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The problem's with the video card or the vga cord; the monitor is just reacting to no signal from the graphics card. Check that the pins aren't bent. If they are, you can possibly straighten them once. The second time, they may snap off.

Since the KB just flashes once, it could be the power supply, or the motherboard. If the motherboard has any caps that are swollen on top or leaking, you might need a new motherboard.

Compaq Presario... | 148 views | 0 helpful votes

running the DEAD OS called XP are you? the virus magnet?
why not turn hibernation off first.

here are the firsts list ,
1: new RTC coin cell installed in laptop (tiny battery is first)
NO cell last 15 year old, why run this battery?????????????
very very unwise
2: park the huge new battery on the shelf till PC runs right again.
3: now run on AC power, this must work or the pack is bad (99%?)
4: ok it runs now, go to control panel and turn off hibernate.
CP + power, turn it all off.

now the dead thing,
do the HP long reset posted at HP 1,000,000 times.
  1. big battery out
  2. ac pack unplugged. from PC
  3. push power button for 10 second
  4. release.
this resets hibernate , and other oddities.

Compaq Presario... | 226 views | 0 helpful votes

a very very old Compaq.
right clicking the trackpad not the external usb mouse ????
you broke the cable to the track pad. switch set.
working on any laptop takes skills, to not do more damage
that you fix, even a pro makes this error. all do.
the cables are FRAIL, so are the sockets for them frail and break so very easy.
use a real USB mouse.
or go back inside and fix your damage.
its just a switch set and cables.
the pad part has its own electronics and its own cable and drivers.

if lucky only putting cable back fixes it.
do you know how to lock and unlock laptop ribbon connector locks and not damage them.
this is a first things first set of skills.
ask. (there are 3 kinds, what you have id have to look)
each kind uses different skills to work them. and not wreck them.

Compaq Presario... | 108 views | 0 helpful votes

NO PC stated, just compaq,, 1984 compaq,? first one.
must we guess what you have?
NO OS stated, we guess that too? wow.
windows ? if yes, what windows, we cant guess that ever. (even linux uses and OS/2 on some)

no statement of what you are doing? PC do lots of things. endless.
my guess Ethernet cable fails>? using CAT5/6 cable?

if the modem is dead on 2 PC, wired
call the ISP it is their issue.
if the 1 pc ONLY fails on that modem
then that PC drivers are bad. if wired
if wifi 20 more things, complex it is ,ask if doing that.

Compaq Computers... | 246 views | 0 helpful votes

NO PC stated ,wow now that is hard , no? 1984 to 2018 PCs (1000s of types made !)
compaq to 2013 ends.
NO OS stated, windows, yes?, what windows, XP, vista ,what?

seems to me, the BIOS barfs on your Processor.
my guess is you changed mother boards, and used the wrong processor.? (or the reverse)
learn that the BIOS must be able to recognize the processor in the POST process.
(for sure lots of causes other)
does it do that (laptop) with the main battery the huge heavy battery , that is now shorted and dead.?
you post and not even say desk or laptop. wow.
is it a Proliant Server? or Z600 with 2 non matching Xenon processors, gee, must I guess it all?>
why not just post your service tag data.
and say what OS is running, even windows servers.

the HP manuals on your PC clearly state what processor on that exact model and P/N on the service tag.
clear as day.
as will the hp parts surfer.
varies by country too.
see this, if you answer all the questions there, bingo what yours had and what processor options are supported.
on newer PC HP 10 years or less the BIOS update page also lists added processors under"details" there you go.

Compaq Computers... | 65 views | 0 helpful votes

i have no idea these words? elaborate please .
tell what you do right and it does, wrong (a story)

my wild guess is the touch pad is failing
and no usb mouse attached,(hand held mouse)
what OS is this , XP?

