Question about HP Pavilion a1730n (RK574AA) PC Desktop

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Power switch I just need a new internal power switch cable. Mine broke and I have no idea where to buy one. I need a 7 pin internal power switch cable.

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  • HP Master
  • 3,400 Answers

TRY ANY PC-DEALER OR HARDWARESTORE.

Posted on Apr 29, 2013

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Need circuit diagram for HP m8100 GC673AA


HP Support > Pavilion Media Center M8100n Desktop PC > Main Support page,

http://h10025.www1.hp.com/ewfrf/wc/product?product=3440614&lc=en&cc=us&dlc=en&lang=en&cc=us

Product information > Product specifications > Motherboard Specifications, MCP61PM-HM (Nettle2 {HP name} ),

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01077676&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=3440614

The front of your computer is the Front Panel.
The area of contact pins on the motherboard, that the Main wires connect to, is the Front Panel header.
(Power On switch, Power On LED, HarDDrive activity LED, etc)

The Front Panel header is Black, rectangular in shape, and is situated in a vertical position; located in the Bottom Right corner of the motherboard. (Next to the mounting hole)

It is a standard 9-pin HP Front Panel header,

http://h30434.www3.hp.com/t5/Desktop-Hardware/Getting-a-new-case-i-need-Front-Panel-pinout/td-p/842897

Scroll down to the 9-pin Front Panel header photo, and pinout.

The 4-pin side is the EVEN side. Pins 2, 4, 6, and 8. There is NO Pin 10.
The 5-pin side is the ODD side. Pins 1, 3, 5, 7, and 9.

A) Pins 1 and 3 are for the HarDDrive activity LED. (Light Emitting Diode, so it is redundant to call it a light)

Pin 1 is for the Positive ( + ) wire.
IF the HDD LED is dim when the harddrive is active, (IN use), switch the wires around.

B) Pins 5 and 7 are for a Reset switch, IF a Reset switch is used.

C) Pin 9 is N/C. Not Connected. Reserved for factory use, and it is +5 Volts.

D) Pins 2 and 4 are for the Power On LED.
Pin 2 is for the Positive ( + ) wire.
If the PWR LED is dim when the computer is on, switch the wires around.

E) Pins 6 and 8 are for the Power On switch.

Scroll the HP Support Motherboard Specification page down. Click on the + sign next to Motherboard Layout.

Left to Right on bottom edge of motherboard, Internal Connectors;

AUDIO_1 is for the audio ports on the Front Panel.
ATX_IN is where the small audio cable from the optical drive plugs in.
(CD/DVD drive)
IF TWO optical drives are used; the Main, or Primary optical drive, is connected with the small audio cable. NOT the secondary optical drive.

HD_AUDIO also connects to audio ports in the Front Panel.
May be mistaken, but don't believe SPDIF_OUT header is used.
1394A1 header is for the Firewire ports in the Front Panel (1394a)
USB 2 and USB 4 headers are for the Front Panel USB ports.
USB 1 and USB 3 should be for a Card Reader.

Need where the power cables go, and what they look like? Just post back in a Comment.

(Be SURE to FOLLOW Anti-Static Precautions)

Regards,
joecoolvette

[ Didn't think you actually wanted an actual circuit diagram. That is copyrighted by HP, and Elitegroup Computer Systems. (ECS)

Dec 03, 2012 | Computers & Internet

Tip

How to troubleshoot a system that boots up but wont display



  • VGA cable replacement
  • Needle-nose pliers
  1. Power downthe computer. Check the VGA cable running from the computer to the monitor. If the cable is not snugly seated in both ports, the video signal will not reach the monitor.
  2. Check the connector on each end of the VGA cable. Examine the nine pins on each connector. If any of the pins are bent or broken, the video signal will not reach the monitor. If there are just a few bent pins, you maybe able to straighten them with a pair of needle-nose pliers. Be careful not to break off any of the pins. If any of the pins are broke nor missing, you will need to replace the VGA cable with a new one.
  3. Disconnect all cables and peripherals from the computer. Open the computer case by removing the Phillips screws along the side or back of the case. Remove the cover or side panel to expose the internal components. Locate the VGA card and make sure it is fully inserted into the PCI card slot. If the card is not installed correctly, the video signal will not reach the monitor.
  4. Close the case, reconnect the power cord and all cables, and power up the computer. The video signal should display on your monitor.

