Question about HP Pavilion ze4145 Notebook

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Power turning off

My Hp Ze4145 Shuts off when the Operating System takes over the Cpu, I tried to run Linux off a cd and it did the same thing. I though it might be the RAM so I ran the system diagnostics on the laptop and it said all components were working fine. I'm really not sure why its doing this, any help would be greatly appreciated. Thanks.

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Feel the bottom of the laptop and see how hot it is getting. You might have a build up of hair and dust which blocks the cooling vents. this then causes overheating and the whole thing will just shut off. M

Posted on Aug 21, 2007


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Though it had been working fine until two days ago, my HP z800 won't boot past the "Starting Windows" animation; it simply turns off during its usual lengthy but verbose boot.

a HP z800 Desk top., full sized too.
what options? what does it have inside, now. ok 1 VGA card now. but is there a CD/DVD or BR disk drive there? options?
running SSD ! good.
its sold with a wide range for RAID drives, options.
and dual Quad-Core Intel Xeon Processor 5500 Series.

7 huge drive bays,
ever think to boot to a Linux CD? LIVE (no HDD need be there)
or windows 7,8,10 LIVE PE windows disk. (no HDD need be there)

my guess is if that fails (above simple test), then the PSU is bad.
it turns off for only these reasons.
1: the OS told it to.
2: the PSU saw errors and turned it self off.
the cause list is huge. (even bad MOBO, bad ram, or anything plugged into that MOBO that is shorted.

The PSU if it sees faults on any of its many power bus lines
it shuts off as after 1full second of trying to get it right (ATX spec)

why not just strip it down to only
mobo,PSU, no vga? , 1 mem stick.
see if fans run, powered on and it holds, there.
have as little plugged in to MOBO is possble
see if you get beep codes or , plug in 1 USB keyboard
and see if the LED there have flash codes.

ever seen a live boot CD? or stick
today all techs, have a boot stick, i have 4,
that why we can test everything out, with no HDD present.
see the POWER OF THAT?

I take a LIVE PE or linux, ISO file and burn a USB stick with RuFUS.
then boot to it, keep it in the tool box. and be empowered.

The PSU when working, some dont shuts off for 2 reasons
Power bus overloads, over/under voltage tests, or the soft power off
bit is TRIPPED.
if no HDD present there will no soft power off , possible. dig?
you push the power button and the PSU must stay up
do the fans go off too, ? you never mentioned FANS.
mine has 4 fans,
if the fans good off, now HDD then the PSU is bad or just UNHAPPY.

unhappy means, OVELOADED.

The more fancy the PSU, the more possible ways to overload
they do that to keep from blowing to kingdom come, $500 set of
processors. (a good thing)?

one more hint, the PSU has this one wire.
called PWR-OK if the PWR-oK goes false, the PSU
shuts off.
learn how this works and all else is easy.

Jun 18, 2017 | HP Computers & Internet

3 Answers

Computer booting problem

On some of these, there is an internal circuit breaker on the power supply. You can try unplugging it, hold the power button down for about 30 seconds, then plugging it back in. That can alow the power supply to reset.

May 08, 2013 | Computers & Internet

1 Answer

My cpu keeps overheating... I'm running Linux, which seems to run cooler with... My cpu would overheat, default motherboard shuts down... this problem only started occuring after i ran windows 7 64 bit......

It is obvious that you are "computer savvy", I like that in customer :-), what you described is common problem for laprops, you did not give me brand and model, therefore I cannot give more detailed info on the subject. MSI and Toshiba especially tend to create this problem.

Check your BIOS settings, these should be, especially in Linux, same as ACPI Linux settings, BIOS settings will override software settings.

Another very common problem is little known settings in Windows and LInux, called POWER MANAGEMENT SETTINGS.

Default settings for that in windows as well as in linux is DESKTOP. change that to PORTABLE/LAPTOP and this should solve majority of cooling problems on poratbles.