The mouse pad can be bad.
so can the mouse pad driver be corrupted , missing or wrong one installed.

start by telling the helper what OS,
click the (CP) control panel, click system'
the OS you run is presented to you there, in words.
windows what.
then CP (again, then click device manager)
under "Mice and other pointing devices."
see the mouse pad there, the driver there must not be
or red or yellow marks ore UNKNOWN.

there are more tests and actions, but I stop here,
or get it repaired in a PC repair shop. (captain obvious sorry)

Compaq Computers... | 25 views | 0 helpful votes

you are on the wrong forum for sure.
asking folks to do you homework>
wow, not good that.

try learning to use google.

i can code C+ but your question is over the top.

Compaq Computers... | 268 views | 0 helpful votes

had this laptop myself, you need to remove all the drivers for the wifi and delete the files and folders.. download the driver from HP, reboot the laptop and it should install the windows driver. reboot again and then install the HP driver, when you have done this and its working make sure windows cannot update drivers ever again as windows installs wrong drivers. windows 10 is prone to installing the updated drivers that are not compatible with this model. like mouse pad. max version is 18. windows puts 19 on and it makes over driver incompatible.

Compaq Computers... | 52 views | 0 helpful votes

Send the computer back for service if its in Warranty.
Try to use the Audio out on the side of the computer. Plug any external speaker into the port. If the sound you hear is the same as what comes rom the speakers then the sound module on the motherboard is defective. If the sound is normal, then the problem is in the wiring to the internal speakers.

Compaq Presario... | 77 views | 0 helpful votes

Compaq Presario Modem/NIC Combo (212786001)

we have no idea at all what you are running there at all
NO PC stated
NO OS stated (xp,vista/w7/8/10, why?)
An AT%T what? what modem exactly so they did not set it up for you ? no way they would not do that after all its' their modem and you run it from them as a service.

does your unstated PC use Ethernet cable Cat5/6 to the At&T modem or router? that is the fast way to get internet
fastest, most easy, and just plugs in.
your post lacks all key facts,

Compaq Presario... | 120 views | 0 helpful votes

yet another old IPAQ, PDA.
why not ask HP
warning most have not seen one in 10 years, and forgot.

why own any legacy device like this, retired.
why not upgrade.?
nobody uses this thing> parts are not found. support zero.
value is like $1 at a garage sale.

did you ask the maker of micromedex if they even support this app
or if it even works in that mode, that be like first.

Compaq iPAQ... | 51 views | 0 helpful votes

dead PC,
this failure and all cures have been posted here 100s of times.
even 1000 times. ive done 1500 now dead pc's.
  • what are you asking, ?
  • how to fix it
  • or what's wrong from morbid curiosity?
  • or want to learn how to fix PC,
  • or who can (any PC repair shop on earth, yes)
  • id bet no store fixes 11 year old PC, store? repair shops sure.
the book on your PC shows it is 11 years old now. 2007 made.
most PC this old are dead an parked in an attic, most.
you skipped step 1. and is...
remove the dead shorted many battery, non last 11 years.
not one. (if im wrong we do a guinness world records interview)
so remove it and see if it works now.
step 2 is the screen, all old PCs 2010 or older (most then all)
have CCFL lamps that all died long ago
and the screen is black forever now, all do that every one.
if USED every day.
if the screen never shows text ever ?
then the back lamp is dead. (battery out, AC pack connected)
yes> black.>
then we do the flash light test next,
if you see data now, then the CCFL are dead.
99% tubes bad or 1% inverter that runs them dead.
in 2010 this ended with LED, your PC is NOT LED.

if the flash light test fails, NO DATA there.
then 2007 PC had the solderball from H3LL failures.
GPU grapics chip from Nvidia are bad.

the kiss of ***** here the fix is 10x more that the PC is worth.
value dead is $5 this old.

and for sure a new coin cell most are dead at 11 years.
and can cause all the above.
read page 44, its childs play fix.

Compaq Computers... | 350 views | 0 helpful votes

Check Lamington road Mumbai

Compaq Presario... | 123 views | 0 helpful votes

Phone Crucial support. They know everything about memory. Sometimes there are three slots and only two can be used. Sometimes if the memory is over a certain size you can only use one RAM module, or if you use two modules, they have to be identical and matched. The other consideration is type and speed.

