Will This PSU with weird dimensions fit in my case?

Undeaddude43 · Jun 20, 2014

I have a Dell H750E-01 PSU and it has odd dimensions: http://www.impactcomputers.com/h750e-01.html

Is this height too tall or width too wide for my case and motherboard?

http://pcpartpicker.com/p/rtgH8d

Thanks

mbarnes86 · Jun 20, 2014

hi

What is the manufacturing date ?
recent PSU are more standard than old Dell ones and can be replaced by standard (non Dell) ATX PSU's

One good thing about Dell PSU's is they are usually conservatively rated a Dell 400W PSU beats most (cheap) 500W PSU's

what is a 8 Pin Proprietary connector?

you are missing the ATX 12V 4+4 pin plug

If you have the Dell PSU and matching Dell PC you need to find out if the ATX 12V plug & socket are standard or not and the same as the 8 Pin Proprietary connector?

some big Dell PSU's take a non standard power cable connector.
If You took this PSU from a Dell PC you will have the correct power cable

You also have to find out how to fit it into your new case
you may have to get out a hacksaw and drill to make it fit

compare dimensions of the Dell PSU and its 4 mounting holes with standard ATX PSU

this may be useful
http://www.tomshardware.co.uk/forum/315455-28-dimensions

regards
Mike Barnes

Dark Lord of Tech · Jun 20, 2014

The Dell PSU isn't Haswell compatible , so you cant use it in your build.

Get this one made by SEASONIC.

PCPartPicker part list / Price breakdown by merchant

Power Supply: XFX TS 550W 80+ Bronze Certified ATX Power Supply ($59.99 @ Newegg)
Total: $59.99
Prices include shipping, taxes, and discounts when available

Scampi · Jun 20, 2014

PSU length is fine, as it's bottom mounted the case supports up to 230mm.

IMO i think they have a couple of the dimensions in the wrong way around on that site for the Dell PSU. If that PSU is 100mm/3 15⁄16in wide, then it has to be the worlds thinnest & longest PSU ever, lol.

I think it should be :height 100mm (3" 15⁄16in ), width 150mm (5" 29⁄32in) & length 165mm (6" 1⁄2in).

ATX standard (W)150 mm (H) 86mm , (L)140mm

Hell, you can measure it yourself now i think about it :lol:

So it's 14mm/1.4cm/ taller than standard, not sure what difference that will make, perhaps it may not line up with the screws. It won't hurt to try & see if it fits. It it doesn't look into buying a new PSU.

The Dell PSU will work, just that a setting in the BIOS will need to be disabled/changed for Haswell.
http://www.legitreviews.com/what-enabling-c6c7-low-power-states-do-on-the-core-i7-4770k-haswell-cpu_2217

GA-H81-D3 Manual:

C6/C7 State Support (Note)
Allows you to determine whether to let the CPU enter C6/C7 mode in system halt state. When enabled,
the CPU core frequency and voltage will be reduced during system halt state to decrease power
consumption. The C6/C7 state is a more enhanced power-saving state than C3. Auto lets the BIOS
automatically conﬁgure this setting. (Default: Auto)

Undeaddude43 · Jun 20, 2014

mbarnes86 :

hi

What is the manufacturing date ?
recent PSU are more standard than old Dell ones and can be replaced by standard (non Dell) ATX PSU's

One good thing about Dell PSU's is they are usually conservatively rated a Dell 400W PSU beats most (cheap) 500W PSU's

what is a 8 Pin Proprietary connector?

you are missing the ATX 12V 4+4 pin plug

If you have the Dell PSU and matching Dell PC you need to find out if the ATX 12V plug & socket are standard or not and the same as the 8 Pin Proprietary connector?

some big Dell PSU's take a non standard power cable connector.
If You took this PSU from a Dell PC you will have the correct power cable

You also have to find out how to fit it into your new case
you may have to get out a hacksaw and drill to make it fit

compare dimensions of the Dell PSU and its 4 mounting holes with standard ATX PSU

this may be useful
http://www.tomshardware.co.uk/forum/315455-28-dimensions

regards
Mike Barnes

Hi this PSU is in fact in my dell XPS 630i right now. So I believe it has all the correct cables...right?

Undeaddude43 · Jun 20, 2014

Scampi :

PSU length is fine, as it's bottom mounted the case supports up to 230mm.

IMO i think they have a couple of the dimensions in the wrong way around on that site for the Dell PSU. If that PSU is 100mm/3 15⁄16in wide, then it has to be the worlds thinnest & longest PSU ever, lol.

I think it should be :height 100mm (3" 15⁄16in ), width 150mm (5" 29⁄32in) & length 165mm (6" 1⁄2in).

ATX standard (W)150 mm (H) 86mm , (L)140mm

Hell, you can measure it yourself now i think about it :lol:

So it's 14mm/1.4cm/ taller than standard, not sure what difference that will make, perhaps it may not line up with the screws. It won't hurt to try & see if it fits. It it doesn't look into buying a new PSU.

The Dell PSU will work, just that a setting in the BIOS will need to be disabled/changed for Haswell.

GA-H81-D3 Manual:

C6/C7 State Support (Note)
Allows you to determine whether to let the CPU enter C6/C7 mode in system halt state. When enabled,
the CPU core frequency and voltage will be reduced during system halt state to decrease power
consumption. The C6/C7 state is a more enhanced power-saving state than C3. Auto lets the BIOS
automatically conﬁgure this setting. (Default: Auto)

You are definitely right. The dimensions are flip-flopped. I just measured it and the height is not 100mm it appears to be around 91. It might work?

On the BIOS setting, how would I even get to BIOS if the PSU doesn't work with haswell components?

Scampi · Jun 20, 2014

Undeaddude43 :

It is more likely to fit yes, that's closer to the ATX standard size. And if the other dimensions are as i suspect, it will be okay. Worst case scenario, you'd have to make a couple of holes yourself for the screws that attach the PSU to the case.

The Haswell compatibility issue is purely concerning the low power state mode when your system is idle, not that you need any special cables or anything. Some PSU's can't handle the very low power requirement in this C6/C7 sleep state. Most motherboards have it disabled now as default due to this "Haswell Compatible" shenanigans, and if not you can simply disable it in BIOS.

http://www.legitreviews.com/what-enabling-c6c7-low-power-states-do-on-the-core-i7-4770k-haswell-cpu_2217

Edit: Rather then sleep mode, i mean't "Idle state" i.e when your PC is idle, as opposed to putting the PC into sleep mode . Doesn't effect the original outcome.

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Will This PSU with weird dimensions fit in my case?

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