Re: DAX1BDMB6F0 Power Issue
Hi - Again, do this while the computer is unplugged and on battery power only or you will be wasting your time...
Pierre-Yves
Member
Last Activity: 01-28-2023, 12:38 PM
Joined: 06-26-2018
Location: Ottawa
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Re: DAX1BDMB6F0 Power Issue
Please note that the little orange charging light is not as important as the white light directly on the power button. The latter is the one I was referring to in my post yesterday.Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hello,
Although there was a lot of excellent diagnostic by seasoned members on this issue, because it is intermittent, the problem was never pin pointed.
My advice to you at this point is the following:
- make sure you have some power left in the battery, over 30% is fine.
- unplug the computer from the power source - that is the root of the problem
- the following will sound stupid but worked for me many times: do a power reset but do not plug in your power supply. This is to ensure no power is left in the circuits....Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Bonjour Piernov
Où est-ce que je me procure le EC "embedded controller" flash pour la carte mère et comment fait-on ça?
Merci
Pierre-YvesLeave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hello Darcy,
My second board also has a similar problem. I've learned to live with it and this is what I do: If you get the light on and you can start up your computer, do that and charge your battery completely. When it is charged, always unplug it before you turn the computer off. Once it is off, mine starts every time and once started, I can replug the adapter. Again, the trick is to have the charging adapter unplugged before you turn the computer off. For some reason there is something with the charging system on those boards that is...Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hello,
As I mentioned, my new power adapter (45W, 2.3A, 19.5V) which has a center pin in the connecting plug is not recognized by the computer when I do a component test.
So I bought a connecting plug (with a center pin) that had a wire that I could cut to splice it with my old HP adapter wire (the one where the center pin on the connector broke off). The wire on the new connector had two wires only instead of three. I took the connector apart and the power wire was connected at two places, the power (19.5V) and to the centre...Last edited by Pierre-Yves; 08-11-2018, 07:29 PM.Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hi - Yes, I updated the bios and ran a power test on both the battery and the AC adapter and the battery is OK, although it is asking me to calibrate it (says 20% off) and the AC adapter shows an error message (wrong signal coming in) even if it is new, has a center pin, and has the right specs ([I]i.e[/I]., 45W, 19.5V, 2.31A). So, I will be looking to change that again for an HP adapter.Re: DAX1BDMB6F0 Power Issue
Hi - Yes, I updated the bios and ran a power test on both the battery and the AC adapter and the battery is OK, although itLeave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hi
Well, the motherboard lasted one day. This morning I came to turn the computer on and nothing, it just blinked once. Tried and tried pushing the power button and just got a blink from the power button only. I unplugged it and same thing. I let it sit there 5 min and it started again on battery power only.
So, according to my logic, it's not the motherboard, not the power supply, not the power button card nor the small USB port card it is connected to because I replaced all that. There are a couple of things left, the...Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Good evening,
I just replaced the motherboard with a new one Model DAX1BDMB6F0 model X1BD. I'm writing this post on the fixed computer right now and everything seems to be working fine.
Glad to have the computer back but haven't given up on the old board and will still try to fix it. An ITE chip is on order and I have a soldering iron with a temperature control; I don't have the hot air station but will try not to be too destructive so the new chip sits on the board nicely.Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hi & thanks. Perhaps this is a dumb question but could I have re-flashed the ITE to reset it somehow with the correct firmware, or is it that once it is set the first time, it is imprinted or engraved permanently?
Just got the soldering gun and braid today from Amazon.Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hi & thanks for those "tips"...
Ordered a soldering iron with a temperature sensor, a desoldering braid and an ITE chip; hopefully will get these within a week or so.
Can't believe how inexpensive the ITE chip was ($4 to $5). I guess if you know what you are doing, are equiped (& skilled), you can save a lot of money.Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Yes, I will surely need the practice.
One thing I notice though that made it difficult to solder was a layer of wax or epoxy on top of everything and that was probably why I came in with too hot of an iron for too long. I wonder then if there are products to disolve that without damaging the board.
Otherwise I will look into getting more accurate blades. I see they come in many different widths. The EC chip is something like 15.5 mm wide across the pins and it is probably a standard width.Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hi - I have a Weller soldering gun and tried to resolder the EC. I think I messed up as looking under the microscope it doesn't look to good...
I went on eBay and bought a new board; that was a dent in the wallet but hey, the computer is nearly $1K so I guess it is worth it.
I will let you know how that turned out...
Thanks for all your help BlueMidnight, I learned a lot.Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hello,
I think it the same power supply but I can't say for sure...
For the Pin readings, I plugged the power supply to the card and the charging light went on. Here are the measurements:
Pin 87: 0V
Pin 119: 0V
Then I pressed the power button and the charging light went off. Here are the measurements:
Pin 87: 0V
Pin 119: 0V
I haven't got a successful power up for a while now with the new charger.
& by the way, pin 87 does not go anywhere, unless...Last edited by Pierre-Yves; 07-10-2018, 05:11 PM.Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hello,
When I plug in the adapter with the center pin (charging light off) the brown wire coming into the board has 19.9V. The yellow and white wires both have 5V. When I plug in the adapter without the center pin, the brown wire read 0V and both the yellow and white wires have 5V.
Before the tests above, I plugged the adapter with the center pin and the charging light came on, so I made some measurements:
Bat_I pin 66: 0.81V
AD_Type pin 67: 5.57V
SYS_I pin 68: 0.84V
So both Bat_I and SYS_I...Last edited by Pierre-Yves; 07-08-2018, 01:08 PM.Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hello again,
I measured the THRM Pins with the motherboard still unresponsive (no charging light or anything...)
Pin 70: 2.97V
Pin 71: 3.63V
Pin 72: 2.93V
Also measured:
Bat_I pin 66: 3.61V
Ad_Type pin 67: 4.00V
Sys_I pin 68: 1.79V
Also measured:
TempMBAT pin 120: 2.67V
H_PROCHOT#EC pin 124: [B]0V, that is zero volts[/B]
DGPUPROCHOT# pin 77: 0.22V this pin did not go anywhere so it was difficult to take the measurement.....Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hello,
The adapter is 19.5V, 2.31A, and 45W
From what you said, if the center pin voltage is altered because of the two resistors as per your diagram, can the resulting voltage be measured, that is of course while the adapter is plugged into the board?
Also, not quite sure what "using a 2K pull-up" means.
I will take the motherboard out and check the voltage on the ITE again at the THRM (& Prochot) pins.Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hello - you will have to excuse me but the center pin voltage is not 12.5V but actually 19.9V. I must have had a bad connection when I took the reading the first time.
Also guess what, I left the computer be with the new charger plugged in for a while and it is now completely unresponsive no matter what I do.
Back to square one...Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hello,
Got the new adapter today, plugged it in and the computer started right away. Turned it off and back on right away. The third time, pushed the power button and it blinked once, pushed the power button again, it blinked again and started on the third push of the power button. The fourth time was the same as the third.
I measured the voltage on the inside of the adapter and it is 19.9V. The pin voltage is 12.5V. I gather there has to be some reason for the lower voltage on the center pin that is logical.
...Leave a comment:
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Re: DAX1BDMB6F0 Power Issue
Hello BlueMidnight,
After running the ITE, Firmware and regulator output inductor tests, I noticed that the charging light came on. I turned the power button on and it
it came on. Unplugging the power supply, plugging it back in resulted in the charging light staying on and being able to press the power button on and off and it worked. So I rebuit the laptop and turned it on, and it worked. I turned it off and could not turn it back on and the power button would blink when I pressed it. If I wait 15-30 secs, press the power button,...Leave a comment:
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