April 24th, 2022, 21:28
April 25th, 2022, 3:50
April 25th, 2022, 13:49
April 26th, 2022, 0:28
April 26th, 2022, 0:49
Lardman wrote:Q1. You would also need to swap the ROM IC's.
Q2. It's likely you have blown the power protection probably the 5v rail, with luck that's all.
Q3.You're going to need a multimeter and soldering equipment, ideally a hot air station.
fzabkar has made several posts detailing efuse use http://www.hddoracle.com/viewtopic.php?f=100&t=1615&p=8872#p8872 for an explanation far better than any I will give.
April 26th, 2022, 0:50
grevan wrote:Just curious, what is that big white smd component on the top left? Looks like a fuse.
April 26th, 2022, 0:59
April 26th, 2022, 1:04
fzabkar wrote:The white, angled component is a shock sensor.
The other ICs I have identified are e-fuses. Examine the datasheets, identify the Vin and Vout pins, and then measure the voltages at these pins. You should see 5V and 12V at the inputs and also at the outputs. If Vout is missing, then either the e-fuse has failed, or the output of the fuse is overloaded. To confirm that there is no overload, measure the resistance between ground (a screw hole ) and Vout. If there is no short at Vout, then you can bridge Vin and Vout with a wire or blob of solder.
That other thread at Tom's Hardware is more detailed. It tests the regulators as well.
April 26th, 2022, 1:15
April 26th, 2022, 3:20
If you're just recovering data bridging them is .... adequate. If you intend to put them back into service or sell them on at a later date, I would strongly suggest you replace them to give some other modular PSU owner a fighting chance.sting11165 wrote:Oh, got it, I don't need to replace the parts, I can just bridge them if they are blown.
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