Andy's Workshop Forums

General Category => Hardware projects => Topic started by: Roy on January 27, 2018, 02:39:38 am

Title: HP Z440 12 pin Memory connector
Post by: Roy on January 27, 2018, 02:39:38 am
Hi I am Roy from Berlin.

I try to find the pinout for the p2 connector, p1 ist the 18 pin connector for Main Board power,
P2 is the 12 in cpu0 memory connector. I have ordered the Adapter atx- 18 pin, but I can't find the right thing p2 connector. I bought a 12 pin cable with the right connector, but I need the pin out. There was a project with a hp z800, but the p2 connector is different, only 10 pins.

Thank you
Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on January 30, 2018, 02:00:24 pm
I have bought a power supply for z440 and I will make a measure.

some pictures in attechement

Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on January 30, 2018, 02:32:21 pm
see attachments
Title: Re: HP Z440 12 pin Memory connector
Post by: hen6e on January 30, 2018, 11:20:46 pm
I just bought this board a few days ago.By measuring the impedance of pins from the connector , I guess the pinout is as shown in the attachment.But I cannot confirm that.So, your measurement will be the final result.
Finally, Can you share the pinout of  24pin-to-18pin adaptor?
Title: Re: HP Z440 12 pin Memory connector
Post by: hen6e on January 30, 2018, 11:23:17 pm
here is the attachment
Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on February 10, 2018, 01:36:37 am
Excuse for late reply, I was on holiday trip.

Thank you for the pinout you are right, I have checked it with the cables of the original power supply. For the 18 pin connector I cannot find out the pinout on this way, but I think it is the same like for older version z620 z820. It is possible to by adapter for low price (company adaptere).

The next problem is the cpu fan, 6 pin ! My fan has only 4 pin.



Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on February 10, 2018, 03:25:42 am
I have attached pictures from the power supply.

P2 Connector

upper row
green green white white orange orange 
   1       2        3      4        5         6
down row 1-4 connected together in one point grnd connected together in second point (all black)


see attached pictures

green V12-CPU2
white V12-CPU0
orange V12-M

I have found only this adapter, but long time delivery

https://www.aliexpress.com/item/High-Quality-new-ATX-24Pin-to-18Pin-8pin-to-12pin-Adapter-Power-Supply-Cable-for-HP/32830069041.html


Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on February 10, 2018, 03:55:27 am
May be I found the answer for the cpu fan 6 pin connector?

Could be the same like z800, found in mobohack z800
Title: Re: HP Z440 12 pin Memory connector
Post by: hen6e on February 12, 2018, 10:05:35 pm
Thank you Roy.
I think the 6-pin fan's pinout  is connecting 6.5.1 together as groung, other pins are like generic 4-pin fan.
Because of Chinese Spring Festival I can't test it in about 10 days.
We can communicate with each other with a instant messaging software.
As for power supply I want to use a server psu DPS-800GBA so I don't want to use that adapter although that seller is close to me.
Thank you for your pinout again.
Here is a photo of the orignal fan from Taobao.

Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on February 13, 2018, 08:48:51 am
Thanks a lot,

I have tested the P1 , it is total different to z420... I could not find any 11 V and there is a special problem for the 5V - only one cable, the motherboard decided, "now I give 5V free for using".

The boot process stopped by switching on the cpufan, no voltage on USB for making bios update and no signal to the nvidia p1000 graphic card.

I will check the connection of 6.5.1 and try it again. I hope, the mainboard is not defect. I am angry because of chassi ID or other blocking ideas of HP engineers.

I am able to give you the pinout of P1 but some pins are going directly to sata...
Title: Re: HP Z440 12 pin Memory connector
Post by: hen6e on February 13, 2018, 07:04:53 pm
As I have learnt, the p1 connector pinout should be as shown,but I need your confirm.
The 10、1 Pin is output for 5V equipment like sata from VRMs on the motherboard.
The 16 pin is a POWER_GOOD signal,which trun to HIGH when the PSU finish startting period.
The 17 pin is a 5v stand_by voltage which is different from z420's 11V.
The 18 pin is a negative 12V input for RS232.
The 8 pin is PS_on,connect this pin to groung will trun on the PSU.
The 9 pin PSU_ID tells the motherboard which psu is installed ,it is different from standard ATX psu.
If you have oscilloscope or logic analyzer, please capture the waveform of PSU_ID.
Thank you!
Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on February 14, 2018, 12:27:13 pm
I am not sure if the connection of 651 of fan connector is right.

