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I just bought a mobo out of a Compaq, p/n 252608-001. Same old problem.... any idea what the pinout of P5 (front panel header) is?? Nope, it is not color coded! Nope, the mobo is not going into a compaq case. I did follow research leads from a Sept 07 link, but I cannot find that info listed anywhere. PLEASE help!!!

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Re: I just bought a mobo out of a Compaq, p/n 252608-001....

Circuit City and CompUSA both have some excellent techs, many of whom will copy the page of the schematic that you need out of their Service Manual and give it to you.

Posted on Jan 11, 2008

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Re: I just bought a mobo out of a Compaq, p/n 252608-001....

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1 Answer

Intel D915GRO diagram

The Intel D915GRO/D915PRO/D915GVRO mobo is made by Intel for Sony.

I've been told the mobo is the same as the Intel D915GAG,

,in reference to the Front Panel header pinout, and so on.

Click on ->
Intel Desktop Board D915GAV Product Guide - English (PDF),
in blue.

Post back in a Comment, and tell me if this is true.


Jan 27, 2013 | Sony VAIO RB30C (VGCRB30) PC Desktop

1 Answer

I need pinouts for the sony vaio pcv-1116's motherboard

This is Not a Solution. Using Solution box as a Clarification/ Comment box.

What other model numbers are there listed? I should be able to cross-reference a PCV-1116, but cannot. Once I find the motherboard, I may be able to tell you what the pinouts are.
(Such as Front Panel header pinout on the motherboard)

Post back in a Comment.

Dec 12, 2012 | PC Desktops

1 Answer

Compaq system board 686,0MB (320756) board manual

That's an old mainboard (Motherboard), used in a Compaq Presario 5716 desktop computer. (And perhaps a few other Compaq Presario's)

1) Uses a Slot 1 (Intel) processor slot.

2) Maximum Intel Slot 1 processor that can be used, is an Intel Pentium III, with a 100MegaHertz Front Side Bus. (100MHz FSB)
Maximum frequency rate for the processor is 700MHz.

(Scroll the page down)

3) Ram memory is SDR Sdram at 100MHz. Or also known as PC-100. (168 pin. 82 on each side. Two Locating Notches on bottom. Commonly just known as Sdram, but that is a misnomer)

Maximum TOTAL Amount of ram memory is 384MegaByte.
Maximum Amount for each ram memory slot is 128MB.
There are 3 ram memory slots.

4) Do not know what the jumper settings on the motherboard are.

5) Do not know what the Front Panel header pinout is.

6) Can run Windows XP Home Edition, but do not expect a world of performance.


Jun 10, 2012 | Compaq PC Desktops

1 Answer

How do i hook up usb button in intel 845 motherboard

Well, that's a start. You know you have an Intel motherboard in your eMachines, that uses an Intel 845 motherboard chipset.

It is an Intel D845GVSR motherboard.

Left-click on the blue -
Intel Desktop Board D845GVSR Product Guide (PDF)

This is a PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
(I would advise upgrading to Adobe Reader X { 10 }, however, if you don't have it )

After you click on the above link, it may take up to 30 seconds before the first page comes up. (Took 6 seconds just now. Adobe Reader X, and medium speed DSL connection)

At the top of the PDF file, is the PDF file page number box.
It is to the left of the Down Arrow.
Go to Page 11.
T is the Front Panel USB header.

This is where the USB ports on the front of the computer, (Front Panel) connect to.

Go to Page 31.
E is the Front Panel USB header.
The Front Panel USB header is J9F2.

Observe the numbers next to the pins.
Go to Page 33.
This is the pinout for the Front Panel USB header, using those contact pin numbers.

1, 3, 5, 7, and 9 = one USB port
2, 4, 6, 8, and 10 = one USB port

Notice pins 9 and 10 are not used.

You can connect two USB ports to this header.

The pinout of ANY USB connector, female, or male, is set to a Standard.

This is the standard pinout for USB connectors,

In case you cannot download the Intel D845GVSR motherboard manual;

Looking at the motherboard in it's normal position, installed into the computer case, the USB header is on the Bottom edge of the motherboard.

It is to the immediate Right, of the bottom white PCI slot (PCI 3)
It is to the Left of the motherboard mounting hole.
It is Below the Intel 82801DB, Southbridge chip.

Two rows of pins.
5 across the Top row, 4 across the Bottom row.

