HP/Compaq :: HP Ze4904us Wont Boot, But Lights Are On
Apr 6, 2009
It's an HP ze 4904US running windows XP. Worked fine, then went to start one day and screen wouldn't come on. Having had this problem with my ze1000 series, I thought it could be screen bulb or inverter. But it isn't.
When I turn it on, I see the blue light all the way to the left on as well as the orange light by the battery symbol to the right.
I don't hear beeps.
I do hear the cd rom spin if a cd is loaded.
I do hear the fan for just a second occasionally. Not every time.
The screen is black and no faint xp logo or anything.
I feel like maybe it's not booting all the way.
If I press caps lock or num lock, the accent light doesnt come one. (maybe bad keyboard)
Here's what I've tested so far based on searches on this forum:
used reset button
removed battery and ac adapter and held power button 1 min.
One by one removed hardware to narrow problem
Re-seated everything and made sure connections were good
tried 2 other known working ac adapters.
hooked up to my PC monitor and still nothing. Monitor doesn't noticed anything attached. (why I believe it's not screen and just isnt booting.)
If it ends up being the motherboard, I do have a motherboard that works in my ze1000 laptop, but I don't know if it is compatible.
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Nov 16, 2014
Basically I have tried these:
Discharge laptop: No result
Use different wall outlet charger: No result
Swap RAM: No result
Use PSA: No lights and display
Use battery status: No lights even not plugged in!
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Mar 10, 2010
The laptop wouldn't boot. I took the keyboard out to see if I could swab-dry any water, but couldn't really find any in there.
I lightly sprayed around with compressed air and left the laptop open with the keyboard out to try and let it dry out for a few hours, but no dice...still wouldn't boot.
I thought maybe via cell phone logic, it might work again after 24 hours or so. It's been almost three days now and it still won't boot, so I'm pretty sure I fried something. Here's the error code it's giving me .....
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Dec 10, 2014
I have an Acer Aspire V3-772g, a relatively new laptop (8 months old), which randomly decided to stop booting.
Windows 8.1Core i7 2.2ghznVidia GTX 760m8gig's of ram (2x4gb)7200 RPM SATA
Was playing a game just fine. Shut down as normal, went to work, came home 8 hours later, attempted to boot - nothing.
Exact problem: Hit power button, power button comes on. Light next to the lightbulb (power light?) Comes on, stays solid. Charging stays solid orange/blue.
HDD light? Flickers. Screen flickers a dark grey color that may be the very initial part of a startup. No acer logo.The screen and HDD light flicker in synchronisation, at the same exact time. You can hear the fans fire up, and the HDD spin up. Screen just flickers about once per second (it's very faint.)
--Heres what I've tried---
-Removing power cord/battery, holding button for 60 seconds 3 times, plugging back in and powering up.
- Almost every varation of that, I have attempted.
-Inserting a new harddrive. Same result.
-Plugging in an external monitor. (Tried VGA and HDMI)
- Power does not transfer to external monitors. Screen still flickers on laptop, no change in behavior.
-Removed 1 stick of RAM - No **BUT** behavior changes slightly. Flickering of screen and HD light reduced to about once every 45 seconds rather than once every second.
-Removed both sticks of RAM - no flickering, no HDD light flickering. Pure black screen.
-Rotated the sticks of RAM - No change.
Also interestingly, with everything normal, if I hold Fn+Esc, the computer will do a new startup process (Screen still black), then after about 20 seconds goes into the normal screen flickering/HDD indicator flickering. Different behavior, slightly.
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Oct 3, 2012
I recently suffered a complete failure of my xps m1530 which was purchased new from Dell in 2008. The blue lights would blink then go out and no apparent boot sequence or illumination on the screen.
The suggestions led to a diagnostic determination that the problem was likely a faulty Nvidia chip which, of course, is integrated into the motherboard. The solution was either to replace the MB ($165) or to watch a Youtube video regarding a method whereby a small torch or even a hair dryer might be used to reestablish the pin connections. I watched the video, used the torch as suggested, and my computer now works as it should.
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Mar 29, 2010
I have my friend's dv1000 witch took a dump on him the other day. The lights turn on, but it wont post or do anything?
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Nov 11, 2009
I have a HP DV6000 Laptop. Im aware of the problems these models have. But this one I have not yet heard of. When I attempt to power it on, the lights turn on for 2 seconds, and it shuts right off. Its not like the Video card issue everyone speaks of. I have extensive technical background, and I have tried taking everything out, and trying each part one by one. I have tried swapping the power button ribbons, I have tried removing the bios battery. I guess im wondering if anyone else has ever been able to figure out whats going wrong with this setup? copuld it be a lack of contact between heat sync and CPU? please give me whatever input you can. I would like to not have to spring for a new Mobo. I can solder, and I am thinking of trying to heat the soldering points with a heat gun maybe. I dont know if thats the problem tho. and also, when the AC adaptor is plugged in, the blue LED surrounding it is on.
