16 Threads found on edaboard.com: Motherboard Fault
I turned the PC on and there were 3 long beeps. Therefore a Keyboard issue.
So I plugged in the keyboard (a USB one) that I was using with it before the fault & heard the same beeps.
So I tried 3 different PS2 keyboards all with the same result.
I tried a PS2 & the USB one together - same result.
The LEDs on the keyboards don't flash as they n
General Computer :: 17.01.2011 19:30 :: ljcox :: Replies: 3 :: Views: 879
How do ???? use a digital meter ??? detect fault in a pcb/motherboard
Electronic Elementary Questions :: 27.02.2012 14:29 :: kenooff :: Replies: 0 :: Views: 580
I am looking for a solution to a dead HP DV6-1235ee laptop with the following motherboard:Foxconn
Quanta UT3 schematics
some of the voltages I measured:
DC jack = 19.93V
Service Manuals, Requests, Repair Tips :: 05.10.2012 04:39 :: v1406 :: Replies: 3 :: Views: 1405
had you checked processor with another motherboard?
if not check with it any i5 supported motherboard.
did you get any sound,that internal fan is moving or not?
Service Manuals, Requests, Repair Tips :: 03.05.2013 11:47 :: SANDEEP ANAND :: Replies: 2 :: Views: 459
I have checked that the cpu heats normal but motherboard not give display I have checked by changing Adp chip but no help.
Service Manuals, Requests, Repair Tips :: 22.06.2013 11:00 :: peter_england :: Replies: 6 :: Views: 452
i have a faulty acer 5315 / compal la-3551p motherboard with no charge light, no power up and the fault that i know of is a burnt out RB751V-40TE17 which i believe from a bit of research is a 40V 30MA SOD-323 Schottky barrier diode, i have removed the broken diode and was wandering if bridging the pad's will get the board working (...)
Service Manuals, Requests, Repair Tips :: 05.08.2013 14:07 :: refurb.tech :: Replies: 6 :: Views: 557
The ground pins on the video connector are signal return path grounds. The shell of the conncetor is grounded to the case of the computer, which is generally connected through the computer case to the grounding pin of the AC power cord (earth ground).
The signal ground is isolated from the case ground by virtue of the fact that power for a PC i
Professional Hardware and Electronics Design :: 28.11.2004 00:22 :: House_Cat :: Replies: 6 :: Views: 1242
there will be a transistor that drives thisone you checked usualy smd
the best way is to use a motherboard cpu memory and os hdd mounted outside the pc
and also then mount the pci modem
then you can use a volt meter to measure
the devices various voltages on there base pin connections
if it keeps it open all the time
Hobby Circuits and Small Projects Problems :: 26.01.2007 14:34 :: VSMVDD :: Replies: 10 :: Views: 1331
My brother has bought an Intel 845-GLVA motherboard. from 2nd hand pc shop..but unfortunatly we dont have its Drivers Cd..if some 1 can give us the audio driver .we will be very thankful to this act of kindness
Service Manuals, Requests, Repair Tips :: 12.04.2009 13:10 :: aliraza63 :: Replies: 2 :: Views: 4347
Laptops--call them notebooks, portable computers, or whatever else you like--are tightly engineered items. It's hard to get all the required components to obey stringent performance and power-management requirements, and still fit into a small case. The job usually requires a custom motherboard and other specialized components, and s
Service Manuals, Requests, Repair Tips :: 05.09.2009 12:04 :: tanbukhari :: Replies: 0 :: Views: 741
i have two ecs 915-M5 motherboard here the problem of no.1 is dead and i measure voltage it has no 12v supply,where can i begin to diagnose the fault..can you please give idea, do you have schematic diagram?
and the other board is no display but power...what will be the fault?
Service Manuals, Requests, Repair Tips :: 28.10.2009 05:43 :: nash10 :: Replies: 0 :: Views: 487
It may not be the PSU that's at fault, I had a similar problem a few months ago and it turned out to be the motherboard connection to the PWR_ON# terminal that wasn't being grounded properly everytime. How often does the problem occur?
Service Manuals, Requests, Repair Tips :: 27.02.2011 11:00 :: grahamit :: Replies: 2 :: Views: 1047
Anybody know what is the sign of northbridge or southbridge fault?
I have giga ga-8i865gme-775 mainborad .I checked all capacitor and mosfet on the board all of them are healthy and I repalced my RAM and CPU but with this motherboard my computer wont boot up.what is your opinion ?
Service Manuals, Requests, Repair Tips :: 02.07.2010 06:11 :: majid169 :: Replies: 1 :: Views: 916
also chck the status of USB ports in the Device Manager..
probably there's sum problem with d motherboard.. get it checked wid sum hardware vendor
Hobby Circuits and Small Projects Problems :: 15.10.2010 01:24 :: nikhil_jain :: Replies: 7 :: Views: 1192
hi friends,i got a mother board from my friend ,its desktop motherboard - BIOSTAR 945GC-M7 have no disply problem.power on/off are ok.when i power on ,fans are running.i had changed RAM,PSU,PROCSSOR.all of these are running well in another board.
after trying 50-60 time on/off,sometime display appear for 2 -3 second.sometime its not.
Service Manuals, Requests, Repair Tips :: 03.12.2011 13:23 :: SANDEEP ANAND :: Replies: 13 :: Views: 1648
i have problem with g31 motherboard it start with post card error 1915 and no display on monitor
if i remove the ram beeps can sound . please help.
Service Manuals, Requests, Repair Tips :: 20.08.2013 14:08 :: peter_england :: Replies: 2 :: Views: 396