I bought this desktop from a local scrapper in my country with this DFI PM12-TC motherboard in it. It came with Willamatte P4 1.8. Considered a bargain since the HDD that came off this desktop was working and the CPU as well. When I pop the case to have a look inside, i found 2 X 6.3V TAEPO 1800uf was bloated (one already bung from the bottom) and 3 X 6.3V TAEPO 1000uf bloated as well.
I pop in some RAM, with the CPU that come with it and attempt to turn on the board and it beep and works on 1st start, without recapping or whatever, because i am deciding weather the board worth fixing. Once i done installing Windows XP, all the drivers loaded up just fine. Except it is having some issue with the onboard display, in the device manager it isn't showing any error and the device is working properly. But it was making my display fuzzy, most noticeable when there are CPU activity (stress test) and graphics activity (moving cursor and windows). But when i was using an AGP graphics card, the fuzzy was gone. And by disabling the display adapter from device manager also remove the fuzzy. So i consider it as onboard IGP issue.
I uploaded a video of it to Youtube :
https://www.youtube.com/watch?v=1Cxv...ature=youtu.be
Firstly i recap the 3 X 6.3V 1000uf TAEPO that was bulging with 3 x OST cap (same rating), i know those are terrible cap as well, but that is what i got in hand at the moment. Turn it on, and it was still the same. Then i recap the remaining 2 x 6.3V 1000uf TAEPO (total there are 5, but 3 was bulging) with those OST i use earlier, since those are same TAEPO cap, they might be faulty as well. Still the same, prob remain unfix.
Next, i recap the 2 x 6.3V TAEPO 1800uf with 2 x Nichicon HN(M) 6.3V 2200uf, but that doesn't solve the fuzzy display either.
Here is a pic with my board together with the location of bad cap:
YELLOW is the 3 X bulging 6.3V 1000uf TAEPO
GREEN is the 2 X good looking 6.3V 1000uf TAEPO
RED is the 2 X bulging 6.3V 1800uf TAEPO
Here the badcap :
The conclusion is, should I just try a reflow with the VIA chipset ? Or replace all the caps, which i might do i later because i already run out of caps.
I pop in some RAM, with the CPU that come with it and attempt to turn on the board and it beep and works on 1st start, without recapping or whatever, because i am deciding weather the board worth fixing. Once i done installing Windows XP, all the drivers loaded up just fine. Except it is having some issue with the onboard display, in the device manager it isn't showing any error and the device is working properly. But it was making my display fuzzy, most noticeable when there are CPU activity (stress test) and graphics activity (moving cursor and windows). But when i was using an AGP graphics card, the fuzzy was gone. And by disabling the display adapter from device manager also remove the fuzzy. So i consider it as onboard IGP issue.
I uploaded a video of it to Youtube :
https://www.youtube.com/watch?v=1Cxv...ature=youtu.be
Firstly i recap the 3 X 6.3V 1000uf TAEPO that was bulging with 3 x OST cap (same rating), i know those are terrible cap as well, but that is what i got in hand at the moment. Turn it on, and it was still the same. Then i recap the remaining 2 x 6.3V 1000uf TAEPO (total there are 5, but 3 was bulging) with those OST i use earlier, since those are same TAEPO cap, they might be faulty as well. Still the same, prob remain unfix.
Next, i recap the 2 x 6.3V TAEPO 1800uf with 2 x Nichicon HN(M) 6.3V 2200uf, but that doesn't solve the fuzzy display either.
Here is a pic with my board together with the location of bad cap:
YELLOW is the 3 X bulging 6.3V 1000uf TAEPO
GREEN is the 2 X good looking 6.3V 1000uf TAEPO
RED is the 2 X bulging 6.3V 1800uf TAEPO
Here the badcap :
The conclusion is, should I just try a reflow with the VIA chipset ? Or replace all the caps, which i might do i later because i already run out of caps.
Attached Files
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