Which brand and type?

[Gianni]

I have repaired a Pavilion, the owner gave it to me after a shop told him there was nothing to do... the PC is dead.

Well the PSU has some Fuhjyyu completely ruined (all were bulged) a 3 Teapo, here what I have measured on them:

1000uF 10V Fuhjyyu --> 1.4uF 139Ohm
3300uF 10V Fuhjyyu --> 20uF 8.5Ohm
3300uF 10V Fuhjyyu --> 16.7uF 8.6Ohm
3300uF 10V Fuhjyyu --> 18.7uF 8.8Ohm
2200uF 16V Teapo --> 1695uF 45mOhm
470uF 25V Teapo --> 394uF 153mOhm
47uF 50V Teapo --> 39uF 880 mOhm

Unfortunately I forget to take some PSU pics and because I'm lazy I don't want to open it now; anyway it looks better than Allied or Linkword unit.

After replacing them the PC started but WinXP was messed up so i had to reinstall it.
Now the PC is working correctly, the Athlon 1.4GHZ run without problems the only limit is that I could install only 256MB Ram (2 X 128MB).
I had to replace also the CD Writer.

This is the first time I see a board with such kind of VRM: it is a separate board soldered near CPU. I would like to know what brand and type are the yellow caps on it. I hope someone here have already seen them.
From top is not possible to see any text or logo and I don't want to disassemble the PC just to check.
It is nice to see Rubycon ZL near the CPU.

Ciao
Gianni

P.S.: 2 Fuhjyyu were hidden with heat shrink tubing... like they were hiding shit...

[willawake]

Re: Which brand and type?

those fujitsu

[jpdoe]

Re: Which brand and type?

I've only seen one motherboard with the VRM on a daughterboard. It was an Asus. It had the same yellow caps on it.

[Gianni]

Re: Which brand and type?

Thanks Willa.

@ jpdoe: Everest recognizes this board as Asus A7V-ML but I have not seen any label on it.

Ciao
Gianni

[willawake]

Re: Which brand and type?

i think you leave yellow caps unless problem

[Gianni]

Re: Which brand and type?

Yes Willa, the PC seems stable without problem, I'm not going to change anything on the MOBO. It is not very fast, I think some more Ram would help.
For what I have seen, the only problem was the PSU with crap caps.

As the owner doesn't want it back, I will keep it as spare PC or I donate it to my son's school.

Ciao
Gianni

[zandrax]

Re: Which brand and type?

The psu is a Fortron: I know Fortron uses Teapos and OSTs, but I never heard of employing Fuhjyyus. What a shame

Zandrax

[Gianni]

Re: Which brand and type?

Sorry to resume such old thread but yesterday this PC has stopped to work: when it boots on the screen you can see it detecting the HD and CD drive but the OS doesn't start.
If I enter in set-up mode pressing F1, in the BIOS I can't see the HD or CD.
I tried to boot from CD but there's nothing to do.

What do you think? It's time to trash it or I can try to repair?
I have reset the BIOS, I have tried with another good PSU but nothing change, sometimes it says OS missing, sometimes it stays with blinking cursor.

Any suggestion is appreciated
Gianni

[brethin]

Re: Which brand and type?

Caps on the MB finally failed is my guess. You recapped the PSU but not the MB.

[momaka]

Re: Which brand and type?

Check the RAM.
Go in BIOS and set Power On Self Test (POST) to Normal instead of Quick, then Save and reboot. If there's an error with one of the RAM modules, it should appear on the POST screen. If not, swap out the RAM and test again.

[Gianni]

Re: Which brand and type?

@ brethin: you are right, i didn't touch the caps on MOBO because they were good brand and type so I thought it was not necessary to replace them.

@ momaka: I did the test you suggested but I had not error messages.
The problem is the during post it shows the check list and you can see it detecting the HD and CD/DVD drive, but when you enter in the BIOS you see on IDE device the label NONE like nothing is connected.

I have finish with few more test: I have replaced the BIOS battery and cleared CMOS, I have replaced the PSU and I have attached an HD I use for test and the results are not reliable.
Sometimes after BOOT it stays with blanking cursor, sometimes it boots from CD but never tries to boot from HD.
I tried to check it with Hirene's BootCD, the few times it boots from CD, but I'm not able to use any tool.

The BAD news is that both HD that were inside are DEAD, the Samsung SV2042H 20GB goes on clicking, like the head tries to move, the Maxtor Diamond Plus 8 30GB not even spin up.

I think it is not worth to try to replace caps on this MOBO, I have not a great experience like some other members, but the few MOBO I have repaired didn't gave me such kind of problems and even replacing the caps I can't rely on a MOBO that killed two HD.
Moreover I don't know if something else is damaged, I have not another MOBO to check the Processor.

The BAD BAD thing is that I'm afraid the owner didn't make back-up on CD/ DVD/External HD of personal files... even if I always suggest to do it.

Last thing: I tried to find infos about the MOBO but I find nothing, just to understand if it is a problematic one.

Ciao
Gianni

[kc8adu]

Re: Which brand and type?

more likely the hdd's died of old age or from the old psu.

[Gianni]

Re: Which brand and type?

So kc8adu in your opinion it is worth to replace all caps and see if the MOBO works correctly?

