Re: Dell Optiplex GX280 no boot and fan going crazy
I was able to talk to JayArr_BC on the phone last week about reflowing these boards. I have a couple dozen and, at present, my buddy who does my recapping is too busy to try reflowing one of these 280s. I thought I might check here to see if anyone stateside had any experience fixing these....
Arpajon
Member
Last Activity: 11-11-2016, 09:57 AM
Joined: 10-25-2013
Location: Winston-Salem, NC
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Re: Do bad caps in GX270/280 cause the amber power button?
Thanks. Your response came while I was responding to the previous post. As I said there, I'll swap out and test a few power supplies next week.
Re: BIOS, I guess that means the board is hosed since I can't get anywhere during the attempted boot, so I'm unable to flash the BIOS....Leave a comment:
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Re: Do bad caps in GX270/280 cause the amber power button?
I didn't check each power supply today. In the past, I've both tested and swapped out power supplies and they were fine. I can try testing/swapping a few next week. As I understand it, the solid amber power button light indicates a motherboard issue and flashing amber indicates power supply. I was just hoping to discover whether recapping might be a solution or if that is likely to be indicative of other motherboard issues....Leave a comment:
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Re: Do bad caps in GX270/280 cause the amber power button?
I just went through a bunch more of these. I thought I'd repost to see if anyone remembered whether or not the solid amber power button on a GX280 could be caused by bad caps, even though they're visibly OK. I'm in the process of recapping a bunch of 270s that will boot to BIOS even though there are caps on the mobo that are leaky or visibly domed. I'm OK with recapping the 280s as well, but I'm hoping to find out first if that's a likely fix before I got to the trouble.
Thanks in advance for any help.Leave a comment:
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Re: Do bad caps in GX270/280 cause the amber power button?
They are visibly OK. I'm unfamiliar with how to do any additional checking....Leave a comment:
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Do bad caps in GX270/280 cause the amber power button?
I'm currently going through all the GX270 and GX280 units I have left to see which ones have bad caps. Several of each model have visibly good caps, but the power button stays amber when pressed. If my memory serves me correctly, the likeliest diagnosis for the amber power button is a bad power supply, but I tested a couple of them just for grins and they tested fine.
I realize that caps can be bad without leaking or doming but can't remember if bad caps could be the cause of the solid amber power button. Anyone here remember anything that could help?
Thanks in advance...Last edited by Arpajon; 09-12-2015, 10:59 AM. -
Re: Dell E196FPf
I just ran across something that reminded me that I hadn't checked this in a while. Before we start the repair process, what should we know?Leave a comment:
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Re: Dell E196FPf
I'm caught up on other projects and have replacement caps for these monitor boards in hand. Any advice on how to proceed? As I mentioned above, we have some soldering/cap replacement experience, but it was only on car dashboards about 10-15 years old. We've never tackled anything complicated like a computer motherboard. We do have a couple of different soldering irons but, for the most part, we're starting from scratch in both supplies and experience.
Thanks in advance for any advice - or pointers to instructions we could use.Leave a comment:
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Re: Dell E196FPf
I have a similar situation to smason in the OP quoted above. I have 3 E196FPf monitors and all show the same symptom - the power indicator shows green and stays green - no blinking and no amber. After a quick web search that turned up this thread, I decided to disassemble one - sure enough, it has 2 bulging caps in the inverter section shown in smason's close-up pics.
We've done a bit of minor cap repair to some older model car dashboards, but nothing really like a computer board. Before I dive in, any pointers - things to do, not...Leave a comment:
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Re: Need help removing metal plate from bottom of GX270 board
You can see all the way through the underneath, from side to side. Looking at the bottom, there are four indentions, one in each corner, with the pin sticking through and apparently secured by some type of clip.
I was hoping this was not a little-used type of securing mechanism so that someone here would recognize the type and let me know how to remove it as simply as possible....Leave a comment:
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Re: Need help removing metal plate from bottom of GX270 board
That wasn't my thought here. This one has what look like white plastic push pins in each corner that appear to go through the CPU retention mechanism to the bottom of the board and either have pins/tabs you can push together or maybe even unscrew. We had no luck trying that, or by pushing on the bottom of the pin, or by trying to pry them up using their 'head.'
I've never seen anything like this, so I decided to seek advice before I ruined something....Leave a comment:
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Re: Need help removing metal plate from bottom of GX270 board
Thanks for that info. It sure looks like removing those white pins would release the plate. In fact, later yesterday I found another one with bad caps that had the black screws holding that plate on - I took them out and it dropped right off.Leave a comment:
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Need help removing metal plate from bottom of GX270 board
I have a bad capacitor in the row behind the CPU. I've removed the heatsink and CPU but can't figure out how to get the metal plate off the bottom of the motherboard so I can reach the place where the bad capacitor's pins go through. Before I destroy something, I thought I'd ask for help. I've searched for a solution, but all the name guesses I've tried for the 'CPU base bracket' have been fruitless.
Thanks in advance for any help.
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I should add that the one I'm working on has white plastic clips. I just saw one with black metal screws - I... -
Re: New Members - please post your introductions here
I'm late to the game regarding recapping the GX270 & GX280 and need some help on mobo disassembly. Looking forward to the process of getting to know people here.Leave a comment:
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