In Windows XP, Vista there are similar steps:
1. Select "Start" button
2. Control Panel
3. Power Options
4. Select "Portable/Laptop"

In Linux, I cannot help much, seem like every distribution have it's own power settings and typing all possible variables will create a book not an advice. Ubuntu have in it's last year edition bug which to save energy was throttling the fan, frying motherboard and processor on the way...

I ma advising always disable BlueTooth regardless of Operating system if not in use, can use up to 20% of power. It is a radio, it is broadcasting all the time.

Please read and this sites:

and if you feel very masochistic, try this one as well:

If problem is exacerbated by software, ususally start in hardware, this usually solves hardware problem:

1. Switch off computer
2. Disconnect all calbes
3. Remove battery, if removable, remove as well hdd and cd-rom
4. Turn laptop upside down
5. With little brush (toothbrush will do) clean all grill airvents from all possible debris.
6. Blow out gently all fluff and debris, if you can access fan blades, whipe them off as well.
7. In reverse order put laptop together
8. Connect power cord and switch laptop on on power, not on battery

On my laptops I am using as a back plate very thin perforated stainless plate, it is size of the bottom of the laptop, it is about 0.7mm thick and work as a passive cooler as a charm. Advantage is that I can take it to bed with me or lie on the carpet and it still provide adequate ventilation under the laptop as little legs from laptop rest on the top of it.

Aug 07, 2010 | Toshiba L305-S5902 2.0GHZ 15.4 I Laptops ...

2 Answers

HP Pavilion ZE2000 shuts down after HP Logo Screen

try putting a virus scanner boot disk or its because of mabey your laptop needs a new bios chip mabey?

Dec 31, 2009 | HP Pavilion ze2000 Notebook

2 Answers

Computer randomly shuts down in Safe Mode only

I can't think of any reason why you would want to run in safe mode except if the computer crashes your system. If you have a heat problem in safe mode it is shutting down to protect you CPU and GPU which are two things you won't want to replace. If you are over clocking you CPU that could cause this problem as the power management system is not active in Windows when you run safe mode. If your system is under warranty and you are concerned about this problem ask them to do a warranty repair. If it's not under warranty you can take it to Best buy and explain the problem and ask for a PC health check. Last I heard they were still doing those for free. At this point though I would avoid running the PC in Safe Mode

Sep 08, 2009 | Acer Aspire 7720 Notebook

2 Answers

I purchased an HP G-60-7913 last Dec 2008. After

ot may be a Faulty RAM problem try changing it but if it doesnt work then

i think u have got Conficker Work in ur system

the only thing is reset ur system to factory default state and all will be well and then always keep ur system updated with Antivirus product and Windows updates

for HP system all data will be lost pls proceed like this

Compaq/HP: When you first turn on the laptop and see the Compaq/HP logo screen, press the F11 key (you need to do this before the Compaq/HP logo disappears).

pls rate me well

Aug 11, 2009 | HP Computers & Internet

2 Answers

Come on, boots up, then shuts down 5 - 10 minutes later.

check your power options make sure you don't have hibernation enabled, its in the system control panel. try booting from a linux live cd like Ubuntu which you can download for free. If it runs fine under linux, its a windows problem, if it keeps shutting down its a hardware problem. Could be bad ram, or CPU overheating.

May 09, 2009 | Computers & Internet

2 Answers

Emachine 5220 keeps tuning its self off

I think the problem  may be that your operating system  may have gone corrupt

try  to enter the Safe mode  (if you can )
and see if you can  revert back to old settings and whether it helps or not
else   you would have to
  reinstall the whole operating system

Nov 09, 2008 | E-Machines eMachines Desktop PC

1 Answer

Laptop wont start

Dear customer
your system OS is please installed oprating system newly XP or VISTA.try this

Jul 25, 2008 | HP Pavilion ze4145 Notebook

5 Answers

HP Pavilion 752N shutting down issue

what kind of power supply is it? its it from hp or a 3 party? how many watts does it have just send me your computer specs to so i can check it out

Oct 10, 2007 | Computers & Internet

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