Of course! The only issue is that the module in question (eeprom) is absent from most kernels. I was able to build a custom kernel for Slackware where it can be enabled in XConfig (search for I2C, check off all variants, make modules and install)
But then I hit a snag when the I2C tools for Slack did not have the right programs.
I honestly don't know what kind of SPD chip it is. The marking on it does not google, and they are already in the running server so this will remain a mystery. I was told that in all likelihood it should be series 34 I2C eeprom.
Having said...
keepread
Member
Last Activity: 01-20-2025, 04:02 PM
Joined: 10-26-2024
Location: Montreal, ON
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Tried Slackware as well and it has 'eeprom' module that modprobes successfully, but then Slackware does not have I2C tools. I got them from Slackbiulds UK, but then 'i2cdetect' does not work because it cannot load libi2c.so which the package installed according to its output. Also, there is no 'detect-dimms' in the I2C package.
So I still have not found a working Linux distribution that has all of the 'eeprom' module and I2C tools with 'detect-dimms'. Any tips?
Perhaps it would be easier to just buy series 34 eeproms, burn them, and solder onto the DIMMs? I have USBAsp and Postal but...Leave a comment:
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SPD reading/writing under Linux and/or Windows
Hi all,
Where can I find the mysterious 'eeprom' kernel module that some use under Linux to read/write SPD?
I installed 'i2c-tools' and got 'decode-dimms' tool under Debian but not under Fedora, but both of them are missing the 'eeprom' module.
Also tried the SPD.exe tool from EVGA, which correctly lists all of the DIMM slots but reads zeroes from all of them.
Basically I need to dump SPD from some modules that were sold to me as DDR-1866 but are made of DDR-1600 chips, and they do not work. There is no access to RAM clock rate in the BIOS, so I am SOL unless I can rebin... -
The first, dead battery is clearly a fake.
I took it apart, and the cells in it take about 5 seconds to charge from 1.6V to 2.1V, and there the charge ends. On a V-meter they show anywhere from 1.67 to 1.89V.
They feel too heavy, and on a digital scale they weigh 42 g whereas my known good li-ion cells weigh 28 g. Suspecting they are NiMH or NiCd even though they are stamped Li-ion 3.7V?Leave a comment:
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Mon2 has a heart as big as a whale! Thank you so much for this!
It is too early to feel confident and call it a day, but it looks like the reason for the 2nd replacement battery to have issues was contaminated contact blades. I ended up removing and reinserting it a dozen times, and it began to take and hold charge. They have probably been stored in a humid environment for so many years and got oxidized. The 1st one is still dead though.Leave a comment:
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mon2,
Do you happen to have the schematics for the power bus of another Lenovo? This time it is IdeaPad S400 and here are all of the numbers I can see on it.
One after another, two replacement batteries got shipped to me, and they both fail but differently.
The first one quickly charged to 100% but then only held for 15 min and said that its capacity became 12% of design capacity.
The second one says that it charges but always shows 80% charge and does not hold at all.
I'd like to eliminate the possibility that it is the laptop's fault before I go blame the...Leave a comment:
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Please do not feel sorry, Echoeeye! Thanks for trying to help!Leave a comment:
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What would the purpose of that be? How is that going to help a worn power plug?...Leave a comment:
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Turns out that a worn plug was the root cause. Out of desperation, I used a paperclip to bend the blades of the plug back towards the center, and the laptop works fine. They looked too flush with the groves in the plastic, whereas other PS's plugs had them more prominently sticking out of their groves. Whew!
Still looking for help with determining the correct adapter size from the Dell plug.Leave a comment:
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Going out on a limb, but it feels like the PS is too old. Unfortunately it is the only one with the compatible plug.
Have lots of known good Dell PSs. I would like to try to get an adapter from Dell PS to Lenovo power socket. Any tips on what type exactly I should look for?
Lenovo's plug measures 5.5 OD and 2.6 ID which sounds like the 5.5x2.5 plug, but they have yellow tips in the catalogues.
Mine has the black tip, but in the catalogues they have 5.5x2.1 nominal size. So I am confused.Leave a comment:
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Lenovo Ideapad S400 turns off when booting into any OS desktop
I've been using this laptop for quite some time w/o battery. It has Linux installed. Recently, someone sent me a web link in an instant messenger. When I clicked on that link the laptop turned off that instant, before the browser even loaded to open it. Since then it turns off several seconds after I start it up and log into the Linux graphical desktop. I can see the mouse cursor moving around the screen when I draw my finger on the touchpad or move the mouse, and then a terminal window begins to load because the desktop autostarts it from last time, and then I hear a pop from the speakers and... -
Highlighted in yellow, as I presume?
Thanks a million!Leave a comment:
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If I had schematics, I would not have been asking questions here
Leave a comment:
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They are 0805. Unfortunately no capacitance tester. Do schematics or boardview not show their values? A wild guess would be 2.2uF 25 or 50V but I go out on a limb.
The worst part I think is that the next cap parallel to the chipped/shorted one also shows some signs of chipping so might fail soon.Leave a comment:
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The cap was short. Now, I have amber light from the power LED and white blinking light from the power button.
When I press the power button the blinking changes to solid lit white.
After a while, I get a few beeps, and the screen quickly shows a message about date not set and offers to ESC to continue or F1 to enter the BIOS.
I am in the BIOS now. Set date and time, F10, yes, boot into the OS.
Thanks a lot for holding my hand! I should have done away with the chipped cap but was too shy to deal with an unfamiliar device.
Do I have to solder...Leave a comment:
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Of all of them, I can only see short 2V spikes every 200ms on 2-3-4 of 0201. They appear as 14mv DC on my multimeter.
All other pins are 0V
I see a suspect capacitor now. Should I take it off?
.[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Webcam-1730058261.png","data-attachmentid":3494071}[/ATTACH]...Leave a comment:
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LOL. I have a Jewish friend. His last name is Lipshits. It gets censored all over social media because many forum deployers don't know how to use regex...
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Everything I reply to you goes into unapproved posts. What's going on?Leave a comment:
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Another reply went into another unapproved post. Huh? I replied to your history question but it sits at #5 unapproved for some reason. I'll repeat, in the hope that this time the forum posts it Okay:
The history is very simple: since new, it sat in its docking station, for about 2 years, was turned on in the morning and turned off in the afternoon, and had no spills or any other adverse treatment until one morning it was turned on and displayed the battery error. Then, like I had said: the kid reset it several times, every time getting the same battery error until it stopped turning...Leave a comment:
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I replied to your history question but it sits at #5 unapproved for some reason. I'll repeat, in the hope that this time the forum posts it Okay:
The history is very simple: since new, it sat in its docking station, for about 2 years, was turned on in the morning and turned off in the afternoon, and had no spills or any other adverse treatment until one morning it was turned on and displayed the battery error. Then, like I had said: the kid reset it several times, every time getting the same battery error until it stopped turning on completely.
I have 2x original Lenovo...Leave a comment:
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