Sign in with
Sign up | Sign in
Your question
Solved

Power Supply requirements

Last response: in Systems
Share
April 17, 2011 10:54:10 PM

I had to buy a Power Supply since recently purchased HP workstation didn't have PCI-E power molex. The new one couldn't power the motherboard so naturally I thought I bought a defective PS and returned it to get a better one. This one also doesn't work.

I'm beginning to think the output of the power is the issue. I'm no expert on electric / power. I'm hoping someone here knows what problem I'm experiencing.
a c 1167 ) Power supply
a b α HP
April 17, 2011 11:37:00 PM

What is the exact model number of your HP workstation?
m
0
l
April 17, 2011 11:58:47 PM

HP Z200 workstation.
The one advertised on HP's website has updated components and no longer sell my version of Z200
m
0
l
Related resources

Best solution

a c 1167 ) Power supply
a b α HP
April 18, 2011 5:14:48 AM

When I look at the pinout of the 20-pin main power connector for the original HP Z200 power supply unit it doesn't conform to ATX standards. It looks to be proprietary because the HP power connector does not supply any +3.3VDC.

It doesn't look like you can just buy any ATX form factor power supply unit and expect it to work because it won't.

HP Z200 PSU Main power cable, P1

Pin : Signal
1 : GND
2 : GND
3 : –12V
4 : GND
5 : GND
6 : PS_ON
7 : GND
8 : Fan_CMD
9 : Fan_Tach
10 : GND
11 : 12VMain
12 : 12VMain
13 : GND
14 : 12V1
15 : 12V1
16 : GND
17 : 12VSB
18 : 5V
19 : GND
20 : 5V

Compare it to the ATX standard:
Share
April 18, 2011 6:17:30 PM

ko888,
you are the man. I know the info you provided me with doesn't help my situation but I got a clear answer to the problem that was making me scratch my head.
m
0
l
a c 1167 ) Power supply
a b α HP
April 18, 2011 6:33:58 PM

struct said:
ko888,
you are the man. I know the info you provided me with doesn't help my situation but I got a clear answer to the problem that was making me scratch my head.

I've read this response in the HP forums when someone else also asked if the Z200's power supply unit could be upgraded:

"The official response from HP was no other power supply on the market will fit and even if one was found it would void warranty."
m
0
l
May 2, 2011 11:46:55 PM

Best answer selected by struct.
m
0
l
Anonymous
a b ) Power supply
a b α HP
February 20, 2013 12:28:42 AM

I had a problem with my Z200 when trying to install another PSU, HP does use a propiotery motherboard connector preventing the use of any other power supply with the system, however I did however manage to make a small adapter which allows any standard ATX power supply to be used with the propitory motherboard connector, it swaps the pinouts and contains a small DC-DC convcerter board to raise the standby voltage. I would be happy to make it for a small fee if anyone is interested, contact me at GeorgeBurgess24@Gmail.com
m
0
l
April 20, 2014 3:49:59 AM

ko888 said:
When I look at the pinout of the 20-pin main power connector for the original HP Z200 power supply unit . . .

Pin : Signal / 1 : GND / 2 : GND / 3 : –12V / 4 : GND
5 : GND / 6 : PS_ON / 7 : GND / 8 : Fan_CMD
9 : Fan_Tach / 10 : GND / 11 : 12VMain / 12 : 12VMain
13 : GND / 14 : 12V1 / 15 : 12V1 / 16 : GND
17 : 12VSB / 18 : 5V / 19 : GND / 20 : 5V


I hope I will be forgiven for going off-topic here, but may I ask...

From where does one obtain this pinout data?

- Did you simply observe the color of the wire-insulation present on an actual copy of the PSU (or from good-quality photos of the PSU)?

- Or did you copy & paste this pinout data from an HP website or an HP pdf-file?

I am looking for the same type of pinout data for the HP Compaq DC7900 CMT [Convertible Mini-Tower], and am not sure whether I can just determine (with absolute certainty) the pinout data by direct observation of the wire-insulation colors, or whether I really need to find the pinout data from an HP Data Sheet somewhere [I've searched online for it, but have yet to find it].

EDIT: . I just found the answer to my own question, and have posted it at:
http://www.tomshardware.com/forum/id-2000888/dc7900-psu...
m
0
l
a c 1167 ) Power supply
a b α HP
April 20, 2014 11:28:01 AM

Upgrader3 said:
I hope I will be forgiven for going off-topic here, but may I ask...

From where does one obtain this pinout data?

- Did you simply observe the color of the wire-insulation present on an actual copy of the PSU (or from good-quality photos of the PSU)?

- Or did you copy & paste this pinout data from an HP website or an HP pdf-file?

I am looking for the same type of pinout data for the HP Compaq DC7900 CMT [Convertible Mini-Tower], and am not sure whether I can just determine (with absolute certainty) the pinout data by direct observation of the wire-insulation colors, or whether I really need to find the pinout data from an HP Data Sheet somewhere [I've searched online for it, but have yet to find it].

EDIT: . I just found the answer to my own question, and have posted it at:
http://www.tomshardware.com/forum/id-2000888/dc7900-psu...


Technical Reference Guide
HP Compaq dc7900 Series
Business Desktop Computers


Page 7-5

http://h20566.www2.hp.com/portal/site/hpsc/template.BIN...
m
0
l
April 20, 2014 12:03:25 PM

As ko888 shows, the standard ATX PSU connector is incompatible with the HP z200 PSU-to-mobo pinout.

Along the lines of the February 20, 2013 post in this thread [by Anonymous, aka GeorgeBurgess24@Gmail.com] . . .

If you want to pursue DIY work-arounds (that will allow you to go ahead and connect a standard ATX PSU to a motherboard with a proprietary pinout), here are two links with potentially relevant "how to" information:

http://www.fixya.com/support/t3207823-dc7100_compact_po...
> See solution by joecoolvette

http://www.tomshardware.com/answers/id-1833076/odd-moth...
> See "Best Solution" and subsequent posts in this thread
m
0
l
a c 1167 ) Power supply
a b α HP
April 20, 2014 12:10:42 PM

My answer is specifically in response to your statement:

Quote:
I am looking for the same type of pinout data for the HP Compaq DC7900 CMT [Convertible Mini-Tower], and am not sure whether I can just determine (with absolute certainty) the pinout data by direct observation of the wire-insulation colors, or whether I really need to find the pinout data from an HP Data Sheet somewhere [I've searched online for it, but have yet to find it].
m
0
l
April 20, 2014 12:12:35 PM

ko888 said:
Upgrader3 said:


... I am looking for the same type of pinout data for the HP Compaq DC7900 CMT [Convertible Mini-Tower] ...



Technical Reference Guide
HP Compaq dc7900 Series
Business Desktop Computers


Page 7-5

http://h20566.www2.hp.com/portal/site/hpsc/template.BIN...


Thank you for taking the time to post the source link for the HP dc7900.

It's interesting that HP uses the standard pinout for the dc7900 (and likely the 7600 / 7700 / 7800 also), but a proprietary pinout for the z200 (and probably the 210 / 220 / 230 also).
m
0
l
!