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icon5.gif  Ailing Motherboard [message #299884] Mon, 29 October 2018 18:00 Go to next message
Kakugo is currently online  Kakugo   Italy
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(18) Geoff Duke
I suspect the motherboard on my home PC is not so well. think

Lately I started having serious connectivity issues, despite Windows telling me I have Internet access, and over the past few days I've had some really weird stuff happening, such as the PC shutting down when trying to diagnose a connection issue or Mr Kaspersky having troubles initializing.
As said, weird stuff which makes me lean towards a hardware issue.
Question is: as my HD's apppear to be sound can I just buy a new motherboard and processor, slap them on and pretend nothing happened?
Re: Ailing Motherboard [message #299889 is a reply to message #299884] Tue, 30 October 2018 21:08 Go to previous messageGo to next message
Kermit is currently offline  Kermit   United Kingdom
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(22) Giacomo Agostini
Probably yes if Windows 10 as that seems to adjust itself quite well to new hardware. If Windows 10 and you upgraded from Windows 7 or 8, then check that the activation is linked to your Microsoft account assuming thats what you login to Win10 with rather than local account

/forum/index.php?t=getfile&id=22362&private=0

With Windows 7/8, then ensure you have your license key eg license sticker or original DVD case. If you don't have that there's utilities available to reveal your key and save (or take a pic with mobile) for safe keeping. Windows 7 isn't quite as good at adjusting itself but if I was doing a mobo swap, I'd start by uninstalling all existing driver related programs from Programs and Features list (usually sound related & graphics drivers if you use onboard sound/graphics) before the final shutdown and mobo swap as that'll start you off with a cleaner setup with the new board.

With regards the current mobo, its usually the capacitors that start to go. Some more expensive board have more solid state type capacitors these days (flatter boxy shaped ones a bit like a 5mm chip). If yours are the more regular cylinder/can shaped ones you can do a quick check (with PC off) by putting a finger on top of each of them. If the top feels flat its usually ok. If it feels slightly convex then odds are they are failing and that may help you decide if its the mobo. They can be replaced if you reasonably handy with a soldering iron as quite big joints to de-solder & only 2 per capacitor but you'll need to ID the correct types and order them but should be <£3 of ebay or similar.

That said, it could equally well be your PSU thats failing as possibly for similar reasons (capacitors), if they start to wobble on the specific voltage/currents they have to deliver (1.5v, 3.3v, 5v and 12v) then that can reveal itself as sudden reboots and instability. PSU can possibly also be diagnoised if you care to take apart and check capacitors or for any other likely dry joints.

I've fixed a few PSU and mobos (& a TV) over the years with new capacitors as its virtually the only electronics repair thats possible these days for the layman

[Updated on: Tue, 30 October 2018 21:26]

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Re: Ailing Motherboard [message #299890 is a reply to message #299889] Tue, 30 October 2018 21:18 Go to previous messageGo to next message
Kermit is currently offline  Kermit   United Kingdom
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(22) Giacomo Agostini
Product key viewer (trusted site)

https://www.nirsoft.net/utils/product_cd_key_viewer.html

Make a note, photo or save keys to USB stick etc
Re: Ailing Motherboard [message #299893 is a reply to message #299884] Wed, 31 October 2018 08:42 Go to previous messageGo to next message
Kakugo is currently online  Kakugo   Italy
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(18) Geoff Duke
Thank you very much.

I was originally leaning towards a power supply unit because it wouldn't be the first time I had one starting to fail and this is the one that came with the case, meaning it was the cheapest they could find. Laugh
But this area is much subject to brownouts, and among the various issues I've had a mysterious unknown "PCI device" appear. Going by hardware ID it's an AMD IOMMU... not sure if this is related or not.
Ailing Motherboard (Solved) [message #300085 is a reply to message #299884] Sat, 22 December 2018 10:42 Go to previous messageGo to next message
Kakugo is currently online  Kakugo   Italy
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(18) Geoff Duke
After much (too much?) tinkering and testing, I've finally narrowed the problem down.
Like I first suspected it's the Power Supply Unit (PSU) starting to fail. It's four years old but apparently its lifespan has been shortened by brownouts and especially power fluctuations. It could have been worse as in "more expensive".

Any idea for a quiet power unit? That's all I ask for. No big power needs and that's the only thing to look for in these things.
Thanks.
Re: Ailing Motherboard (Solved) [message #300086 is a reply to message #300085] Sat, 22 December 2018 16:57 Go to previous messageGo to next message
Kermit is currently offline  Kermit   United Kingdom
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(22) Giacomo Agostini
Can't be specific as not had to buy a PSU for a few years now and models change but in the past I've tended to err towards Corair PSUs when building a PC with a reasonable balance between quality and cost.

I'm fairly sure most PC sites may well specify the db level but if not then they may well say quiet which unless there are reviews you'd have to take their word for it. I think the 80+ Bronze/Gold spec you'll see on many PSU's is in relation to converting the AC power to DC power with less heat, 80+ I think means 80% goes to DC power, less than 20% heat loss which is a good thing as the cooler it is, the slower the fan will spin.

If your not bothered with Modular connectors (where you only plug in the connectors your PC needs) then something like this looks good enough in my eyes

https://www.cclonline.com/product/245795/CP-9020172-UK/Power -Supplies/Corsair-VS550-VS-Series-650-Watt-ATX-Power-Supply- Unit/PSU1521/

this is better but hard to justify double the price

https://www.cclonline.com/product/257449/CP-9020178-UK/Power -Supplies/Corsair-RM650x-RMx-Series-650W-Fully-Modular-Power -Supply-Unit-80-PLUS-Gold-Certified-/PSU1591/

My guidline would be don't spend as little as £25-30, but probably anything over £70 is overkill unless you want to spoil yourself. £40-50 should get you something decent in the 500-650 watts range, 80+ rating and from a brand.
Re: Ailing Motherboard [message #300091 is a reply to message #299884] Mon, 24 December 2018 11:30 Go to previous messageGo to next message
Kakugo is currently online  Kakugo   Italy
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(18) Geoff Duke
Thank you very much.

Amazon has a 500W PSU by Thermaltake which is Bronze rated and has a LED in the back that changes color! eek

I am sold on the last feature, which I deem completely superior to the excellent reviews this brand gets. Laugh

[Updated on: Mon, 24 December 2018 11:31]

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Re: Ailing Motherboard [message #300093 is a reply to message #300091] Mon, 24 December 2018 15:40 Go to previous messageGo to next message
Yorkie is currently offline  Yorkie   United Kingdom
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(8) Moto2 GP Racer
Oh yes.

I know absolutely nothing about motherboards other than that the changing colour LED is an essential part. Especially at Christmas Laugh
Re: Ailing Motherboard [message #300096 is a reply to message #300093] Mon, 24 December 2018 17:17 Go to previous message
Kermit is currently offline  Kermit   United Kingdom
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(22) Giacomo Agostini
I had a phase of liking glowing this and that in my previous PCs but got over it and went the oppostite way in with small form factor and wanting my PC to be seen and heard as little as possible.

But there's a place for everything and if LED takes your fancy, then go for it as Thermaltake is a fairly well trusted brand when it comes to Fans and cooling and expect now they do PSU's they'll not be wanting to tarnish that reputation with inferior PSUs Thumbs Up

[Updated on: Mon, 24 December 2018 17:20]

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