Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

1138 posts

Uber Geek
+1 received by user: 103


Topic # 115391 24-Mar-2013 14:41
Send private message

I have a n HP DC7800 with a dead PSU. Ive tried looking for a replacement and have come up with little to nothing as direct replacement. As its only going to sit in the garage and be used as a games machine Im wondering about just buying a PSU which can sit outside the SFF case.

My question is around a 6 pin connector it has on it. Is this for a PCI-E card ? That's what the web seems to tell me, but I have another old P4 desktop with PCI-E and that only has 4 pins. 

The original PSU is only 240W and if I put a PCI-E graphics card in it I will obviously need more, I assume any old PSu with a 6-pin connector (as well as the 20-odd pin its got) will be ok ?

Or am I missing something here ?

Create new topic
606 posts

Ultimate Geek
+1 received by user: 38

  Reply # 792836 4-Apr-2013 01:50
Send private message

What sort of 4-pin and 6-pin are we talking about here?

Is the 4-pin like this?

It could be ATX/BTX 12v.

Is the 6-pin like this?

it could be one of several things. e.g. WTX CPU power:

Or one of these other ones:

Perhaps this page helps a little more:,3061-12.html

#include <standard.disclaimer>

1138 posts

Uber Geek
+1 received by user: 103


  Reply # 792981 4-Apr-2013 10:27
Send private message

Thanks for that information.

It looks like its an HP-specific connector. Its marked P3 and has three black and two brown with one yellow, which doesn't appear to be PCI-E, its a custom power plug.

Sadly I've drawn a blank finding a cheap replacement in NZ. I was just hoping I might be able to use a standard PSU but it doesnt look like, or at least I cant find any confirmation of being able to do it on the net.



17259 posts

Uber Geek
+1 received by user: 4930

Lifetime subscriber

  Reply # 793006 4-Apr-2013 10:56
Send private message

What's your budget? Why don't you just buy another 7800 to pillage it for parts and sell the rest as parts.

1138 posts

Uber Geek
+1 received by user: 103


  Reply # 793046 4-Apr-2013 11:37
Send private message

Hehe, that's how I've come to this point. A friend had a dead DC7800 so I just bought another to swap the PSU's.

So I'm just trying to get this one going to see if I can use it for anything :)

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

Microsoft Dynamics 365 Business Central launches
Posted 10-Jul-2018 10:40

Spark completes first milestone in voice platform upgrade
Posted 10-Jul-2018 09:36

Microsoft ices heated developers
Posted 6-Jul-2018 20:16

PB Technologies charged for its extended warranties and warned for bait advertising
Posted 3-Jul-2018 15:45

Almost 20,000 people claim credits from Spark
Posted 29-Jun-2018 10:40

Cove sells NZ's first insurance policy via chatbot
Posted 25-Jun-2018 10:04

N4L helping TAKA Trust bridge the digital divide for Lower Hutt students
Posted 18-Jun-2018 13:08

Winners Announced for 2018 CIO Awards
Posted 18-Jun-2018 13:03

Logitech Rally sets new standard for USB-connected video conference cameras
Posted 18-Jun-2018 09:27

Russell Stanners steps down as Vodafone NZ CEO
Posted 12-Jun-2018 09:13

Intergen recognised as 2018 Microsoft Country Partner of the Year for New Zealand
Posted 12-Jun-2018 08:00

Finalists Announced For Microsoft NZ Partner Awards
Posted 6-Jun-2018 15:12

Vocus Group and Vodafone announce joint venture to accelerate fibre innovation
Posted 5-Jun-2018 10:52 to launch Kogan Mobile in New Zealand
Posted 4-Jun-2018 14:34

Enable doubles fibre broadband speeds for its most popular wholesale service in Christchurch
Posted 2-Jun-2018 20:07

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.