Hello, I got a unit which is having a problem of no power on using power button,
It powers on when I remove the CMOS batt then display is ok but when I shutdown it by long pressing the power button it turns off but when I turn it on using the power button no reaction at all.
I already tried to reflash the bios and Clean ME but no effect,
I also check the RTC section and it is the reading I got
SRTCRST# ok
PCH_RTCRST# ok
+3.3V_PRTC ok
PCH_INTRUDER_HDR# ok
POWER_SW_IN# ok
DOCK_PWR_SW# ok
TDOCK_PWR_BTN# ok
POA_WAKE# ok...
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Badcaps Statistics
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Topics: 218,617
Posts: 1,451,481
Members: 555,221
Active Members: 23,935
Welcome to our newest member, Jay Codes.
Latest Topics
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-
by FoetussGood evening
I recently aquired a rev 1.1 Gigabyte 60XT, and was suprised of the amount of leaking caps for a motherboard of the P3 era. Especially the way the 330µf caps seems like the housing discolored even.
Now, there are some 3300µF 6.3V KZG series around the CPU. Would it be OK to replace them with something like EEUFR1A332 ? (Panasonic FR 3300µF 10V). Or was this board designed around [B]very [/B]low ESR caps?
But I was also suprised about the bigger boys, which are 330µF [B]25V[/B].
Could it be they used 25V caps because they were cheaper / available...-
Channel: General Capacitor Questions & Issues
02-11-2025, 12:22 PM -
-
by lapfixHello friends.
hp 15 -da009nk ...la-g07cp.
got this lap with capslock 5 long 3 short.
Try new dump f.48 still the same.
try another dump f.04 power on..no display..consumption 0.498..no caps lock blinking.
all voltage are présent.
pl301/302= 3 and 5 volt.
pl1001 1.082v.
pla1 1.033v
plz1 vcc core 1.058v
plg1 0v..i think it s the Intel grpahic
plw1 1.373v.
plv 3/plv4 vga core 0.918v
consumption 0.498.
original bios version f.02..
any help!Today, 03:34 AM -
by doivaythoiemNeed help bios
LENOVO NM-E291 REV0.2 UPDATE BIOS ERRO
SN not found because it was deleted
original bios...-
Channel: BIOS Requests ONLY!
Today, 03:25 AM -
-
by phantomEVOHi to all, i don't know the real history of this board.
the technician who gave me this board says: "i don't know the history of this board, it not switch to 20v. i have changed ub300 and ub400, than i've discovered to have short on 5v andi i have changed u7650. still 5v not switching"
so under microscope i've found
- shorts on rb246,rb401,rb400
- u7650 (tps51980b) changed with (tps51980A)
- j6640 melted (maybe some one has reflowed or changed u3100 or u3200?)
so i've bouth another identical board anche...02-12-2025, 03:58 PM -
Hi
What adapter do I need to read the BIOS dump from the chip Gigadevice 25B256DF1G...Today, 02:41 AM -
by Alecs25Hello,
i have this MSI which is not turning on, a bit of history:
It was not used for months, the owner replaced the battery because it leaked, even before the replacement the laptop was not starting, just LED HDD blue blinking and so the charger led also blinking. This behavior is still present.
The only thing i done was to reflash SPI, nothing else done. I've just checked for voltages around the board.
19v seems present and so is 3VALW and 5VALW. I'm not that expert, there is the schematic with the power sequence, but i never understood how to do the checks,...01-29-2025, 04:24 AM -
by makretallicaHello , am requesting Bios for HP 27-cb0019 All in one PC
Motherboard : dan18pmb6e0 rev:e
Model : N18P mercedes
ProdID : 577G7AA#ABL
S/N : 8CC21631WJ
HP 27-cb0019 All in one PC
Attached my backup ....-
Channel: BIOS & Schematic Requests!
Yesterday, 01:18 PM -
-
HOLA BUENAS TARDES TENGO UNA MOTHER BOARD M2N61-AR ESTA DESVIVIDA Y TENGO TIEMPO BUSCANDO ESQUEMATICO DE ESTA MISMA NO LO ENCUENTRO TENGO ALGUNOS MODELOS DE...
-
Channel: Schematic Requests ONLY!
Yesterday, 05:48 PM -
-
by tuantu01I have an MSI computer. Bios currently does not recognize M2 hard drives and SSDs. Please Fix It For Me. Sincerely thank you...
-
Channel: BIOS Requests ONLY!
02-13-2025, 09:08 PM -
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by doivaythoiemNeed help bios
LENOVO NM-E291 REV0.2 UPDATE BIOS ERRO
SN not found because it was deleted
original bios...-
Channel: BIOS Requests ONLY!
