Please help with bios repair of Lenovo ThinkCentre M70t Gen 3 corrupt bios. Pc gives beep without ram but no display with ram. Ram and processor are ok. If possible, add DMI information to new bios.
Lenovo ThinkCentre M70t Gen 3 (12th gen)
Machine type: 11XE
Serial Number: PC2G4T4S
Motherboard: I670MS...
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05-30-2024, 06:34 AM
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Can I ask you guys help me identify this godforsaken component?
I'm tearing my hair out finding this component.
The board is from an egg incubator.
i got it with a "popped cap" while there are many damaged components on it, which got succesfully identified with one exception:
[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3267072}[/ATTACH]
And here is the board where it came from (U1/1):
[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3267073}[/ATTACH]...05-08-2024, 08:21 AM -
HELLO
board after filling with liquid! which is why the u2300 burned out. Since I have no idea how the DDR is selected, I removed all 4 modules from a similar board and placed them on this board!
old ddr
[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3283808}[/ATTACH]
new ddr
[ATTACH=JSON]{"data-align":"none","data-size":"medium","data-attachmentid":3283809}[/ATTACH]
Is it permissible to replace DDR like this?
Are any...06-01-2024, 06:43 PM -
I have a 5W lamp on 12Volts battery, I want it to be half as bright, so I will add a resistor. What resistor should I supply?
A = W = 5 = 0.416mA
_ _
V 12
R = V = 12 = 28.84 Ohms (R) this is resistance of lamp
_ _____
I 0.416
So I will add one resistor 28.84 Ohms
I will have 28.84 + 28.84 = 57.6 Ohms
Or 28.84 + 28.84 = 14.42 Ohms
I don't know if it will work in series or in parallel
voltage would be 6V and amp current mA = 0.208mA We divide everything by two
W= V * I...Today, 01:58 AM -
Hi everyone,
I have Razer Blade 15 RZ09-0369 with EC chip that was shorted. Atleast I believe so as it was drawing the most current on my bench power. I got a new chip and programmer to go with it. But I don't know where the SM bus connection point is on the motherboard as I don't have the schematics. I couldn't find the data sheet pinout for the IT8390E-256 chip either....Today, 03:39 PM -
I desoldered samwha NF capacitor(50v 5.6uf) from PCB circuit of 29inch CRT TV which have symptoms of no display after I heard sound of inrush of current to TV whenever I switch on this television.
I measured ESR value of this non-polarized capacitor(samwha NF capacitor 50v 5.6uf) by means of MESR-100 ESR meter and It displayed 0.3 ohm
And When I measured its capacitance with digital multimeter and LCR-T4 Mega328 meter, It displayed 10uf from DMM and 8uf from LCR-T4 meter.
I found catalogue of samwha capacitor(samwha-catalogue_3.pdf file), which is attached to this thread,...06-02-2024, 07:31 PM -
Is there a way to find out who owns the original email on a macbook air M1 locked with icloud?06-02-2024, 09:18 AM
-
I have got an Steeldigi Steelshock 4 v2 controller won't draw any amp from outlet.
I have disassembled and removed the battery. I have tied to measure some points. The usb connector shows 5 volts. There are test points and shows 5 volts everywhere it should. The battery connector in diode mode shows 0.009v is it ok?
There is an U4 chip place, but no chip, between the battery connector and the charging port.
How should I progress to identify the problem?
Can anyone help me with this?...Yesterday, 11:20 PM -
I got a new EC chip cause old one was shorted but I need to reprogram it somehow. I got the chip and the programmer/reader. I also trying to figure out where to hook up the wires for the programmer. It says to connect to SM bus on motherboard . Any help is appreciated.
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Screenshot 2024-06-04 173121.png","data-attachmentid":3284149}[/ATTACH]...Today, 03:30 PM
-
Hello,
I post this in this section for a Dell Inspiron 3477 All in one as the motherboard is more close to a laptop one.
So, the issue is that whatever adapter I use, I get this screen when it starts up. I tried aftermarket adapters and original HP adapters, both 65W and 90W. Minimum requirement is 65W.
I don't have its authentic Dell adapter as I took it for free in case I manage to repair it, but the HP ones I think are pretty much identical.
First thing I checked is if the dc jack on the board has an issue but with the MM I see all three pins, ground, 19.5V and...Today, 10:52 AM -
I have a 5W lamp on 12Volts battery, I want it to be half as bright, so I will add a resistor. What resistor should I supply?
A = W = 5 = 0.416mA
_ _
V 12
R = V = 12 = 28.84 Ohms (R) this is resistance of lamp
_ _____
I 0.416
So I will add one resistor 28.84 Ohms
I will have 28.84 + 28.84 = 57.6 Ohms
Or 28.84 + 28.84 = 14.42 Ohms
I don't know if it will work in series or in parallel
voltage would be 6V and amp current mA = 0.208mA We divide everything by two
W= V * I...Today, 01:58 AM -
-
Hi everyone,
I have Razer Blade 15 RZ09-0369 with EC chip that was shorted. Atleast I believe so as it was drawing the most current on my bench power. I got a new chip and programmer to go with it. But I don't know where the SM bus connection point is on the motherboard as I don't have the schematics. I couldn't find the data sheet pinout for the IT8390E-256 chip either....Today, 03:39 PM -
I got a new EC chip cause old one was shorted but I need to reprogram it somehow. I got the chip and the programmer/reader. I also trying to figure out where to hook up the wires for the programmer. It says to connect to SM bus on motherboard . Any help is appreciated.
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Screenshot 2024-06-04 173121.png","data-attachmentid":3284149}[/ATTACH]...Today, 03:30 PM -
I have got an Steeldigi Steelshock 4 v2 controller won't draw any amp from outlet.
I have disassembled and removed the battery. I have tied to measure some points. The usb connector shows 5 volts. There are test points and shows 5 volts everywhere it should. The battery connector in diode mode shows 0.009v is it ok?
There is an U4 chip place, but no chip, between the battery connector and the charging port.
How should I progress to identify the problem?
Can anyone help me with this?...Yesterday, 11:20 PM -
See attached picture. I have a Fluke T100 Voltage Tester that the resistance and diode measurement isn't working (it's not the batteries (as I have already checked them and put decent Duracell 1.5V AAA batteries inside it).
I have looked on the web for any information and on youtube without any results for this model.
There are no screws visible or anything obvious. So I am hoping someone here has the solution to take it apart?
The only way I can see is underneath the yellow rubber handle area, however I don't wish to damage it if it isn't the case!...Today, 07:21 AM -
-
I need asus zenbook bios motherboard is UX562UG
R2.1
here is my old bios...Today, 12:48 AM -
help with the gigabyte g7 ke bios, after turning on the fans turned on to full and the laptop itself turned off, I decided to take it from the off site and run it through the utility after 35 percent of the download, the laptop turned off and now it is clear that there is no initialization, maybe someone has a dump for this miracle I will be very gratefulToday, 09:59 AM