Asus ptgd1-la

[enduser]

A customer of mine just brought me his PC with a blown PS. I verified the PS is bad plus I found a single blown cap on the mobo. It is CE51. It is hard to make out the logo since the color combination is hard to read. It appears to be made by Ltec? Litec? or some thing similar. Anyways the cap is rated at 820uF 6.3vdc

CE52 is also made by the same manufacturer but it is not blown.

[c_hegge]

Re: Asus ptgd1-la

Can we have a picture of the board? The brand is probably LTEC. The people behind that company are seriously Lacking in Technical Engineering Capabilities In other words, they are unreliable.

[enduser]

Re: Asus ptgd1-la

Right on c_hegge, I just removed the cap from the board and with closer inspection under the lighted magnifying glass I was able to confirm that it is a LTEC crap. It is rated at 820uF 6.3vdc. Other markings on it are: LMB105, 3D01D.

[Toasty]

Re: Asus ptgd1-la

LTEC - LMB series - 820uF @ 6.3v - 8x11.5mm - 1250mA ripple - 0.034Ω ESR

http://www.ltec.com.tw/product_e.htm

Photos please. All Ltec caps should be replaced. Probably some OST caps on there too. Any with the score marks on the top are up for consideration.

Toast

[enduser]

Re: Asus ptgd1-la

Confirmed that replacing CE51, and CE52 fixes the board. I also found that the power supply had failed, and that one of the memory sticks was also bad.

After I replaced the blown cap and the other of the same type for good measure, I powered up the board, the PS LED would blink ON/OFF but the board would not power up. I then replaced the PS and the board would power up with all the fans running at full speed but still no POST. I next removed all 3 of the 512 MB memory sticks that were installed on the motherboard. I then installed only one memory stick at a time and tried to POST until I was able to identify the bad memory stick. This board turned out to be quite a challenge, but now all is good. Below is a picture of the bad Ltec cap, not the best picture since I have crappy camera that was given to me.