• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

need help diagnosing dead dell inspiron 1545 laptop

Joined
Mar 27, 2007
Messages
2,753 (0.44/day)
Location
louisiana
Processor Intel Core i7-4790 Haswell Quad-Core 3.6GHz LGA 1150 84W
Motherboard GIGABYTE GA-H87-D3H LGA 1150 Intel H87 HDMI
Cooling CPU - Cooler Master Hyper T4 / Case - cooler master 120mm rear case fan (Air cooling)
Memory 32GB (4 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
Video Card(s) GTX1060 6GB
Storage Samsung 512 GB 840 PRO SSD Main Drive and Samsung 512 GB 840 EVO SSD Backup Drive
Display(s) ASUS 23" LED Monitor
Case COOLER MASTER Centurion 5 (silver & black)
Audio Device(s) (onboard audio) Realtek ALC892
Power Supply CORSAIR SU-750TX 750W ATX12V / EPS12V
Software Windows 10 Home Premium 64bit Edition
this is my nieces computer so I don't have hands on regular daily use knowledge of it but .....

ok as of now the power supply is showing its putting out 19 volts so its working but the power light on the laptop itself is not coming on and the laptop is dead even after wiggling the plug to see if there might be a lose connection there.

about 6 months ago I had replaced the broken power jack on it with a brand new oem dell replacement one so its relatively new and shows no sign of any damage or having a loose or broken power jack plug but I suppose it could have went bad but im not sure if there is something in it that the power runs through first like a power converter that can go bad other then a broken plug .

what I was told about it leading up to this failure was, it would simply go off and the power light on the computer would be off but the power supply light was still on and putting out power.

she left it plugged in (it stays on a desk and never gets moved at all so it wasn't dropped, hit, or banged around, and she never unplugs it) and a few days later the computer power light was back on again and it worked for a few days before it did it again, now it seams to not come back on by itself anymore and is totally dead.

since the laptop power light isn't coming on, im thinking it rules out a dead cpu or anything else hardware related like that, and it must be that power jack circuit board went out, but im just guessing here and need your help and suggestions with this.

is my thinking correct and the first step is to try replacing the power jack circuit board?
 

Solaris17

Super Dainty Moderator
Staff member
Joined
Aug 16, 2005
Messages
25,894 (3.79/day)
Location
Alabama
System Name Rocinante
Processor I9 14900KS
Motherboard EVGA z690 Dark KINGPIN (modded BIOS)
Cooling EK-AIO Elite 360 D-RGB
Memory 64GB Gskill Trident Z5 DDR5 6000 @6400
Video Card(s) MSI SUPRIM Liquid X 4090
Storage 1x 500GB 980 Pro | 1x 1TB 980 Pro | 1x 8TB Corsair MP400
Display(s) Odyssey OLED G9 G95SC
Case Lian Li o11 Evo Dynamic White
Audio Device(s) Moondrop S8's on Schiit Hel 2e
Power Supply Bequiet! Power Pro 12 1500w
Mouse Lamzu Atlantis mini (White)
Keyboard Monsgeek M3 Lavender, Akko Crystal Blues
VR HMD Quest 3
Software Windows 11
Benchmark Scores I dont have time for that.
I have seen this a few times and unfortunately it can be the motherboard itself, unfortunately there is no clear cut way to tell. You might have to cat and mouse game and replace the jack again. Its 50/50. If it doesnt allow power to the system its the motherboard and no longer worth it for a 1545 to be honest. Atleast IMO.
 
Joined
Mar 27, 2007
Messages
2,753 (0.44/day)
Location
louisiana
Processor Intel Core i7-4790 Haswell Quad-Core 3.6GHz LGA 1150 84W
Motherboard GIGABYTE GA-H87-D3H LGA 1150 Intel H87 HDMI
Cooling CPU - Cooler Master Hyper T4 / Case - cooler master 120mm rear case fan (Air cooling)
Memory 32GB (4 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
Video Card(s) GTX1060 6GB
Storage Samsung 512 GB 840 PRO SSD Main Drive and Samsung 512 GB 840 EVO SSD Backup Drive
Display(s) ASUS 23" LED Monitor
Case COOLER MASTER Centurion 5 (silver & black)
Audio Device(s) (onboard audio) Realtek ALC892
Power Supply CORSAIR SU-750TX 750W ATX12V / EPS12V
Software Windows 10 Home Premium 64bit Edition
thanks, that what I was afraid of it might be

I just upgraded to max out the cpu and ram when I replaced the power jack so I guess that's money down the drain but what might you suggest I do seeing as I have a


Intel Core 2 Duo P9500 2.53GHz 6MB 1066MHZ Socket P Mobile CPU Processor SLB4E
4GB(2x2GB) 2Rx8 PC2-6400S-666, Laptop Memory
I "think" she has a half decent sata hdd of around 320gb (but maybe 250gb)

I can buy a replacement mb for it for only $25 on ebay which fits her "cheapest way to fix it" budget

or should I look at reusing these in upgrading another used cheap computer?

or just sell the parts and move on to something newer? she literally has no money so the absolute cheapest way is where we need to go with this
 
Last edited:
Joined
Sep 24, 2008
Messages
2,665 (0.47/day)
System Name Dire Wolf IV
Processor Intel Core i9 14900K
Motherboard Asus ROG STRIX Z790-I GAMING WIFI
Cooling Arctic Liquid Freezer II 280
Memory 2x24GB Corsair DDR5 6667
Video Card(s) NVIDIA RTX4080 FE
Storage AORUS Gen4 7300 1TB + Western Digital SN750 500GB
Display(s) Alienware AW3423DWF (QD-OLED, 3440x1440, 165hz)
Case Corsair Airflow 2000D
Power Supply Corsair SF1000L
Mouse Razer Deathadder Essential
Keyboard Chuangquan CQ84
Software Windows 11 Professional
I figure if you can try to replace the motherboard for 25$ it is likely worth the shot. That is pretty much replacing the whole business end of the machine. However, if that doesn't work, it is 25$ down the drain.
 
