noticed how small the hole for the receptacle is. It seems like it might be possible for a PSU to fit there if it had the AC receptacle in the same place, but then ventilation is still an issue because of the way it's laid out internally. I'll probably just have to stick with the Hipro for now.

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    Which old Dell models used a non-standard pinout? Just the Pentium 2 and 3?

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    Quote Originally Posted by ashiekh View Post
    Which old Dell models used a non-standard pinout? Just the Pentium 2 and 3?
    It looks like the pinouts on this one are standard, but I'm not 100% sure. You're probably correct.

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    Quote Originally Posted by ashiekh View Post
    Which old Dell models used a non-standard pinout? Just the Pentium 2 and 3?
    I believe so. Newer Dells are standard ATX AFAIK.

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    Quote Originally Posted by ashiekh View Post
    Which old Dell models used a non-standard pinout? Just the Pentium 2 and 3?
    They used non-standard power supplies all the way up to first gen Core i7; it's really dependent on the model.

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    Quote Originally Posted by Tator Tot View Post
    They used non-standard power supplies all the way up to first gen Core i7; it's really dependent on the model.
    Do you know if they were the same pinout as the 20-pin PSUs used in the P2 and P3s?

    They do have newer PCs with proprietary connectors, but they're not 20-pin or 24-pin.

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    Quote Originally Posted by jonnyGURU View Post
    Do you know if they were the same pinout as the 20-pin PSUs used in the P2 and P3s?

    They do have newer PCs with proprietary connectors, but they're not 20-pin or 24-pin.
    As far as I know, those 20pin designs were phased out with most of the P4 era machines but some may have still been in use. Most P4 machines I've ever worked on or scene were either Optiplex or Dimension BTX towers with a few SFF machines here and there of that generation.



    The i7 machines I was talking about were the XPS 730 and Alienware Aurora R1. They basically used a 24pin ATX connector with an additional 10pin motherboard connector.



    Recreating that 10pin cable could be done but you needed at least an extra SATA chain and PCIe chain off a standard PSU to do it. A huge pain in the ass.

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    It is fairly old...I would do some suitable recap on at least the Primary. could see if it fires up. maybe change the fan. if nothing else is bad and or tripping..do the ground lift see if it will run. Shit referenced to ground will kill the units some topologies lol. changed all Silicone. with something suitable.

    Or just buy a new unit.
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