STARTING on the Left side, (Towards the white PCI slot), and going towards the Right, the pins on Top are numbered,
Pins 2, 4, 6, 8, and 10

STARTING on the Left side, (Towards the white PCI slot), and going towards the Right, the pins on Bottom are numbered,
Pins 1, 3, 5, and 7

Pins 1, 3, 5, and 7 = One USB connection
Pins 2, 4, 6, and 8 = One USB connection

Pin 9, and Pin 10 are Not used. (N/C. No Connection)

A) Pin 1 is for Power

B) Pin 3 is for D-
The Data, or Signal wire. It is the Negative connection

C) Pin 5 is for D+
The other Data, or Signal wire. It is the Positive connection

D) Pin 7 is for Ground

Going to the other USB header;
A) Pin 2 is for Power

B) Pin 4 is for D-

C) Pin 6 is for D+

D) Pin 8 is for Ground

For additional questions please post in a Comment.

Out of curiosity which eMachines is this?


Nov 24, 2011 | E-Machines eMachines Desktop PC

1 Answer

Front panel wiring diagram ie power switch reset switch etc

HP Support > Compaq Presario SR5501F > Motherboard Specifications,

The motherboard is made by ECS for HP/Compaq
ECS model number is MCP61PM-HM
HP/Compaq's name is Iris 8.

There is no wiring diagram per se to give you.
I'll have to detail the wiring connections step by step for you.
This may be a little lengthy.

On the link above you are looking at a photo of your motherboard.
There is also an illustration available.
I would like you to copy, and save them both.

Using this method you will be able to enlarge them for further clarity, of the connections to the motherboard.

Right-click on the motherboard photo. Left-click on Save Image As, in the list.
In the Save Image window that comes up, you will see the heading File name:
To the right of File name: will be c01237541.

Unless you want to search for c01237541 you may wish to do this:

Put your mouse cursor after the 1 in c01237541.
Left-click twice.
Make one space with your spacebar.

Type Compaq Presario SR5501F Mobo photo.
(Mobo stands for MOtherBOard)

You want this photo to go to your My Pictures folder.
(Windows XP. Different for Vista)
At the top of the Save Image window is the heading - Save in:
In the box to the right you should see - My Pictures

If you do Not you will have to change the destination.

Left-click on the blue down arrow to the right of the box.
In the list, left-click on - My Documents, then left-click on - My Pictures.
Now go to the bottom right of the Save Image window, and left-click on Save.

In the link, scrolling down you will see the heading - Motherboard layout
Left-click on the + sign next to Motherboard layout.
Copy and save it as you did for the motherboard photo.

In the File name: box type - Compaq Presario SR5501F Mobo Illustration.

Now all you have to do is go to your My Pictures folder (Start>My Pictures), and double-click on the photo, or illustration.
Left-click on the Zoom In icon at the bottom of the window to enlarge.
(+ sign in a magnifying glass icon)

Wiring Connections to the Motherboard:

A) Front Panel header: (Panel 1)

The Front Panel, is the plastic front of your computer where the Power On button, HarDDrive LED light, and Power On LED light is located.

The Front Panel header is the connections, or pins, on the motherboard, where the cables (Wires) go to from the Front Panel.

On the motherboard illustration it is marked as Panel 1.
(Down in the bottom right corner)

On your motherboard, Panel 1 (Front Panel header) is Black in color.
As you can see it is a rectangular block, and is placed vertically.
Has 2 columns of pins.
5 in the left column, 4 in the right column.

The Left column is numbered Odd.
Starting at the Top going down, Pins 1, 3, 5, 7, and 9

The Right column is numbered Evenly.
Starting at the top going down, Pins 2, 4, 6, and 8.

Pins 1 and 3 are for the HarDDrive LED light.
(HDD activity LED)
Pin 1 is for the Positive connection ( + )

Pins 5 and 7 are for the Reset switch.
Pin 7 is for the Positive connection. ( + )

Pin 9 is reserved, and may not be used.

Pins 2 and 4 are for the Message LED light. (LED = Light Emitting Diode)
Power On LED light.

Pins 6 and 8 are for the Power On switch.
There is No Pin 10.

If the cables (Wires) are not marked coming from the Front Panel, you will have to remove the Front Panel, and trace where they go.

