Question about HP HEATSINK FOR WORKSTATION XW8400 XW6400 CPU Heatsink

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HP XW6400 CPU fan connector is 5 pn, which is uncommon. Can you describe the on board pin assignments with the connector tab on the right. A picture or diagram would be very helpful

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  • HP Master
  • 1,058 Answers

5pin, not pn
hp does not publish this.
the expect you to just by HP parts on the parts-surfer page.
and it plug right in and works
most machines generic, like say a ASUS mobo'
have 3 pins, ground, power and TACHMETER pin.(RPM)
so
why not asks on the HP forum and not here,
other ask this before, on 1000s of examples same.

in your case its a thermister there not RPM
so is custom to HP. see? no thermisters are the same.

truely and endless topic on that fan and no facts or data.
but one wire is 12vdc aother is ground.
the other 2 are thermstor. if you skip this the BIOS gets upset.
PTC or NTC, not even known.
Id try to move the thermistor from old to new fan.

https://h30434.www3.hp.com/t5/Desktops-Archive-Read-Only/xw6400-amp-xw6600-fan-secrets-Quiet-Workstations/m-p/5086557/highlight/true#M294100

Posted on Sep 12, 2017

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If you take a closer look to that connector you will see that there is a short piece of cable running from pin 1 to 5. So if you have a four pin connector all you have to do is replicate the connection and you are done.

Posted on Sep 12, 2017

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Posted on Jan 02, 2017

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SOURCE: error on startup

can u check ur motherboard where u have connected the processor fan. mostly it will be near the processor slot. so see if u have plugged it somewhere else

Posted on Dec 01, 2008

Geekman
  • 32281 Answers

SOURCE: Need the pin assignments for the mother board

On most motherboards the front panel connections are printed in the connectors on the motherboard. When you connect the various LED indicators and when you power up and they do not light up then just switch the connectors around, because they are are polarized.
You can go to the motherboard WEB site (ASUS) to download a manual, the manufacturer and model number is printed on the motherboard.

Posted on Jun 29, 2009

  • 69 Answers

SOURCE: 920-fan command 2 pin connector from power supply not connected

then connect the fan to a 2-pin connecter if you cant do it take it to a computer place to do it for you

Posted on Sep 24, 2009

  • 14 Answers

SOURCE: "CPU fan stopped working" message,

You can order a replacement fan from HP. Search for replace parts under your model computer when you go to HP's web site.

Posted on Aug 10, 2011

paul2010
  • 160 Answers

SOURCE: Need a HP Pavillion a1514n wiring diagram

Here is a link to the HP website, here you will be able to download the original manual which will show you connectors etc
cheers
p

Posted on Sep 24, 2012

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Hp mother board model ms7336 cpu fan can"t detect no option enter to bios pls help me


hello, HP motherboards are very picky on what types of fans you install.
question: your cpu fan, does it have a 3 or 4 pin connector?
do you get error msg when you first turn on your computer about cpu fan not present?

also most hp,dell,compaq motherboards have very limited bios features to monitor fans and other hardware,

Dec 02, 2016 | HP Computers & Internet

1 Answer

Intel fw82801db


on your board theres is a spot where the fan from the cpu goes it saids cpu fan on the board near by cpu socket

Aug 06, 2013 | Asrock Computers & Internet

1 Answer

Recently changed the power supply. There is no video output. Where can I download the motherboard schematic?


Right here at HP Support,

1) Motherboard Specifications:

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00361570&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=459491

Scroll the page down to the top view illustration, and photo.

A) The motherboard uses a 24-pin ATX main power cable.
In the illustration the connector on the motherboard is on the right side.
It is an empty rectangular box with ATX Power Connector in it.

On the motherboard photo it is the rectangular white connector with two rows of 10 socket holes, and is to the bottom right of ram memory slot 2.

Another example of a 24-pin ATX main power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atxmain24

Ensure that the 24-pin ATX main power cable's connector, is locked into place on the motherboard's connector. The lock tab on the main power cable must be hooked over the tab on the motherboard connector. This ensures that the main power cable is in all the way.

B) The motherboard uses a 4-pin ATX +12 Volt power cable.
The connector on the motherboard is a white square connector, with 4 socket holes.

In the illustration it is to the bottom left corner of the Processor socket (LGA 775), and has ATX12V underneath it. This power cable's connector also has a lock tab.
Another example of a 4-pin ATX +12 Volt power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#atx12v4

Power TO the motherboard, that's it.

Power FROM the motherboard:

C) System Fan, and CPU (Processor) Fan.

Abbreviated as SYS_FAN, and CPU_FAN to the bottom left of the ATX12V connector.
(4-pin ATX +12 Volt connector on the motherboard)

The System Fan is the computer case fan.
CPU Fan is the Processor fan.

D) The four SATA headers on the bottom right in the photo, (Blue, Orange, Black, and White), are for the SATA data cables.
They connect to a SATA harddrive, or SATA optical drive. (CD/DVD drive)
(They are an L shaped connector inside, with 7 pins inside)

Power for these SATA devices comes from the Power Supply.
The Power Supply has SATA power cables.
Example of an average SATA power cable,

http://www.playtool.com/pages/psuconnectors/connectors.html#sata

(L shaped connector with 15 pins inside. The longer connector between a SATA data cable, and a SATA power cable )

Did you forget which SATA data cable plugs into where, on the motherboard?
Don't sweat it.

The beauty of SATA is that you can plug the harddrive's SATA data cable into ANY of the SATA headers (Connectors) on the motherboard, and BIOS will find it.
Same with a SATA optical drive, or any SATA device, for that matter.

