Quote from: nst6563 on May 19, 2014, 03:46:27 PM

Quote from: highwalker on May 19, 2014, 12:57:14 PM

Quote from: nst6563 on May 18, 2014, 08:47:35 PM

Quote from: chanberg on May 18, 2014, 08:22:52 PM

Quote from: nst6563 on May 18, 2014, 07:57:51 PM

Quote from: chanberg on May 18, 2014, 07:31:03 PM

what is the replacement part for this blown mosfet again?

Is it this one? http://www.ti.com/product/CSD17552Q5A

That's what I replaced mine with yes. It's close to the original specs, but not exactly. I tried a couple different ones from TI and they didn't work. The 2Q5A ended up working so I left it with that.

What happened for yours to look like that? I tried dual mining with a 47k voltmod...won't do that again.

Just regular scrypt mining on a 47k resistor mod.

Think I'm gonna get some small heatsinks and attach it on all my seeds.

The picture above is what I found on google matching my problem but this is what happened to mine

Wow...no pinched fan cables or anything? How long has that one been mining up until that happened? What type of power supply were you using? What's the ambient temp where it's mining?

Sorry for the questions, but I've got 6 that have the 49.9k/50k mod. 3 have been running non-stop 24x7 for 2 months, the other 3 have been running non-stop for about 3 weeks now. When I've modded them, I did add some small heatsinks to the mosfets because a little extra cooling never hurts when overclocking anything.

What heatsinks fit the mosfets? Can you share that please? It might be useful for lot of folks who have modded their gridseeds.

I have knocked off the thermal pads (bottom and top). Bottom I have used thermal paste and direct contact to the heatsink (insulated the troublesome areas), since anyways the ground-pour in the bottom is connected to the heatsink (via the brass nuts). On the top, I have added copper shims and thermal paste and direct heatsink. The copper shims were 15x15mm which I split into 4 (7.2x7.2) using my trusty Dremel. The heatsink on the top (non fan side) get slightly warm @1200 for the GS.

I think the copper shim works good in the way I have done, since the shims on top ensure a proper contact in the bottom...

I am using a 47k axial resistor mod.

EDIT: And before anyone tells me about the hazards of the silver thermal paste... this is CoolerMaster ThermalFusion 400 (Electrially Non-conductive, high thermal efficiency paste...) :-)

Well...I'm not sure of the exact dimensions of the heatsink....I'm sort of a collector of such things since you never know when or what you might need one for. I've saved them all from past motherboards. The one I used was an old northbridge heatsink. I can take some pics and measurements today and post those. The fins are MAYBE 2-3mm high. Taller can be used...maybe 4-5mm....so whatever you use in that location will need airflow to really be effective.

Do share the pics, mucho gracias!! I might also have some lying around and with the help of the Dremel, will fit some on the MOSFET's, which I believe really need the heatsinks with the mod.

BTW, whats the package size? Let me look up on Mouser as well...