Your pin descriptions could be right, but I am not able to organize a oscillograph.
This 11V pin (old) is z440 the only one connection to the power supply with 5 V.

I will change the mainboard because of defect. That's why I have a power supply for z440 available for 145 GBP + delivery costs, sombody interesting in buying?
Title: Re: HP Z440 12 pin Memory connector
Post by: hen6e on February 15, 2018, 12:39:20 am
Do you  use  reg  ecc  ddr4  memory? It  seems that only this kind ram can be used on  the board .
Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on February 15, 2018, 08:59:02 am
I try to build a working place for autocad and 3d studio max.

My first idea

Motherboard z440
Intel Xeon e5-1620 v4
Cpu fan noctua
Ram Kingston reg ecc KTH-PL424 2 x 8 GB (one bank1 one bank 8)
Corsair MP500 240 GB SSD with adapter for m.2 scsi
Monitor lg 43ud79-b
Pny quadro p1000
Power supply atx with adapter

First change (because of don't found the right adapter)
Power supply for z440

Second change
Motherboard asus x99-a
Power supply atx
No adapter for ssd

I hope next week I will be ready for work.
Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on February 15, 2018, 09:06:45 am
Cpu fan 6-pin connector

If pin 5 would be RPM for second fan
If pin 6 would be PWM for second fan

It would be not the best idea to connect with pin 1,

May be it's better leave pin 6 and connect pin 3 with pin 5
Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on February 20, 2018, 04:54:23 am
I have 1 and a half running systems.
During the first switch on was the same problem like Z440 Mobo,
no screen , boot precedure stopped with memory error.

But the A99-a has a very nice manual and I was able to make
a bios update.... The system runs stabil. I was happy to use my
reg ECC DDR4 2400 RAM. Installing Windows 10 64 bit with USB-Stick
where without complications with the ssd corsair MP500 240 GB.

first:
Motherboard Asus A99-a
Intel Xeon e5-1620 v4
Cpu fan noctua 14cm
Ram Kingston reg ecc KTH-PL424 2 x 8 GB
Corsair MP500 240 GB SSD with adapter for m.2 scsi
Monitor lg 43ud79-b
Pny quadro p1000
Power supply atx 550W
ATX Tower (old)

half system for selling or storage:
Power supply for z440 tested could not find any mistakes
Motherboard Z440 (no idea to flash the bios because no manual)
adapter for ssd
Tower Z600 (empty)
Adapter for Z420 Mobo 24 pin to 18 pin
2 connectors 12 pin

Thank´s all for the interest. Excuse me for not supporting you in reading
the power supply ID, I don´t know how.
Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on February 20, 2018, 04:59:24 am
Dear hen6e

don´t use your fan (6 pin) without changing the connections pin 5 and 6 and 1.

You could kill the mobo, I had it 5 min switched on and it was very "warm" in the near of the fan.
Title: Re: HP Z440 12 pin Memory connector
Post by: hen6e on February 25, 2018, 08:06:52 am
I have made a breakout board pcb for my  psu  DPS-800 gba .Once I have progress ,I will share it with you.
Title: Re: HP Z440 12 pin Memory connector
Post by: hen6e on February 25, 2018, 11:25:38 pm
Thank you  for your advices about  the fan  connector. Maybe we have different definition of the first pin .May be we just counted from opposite side.
Title: Re: HP Z440 12 pin Memory connector
Post by: hen6e on February 28, 2018, 07:06:23 am
Hi Roy.
You said that you met a ram error,maybe you didn't insert the dimm in a correct slot.
from a pdf file the memory load order is as shown.
Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on March 02, 2018, 07:21:18 am
Thank you for the idea, hp forum say in this case (no screen a after boot) make bios update via usb. I had no success. Could a change of bios possible, 10 pound from China.
Title: Re: HP Z440 12 pin Memory connector
Post by: Roy on March 02, 2018, 08:02:02 am
No option, bios is soldered.
Title: Re: HP Z440 12 pin Memory connector
Post by: hen6e on April 21, 2018, 11:36:10 pm
I have used my z440 board for quite long time.I have resolve the post error om start.
Title: HP Z440 12 pin Memory connector
Post by: Kamswomy on August 12, 2019, 03:47:24 pm
The other day I unplugged my GP and the USB charging connector came out  Is this a repairable item? Is there a way to by-pass the missing connector and charge the battery another way??

Help

Michael