You will be able to physically see where wires go to the Power On switch, Power On LED light, HarDDrive activity LED

Sep 21, 2011 | HP Compaq d530 SFF PC Desktop

1 Answer

I can't find where the connections of the front panel are on the motherboard or where they go?

The eMachines T2893 desktop computer uses an Inte G845GVSR mobo. (MOtherBOard)

Intel Support>D845GVSR>Motherboard Manual,
(Intel's name - Product Guide),

I would like you to left-click on the top file.
Click right on - Product Guide - PDF, in blue.

(File name underneath it is -
File Name: D845GVSR_Product Guide_English.pdf )

May take up to 30 seconds, before you see the first page.
(You will be staring at a blank screen until the first page comes up. The file is downloading in the background)

Took 5 seconds before I saw the first page, and an additional 12 to fully download, using a medium speed DSL connection.

The Front Panel header on the mobo is shown on Page 31. (C on the illustration. J9G1 on the mobo)

The Front Panel connections are on Page 32.

Barring that you cannot download this PDF file, or do not understand the manual, I will detail the Front Panel header connections.

Orienting the motherboard so we are both looking at it the same way;

The Processor is at the top, the ram memory slots are to the right side of the mobo, and the white PCI slots are to the bottom.

There are three PCI slots. The one closest to the Processor is PCI 1.
The one closest to the edge of the mobo is PCI 3.

To the far right of PCI 3 is the Front Panel header.
It's the header located closest to the Right side of the mobo, and the bottom edge, and is directly below the
CMOS battery.

There are two rows of pins.
Four across the top, Five across the bottom.

The top row of pins are numbered Evenly.
The bottom row of pins are numbered Odd.

Starting from the Left side of the mobo, going to the right, on the Top row,

Pins 2, 4, 6, and 8. (There is No 10)

Starting from the Left side of the mobo, going to the right, on the Bottom row,

Pins 1, 3, 5, 7, and 9.

A) Pins 1 and 3 are for the Harddrive Activity LED
If you have a wire with a + sign on it (Positive) it goes to Pin 1.

B) Pins 2 and 4 are for the Power On LED.
(Pin 2 to the Green LED lamp, Pin 4 to the Yellow LED lamp, if applicable with your computer)

C) Pins 5 and 7 are for a Reset switch. (If applicable)
(Pin 5 is Ground)

D) Pins 6 and 8 are for the Power On switch.
(Pin 8 is Ground)

E) Pin 9 is for the +5 Volt power.

(You are following Anti-Static precautions, right?)

Have any questions just post in a Comment.
(Believe upper right of your page)

Jun 13, 2010 | E-Machines T2893 PC Desktop

1 Answer

Looking for a manual and motherboard layout for a compaq presario 4090us 4000 seirs 900MHz duron processor

According to my sources a Compaq Presario 4090us is supposed to use an FIC AZ31 motherboard.
FIC = First International Computer, Inc.)

I don't have a motherboard manual available, but MAY have a motherboard layout.

Supporting Data:

Specifications from HP Support: (HP bought out Compaq)

1) Processor:
AMD Duron 900
Maximum Frequency Rate: 900MegaHertz
Front Side Bus: (FSB) 200MHz
Voltage: 1.6 Volts (DC)
Wattage used at maximum capability: 36.5 Watts
Part Number: (Top of Processor case. Heatsink, and thermal paste removed)

2) Ram Memory:
Maximum Total Amount: 768MB
Maximum Amount for EACH ram slot: 256MB
SDR Sdram at 100MHz (PC100)

[Note* SDR Sdram is Single Data Rate Sdram, ram memory. Misnomer of just naming it Sdram is incorrect. All ram memory from SDR up to DDR3, IS Sdram]

3) Harddrive: 30B IDE harddrive. Should be a Quantum Fireball LCT20. (Part Number: QM30000-LD-A)

4) Motherboard Chipset: Sources state that it's a VIA KT133 chipset.
[Chip and Chipset are slang terms for I.C., or Integrated Circuit]

As you can see in the chart reading across from KT133, this chipset supports AP graphics cards that are 4X. Same thing is stated in the specifications from HP Support.

5) The HP Support specifications also state that the mobo (MOtherBOard) has one Primary IDE header for an IDE harddrive, one Secondary IDE header for an IDE optical drive, and one IDE header for a Floppy Disk drive.

Motherboard layout for an FICAZ34 mobo, which I believe is the same, in an additional comment to follow.

Apr 10, 2010 | PC Desktops

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