on Jan 17, 2011 | Computers & Internet

1 Answer

Replacement part for HP Pavilion a220n switch?


why guess, why not say power problems and leave it like that.
simple,
bah you can buy used part for HP of ebay all day long
but why, first find cause. but that switch stock , oh boy../
that case switch is just a SPST norm. open momentary switch
you can remove it and jump test the wires easy.
super easy test. if the powersupply over loads it turns its self off
the

the logic takes over after that, that simple switch is just momentary,
dig?
first first off say its a DESK tOP, ok? so others dont need to look it up or guess wrong, some here (kids) never seen one ever.
"its a brave new world" no?

wow a year 2000 desk top 17 years old, and almost runs
take a photo and frame it
has a value of what $5 or as seen in deep racks of goodwill
nobody wants. endless used ones parked in attics.
or sent to 3rd world as gifts but i digress.
path of logic
switch momentary
MOBO sees that and with gates, turns on the PSU.
the PSU comes up, and if not overloaded
the PCU sends PowOK signal to mobo
and mobo holds up power.
they work as team , logically
and if the MOBO sees shutdown from windows
it can reverse that gate logic and shut off.
as we all see every day.
bad PSU can shut down if bad. all can, psu bad
or if the overload is real. by ATX design.
SOME mobo can to for other reasons
like fans dead, or CPU overheated.

my top tier, ASUS mobo does All that and more.
even has a tamper switch, option.... full features in mine.
some pSu can shut down for dead fan or overheat or both.
mine can , i use high end PSU.
what is inside the HP, mobo is anyones guess
they dont publish to that level, like mine is..... and why I build all my systems(DT)

so when working any DT keep all that in mind
its not as simple as most think, it seems


the switch is just a REQUEST for power.
or if pushed 2 times, the reverse, but is programmable THAT..





here is my 2 power pins
on the mobo (not yours)
i unplug the pwrsw jack
i short the 2 pins, there,
power stays on my switch is bad. EASY NO?



oddly the last line in your post solve it.
a generic switch, momentary.
but you can do that with 2 ***** wires in hand
if ok switch bad.
if not ok , not the switch,, 5min work.


power-sb45rmbgnq3k5u2zyfp0yvmq-3-0.jpg

Mar 02, 2017 | HP Computers & Internet

1 Answer

Cant get the timer to power up, I know incoming power is on 2 and 7 .do i need to jump to other terminals?


RTE-p1ad is 24-volt AC 8-pin on-delay timer.

Manual for RTE-P1 & RTE-P2
http://www.idec.com/language/english/catalog/U908/G_Timers_RTE.pdf

geno_3245_267.jpg
I have not wired the P1 timer.
Manual shows for ON-delay, 24VAC input power goes to terminals 2 and 7
Using multimeter set to read ohms, check continuity between pins 7 and 8 to see if these pins are connected internally, or if you need jumper.
Also check continuity between pins 1 and 2 for same.

When power is applied to 2 and 7, the ON delay countdown begins.
When countdown ends, the switches are activated.
geno_3245_268.jpgSwitches are represented by angled line that connects to terminals 1 and 8. When countdown ends, the switch moves left and and completes circuit to other wire.

Using multimeter set to 24VAC, you can check each of the pins by putting power to 2 and 7 and checking which pins have power after countdown ends.
The NC normally closed terminals are 1 and 4, and 5 and 8, so it appears that these terminals are ON all the time until countdown ends and 'contacts transfer power.' Test the pins to be certain.

There are contact numbers for product:
USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 317-IDEC

Feb 02, 2011 | RTO Idec Rte-p1ad24 24vac/dv Electronic...