I also tried all this (of course)
1. Remove battery.
2. Remove AC power.
3. Remove and reseat your RAM modules.
4. Replace your RAM modules.
5. Hold down your power button for 1 minute.
6. Replace your AC power (not battery) and turn on
remove the small bios cmos battery for 15min and then put it back in
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Dec 11, 2014
I have a Compaq CQ61-415SA and it seems to have stopped working. I turned it on and it was working fine, then I left it whilst doing something else for a couple of hours, it wasn't attached to the mains supply and when I went to use it the following happened.
When you turn it on the DVD drive tries to access and a fan comes on, that's as far as it goes. The power light stays on, the power lead light comes on and stays on, the two blinking lights blink once then pause then repeat. I have read that this is probably a hardware issue, is that right and what is the next step? I have disconnected the battery and held down the power switch for 20 seconds, but nothing happens.
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Apr 21, 2014
I have a compaq presario CQ61-420US with similar problems below, except I have a black screen, fan turns blinking lights are the same (num lock and cap lock) but they are flashing continuously every second or 2. I have tried the hard reset with the ram fix, connecting an external monitor, changing the battery, and the power adapter to no avail. I also used compressed air on the vents just in case was stuffed with dust since it will overheat and may cause problems, but nothing.
One option I can think of is purchasing a new MotherBoard, but I'm trying anything else before that.
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Jul 22, 2014
I have a problem with my Compaq Presario CQ61-325ED. It won't boot. What I see is a black/blank screen, with the numlock and capslock lights blinking twice every couple of seconds.
According to the blink codes, it seems the BIOS has been corrupted [URL] .... Sadly, no adequate solution is given on that page.Win + B or Fn + B at startup does nothing, pressing all the arrow keys gives me a continuous blinking pattern (edit: I can't seem to replicate this anymore...). I have also tried creating a bootable USB-stick with a BIOS update, but I don't think I have done it correctly, for it never gets activated (the light on the USB never turns on).
Also, removing/resetting the RAMs or just one of the RAMs does not work. Neither does removing/resetting the CMOS battery. How to successfully create a bootable USB-stick with BIOS update for CQ61-325ED?
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Jan 12, 2009
boot cd hiren`s boot 9.7 form cd. i can not boot cd in the laptop hp dv4.
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Jun 20, 2009
due to virus infections in my hdx 18 i hav formated my c drive.while the recovery drive is intack as it is in the d drive.i was didnt create my recovery discs as well.now during boot time when i press f11.it doesnt boot to the recovery drive in the HDD.it says no partition table found, i think i may hav deleted the mbr during format
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Jan 29, 2015
I'm trying to boot from legacy boot from my new dell 7000 series. however when i change from uefi to legacy i have no boot option. the whole boot list is empty.
i have called dell and the support desk told me dell has no support for legacy :S that means no windows 7 on my dell or any other os that uses non uefi...... i think the bios is corrupt is the whole list is simply missing.
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Jul 21, 2009
On the front of teh laptop there are 4 icons:
Disc Access
Bluetooth
WiFi
What's the 4th one?
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Apr 26, 2009
Since DELL replacing my mobo I have had no wifi / hdd lights on my XPS13.
I am wondering if he didn't put a wire back or some drivers need to be reinstalled?
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Nov 10, 2008
turning on then turning off? When I turn it on, the LED lights come on for seconds and then go off. I replaced the motherboard and the processor and its still the same problem. I also took out the RAM and had the same problem?
What else could be causing it? The graphics card?
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Feb 3, 2009
I recently did a manula reformat of my M1730 and everything works fne but having a problem with the light FX.
I set them to sapphire blue using quick tune but when ever i restart the machine or fire it up for the first time the light are different. The left speaker is orange and the right one and touch pad are crimson red.
Then has soon has it boots into windows they will go back to my setting of sapphire blue.
Do they have to be set in the bios or somewhere else in order to always have them the colour i picked even when restarting?
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Jan 8, 2008
I replaced my Inspiron 9400 motherboard with M1710 XPS motherboard.The palmrest,lcd cover,hinge cover,front speakers,is M1710 parts.The only parts not XPS M1710 is the standard non led cpu and video fans which I borrowed from my Inspiron 9400.
The cpu and the video fan is borrowed from my I9400.Non LED.Could this be the cause?
My M1710 backcover,M1710 touchpad,and the front speakers do not light on.Eevn when the system is booting up in bios.
