Why my laptop restart itself and display cmos reset (502) continuousl?

Question 1

1 crwdns2930801:0crwdne2930801:0

HP EliteBook 840 G2 crwdns2933313:01crwdne2933313:0

Darren Lucas 175

crwdns2931217:0crwdne2931217:0

Mud 20, 2025

answered Mud 20, 2025 crwdns2933505:0crwdne2933505:0 Darren Lucas

Question 2

0 crwdns2873741:0crwdne2873741:0

Why is my audio on screen display normal but no sound in my laptop

crwdns2934197:0crwdne2934197:0 HP EliteBook 840 G5 crwdns2933315:00crwdne2933315:0

Sixtus

crwdns2931731:0crwdne2931731:0

Mud 20, 2025

asked Mud 20, 2025 crwdns2933505:0crwdne2933505:0 Sixtus

Question 3

1 crwdns2930801:0crwdne2930801:0

Windows 11 software upgrade. From 10 to 11

HP EliteBook 840 G3 crwdns2933313:01crwdne2933313:0

Ted 319

crwdns2931217:0crwdne2931217:0

Mud 8, 2025

answered Mud 8, 2025 crwdns2933505:0crwdne2933505:0 Ted

Question 4

2 crwdns2873741:0crwdne2873741:0

My display is glitching

crwdns2934195:0crwdne2934195:0 HP EliteBook 840 G3 crwdns2933315:02crwdne2933315:0

Arzaan Ali 11

crwdns2942989:0crwdne2942989:0

Mud 18, 2025

answer accepted Mud 18, 2025 crwdns2933505:0crwdne2933505:0 Arzaan Ali

Question 5

0 crwdns2873741:0crwdne2873741:0

Why won't my battery charge?

crwdns2934197:0crwdne2934197:0 HP EliteBook 840 G4 crwdns2933315:00crwdne2933315:0

Augustine 16,7crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Dzi 15, 2025

commented Dzi 15, 2025 crwdns2933505:0crwdne2933505:0 Augustine

Question 6

0 crwdns2873741:0crwdne2873741:0

Where is the Audio IC?

crwdns2934197:0crwdne2934197:0 HP EliteBook 840 G8 crwdns2933315:00crwdne2933315:0

Augustine 16,7crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Dzi 14, 2025

commented Dzi 14, 2025 crwdns2933505:0crwdne2933505:0 Augustine

Question 7

0 crwdns2873741:0crwdne2873741:0

Laptop turning on but not working it crashes

crwdns2934197:0crwdne2934197:0 HP EliteBook 840 G3 crwdns2933315:00crwdne2933315:0

Alisha C 38,7crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Kul 30, 2025

commented Kul 30, 2025 crwdns2933505:0crwdne2933505:0 Alisha C

Question 8

1 crwdns2930801:0crwdne2930801:0

Laptop hanging frequently ands stops working

HP EliteBook 840 G4 crwdns2933313:01crwdne2933313:0

Eng.Hussam

crwdns2931217:0crwdne2931217:0

Kul 20, 2025

answered Kul 20, 2025 crwdns2933505:0crwdne2933505:0 Eng.Hussam

Question 9

1 crwdns2930801:0crwdne2930801:0

How do you replace the keyboard assembly

HP EliteBook 845 G7 crwdns2933313:01crwdne2933313:0

Nick 94,5crwdns2936485:0crwdne2936485:0

crwdns2931737:0crwdne2931737:0

Kul 16, 2025

answer edited Kul 16, 2025 crwdns2933505:0crwdne2933505:0 Nick

Question 10

1 crwdns2930801:0crwdne2930801:0

Why is my pc touch pad not working

HP EliteBook 840 G4 crwdns2933313:01crwdne2933313:0

Hast 206

crwdns2931217:0crwdne2931217:0

Kul 13, 2025

answered Kul 13, 2025 crwdns2933505:0crwdne2933505:0 Hast

Question 11

1 crwdns2930801:0crwdne2930801:0

My 8 I k , keys works intermittently

HP EliteBook 840 G1 crwdns2933313:01crwdne2933313:0

oldturkey03 819,9crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Yan 23, 2025

answered Yan 23, 2025 crwdns2933505:0crwdne2933505:0 oldturkey03

Question 12

1 crwdns2930801:0crwdne2930801:0

My pc stacked on automatic repair

crwdns2934195:0crwdne2934195:0 HP EliteBook 840 G3 crwdns2933313:01crwdne2933313:0

Sudeys Mecca 11

crwdns2942989:0crwdne2942989:0

Sun 23, 2025

answer accepted Sun 23, 2025 crwdns2933505:0crwdne2933505:0 Sudeys Mecca

Question 13

1 crwdns2930801:0crwdne2930801:0

Why wwan module display post error while switch on the laptop

HP EliteBook 840 G5 crwdns2933313:01crwdne2933313:0

jayeff 503,7crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Sun 20, 2025

commented Sun 20, 2025 crwdns2933505:0crwdne2933505:0 jayeff

Question 14

1 crwdns2930801:0crwdne2930801:0

My F1 and F2 are sayinh hot keys when I press them

HP EliteBook 840 G9 crwdns2933313:01crwdne2933313:0

oldturkey03 819,9crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Sun 18, 2025

answered Sun 18, 2025 crwdns2933505:0crwdne2933505:0 oldturkey03

Question 15

1 crwdns2930801:0crwdne2930801:0

Some keys on keyboard are not working

HP EliteBook 840 G3 crwdns2933313:01crwdne2933313:0

Carsten Frauenheim 144crwdns2936485:0crwdne2936485:0

crwdns2931735:0crwdne2931735:0

Dzi 24, 2025

crwdns2931431:0crwdne2931431:0 Dzi 24, 2025 crwdns2933505:0crwdne2933505:0 Carsten Frauenheim

Question 16

1 crwdns2930801:0crwdne2930801:0

I didn't turn it on

HP EliteBook 840 G4 crwdns2933313:01crwdne2933313:0

oldturkey03 819,9crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Sun 1, 2025

answered Sun 1, 2025 crwdns2933505:0crwdne2933505:0 oldturkey03

Question 17

0 crwdns2873741:0crwdne2873741:0

missing a connector to connect keyboard to laptop

crwdns2934197:0crwdne2934197:0 HP EliteBook 840 G5 crwdns2933315:00crwdne2933315:0

jayeff 503,7crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

N'w 29, 2024

commented N'w 29, 2024 crwdns2933505:0crwdne2933505:0 jayeff

Question 18

1 crwdns2930801:0crwdne2930801:0

How to install multiple os in m.2 and sata ssd

HP EliteBook 840 G3 crwdns2933313:01crwdne2933313:0

Dan 491,2crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

N'w 22, 2024

answered N'w 22, 2024 crwdns2933505:0crwdne2933505:0 Dan

Question 19

1 crwdns2930801:0crwdne2930801:0

How do I replace the fingerprint sensor

HP EliteBook 840 G5 crwdns2933313:01crwdne2933313:0

jayeff 503,7crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

N'w 19, 2024

answered N'w 19, 2024 crwdns2933505:0crwdne2933505:0 jayeff

Question 20

1 crwdns2930801:0crwdne2930801:0

Screen change for my hp

HP EliteBook 840 G6 crwdns2933313:01crwdne2933313:0

jayeff 503,7crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Huk 21, 2024

answered Huk 21, 2024 crwdns2933505:0crwdne2933505:0 jayeff

crwdns2944620:0HP EliteBook 840 Seriescrwdne2944620:0

HP EliteBook 840 Series crwdns2944634:0crwdne2944634:0