[BannerGuy]

Massifr,

Welcome to TSG!!

The CAPS dont have to be leaking for them to be bad, the expanded and round top of the caps is a sign that they have gone bad... sorry.

[massifr]

Originally Posted by BannerGuy

... is a sign that they have gone bad... sorry.

I'm not sorry, because now I know the solution (replacing the caps).
Thanks.

I've contacted the person who sold me those NetVistas and he seemed to be aware of the capacitors' problem. Anyway he offered me to replace them at no charge.

The thing I'd like to know is: were the caps mounted by IBM to be faulty or is the motherboard's layout that make the caps go bad? In other words, am I going to experience the same problem some time after I'll have replaced them?

[iron4umx]

it's weird, I had computers, that had those capacitors like super leaking, and they still worked, bearly )

[iron4umx]

It would be temporaly if you don't put the proper ventilation, you know, net vistas shut of the fans automaticly, witch in my opinion is kind of krazzy, I WHANT MY FANS ON 24/7/365 YEAHHHHHHHHHHHHHH¡¡¡¡¡¡¡¡¡¡¡


UP THE FANS, LET THERE BE NOISE¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡

[massifr]

Originally Posted by iron4umx

It would be temporaly if you don't put the proper ventilation

So the caps go bad for the heat generated by the CPU.
In other words, the problem has not an electrical cause.
Is this right?

[BannerGuy]

Well you could look at it this way... most of these CPU's are about 4 years old, some less, some more... but it took 4 years for this issue to arise. Part of the issue seemed to be the quality of the product put on the board... This doesn't seem to be a consistant issue with all of them, just some of them. If you keep these PC's for 4 more years you *might* see this issue again, but by then they will be so outdated, why worry about it, you might be able to find anything that will run on them.

[jiml8]

Originally Posted by massifr

So the caps go bad for the heat generated by the CPU.
In other words, the problem has not an electrical cause.
Is this right?

This is not ordinarily correct. If the environment is hot enough to cause your electrolytics to fail, it is too hot period.

Electrolytics have been the bane of the electronics industry for years. Periodically a manufacturer (can be any of the manufacturers) puts out a bad batch that fail early, and a whole bunch of electronics (not just computers) are affected. There are many reasons why this happens, but I won't go into it.

Suffice it to say that changing the caps is more than likely a permanent repair. Unless, of course, you are unlucky enough to have purchased defective replacement caps. Which could happen.

[StumpedTechy]

were the caps mounted by IBM to be faulty or is the motherboard's layout that make the caps go bad? In other words, am I going to experience the same problem some time after I'll have replaced them?

Ugh I wish everyone on this thread would get their facts straight....

Read these links - http://www.geek.com/news/geeknews/20...0207018535.htm

and

http://www.badcaps.net/ more specifically - http://www.badcaps.net/causes/

There was a flawed electrolyte formula that has been passed all over the place and it has hit MANY motherboard manufacturers.

This is not just an IBM issue or a Dell issue this is all over.

As is with any large company thought they do have new trainees and whatnot that are just as clueles as the next person and have no CLUE about this.

I have had to replace many boards but the nice thing is I also know how to solder and buy capactiors. You can get the parts to fix the board yourself for about 10$ to 50$ if its out of warranty.

Also the second link I provided does board repairs AND sells the actual cap kits you need to fix your board.

[Feral]

Originally Posted by StumpedTechy

Ugh I wish everyone on this thread would get their facts straight....

Read these links - http://www.geek.com/news/geeknews/20...0207018535.htm

and

http://www.badcaps.net/ more specifically - http://www.badcaps.net/causes/

There was a flawed electrolyte formula that has been passed all over the place and it has hit MANY motherboard manufacturers.

This is not just an IBM issue or a Dell issue this is all over.

As is with any large company thought they do have new trainees and whatnot that are just as clueles as the next person and have no CLUE about this.

