Re: Dell Precision 490 motherboard
Thanks for your informative replies. They are very much appreciated.
No, the computer was not moved at all. It was sitting near a bunch of other computers. You mention vibration, and recently, they've been doing construction work (digging) not very far from me, but I think there's absolutely no way it caused this, because all the other computers are fine.
I'll try the other things you mentioned and then post again!
Thanks again!
[B]EDIT:[/B] Keep in mind that even the NIC...
bronchitis
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Last Activity: 04-19-2020, 07:01 AM
Joined: 04-09-2020
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Last edited by bronchitis; 04-19-2020, 07:01 AM. -
Re: Dell MK463 N750P-00
Thanks again for your reply!
I forgot to tell you that I actually checked the capacitor before putting everything back together but... the top, it isn't plastic. The top is metal or aluminum I think. It didn't move when I pushed it. You're referring to the top part, right (where the vent is)?Leave a comment:
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Re: Dell Precision 490 motherboard
I have tried 3 different GPUs. I've also tried reseating the RAM and clearing the CMOS, but the errors persist.
The capacitor you mention is indeed a KZG. The other user had pointed this out to me but I thought they were referring to the other one, which is a Rubycon. My bad!
Do you think it could be the cause of these issues?...Leave a comment:
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Re: Dell MK463 N750P-00
I chose to leave it as is. I've measured its voltages with a voltmeter and they're perfect....Leave a comment:
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Re: Dell MK463 N750P-00
Hello
Thank you very much for your reply. I will clarify it for you!
The computer was given to me about two years ago. It would not turn on when I received it (the motherboard capacitors were leaking). We replaced the capacitors and it actually worked fine. I installed Windows XP on it and even ran diagnostics without problems. After that, it was put in storage, so it has spent the last 2 years sitting there unused.
Fast forward to now, we've taken the computer out of storage and tried turning it...Leave a comment:
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Re: Dell Precision 490 motherboard
Sorry, but I have no clue what size the original ones were. They're long gone.
I have found the following needle set on eBay. Do you think they'll be any good? [URL="https://www.ebay.co.uk/itm/8PCS-Hollow-needles-desoldering-tool-electronic-components-Stainless-steel-uk/192512943471?hash=item2cd2aa656f:g:Xj0AAOSwJpda1cH-"]https://www.ebay.co.uk/itm/8PCS-Hollow-needles-desoldering-tool-electronic-components-Stainless-steel-uk/192512943471?hash=item2cd2aa656f:g:Xj0AAOSwJpda1cH-[/URL]...Last edited by bronchitis; 04-13-2020, 06:35 AM.Leave a comment:
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Dell MK463 N750P-00
Hello
I have a Dell Precision 490 which I posted about here (I kindly ask that you read it because it describes the problem I was having with it): [URL="https://www.badcaps.net/forum/showthread.php?t=83786"]https://www.badcaps.net/forum/showthread.php?t=83786[/URL]
I admit I've done a little bit of a bad job on the motherboard capacitors. I've ordered new ones and will be replacing them again when they arrive so that's sorted. I've ordered a desoldering station because it was needed and a soldering iron itself is simply not enough. As suggested, I've... -
Re: Dell Precision 490 motherboard
Hello again.
I have opened up the power supply.
Looks fine to me.
I've seen at least one cap that has KZE on it. Is that ok?
[B]EDIT:[/B] Actually, I take it back. In the second picture, it seems like the right capacitor has a *slight* bulge. It's barely noticeable and I only managed to spot it after looking at the picture. Is this a problem?
[ATTACH]210366[/ATTACH]
[ATTACH]210367[/ATTACH]
[ATTACH]210368[/ATTACH]
[ATTACH]210369[/ATTACH]
[ATTACH]210370[/ATTACH]...Last edited by bronchitis; 04-10-2020, 06:03 AM.Leave a comment:
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Re: Dell Precision 490 motherboard
Thank you very much for your informative reply!
By checking the power supply, I guess you mean to open it up and inspect it, right? What should I look for, bad caps as well?
The capacitor near the RAM slots is a Rubycon.
As for the capacitors being wrongly sized/having the wrong ESR, this is something I've never heard of until you mentioned it, so thank you very much for pointing it out. What should I look for exactly when buying replacement capacitors? Should I replace them with...Leave a comment:
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Dell Precision 490 motherboard
Hello
Around two years ago, I was given a Dell Precision 490 that wouldn't turn on. The problem was, like with most old Dells, the motherboard capacitors. As soon as I got it, we replaced its capacitors and I remember installing Windows XP and running Dell diagnostics. It passed all of the tests. I even remember playing some old games on it without any problems. After a week or so, I turned it off and put it in storage. It's been in storage until last week.
I decided to turn the computer on again and guess what, it beeps twice but there's no video. I've tried multiple... -
Re: New Members - please post your introductions here
I am a 20-year-old student and collect electronics, old computers specifically. I'm currently living in Malta, Europe and will hopefully be getting my degree in software development soon. I own several systems including Amstrads, Silicon Graphics stuff, Amigas, Macs, a ZX Spectrum (toastrack version) and many others.
I've always had a little bit of a soft spot for Dell's workstations until I got my first Fujitsu Siemens Celsius R610 with a Quadro FX 3000. I mean, I still like Dells but I hate that almost every...Leave a comment:
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