I already checked all connections and have the above all above
enabled in bios.
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Nov 2, 2008
I suffer from migraine that is triggered by changes in luminosity and blinking lights.
I am now reading the review by justGoIt of the M1730 on the Dell website: it talks about "bling bling lights". (This link points to the product, then you have to click on reviews.)
Does anybody know what lights are they?
can they be turned off?
are they bright?
where are they positioned?
or can they just be covered with a sticker?
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Dec 5, 2007
anyone at all been able to light up the cover lights (just one of the colors even) for those who have done the 9400/E1705 to M1710 mods? I would really like to know how this can be done if there are some theories out there. Please refrain from saying how much you hate the lights or asking why I would care to do this :
Some methods I thought about trying:
USB port: 5V ok, will that work with the cover LEDs?
Fan port: I have heard this one might not work but can anyone confirm?
(I am talking about cutting off the connector that would originally go into the M1710 mobo and trying various things with the wires that happen to be color coded, 2 for each color of LED apparently.)
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May 5, 2009
i recently reinstalled windows on my Dell XPS M1730 but i have some problems. For some reason the lights on the lid of the case (the ones on top lol) dont come on anymore.
To get them on i have to open dell quickset and turn them off and then on again, then they will stay on, but after shutting down and booting back up they are still off. Anyone know what the problem could be?
Also another issue im having is that when i turn on the laptop my left speaker light is orange. I changed it in quickset to be blue but still during booting its orange and then once the laptop is fully booted it turns to blue. Anyone have any idea how to fix this?
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Aug 17, 2009
I have had Sony Vaio VGN-N19VP/B for over a year now and this morning I went to open the lid and turn the laptop on and there were no lights or any response.
I took out the battery and put it back in to see if the connectors were loose but the problem remains.
I checked to see if the AC cable was working, the light was off and then I checked it with my multimeter output was 19.61v
Under the motherboard where powewr cable from AC jack is connected I have 3.98V.
On the battery output from moterboard on the 3 pin is 2.58V
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Feb 22, 2009
i've been playing far cry 2 for 4 hours. i shut down the game, my temp is 79-80 degrees celcius which is perfectly normal when gaming on the macbook pro. i don't know why i wanted to look through the vents. i turn my laptop and look through. i saw this yellow light. its approximately under the R and F keys on the keyboard. i turn my laptop and look closely on the keyboard and it's illuminated white. no sign of the yellow light. Thus, to resume, i saw it only when looking through the vents. does anybody know what is this light? what is causing it to light up? i smelled closely but no burning smell. in fact, i cant smell any weird odour. is it harmful for my macbook pro?
[url]
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Jan 6, 2015
I bought my daughter an ACER ASPIRE E11 for Christmas. Before New Year's day I was on line with Tech Support because it was not powering up (no lights, nothing). Support had me press and hold the reset button on the bottom, and it worked. He said something about static build up , which made no sense to me. But he said it shouldn't be a problem again...but last night it did it again. I pressed the reset and that resolved it.
My questions are---"Is this going to be a continual problem? Is it something that I should send back to Acer to get fixed? Or is it something in the way we are handling it??"
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May 5, 2010
Is this the backlight? i hot glued the connector and wires in the socket into the inverter....?
I have replaced the inverter AND the flex cable (yes, the part numbers are right)
I have to shake or pressure point the left-middle of the screen for it to stop otherwise it stays unreadable...
when i hook it up to an external monitor...
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Dec 13, 2009
I know it's kinda dumb but it's annoyingly bright when I've got the computer on at night and it's busy converting video or doing other work. It's also less power used.
It can't be done through software but has anyone physically unplugged them? I've not opened up the case yet so I don't know how practical that would be, thought I'd ask around first.
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Mar 9, 2010
I feel like the keyboard on my SXPS13 was MUCH brighter than the keyboard on my SXPS16.
I also had an icon pop up on the RHS of the screen that told me the keyboard light level (it would pop up when changing intensity 'off', '1', and '2').
I don't have an icon pop up on the 16, and the keyboard looks much dimmer overall.
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Mar 6, 2013
my dell inspiron 1420 has blinking led lights whenever plugged in it wont boot.
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Jun 18, 2014
I'm unable to boot my Inspiron 15R SE laptop. There are no response from the laptop when I pressed the power button. No LED lights, no disk noise ! The only thing I noticed is the power cable light goes out immediately when plugged into the laptop.
I have tried taking the battery and power cable out , hold the power button for 30 seconds , place battery and power cable back then tried rebooting but laptop still won't boot...
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Dec 29, 2014
I have what seems to be a common problem with my laptop .. laptop turned on and went off . No charge lights and wont turn on. When I plug the charger in the green charging light goes out !!!
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