Today, 03:25 AM -
-
by Fabián MorinI have problems i wrote many times the bios for this laptop but i cannot solve my problem can help with the rigth bios ?
this is my original bios
[url]https://www.mediafire.com/file/dezy0rrq6acx7nx/bios_ori_len_s145.Bin/file[/url]https://I have problems i wrote many.../file[/url]-
Channel: BIOS Requests ONLY!
Yesterday, 08:23 PM -
-
Hi,
Wonder if someone could assist with my issue. I set my bios password a couple years ago and I can't remember it. I tried going through the guides but lost in the Hex editing of DMIWould really appreciate if someone could assist in clearing the password for me.
Lenovo ThinkBook 13s G2 ITL
Serial: PW03Z1CD
MTM: 20V900AXUK
Bios Version: F9CN51WW
Regards,
Steve...-
Channel: BIOS Requests ONLY!
Yesterday, 05:15 PM -
-
by lapfixHello friends.
hp 15 -da009nk ...la-g07cp.
got this lap with capslock 5 long 3 short.
Try new dump f.48 still the same.
try another dump f.04 power on..no display..consumption 0.498..no caps lock blinking.
all voltage are présent.
pl301/302= 3 and 5 volt.
pl1001 1.082v.
pla1 1.033v
plz1 vcc core 1.058v
plg1 0v..i think it s the Intel grpahic
plw1 1.373v.
plv 3/plv4 vga core 0.918v
consumption 0.498.
original bios version f.02..
any help!Today, 03:34 AM -
Hi
What adapter do I need to read the BIOS dump from the chip Gigadevice 25B256DF1G...Today, 02:41 AM -
by tech_guruHello.
If you can help with this one please...The laptop does 8 beeps at boot which as I see is LCD error. The laptop shows image to external monitor normally. New screen flex and screen does not change anything.
So I took measurements in the LCD socket (LCD1):
DCBATOUT_LCD 19V
LCDVDD_LCD 3.3V
DBC_EN_R 0V
EDP_HPD_CONN 3.2V
LCD_TST_C 0V
EDP_AUX 3V
EDP_AUX# 0V
EDP_TX0# 0V
EDP_TX0 0V
EDP_TX1# 0V
EDP_TX1 0V
LCD_BRIGHTNESS 0V
BLON_OUT_C 0V
PANEL_SIZE_ID_CONN 0V
The ones that are 0v,...Today, 02:13 AM -
by StephenBoard was just repaired, great thing for us since the DATA was recovered, however the battery was just replaced with a brand new OEM battery and holds the charge well, I plug it in and the charge icon comes on (lightning bolt) then it goes off and comes back again and repeats itself, The MagSafe 3 Amber light is turning off and on constantly, which is telling me something else is going on, before I pull this board out again I was wondering if anyone has come across this issue since its a little new to me on this model. Battery is holding the charge well at 52% but it won't charge further, I checked...02-12-2025, 04:41 PM
-
by прямоWas looking for a simple CV CC linear supply to build and came across this one.
[url]https://oshwlab.com/svalentin544/lab-power-supply-0-38v-0-5a[/url]
I etched the provided board design and populated it.
The output voltage adjustment works.
The output current adjustment however, doesn't behave like I expected it to be. If PR2 is going clockwise, the output voltage decrease. Adjusting R5 has no effect.
I don't have a load connected to the output at all.
Can someone explain how the current adjustment...Yesterday, 11:09 PM -
by PacoGTHello friends, I have a question. They brought me this video card, a DELL RTX 3080. They told me that it fell and the impact no longer produced video.
When trying it, it's as if it wanted to give video but in the end nothing, I already checked voltages etc. everything is as it should, but without video
I suppose it could be a bios problem but since sometimes they don't tell you everything, I've searched for the bios everywhere but without success
I can't find a backup or something to try to reprogram bios and see if it's the fault, could you help me maybe someone has one that...-
Channel: BIOS Requests ONLY!
Yesterday, 11:09 PM -
-
by PacoGTHello friends, I have a question. They brought me this video card, a DELL RTX 3080. They told me that it fell and the impact no longer produced video.
When trying it, it's as if it wanted to give video but in the end nothing, I already checked voltages etc. everything is as it should, but without video
I suppose it could be a bios problem but since sometimes they don't tell you everything, I've searched for the bios everywhere but without success
I can't find a backup or something to try to reprogram bios and see if it's the fault, could you help me maybe someone has one that...Today, 01:08 AM