So I go here
RAM Memory Upgrade for Compaq Presario 2190US Laptops

you have two slots and the max is 1GB. You need two of these at 9 bucks each.

512MB Module512MB-DDR266, 266MHz, PC2100, 200p SODIMM, 2.5v, Sync 552ms-156 What have you got? Click COMMENT under my post.

more info here

Compaq Presario 2190US PC Notebook ram upgrade Google Search

Compaq Presario... | 113 views | 0 helpful votes

are you at home or Starbuck? location matters.
so, the compaq must be setup correctly.
your router broadcasts the SSID name seen by you on all devices, see that on the Compaq (y/n)
then you must pick wep. or wpa, or wpa2 encyption mode.
as set in your router, we cant see inside you router only you can
then set the passphrase to what you router wants.
is this XP, windows
does the wifi chip look ok in device manager?
Is XP infected.? with malware as all are now.

never post about computers lacking what operating system you have, or answers will be wrong, even all answers.

Compaq Presario... | 78 views | 0 helpful votes

LCD is toasted
or its cable bad,.rare.

Compaq Presario... | 116 views | 0 helpful votes

fixing a relic 15 year old square laptop, to want ends?
its junk now, the CCFL inside are useless now, too old
never spend cash on any monitor or PC with CCFL back lamps.
"came ,up"
who came up.?
bios or windows. told you this?

sure wrong RAM.

finding ram to fit and work in any relic PC now is not easy
they dont make them now so are new old stock.
why not buy a PC 2010 or newer, used.
work that a end.
with hope and a real future.. yours is no good. sorry. but that is a fact, never throw good money after bad.

Compaq Presario... | 68 views | 0 helpful votes

This depends what version of Windows you are running, if you are running an older version, say Windows Vista, there is a known bug with the ISATAP Adapter, essentially it is an IPv6 protocol, and is not needed. It should have no impact on the operation of your wireless card and is completely fine to use with the yield sign. It may have been there for some time before you noticed. The connectivity is most likely unrelated. If there is a yield sign next to you wireless adapter i would recommend re-installing the driver. You will need to search google for the driver and re-install. Sometimes manufacturers will have drivers on their websites and you simply enter you laptop model and year and select wireless card. Other times you will have to do a thorough search on google. Dont download any program that will search your computer for missing drivers, they are a scam. Try searching for your model number and Compaq. If you cant find exact model number of your laptop, a general Compaq driver may work.

Can you still connect through wired ethernet cable? What do you mean by wont connect? Do you mean connect but there is no internet? Or you can see the wireless network but not connect? or you cant see any wireless networks at all? I have also run into issues where the saved network configuration is corrupted, and trying to join a network and enter the password is futile, even though I have previously joined and it is a trusted network. In this instance, I deleted all network settings and all saved configurations associated with this network and joined again from scratch, which rejoined first time.

Compaq Computers... | 107 views | 0 helpful votes

no PC model stated, at all... wow, 1984 to 2014 compaqs.
the PSU is bad if the jumper wire test fails
easy as eating apple pie, do that test. the voltages in the PC case are safe, 12vdc max. (no do not short out power rails.

NO the ATX spec is published in the wiki
the first compaq are 20 pin then later 24
so ill do 24 , just wild guessing what PC model you have.
why must we beg model PCs'
its like saying a Have a FORD car, what ford what engine, see?

jump 16 to 17 (17 is ground)
do not hot wire power OK (good) pin 8,
do not or blow up a good PSU.
never hot wire anything you do not understand
in this case the pin 16 has pull up resistor 5k, in all PSU made on earth. and you ground it (0v logic) to tune power on.
see the schematic in this page, do not blow up IC2.
or you will be sorry, I promise.

this works on all PSU made ATX spec. per wiki.

Compaq... | 155 views | 0 helpful votes

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