The indestructable Compaq SR5000 - Full poly-mod

[c_hegge]

I've seen LOTS of these motherboards from Compaq Presario SR5000 PCs fail thanks to the Terrible Kapacitors they come with. I've recapped sever al electrolytics with polies in the VRM, but this time around I decided to give it a FULL Poly mod.

I went with 820uF 2.5v polys on the VRM-out, 470uF 16V on the VRM in. The few 1800uF 16v caps near the PCI-E and DIMM slots were replaced by 1500uF 6.3v polys. For the other caps (the 1000uF 6.3v OSTs and the 16v 470uF G-Luxons) I kept the capacitance the same. Only trouble is, though, that the lytics were 8mm dia and the polys are 10mm, so it was a tight squeeze in some places.

The stress testing passed with flying colours. 4 days in total between memtest and prime95 without incident.

[Pyr0Beast]

Re: The indestructable Compaq SR5000 - Full poly-mod

Poly for USB isn't exactly needed ?

[gerg]

Re: The indestructable Compaq SR5000 - Full poly-mod

If you are going to go, go all out is what I think

[c_hegge]

Re: The indestructable Compaq SR5000 - Full poly-mod

Poly for USB isn't exactly needed ?

But then it wouldn't be a FULL poly mod.

[Pyr0Beast]

Re: The indestructable Compaq SR5000 - Full poly-mod

But then it wouldn't be a FULL poly mod.

He missed a couple of caps that way already.

[c_hegge]

Re: The indestructable Compaq SR5000 - Full poly-mod

do you mean those little tiny ones without vent stamps? Those rarely fail (and thus rarely need polymodding)

[Th3_uN1Qu3]

Re: The indestructable Compaq SR5000 - Full poly-mod

I see a nvidia chipset... i think that'll make it a bit less indestructible.

[Pyr0Beast]

Re: The indestructable Compaq SR5000 - Full poly-mod

do you mean those little tiny ones without vent stamps? Those rarely fail (and thus rarely need polymodding)

yes

They fail without any sign of failure

[c_hegge]

Re: The indestructable Compaq SR5000 - Full poly-mod

@Th3_Un1qu3, that's why I added the fan, that way it won't get very hot when running. I do that to all boards with nvidia chipsets.

[kc8adu]

Re: The indestructable Compaq SR5000 - Full poly-mod

it will last a bit longer but its doomed anyway.
i see far more of these boards with dead nvidia chips than caps.you can reflow them properly and about 50% will run again.not sure how long they will go afterwards.

@Th3_Un1qu3, that's why I added the fan, that way it won't get very hot when running. I do that to all boards with nvidia chipsets.

[lti]

Re: The indestructable Compaq SR5000 - Full poly-mod

Based on my past experience with anything Compaq branded, I wouldn't have spent the time and money to repair the board. Every Compaq I've ever seen used the cheapest hardware they could possibly find. Something else on the board would have failed, even if it didn't have a defective chipset, so you would have ended up buying a new board anyway.