Help HP Z440 workstation

Fabbrone · 05-20-2019, 09:24 AM

Good morning, the pc only turns on the front led and the fans but not from acoustic signals or other. I have already tried to change the video card to the RAM and the CPU but nothing. Could it be the bios?

**Agent24** · 05-20-2019, 03:11 PM

I assume it worked before?

Have you tried a known good power supply?

Fabbrone · 05-21-2019, 02:37 AM

yes I have already tried another power supply but nothing

**Agent24** · 05-21-2019, 05:08 AM

Check BIOS battery is not low, if it is, replace the battery and reset BIOS settings with hardware button or jumper?

Fabbrone · 05-21-2019, 10:50 AM

The battery is ok
what do you mean to reset the BIOS settings with the hardware button or the jumper?
I moved the jumper for the reset but nothing

Fabbrone · 05-23-2019, 04:34 AM

someone has available source of bios ?

**Agent24** · 05-23-2019, 06:11 AM

Yes, that's what I mean. Move the BIOS reset jumper. Make sure you move it back afterwards.

Can you get the BIOS from HP? Typically they don't go bad by themselves though...

**SMDFlea** · 05-23-2019, 07:57 AM

There`s only a bios update on hp .What is the serial number,to get to the correct support page, and can you post your bios backup .

Fabbrone · 05-23-2019, 09:44 AM

is this the first time I disassembled this machine, to remove the main one you also need to remove the screws under the heat sink?

**SMDFlea** · 05-23-2019, 10:10 AM

Service manual http://h10032.www1.hp.com/ctg/Manual/c04823811 .Did you try a bios recovery disk.

Fabbrone · 05-23-2019, 10:25 AM

Ok removed, here is the original source

Fabbrone · 05-23-2019, 10:26 AM

no I have not tried with recovery disk

**SMDFlea** · 05-23-2019, 11:27 AM

Two different bios to try,the bios backup had errors decompiling with Flash Image Toolkit, meaning the ME was corrupt.

**SMDFlea** · 05-24-2019, 06:06 PM

The 2 bios posted above aren`t working. Here`s 2 new ones to try.

Fabbrone · 05-25-2019, 10:11 AM

even with this version fans and LEDs light up but nothing is displayed

**dj_ricoh** · 07-11-2019, 06:56 AM

My hp z400 beeps if it doesn't post.
If the power button it's blue the it passes the cpu ram then GPU
If there is no display with blue power button the it's GPU.

That series it's heretic with beep sounds if something it's wrong.

**ant3202** · 07-20-2019, 04:20 AM

Quote:

Originally Posted by Fabbrone

yes I have already tried another power supply but nothing

just checking if you had tried with the same power supply?
Not sure if the power supply is standard...
the last time I had worked with Z400 ... PSU pin layout is a little different.

05-20-2019, 09:24 AM	#1
Fabbrone Member Join Date: Jun 2015 City & State: turin My Country: italy I'm a: Knowledge Seeker Posts: 85	Help HP Z440 workstation Good morning, the pc only turns on the front led and the fans but not from acoustic signals or other. I have already tried to change the video card to the RAM and the CPU but nothing. Could it be the bios?

05-20-2019, 03:11 PM	#2
Agent24 I see dead caps Join Date: Oct 2007 City & State: Hiding inside a plated-through hole My Country: New Zealand Line Voltage: 230VAC 50Hz I'm a: Hobbyist Tech Posts: 4,630	Re: Help HP Z440 workstation I assume it worked before? Have you tried a known good power supply? __________________ "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous" -David VanHorn

05-21-2019, 02:37 AM	#3
Fabbrone Member Join Date: Jun 2015 City & State: turin My Country: italy I'm a: Knowledge Seeker Posts: 85	Re: Help HP Z440 workstation yes I have already tried another power supply but nothing

05-21-2019, 05:08 AM	#4
Agent24 I see dead caps Join Date: Oct 2007 City & State: Hiding inside a plated-through hole My Country: New Zealand Line Voltage: 230VAC 50Hz I'm a: Hobbyist Tech Posts: 4,630	Re: Help HP Z440 workstation Check BIOS battery is not low, if it is, replace the battery and reset BIOS settings with hardware button or jumper?

05-21-2019, 10:50 AM	#5
Fabbrone Member Join Date: Jun 2015 City & State: turin My Country: italy I'm a: Knowledge Seeker Posts: 85	Re: Help HP Z440 workstation The battery is ok what do you mean to reset the BIOS settings with the hardware button or the jumper? I moved the jumper for the reset but nothing

05-23-2019, 04:34 AM	#6
Fabbrone Member Join Date: Jun 2015 City & State: turin My Country: italy I'm a: Knowledge Seeker Posts: 85	Re: Help HP Z440 workstation someone has available source of bios ?

05-23-2019, 06:11 AM	#7
Agent24 I see dead caps Join Date: Oct 2007 City & State: Hiding inside a plated-through hole My Country: New Zealand Line Voltage: 230VAC 50Hz I'm a: Hobbyist Tech Posts: 4,630	Re: Help HP Z440 workstation Yes, that's what I mean. Move the BIOS reset jumper. Make sure you move it back afterwards. Can you get the BIOS from HP? Typically they don't go bad by themselves though...

05-23-2019, 07:57 AM	#8
SMDFlea Moderator Join Date: Jan 2018 City & State: York My Country: UK I'm a: Knowledge Seeker Posts: 3,034	Re: Help HP Z440 workstation There`s only a bios update on hp .What is the serial number,to get to the correct support page, and can you post your bios backup .

05-23-2019, 09:44 AM	#9
Fabbrone Member Join Date: Jun 2015 City & State: turin My Country: italy I'm a: Knowledge Seeker Posts: 85	Re: Help HP Z440 workstation is this the first time I disassembled this machine, to remove the main one you also need to remove the screws under the heat sink?

05-23-2019, 10:10 AM	#10
SMDFlea Moderator Join Date: Jan 2018 City & State: York My Country: UK I'm a: Knowledge Seeker Posts: 3,034	Re: Help HP Z440 workstation Service manual http://h10032.www1.hp.com/ctg/Manual/c04823811 .Did you try a bios recovery disk.

05-23-2019, 10:26 AM	#12
Fabbrone Member Join Date: Jun 2015 City & State: turin My Country: italy I'm a: Knowledge Seeker Posts: 85	Re: Help HP Z440 workstation no I have not tried with recovery disk

05-25-2019, 10:11 AM	#15
Fabbrone Member Join Date: Jun 2015 City & State: turin My Country: italy I'm a: Knowledge Seeker Posts: 85	Re: Help HP Z440 workstation even with this version fans and LEDs light up but nothing is displayed

07-11-2019, 06:56 AM	#16
dj_ricoh Badcaps Veteran Join Date: Jan 2013 City & State: London My Country: uk I'm a: Knowledge Seeker Posts: 1,997	Re: Help HP Z440 workstation My hp z400 beeps if it doesn't post. If the power button it's blue the it passes the cpu ram then GPU If there is no display with blue power button the it's GPU. That series it's heretic with beep sounds if something it's wrong. __________________ Just cook it! It's already broken.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode