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grimacelord
Badcaps Veteran
Last Activity: 02-19-2024, 03:16 PM
Joined: 01-21-2017
Location: Atlanta, GA
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  • Just wanted to come back and update this. I purchased the following switch from eBay: [url]https://www.ebay.com/itm/275901936717[/url] and it worked. I did have to modify the pins a bit to get it to fit, but it works. Just updated for anyone else who might read this in the future. Thanks!https://Just wanted to come back and...uture. Thanks!Just wanted to come back
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  • I considered that, but I compared the two BIOS .bins in a HEX editor, and they are vastly different....
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  • OLD eMachines T6520 BIOS Request!

    Hello,

    I know that this is probably a long shot, but I figured if anyone could find this BIOS, it would be you guys.

    I am working on an (old) eMachines T6520 desktop PC that [I]might[/I] have a corrupt BIOS.

    [U][B]Model:[/B][/U]
    eMachines T6520

    [U][B]Motherboard markings: [/B][/U]
    MS-7145B0505068731
    RS480M
    7145 v2.1 RS480-A21+SB400-A23

    [U][B]Symptoms:[/B][/U]
    The computer does power on, CPU fan spins, but does not POST. No display.

    [U][B]Troubleshooting steps so far:[/B][/U]
    Replaced...
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  • MacBook Air 2337 - Right I/O Board Audio IC - Alternative Replacement?

    Hello,

    I'm working on a MacBook Air A2337 that had liquid damage on the right I/O board. I ultrasonic cleaned the board and it all functions except the computer has no audio. I tried reballing the audio IC which is [B]TAS5770AC0[/B], but that did not restore audio. I could just replace the entire board, but I wanted to see if replacing the audio IC would fix it first. Mouser has a similar audio IC in stock which is [B]TAS5770LC0YFFR, [/B]but I wasn't sure if it is compatible. I was just wondering if anyone knew if I could use the one from mouser as an acceptable replacement or if...
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  • Dell | LA-K034P REV 1.0 | Possible Shorted CPU?

    Hello. I think I may have a problem with the CPU, but I was hoping someone could look at what I have done here and confirm so I don't waste more time on this one.

    [B][U]Original Problem:[/U][/B]

    No Power.

    [B][U]Troubleshooting:[/U][/B]

    Thermal camera showed MOSFET PQZ1 getting really hot and inductor PLZ01 was reading short on both sides.

    Replaced PQZ1 with new B03N03R MOSFET.

    Laptop now charges and powers on, but only for about 10 seconds before it shuts down abruptly. The fan also runs high during the...
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  • Re: NEC TurboExpress On/Off Power Switch Replacement Help



    I have, but what is confusing me is the circuit type DPST, SPST, etc. Not sure which one I'm supposed to be using...
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  • NEC TurboExpress On/Off Power Switch Replacement Help

    Hello,

    I've been working on a NEC TurboExpress and I accidentally got the plastic inside the power ON/OFF switch too hot while doing other repairs and melted it. At first, it would still power on when sliding the switch, but you had to really press inward while sliding to get it to work.

    I removed the switch component and tried to gently melt the plastic back so it would work more reliably and all I managed to do was make it worse.

    I need to find a replacement On/OFF switch for this, but having some trouble figuring out which kind of switch I need....
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  • Re: Latitude E6530 - Trouble Extracting BIOS Image From EXE



    Thank you so much! Those files worked perfectly. Everything is working as it should be now. Thanks again!!!...
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  • Re: Latitude E6530 - Trouble Extracting BIOS Image From EXE



    Ok thank you. I briefly started reading some guides about how to do that, but I've never had to do this before and right now, it all seems a bit over my head. I really appreciate your help and please, take your time with whatever you're working on now. I'll just watch this thread for your reply.

    Thank you again....
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  • Re: Latitude E6530 - Trouble Extracting BIOS Image From EXE



    Hi. Thanks for the reply. Unfortunately, those files you extracted and zipped for me are the same files I was eventually able to get myself. I have no idea what to do with them to get a 4MB and 8MB file.

    I really appreciate you helping me though. Thank you!...
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  • Latitude E6530 - Trouble Extracting BIOS Image From EXE

    Hi folks,

    I'm having a hard time extracting this Dell BIOS. I have a Dell Latitude E6530 that has BIOS corruption and I need to reflash with CH341A programmer. I have already taken dumps of both the 4MB and 8MB chips on the motherboard.

    Service tag number for this model is: "JYDWYW1".
    Link to latest BIOS for this Service Tag: [url]https://dl.dell.com/FOLDER05371360M/1/E6530A22.exe[/url]

    I have tried:
    [LIST][*]Simply extracting with 7zip [*]PFSExtractor[*]Using "/writeromfile, /writehdrfile, and /writehexfile" commands[*]Check...
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    Last edited by grimacelord; 10-26-2023, 08:20 AM. Reason: Attached dumps

  • Re: Need Help Identifying Capacitor On Kar-Tech Versa Remote



    Thank you!...
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  • Need Help Identifying Capacitor On Kar-Tech Versa Remote

    Hello,

    I have sort of a weird one here. This is the circuit board for a Kar-Tech VERSA remote. It's a wireless transmitter for crane and other heavy equipment.

    One of the capacitors have blown and I need help finding a replacement. The capacitors are 11.4mm x 6.6mm in size and the only imprint on them is "200mΩF", which I am assuming means 200 microfarads. There is no other markings on them. I have tried doing some searching on digikey and mouser, but I can't seem to find anything like this on there or I am inputting the wrong search parameters....
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  • Re: Lenovo Legion T5-26AMR5 Desktop - Corrupt BIOS



    Also, are you sure it's a zener diode?

    You may take a look at this one: [url]https://www.digikey.com/en/products/detail/torex-semiconductor-ltd/XC6210B332MR-G/2138119[/url]

    I found that using: [url]https://smd.yooneed.one/[/url] - which has helped me in the past identify components. Pretty cool website. According to it, the digikey link I posted above could be your component, which is a voltage regulator. Use the [URL="https://www.torexsemi.com/file/xc6210/XC6210.pdf"]datasheet...
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    Last edited by grimacelord; 06-27-2023, 05:48 AM. Reason: Corrected links

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  • Re: Lenovo Legion T5-26AMR5 Desktop - Corrupt BIOS



    Unfortunately, no. I tried flashing the BIOS multiple times with multiple different versions released by Lenovo for that board and none of them worked. I even tried replacing the BIOS chip itself and flashing it and that didn't help either.

    Due to time constraints with my customer, I had little choice but to simply offer a motherboard replacement. I offered them a replacement with the original motherboard which was about $170 if I remember plus labor or to replace with another B550 chipset board that...
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  • Re: Lenovo Legion T5-26AMR5 Desktop - Corrupt BIOS



    Hi there. Thank you for taking some time to try and help me, but unfortunately the BIOS you provided makes the computer behave the same way. It does power on, all lights and fans spin, but nothing ever appears on screen....
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  • Lenovo Legion T5-26AMR5 Desktop - Corrupt BIOS

    Hello there.

    I am working on a Lenovo Legion T5-26AMR5 desktop that currently has a corrupt BIOS and I have been unsuccessful thus far in trying to fix it myself.

    History:

    1. This computer came to me initially with an error message that said "BiInitializeLibrary failed 0xc0000001" or "0135 fan error". It would always be one of the two errors. It should be noted that when it produced the fan error, there was no physical problem with the fans. They were all spinning just fine.

    I searched for this error online and discovered...
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  • grimacelord
    replied to 820-01237-a bios?
    Re: 820-01237-a bios?

    So I've been doing some research on my own since I made this thread and I did eventually find a supposedly clean BIOS. I tried flashing it to the chip, but the iMac won't turn on at all with the "new" BIOS. At least with my old corrupt BIOS, it powered on, it just didn't POST.

    Attached is my original corrupt BIOS and the new one that I found. Can someone take a look at these and help me? Thank you...
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  • grimacelord
    replied to 820-01237-a bios?
    Re: 820-01237-a bios?



    You probably should have started your own thread instead of ask your question in mine, but try this....
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  • grimacelord
    replied to 820-01237-a bios?
    Re: 820-01237-a bios?



    Ooops. I meant to post it before.

    Could someone look at this and see if it appears to be corrupted? I'm troubleshooting an iMac that was working fine and then there was a series of power outages and afterwards the iMac does not POST. Diagnostic LED #1 and #2 are illuminated, but not #3. I did a quick visual inspection of the logic board and found no visibly bad/burned components and found no shorts. Since the iMac isn't POSTing, I thought it may be a corrupt BIOS. Looking at my dump in UEFITool, the parser indicates that there...
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    Last edited by grimacelord; 02-09-2023, 10:00 AM.

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