I don't like to trash something that could be repaired but with an Athlon 1.4GHz and 512MB SDRAM 100MHz this PC it is a little bit slow with XP that's why I don't know if it is worth to work on it.

Ciao
Gianni

[MegaOne302]

Re: Which brand and type?

Keep the case, memory, drives, and maybe the CPU. I vote to trash the rest; it's a very old PC.

[momaka]

Re: Which brand and type?

The BAD news is that both HD that were inside are DEAD, the Samsung SV2042H 20GB goes on clicking, like the head tries to move, the Maxtor Diamond Plus 8 30GB not even spin up.

Are the jumper settings on the hard drive you inserted correct? Are the boot settings in the BIOS correct as well? Most importantly, have you tried changing the IDE cables?

So kc8adu in your opinion it is worth to replace all caps and see if the MOBO works correctly?

Doubt the motherboard caps are bad. The yellow caps are Fujitsu FPCAP (functional polymer) if I'm not mistaken. Unlikely to be bad. Given that the other caps are also of reliable brands and that this is not one of those cap oven PCs (such as some of the Dell SFF PCs), the electrolytic caps should be fine.

I don't like to trash something that could be repaired but with an Athlon 1.4GHz and 512MB SDRAM 100MHz this PC it is a little bit slow with XP that's why I don't know if it is worth to work on it.

Shouldn't be that slow - at least not for email, basic web surfing, and other office-related tasks (unless of course you have anti-virus bloatware and other unnecessary security software). I just had someone come last week with an old Athlon 1GHz PC with 256MB of RAM. Thanks to Trend Micro Internet Security, the PC was absolutely useless because it was running out of RAM as soon as Windows XP started. All I did was remove that (and a few other unnecessary processes), and the computer was running like new.

[retiredcaps]

Re: Which brand and type?

Thanks to Trend Micro Internet Security, the PC was absolutely useless. All I did was remove that (and a few other unnecessary processes), and the computer was running like new.

I just started using Panda Cloud AV. Smaller RAM usage compared to traditional AV.

Anyone try Immunet cloud AV?

[TheLaw]

Re: Which brand and type?

To be honest, Fuhjyyus are amongst the only brands I know that have yellow caps...But those look like OSTs. Could be wrong.

[Agent24]

Re: Which brand and type?

Did you verify good operation of the PSU after recapping? Perhaps it was faulty beyond the bad capacitors and killed everything else.

[Gianni]

Re: Which brand and type?

Hi all,thanks for all suggestions.

3 days ago I worked on this PC, I reconnected the recapped PSU, an old HD and CD Drive; I turned it on and it started asking for the OS.
I reinstalled XP, I updated it and added some programs.
I had not a single problem and even with Memtest after 6 hours
I had not errors.
Well I have not explanation... probably I can doubt about my technical skill about repairing PC but I tested the PC in December and it was not possible to turn it on correctly not even using a boot CD.
Now I keep it as spare PC, I have already given another PC to the owner of this one.

Some answers:

@ momaka: the jumper on HD were corrected, I tested the HD outside the PC, I have bought a kit to power HD and connect them to USB. I replaced the IDE cable 3 days ago because the old one was a little bit ruined, probably it has been mashed against the case.
As you wrote this PC is not so slow for normal use but when you gave it to people that install a lot of useless things like toolbar and so on it becomes very slow; moreover I discovered it is not possible to install Silverlight because the processor does not support SSE instruction so it is not possible to watch some video on a lot of pages.

@ TheLaw : I could not watch the brand of yellow caps but the top shows a k vent and I doubt it is used by OST, so I think willawake and nomaka are right, those are Fujitsu caps.

Agent24 : I tested teh PSU on the same PC, I have no other method and this PC has worked correctly for over one year. I usually run some test on a recapped PC with a recapped PSU and if I have not errors I think everything is ok.

Ciao
Gianni

[TheLaw]

Re: Which brand and type?

Hi all,thanks for all suggestions.

3 days ago I worked on this PC, I reconnected the recapped PSU, an old HD and CD Drive; I turned it on and it started asking for the OS.
I reinstalled XP, I updated it and added some programs.
I had not a single problem and even with Memtest after 6 hours
I had not errors.
Well I have not explanation... probably I can doubt about my technical skill about repairing PC but I tested the PC in December and it was not possible to turn it on correctly not even using a boot CD.
Now I keep it as spare PC, I have already given another PC to the owner of this one.

Some answers:

@ momaka: the jumper on HD were corrected, I tested the HD outside the PC, I have bought a kit to power HD and connect them to USB. I replaced the IDE cable 3 days ago because the old one was a little bit ruined, probably it has been mashed against the case.
As you wrote this PC is not so slow for normal use but when you gave it to people that install a lot of useless things like toolbar and so on it becomes very slow; moreover I discovered it is not possible to install Silverlight because the processor does not support SSE instruction so it is not possible to watch some video on a lot of pages.

@ TheLaw : I could not watch the brand of yellow caps but the top shows a k vent and I doubt it is used by OST, so I think willawake and nomaka are right, those are Fujitsu caps.

Agent24 : I tested teh PSU on the same PC, I have no other method and this PC has worked correctly for over one year. I usually run some test on a recapped PC with a recapped PSU and if I have not errors I think everything is ok.

Ciao
Gianni

Ooops, didn't even bother to look at the vents. In that case, it would be something else...and if others say Fujistu, then I guess that's what it is. =p