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craptop died with hard drive, but works with SSD



 
 
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  #1  
Old January 4th 20, 06:08 AM posted to alt.comp.hardware.pc-homebuilt
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Default craptop died with hard drive, but works with SSD

I had a laptop working fine one day, then next it does not boot.
The drive shows up in BIOS, but a disc diagnostic on CD cannot see it.
Not many SATA options in BIOS, just a choice of performance or power
saving mode.
I put the hard drive into a desktop, and it booted and danced with white
doves in the flowers and lived happily ever after.
I put another hard drive into laptop, and same problem - diagnostics
cannot detect it. But then put an SSD into the laptop, and I was able to
install linux on it, no worries. Weird - maybe the power to the drive
socket is marginal? Unfortunately no spare connectors, as with a desktop.

  #2  
Old January 4th 20, 09:22 AM posted to alt.comp.hardware.pc-homebuilt
Paul[_28_]
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Posts: 1,467
Default craptop died with hard drive, but works with SSD

wrote:
I had a laptop working fine one day, then next it does not boot.
The drive shows up in BIOS, but a disc diagnostic on CD cannot see it.
Not many SATA options in BIOS, just a choice of performance or power
saving mode.
I put the hard drive into a desktop, and it booted and danced with white
doves in the flowers and lived happily ever after.
I put another hard drive into laptop, and same problem - diagnostics
cannot detect it. But then put an SSD into the laptop, and I was able to
install linux on it, no worries. Weird - maybe the power to the drive
socket is marginal? Unfortunately no spare connectors, as with a desktop.


The only option, is some laptops with DVD drives, you can
pull the slim optical drive and replace it with a hard drive holder.
It has the connector on the edge, suited to plugging into
the DVD hole and connector.

But not all brands have that. My laptop wouldn't have that
as a spare part.

If the connector was fused, I could understand this.
But I doubt that it is. Nor should it be. There are
tons of things that could have protective fusing that
don't. (This is why the fan headers on desktop
motherboards die - no protective fuse.)

The battery is something like 14.4 volts. All the lower
voltages have to be derived from that. While some items
run off the 5V (maybe your charging Apple iPad is
sucking down the juice), I wouldn't expect a weak
switching power converter to be the root cause.
There would be a 14.4V to 5V converter in there
(likely a "buck" converter).

The drive should draw 5V @ 1 amp at spinup.

Some Kingston SSDs (with SandForce compressing controller),
have peak power of 7W, or 5V @ 1.4A. But they don't
stay at that power level forever. Maybe a Samsung would
be 3.5W (still less than the HDD spinup current). When the
Sammy isn't doing anything, the power could drop quite low.

Paul
 




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