Biostar GeForce 6100-M9

[Pentium4]

So, yeah the CPU caps on this Biostar motherboard failed hard...ALL of them. It was used daily from December, 2007 to July, 2011. All the caps on the mobo are KZG. I heard that these caps tend to die after around 3 years?


I figured it might have been the power supply, considering it's a PowerMan 350W PSU with an old group regulated design with OST caps on the Primary and Secondary. I don't think it was the PSU though cause none of the caps are bulging or leaking and the PCB doesn't look burnt anywhere.



EDIT: I was wrong, besides the 5 KZG's that failed, there are 3 that didn't fail. And concerning the rest of the motherboard, the rest of them are OST's and they're all black. From what I have heard, OST's are mediocre but not TERRIBLE. I haven't had any OST's die on me but then again they seem to be very popular with the cheaper companies.

[dood]

Re: Biostar GeForce 6100-M9

KZG are bad caps from a good manufacturer. They just got that line... wrong.

Your power supply might not have caused it, but I always like to see something a little more... beefy.

[Pentium4]

Re: Biostar GeForce 6100-M9

KZG are bad caps from a good manufacturer. They just got that line... wrong.

Your power supply might not have caused it, but I always like to see something a little more... beefy.

Yeah, this is from a friend's computer, I wouldn't run one of my computers on that wimpy thing BUT...Even with that dinky PSU, it only had to power an Athlon 64 3500+ (939), 3 sticks of RAM, and a single hard drive....No graphics card, it probably rarely peaked at 100W, so I guess the KZG's are to blame...If I were to replace them (never done it before ) would it be worth it?

[c_hegge]

Re: Biostar GeForce 6100-M9

I wouldn't worry about the PSU. In Win power men are good performers. It may not look beefy, but that would - probably - do 400W or even more with the ripple and voltages in spec. I reviewed a 400W In Win Power Man (PM me if you want a link) and I actually got 500W out of it. The ripple was a tad high but I've seen worse.

[Pentium4]

Re: Biostar GeForce 6100-M9

I wouldn't worry about the PSU. In Win power men are good performers. It may not look beefy, but that would - probably - do 400W or even more with the ripple and voltages in spec. I reviewed a 400W In Win Power Man (PM me if you want a link) and I actually got 500W out of it. The ripple was a tad high but I've seen worse.

Really? Yeah please send me a link cause I honestly don't think this thing could do over 350W. It has a -5V which means it's ancient and it has 18A on the 12V. I have a 300W Bestec (Which is only decent) that has 19A on the 12V and with NCC Primary caps (OST for secondary)

[370forlife]

Re: Biostar GeForce 6100-M9

In Win designs most of their units, and they are competent. This is a single transistor forward, not really much that it needs to perform well.

[goodpsusearch]

Re: Biostar GeForce 6100-M9

But they can fail. I have seen Inwin Powerman with bulging Primary Capacitor (probably killed by apfc)

[c_hegge]

Re: Biostar GeForce 6100-M9

This one lacks PFC. It's just a standard single transistor forward. It also looks like it uses a PWM IC for the 5vsb (like the one I reviewed), rather than the two-transistor design.

[Pentium4]

Re: Biostar GeForce 6100-M9

Can someone help me find some Rubycon or Panasonic caps to replace these???

[brethin]

Re: Biostar GeForce 6100-M9

I would replace all the KZG with https://www.badcaps.net/store/produc...roducts_id=142

[Pentium4]

Re: Biostar GeForce 6100-M9

Thank you!!!

[bp1]

Re: Biostar GeForce 6100-M9

I think caps failing on the Biostar 6100-M9 is quite common. From memeory the 5 caps 3300uf near the cpu is common to go bad. I did a re-cap to one sometime ago.
Some useful info here http://www.punj.co.uk/punjwebfiles/e.../mbbadcap.html