I have hp 840 g1 with a few tea drops on main board after cleaning it was working perfectly but after one day it start to power down after logo start some time it continue tell windows password then sleep if power button pressed screen comes and went sleep again
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Re: Need help with hp 840 g1
any help here -
Re: Need help with hp 840 g1
After the unit goes to sleep, can you see anything on the LCD with a flashlight?
Is the unit really asleep or just the display goes dark ?Comment
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Re: Need help with hp 840 g1
look it most time shut down when logo start
but when its working it goes to sleepComment
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Re: Need help with hp 840 g1
Is this the HP or Windows operating system logo ?shut down when logo start
If HP, that is the first power on logo ? Try different RAM on the logic board and see this fixes the issue.
If it is Windows logo, remove the SSD / HD and see if the system boots up everytime for the BIOS setup. Do this 5-10 times to confirm.
Any issues with the keyboard / keys being stuck ?Comment
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Re: Need help with hp 840 g1
its hp logo and i trye another ram and witout hdd and keyboard even without screenComment
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Re: Need help with hp 840 g1
Are there schematics for this logic board ?
What are the markings on the white silk screen on the board ? You can post pics for a review.
Suggestions are:
Remove all power. No battery. Meter in resistance mode. Check the resistance to ground of each coil (likely grey in color). Checking for any very low resistance readings.Comment
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Re: Need help with hp 840 g1
after replacing smsc sio its working but gave fan error and shutdownComment
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Toshiba Satellite r945-p440
Motherboard: FAM2SY2 A3256A
I do not have a schematic or board file
I usually let it go to sleep every time I use it because it is nearly always plugged in, with occasional shutdowns to reset things. Then it started to hard crash every time it tried to come out of sleep. The lights would come on for half a second but before anything shows on the screen they would all shut off and it would boot up as if I had shut it down completely (except that windows knows it didn't), and when it comes back on the fan ramps up to full and stays there perpetually... -
This laptop refuses to sleep unless specifically commanded to sleep through Windows. If I close the lid, the screen does go dark just before the lid is closed, so it appears the hall sensor works. However, it will sit there, drawing 1.xx amps until the battery dies. If I command it to sleep, it drops down to normal sleeping current. If I have it sleeping with lid closed and I disconnect the power adapter, it will wake from sleep, even with the lid closed. I have updated the firmware, but still the fault persists. I've also verified power settings in Windows that the device is to sleep when the...
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This is a new item at Electronic GoldMine that has arrived within the last few weeks
Here is the link for them I know for sure that it works because ( I tried it on mine soldering station ) I bought two of them and I just bought two more of them so I have some extra replacement ones in my parts bin
Stahl Tools DDDS Replacement Iron for DSDS Stahl Solder Station
https://theelectronicgoldmine.com/products/g28392
One note it will not work for the ZD-917 or similar model number that does not have the sleep function that are the same iron but the plug only...11-24-2024, 01:25 AM -
Hi,
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Hi, I got HP 450 G1 with boot problem always asking F1 continue F10 bios. I had bad battery on it and replace it with new one because it was giving me error 601. I was thinking that this F1 continue F10 BIOS has to do something with my bad battery, but when I replace it I was not having error 601 anymore but that message on boot with F1 continue F10 BIOS is still here. I tried to replace CMOS battery and reset bios, nothing. I tried to flash new BIOS but it already have latest one and I even tried to overwrite it, still same. Don't know what to do anymore. Does someone have any clue what this...
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