IF, your SATA harddrive has a place on the back for BOTH, a SATA power cable, and a 4-pin standard Peripheral power cable, ONLY use the SATA power cable.

Using both will eventually burn out the SATA harddrive!

Example of a 4-pin standard Peripheral power cable, (Misnomered as 'Molex'),

http://www.playtool.com/pages/psuconnectors/connectors.html#peripheral

From there the main optical drive, (CD/DVD drive), has to have the audio cable plugged into the audio connector on the motherboard.
(Plus the power cable, and data cable, of course)

In the illustration this is the header down in the very far left corner, and located towards the bottom edge.
It has CD_IN marked underneath it.

In the photo it is the Black rectangular connector in the very far left corner.

If you didn't connect the 4-pin +12 Volt power cable, your Processor isn't getting any power.
No Processor operating, No computer.

No Signal on monitor.
(No video signal)

For additional questions please post in a Comment.

Regards,
joecoolvette

Jul 24, 2011 | HP Compaq Presario SR1430NX (PS566AA) PC...

1 Answer

I need to confirm the location of the extra fan connector; eMachines T4852 The mainboard manual lists 'Fan Connectors' page 11, but there is no information about Fan connectors on that page. Emachines Chat...


It if is a three pin male "receptacle" with a tab on one side and open on the other, it is in fact a fan connector. Most motherboards have them labeled right on the motherboard as Chassis, CPU, etc.

Jan 11, 2011 | E-Machines Computers & Internet

1 Answer

Hi i have a Codegen model 450x case and i am trying to install a Gigabite GA-P35-DS3R motherboard and am having troulbe with the start switch wires, the cases wires do not matgh the diagram in the...


I'm not sure what you mean when you say the case wires don't match the diagram. You might mean there is already a plug on the end of the wiring, and this plug doesn't match the board header. If you're reusing the case from a name-brand machine like a Dell or HP, this is possible. They often get custom versions of motherboards made, and their front panel connectors are usually a nonstandard layout. On the other hand, in a generic retail case, the front panel wires normally have separate connectors on the ends for the switches, indicator LEDs and any front panel USB and audio jacks.

This is the front panel header diagram I found in the manual for your board (I looked at version 2, but the connections should be the same if yours is a different version):

pgh_pa_guy_3.png

This board has an Intel standard layout for the header. If your wiring has separate connectors, the start (power) switch wires will plug onto pins 3 and 4. I have never seen a retail case come with anything other than a two-pin plug on the end of the power switch.

If you are dealing with a custom plug on your case's wiring, what you can do is remove the pins from the housing. They almost always are held in by a plastic tab on the connector shell that engages a tang on the pin. Use a thin object like a small flat-blade screwdriver or a knife tip to lift the tab and you can slide the pin out. Insulate each pin with small-diameter heat-shrink tubing if you have it, or a layer of electrical tape. (I prefer the heat-shrink tubing, which is neater and more permanent.) Then you can put each pin over the corresponding pin on the motherboard's front panel header. Unless the pins are very loose, they will stay in place by friction. I often use this technique when salvaging a case.

As for the CPU fan, be sure you have the connector over the right pins. Here is the diagram from the manual:

pgh_pa_guy_4.png

You might need to rearrange the pins in your fan power connector if they don't line up correctly. This layout looks a little strange.

Dec 21, 2010 | Codegen (PS-450W) (PS450W) 450-Watt Power...

1 Answer

ASUS P5KPL-AM CPU fan connection.


You should still be able to connect the 3 pin connector of the fan to the 4 pin connector on the mobo, the keying tab is offset so that you cannot connect it to the wrong pins.
If you still don't want, or can't connect it there, simply go on the Bios (press delete after you turn on your computer) and you will find an option to monitor CPU fan speed.
If you need any more help, let me know

Alex
www.CAS411.com

Mar 28, 2009 | Computers & Internet

2 Answers

Extra wire /fan 3pin hole 1wire where to plug in X 2 fans


If your cpu fan has a 4 pin connector & your mb has a 3 pin you can still use it. Just leave one pin exposed. The extra pin is for a speed control sensor that not all mb's support. The chassis fan has a different connector on the board marked "cha fan". This one is a 3 pin connector. Most of the asus boards have 1 of these. If you wish to run more than one you can either buy a "y" adapter that allows you to connect 2 fans to 1, you could use an extra 4 pin molex to power an extra fan but that would give you no control over the fan, or you could buy a fan controller and hook all your extra fans to it. Hope this helps & please take a moment to rate my solution fixya. Thanks.

Feb 14, 2009 | ASUS MB M3A78-EMH HDMI RT Motherboard

1 Answer

CPU fan that cam togther with my CPU has 3 pin conector, but the motherboard has 4 pin Conector. That dosent sems to work ut


The extra pin on the motherboard is for a speed sensor connection which your fan does not have. The plug on the fan cable has two plastic tabs which fit over a tab on the motherboard connector. Just line the tabs up and the plug will fit properly. The fourth pin on the motherboard just won't be used with your fan.

Dec 14, 2008 | Computers & Internet

4 Answers

CPU fan not detected.....


The cpu fan has a three wire connector that connects to the mother board. Usually located to the right & up from the cpu. If yours is connected currently the wires may be miss aligned. From left to right the pins are: first pin ground/Black; middle pin 12v./Red & last pin rotation/Blue. There may be a bios update that address this issue. Dell does not give up information easly.

Jan 13, 2008 | Dell Dimension 2350 PC Desktop

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