Yes I already tried that, see earlier post with the diagram of the motherboard
Try Installing into an external powered USB 3.0 container perhaps? Requires a purchase of powered caddy.
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Already tried a USB enclosure to check that the drive was working (see original post).
I did fit this firewire card a year ago…
https://www.startech.com/en-gb/cards-adapters/pex1394b3
It might have been shortly after that when I started having issues with the 4TB drive which eventually failed 6 months ago.
I dont need the firewire card anymore so removed it and so far the 6TB drive is behaving.
It could just be a coincidence, because I expect the firewire card would draw very little power so I would be suprised if this was the cause.
I have contacted the supplier who has agreed to exchange the 6TB drive, but as its currenlty working Im not sure what to do.
As for trying another PSU, I dont have access to any other PSU so would have to buy one.
But it seems that Dell dont use a standard size PSU so there is very little choice.
If someone could recommend a suitable PSU then I would consider upgrading it from the existing 290W PSU.
It depends on the case, you could mount a ‘normal’ psu if there is enough room in the case and there is an adapter from 8-pin power to 24-pin power cable. https://www.ebay.com/itm/127029613844 I dont know where you can find it in France.
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That being the case, then you have identified an incompatibility regarding “bus presence” or “signal recognition conflict” …
or …
however small it might be, the power draw by the firewire pushed the voltage levels below the minimum threshold at which the device’s internal logic triggered shut down, out of self-preservation to protect the circuitry.
It is possible that the device was less tolerant than the other drives (variations within manufacturing tolerances), which is why only that drive was impacted.
Switching out the drive could give you a drive that was either more, or less, tolerant than the one you currently have, so it’s all a matter of living with “the devil that you know” type of situation.
Just glad to hear that you seem to be past the hump.
Form Factor: Mini Tower (MT)
That would imply a standard “profile” for PSU.
So … if you can identify the Make & Model of the existing PSU which is in your chassis, you can do a lookup for an “upscaled” replacement.
Looking at online info, you have the following reference:
Apparently, there is a Dell 360W PSU that would supposedly be a direct swap-out, but maybe check with those 3rd-party suppliers or with Dell directly.
Just be sure that they confirm at least the same number of connectors for the various PSU output cables.
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Apparently the Dell T30 uses a AC290EM-01 290W PSU
Dell ONFX6T proprietary 290W PSU (175 mm x 36 mm x 454 mm) with an 4-pin and 8-pin ATX power connectors.