1 Answer

Need wiring connection diagram for Power Switch to Motherboard for EMachine W2925 model. Wires were disconected accidentally while cleaning inside of tower


micha219, the eMachines W2925 desktop computer uses an FIC motherboard.
First International Computer { Inc }
The Model Number of the FIC motherboard is VC37.
FIC VC37.

Disregard the following if you are aware:
The plastic front of your computer is the Front Panel.
The area on the Motherboard that the cables (Wires) from the Front Panel connect to, is the Front Panel header.

Processor to the Top, Ram Memory slots to the Right, the Front panel header is in the Bottom Right corner.

It is a rectangular shape with two columns of pins.
The length goes up, and down on the motherboard.

The pins on the Right side of the Front Panel header are numbered Odd.
The pins on the Left side of the Front Panel header are numbered Even.

There are 4 pins on the Left side.
There are 5 pins on the Right side.

Starting at the Bottom on the Right side going Up;
Pins 1, 3, 5, 7, and 9.

Starting at the Bottom on the Left side going Up;
Pins 2, 4, 6, and 8.

A) Pins 2 and 4 are for the Power On LED light.
(If after connecting the LED light is dim, reverse the wires)

B) Pins 6 and 8 are for the Power On switch. (Power On button)

C) Pins 1 and 3 are for the HarDDrive Activity LED light.

D) Pins 5 and 7 are for the Reset switch. (Reset button. IF used)

Pin 9 is NC. Not connected

Oct 18, 2010 | E-Machines eMachines Desktop PC

1 Answer

Broke pins on blue cable


All you would have to do is visit a computer store and show them the cable that is broken and you will have to buy a new one. Sadly thje pins in those are not made to be replaced. Hope this helps your problem.

Jun 17, 2009 | Boston Acoustics BA745 Computer Speakers

2 Answers

Simple pinout help


Front Panel Header pin assignments as follows:

Pins 2 + 4 = Power Led

Pins 6 + 8 = Power Switch

Pins 12 + 14 = LAN Activity Led

Pins 1 + 3 = HDD Led

Pins 5 + 7 = Reset Switch

Pin 9 = +5v

Pins 11 + 13 = ODD Led

Pin formation is as below with no pin in position 10.

2 4 6 8 10 12 14

1 3 5 7 9 11 13

You will probably need to extend the Front Panel connector cable to reach the header pins on a replacement motherboard - I did this with 2 x N76HL 10 pin extension cables (male to female) from Maplin.

Mar 26, 2009 | Computers & Internet

1 Answer

Cable/ribbons


Which cable do you need, the one that goes from the video board to the main control board? Also the power cable clip can be found anywhere, its one of the most common clips.

If you just pulled the wire out of the plastic shroud, you can lift the leg that holds the wire in with a pin and shove it back in. If the wires broke, you can solder it back together or I probably have a replacement here.

Sep 05, 2008 | Akai PDP-5016H 50 in. HD-Ready Plasma...

1 Answer

Connection cable for the to moniters


This is custom cable, I called a company that sells AV cable, they say they could make a custom one for around $35.

Jun 27, 2008 | Durabrand Portable DVD

1 Answer

Power Switch for this PC?


I've read your question & am still confused about which switch you need. I'm guessing that it's the power switch on your case that is broke? If so you can go to just about any auto parts store & buy a push-button two wire off/on switch. Even in a Low's store. It may or may not fit just perfactly on your case but it's better then turning the power off with a pen directly off the motherboard. Been down the road your on. It's either this or buy another case. You will not find your case a new switch. You can use your case's wiring connector to plug into the board listed on pg. 1-18 in your manual. It's two pins. You can splice the two pin connector from your case to a new switch's wires. As far as connectors go. You can buy a small pack of single connectors for a computer from radio shack to connect to the boards (power) ATX power switch. All the parts shouldn't cost you more than $10.00. Cheeper than a new case!

Feb 15, 2008 | ASUS A7V333-X (A7V333-X/L) Motherboard

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