I have had to replace many boards but the nice thing is I also know how to solder and buy capactiors. You can get the parts to fix the board yourself for about 10$ to 50$ if its out of warranty.

Also the second link I provided does board repairs AND sells the actual cap kits you need to fix your board.

ahhh yup
the caps were a bad build you can tell these by the + on the Metal portion on the top.. all of the boards on this post that people are having problems with are from the same manufacturer

since my last post I have repaired quite a few..
as a precaution I replace ALL the caps on the boards with the same newer style which have a K on the tops
just because one or 2-4 go theres more then 4 on the board and just because there not blistered nor cracked doesn't mean there not bad I have a few caps that are perfectly normal looking that ARE actually bad upon opening one ( Wearing gloves) it was noted it was dry as a bone
as an Example I have scanned a customer trade-in board ( Customer dropped off the old board picked up a refurbished one that had all the caps replaced if you notice NONE of the caps are blistered or split but I do know the cap with the 4 dots and the surrounding are the ones that are causing the problems

and all you DIY peeps Caps cannot be tested Via a Multimeter even damaged caps yeild the same readings hence if I get one with those symptoms there all replaced who knows another one down the road can split or blister
There IS a Meter designed SPICIFCALLY for caps but they can be pricy depending on the model, complexity and manufacturer of it

this board will have all the caps replaced and will become a customer tradein

[Feral]

Originally Posted by iron4umx

It would be temporaly if you don't put the proper ventilation, you know, net vistas shut of the fans automaticly, witch in my opinion is kind of krazzy, I WHANT MY FANS ON 24/7/365 YEAHHHHHHHHHHHHHH¡¡¡¡¡¡¡¡¡¡¡


UP THE FANS, LET THERE BE NOISE¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡

you are in fact incorrect... caps go because the solution inside becomes unstable and produces a gas called hydrogen and they Burst, when they burst they will still work but ONLY until the Electrolyte inside Evaporates (Drys out.. when a system is becomming unstable it ususally means the caps are drying out or the electrolyte is eating the board and shorting it.. Electrolyte contains an acid which will damage the board and equipment.. they can be mounted ANYWHERE on the board in fact here is a motherboard with the same problem and its theres blown Caps Everywhere (This is a Lucky Star Slot one mobo ( Now I see why Lucky Star went bankrupt, cuz they used sub standard caps.. this board will be repaired and returned to its owner

aswell as if you use HIGH Quality Caps no mater where there located they will not go

as for the netvistas controlling the fans they do not.. I run one with no covers and the 3 fans are ALWAYS running... the only time I found a fan not running is because it was seized

[Fatdaddy144]

IBM has impressed, and I NEVER thought it would happen. With the information received via this fourm I went to the IBM website and opened 2 support requests and stated that I received information that the warranty was extened for the mainboard as the capacitor issue was a "Known Issue" they promptly called me back to verify the issue and shipping address. CASE CLOSED. Not bad for a unit I paid $2.00 for.

IBM NetVista Model: 6648

PIII 933Mhz

[~Candy~]

We must be coming up high in the Google searches

[drewlane]

Originally Posted by Fatdaddy144

IBM has impressed, and I NEVER thought it would happen. With the information received via this fourm I went to the IBM website and opened 2 support requests and stated that I received information that the warranty was extened for the mainboard as the capacitor issue was a "Known Issue" they promptly called me back to verify the issue and shipping address. CASE CLOSED. Not bad for a unit I paid $2.00 for.

Rats. I have the same problem with my Netvista 2254. I can see at least 4 caps around the cpu bulging/leaking and the computer is in a continuous reboot cycle.

I opened a service request and got a call back a few minutes later from IBM! I was impressed as this was Xmas eve!

However, they said the ECA had expired for my mobo.

What did you say exactly? I guess mine is a little older but I was hoping for a miracle.

[Krizze]

I got same reboot problem!
I have tested rams and powers...
Here pics my capacitors "warning big pictures": http://www.krizzen.net/photos/hardware/konkat/