Hi everyone,

I have an ASUS P/I-P55TP4 Rev. 1.21 motherboard which is missing four electrolytic capacitors at positions CE1, CE2, CE3 and CE4, near the CPU socket / CPU power section.

The capacitors were already missing when I got the board, so unfortunately I don't know their original values.

I have another, later revision of the board where rather large capacitors (around 1000 µF) are used in the CPU area, but since the PCB revision and power circuitry are different, I don't want to assume that the same values were used on Rev. 1.21.

I've seen suggestions ranging from approximately 47–100 µF to much larger values, but so far I haven't found any reliable documentation confirming what ASUS originally installed at CE1–CE4.

Does anyone here own an ASUS P/I-P55TP4 Rev. 1.21 with these capacitors still present?

If so, I would greatly appreciate it if you could check the capacitance and voltage ratings of CE1, CE2, CE3 and CE4, or post a close-up photo of this area of the board.

I'm specifically interested in the original factory values, rather than an estimate of what would probably work electrically.

I will attach close-up photos of my board showing the four empty capacitor positions.

Thanks!