Joined
Jan 5, 2006
Messages
17,841 (2.67/day)
System Name AlderLake / Laptop
Processor Intel i7 12700K P-Cores @ 5Ghz / Intel i3 7100U
Motherboard Gigabyte Z690 Aorus Master / HP 83A3 (U3E1)
Cooling Noctua NH-U12A 2 fans + Thermal Grizzly Kryonaut Extreme + 5 case fans / Fan
Memory 32GB DDR5 Corsair Dominator Platinum RGB 6000MHz CL36 / 8GB DDR4 HyperX CL13
Video Card(s) MSI RTX 2070 Super Gaming X Trio / Intel HD620
Storage Samsung 980 Pro 1TB + 970 Evo 500GB + 850 Pro 512GB + 860 Evo 1TB x2 / Samsung 256GB M.2 SSD
Display(s) 23.8" Dell S2417DG 165Hz G-Sync 1440p / 14" 1080p IPS Glossy
Case Be quiet! Silent Base 600 - Window / HP Pavilion
Audio Device(s) Panasonic SA-PMX94 / Realtek onboard + B&O speaker system / Harman Kardon Go + Play / Logitech G533
Power Supply Seasonic Focus Plus Gold 750W / Powerbrick
Mouse Logitech MX Anywhere 2 Laser wireless / Logitech M330 wireless
Keyboard RAPOO E9270P Black 5GHz wireless / HP backlit
Software Windows 11 / Windows 10
Benchmark Scores Cinebench R23 (Single Core) 1936 @ stock Cinebench R23 (Multi Core) 23006 @ stock
On the internet in the specs I found it has Vista as OS, Vista is EOL next year....
 
Joined
Jan 11, 2005
Messages
1,491 (0.21/day)
Location
66 feet from the ground
System Name 2nd AMD puppy
Processor FX-8350 vishera
Motherboard Gigabyte GA-970A-UD3
Cooling Cooler Master Hyper TX2
Memory 16 Gb DDR3:8GB Kingston HyperX Beast + 8Gb G.Skill Sniper(by courtesy of tabascosauz &TPU)
Video Card(s) Sapphire RX 580 Nitro+;1450/2000 Mhz
Storage SSD :840 pro 128 Gb;Iridium pro 240Gb ; HDD 2xWD-1Tb
Display(s) Benq XL2730Z 144 Hz freesync
Case NZXT 820 PHANTOM
Audio Device(s) Audigy SE with Logitech Z-5500
Power Supply Riotoro Enigma G2 850W
Mouse Razer copperhead / Gamdias zeus (by courtesy of sneekypeet & TPU)
Keyboard MS Sidewinder x4
Software win10 64bit ltsc
Benchmark Scores irrelevant for me
you may try to connect directly power avoiding the jack with a few wires just to be sure is dead before another mb; check the soldering also as i had a laptop with similar issue and solder was cracked giving contact randomly...
 
Joined
Mar 27, 2007
Messages
2,753 (0.44/day)
Location
louisiana
Processor Intel Core i7-4790 Haswell Quad-Core 3.6GHz LGA 1150 84W
Motherboard GIGABYTE GA-H87-D3H LGA 1150 Intel H87 HDMI
Cooling CPU - Cooler Master Hyper T4 / Case - cooler master 120mm rear case fan (Air cooling)
Memory 32GB (4 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
Video Card(s) GTX1060 6GB
Storage Samsung 512 GB 840 PRO SSD Main Drive and Samsung 512 GB 840 EVO SSD Backup Drive
Display(s) ASUS 23" LED Monitor
Case COOLER MASTER Centurion 5 (silver & black)
Audio Device(s) (onboard audio) Realtek ALC892
Power Supply CORSAIR SU-750TX 750W ATX12V / EPS12V
Software Windows 10 Home Premium 64bit Edition
ok guys, well, she wants to order the mb and if that's not it, then just buy another computer so that's what im gonna do.

found one certified 100% working (for whatever thats worth lol) for $17.91 and free shipping

thanks for the help

also @ p4-630 I upgraded her to win 7 a long time ago
 
Joined
Mar 27, 2007
Messages
2,753 (0.44/day)
Location
louisiana
Processor Intel Core i7-4790 Haswell Quad-Core 3.6GHz LGA 1150 84W
Motherboard GIGABYTE GA-H87-D3H LGA 1150 Intel H87 HDMI
Cooling CPU - Cooler Master Hyper T4 / Case - cooler master 120mm rear case fan (Air cooling)
Memory 32GB (4 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
Video Card(s) GTX1060 6GB
Storage Samsung 512 GB 840 PRO SSD Main Drive and Samsung 512 GB 840 EVO SSD Backup Drive
Display(s) ASUS 23" LED Monitor
Case COOLER MASTER Centurion 5 (silver & black)
Audio Device(s) (onboard audio) Realtek ALC892
Power Supply CORSAIR SU-750TX 750W ATX12V / EPS12V
Software Windows 10 Home Premium 64bit Edition
ok, I finally got around to installing the new mb and its all fixed and working fine now

got a bit of a scare at first because the monitor wasn't coming on but it was just a loose connection and its all working great now.

its even charging the battery and able to run without the cord on battery power which it hasn't done in years :clap: :toast: :clap:
 
Top