F5F Stay Refreshed Hardware Desktop Disks visible in BIOS but not anywhere else

Disks visible in BIOS but not anywhere else

Disks visible in BIOS but not anywhere else

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Peaches181
Member
58
04-23-2026, 12:33 PM
#1
I recently upgraded my pc (HP Pavilion 590-p0063na) with a new 500W PSU (L05757-800) and gpu RX 6600 XT. Last PSU was 180W. The main issue is that I can't boot to windows and both my 1 TB HDD and 1TB SSD are not working anymore. More specifically, when plugged into a 2nd working pc, neither is recognised as a disk and when I tried to use Media Creation Tool to reinstall windows, it couldn't find a working disk. However, UEFI BIOS is able to see both, and quick diagnostics report them as PASSED. PC has been going into Auto repair mode for maybe 2 years, but it always gave me the option to boot into widnows (which it doesn't anymore). After the new PSU install, it was fine at first boot, but then after a couple times went into a black disc repair screen. The first one took a minute or two and booted fine, even tests of the discs were good (samsung magician and CrystalDiskMark), no abnormalities. However, the second repair screen was the last time I saw my windows screen. It took an hour and shut off the pc. After that, the second pc wasn't able to see the discs anymore. I have since tried to use my old PSU with no success. I am not sure if the new PSU kill the discs with the higher wattage (though the hdd does still spin and vibrate when connected, for what it's worth). Are the discs gone forever with my data, or does the fact that they are still recognised by bios and pass tests mean there's hope? Would sincerely appreciate any help as I have been stuck with a dead pc for a number of days now, not knowing what else to try.
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Peaches181
04-23-2026, 12:33 PM #1

I recently upgraded my pc (HP Pavilion 590-p0063na) with a new 500W PSU (L05757-800) and gpu RX 6600 XT. Last PSU was 180W. The main issue is that I can't boot to windows and both my 1 TB HDD and 1TB SSD are not working anymore. More specifically, when plugged into a 2nd working pc, neither is recognised as a disk and when I tried to use Media Creation Tool to reinstall windows, it couldn't find a working disk. However, UEFI BIOS is able to see both, and quick diagnostics report them as PASSED. PC has been going into Auto repair mode for maybe 2 years, but it always gave me the option to boot into widnows (which it doesn't anymore). After the new PSU install, it was fine at first boot, but then after a couple times went into a black disc repair screen. The first one took a minute or two and booted fine, even tests of the discs were good (samsung magician and CrystalDiskMark), no abnormalities. However, the second repair screen was the last time I saw my windows screen. It took an hour and shut off the pc. After that, the second pc wasn't able to see the discs anymore. I have since tried to use my old PSU with no success. I am not sure if the new PSU kill the discs with the higher wattage (though the hdd does still spin and vibrate when connected, for what it's worth). Are the discs gone forever with my data, or does the fact that they are still recognised by bios and pass tests mean there's hope? Would sincerely appreciate any help as I have been stuck with a dead pc for a number of days now, not knowing what else to try.

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melina455
Junior Member
21
04-24-2026, 09:42 PM
#2
How much space do those SSDs and HDDs have? Can't find them on the Device Manager screen, right?
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melina455
04-24-2026, 09:42 PM #2

How much space do those SSDs and HDDs have? Can't find them on the Device Manager screen, right?

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lxjohnnyxl1
Junior Member
6
04-24-2026, 10:23 PM
#3
SSD might have been about 70 percent, and HDD probably around 50 percent. Neither one is completely full yet. The programs don't appear in the device or disk manager. I looked inside all the tabs of the Device Manager and still found nothing there.
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lxjohnnyxl1
04-24-2026, 10:23 PM #3

SSD might have been about 70 percent, and HDD probably around 50 percent. Neither one is completely full yet. The programs don't appear in the device or disk manager. I looked inside all the tabs of the Device Manager and still found nothing there.

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Wapr
Member
56
04-25-2026, 12:15 PM
#4
How does my hard drive get its electricity? Does it come from my computer board, or is it plugged straight into my power supply unit?
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Wapr
04-25-2026, 12:15 PM #4

How does my hard drive get its electricity? Does it come from my computer board, or is it plugged straight into my power supply unit?

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miknes123
Senior Member
646
05-01-2026, 06:05 PM
#5
If you have a motherboard with two 4-pin power connections and one 7-pin socket on your power supply, it might actually help.
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miknes123
05-01-2026, 06:05 PM #5

If you have a motherboard with two 4-pin power connections and one 7-pin socket on your power supply, it might actually help.

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katlynNugget
Junior Member
13
05-01-2026, 06:13 PM
#6
If you have extra 4-pin plugs on your power supply for the drives (like ssds or hard drives), plug those in directly instead of using them through the motherboard. Sata cables connect the drive straight to the computer, but electricity needs to come from the power supply unit first, not go back up to the board to reach the cable. Otherwise, you might run out of power or get too little.
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katlynNugget
05-01-2026, 06:13 PM #6

If you have extra 4-pin plugs on your power supply for the drives (like ssds or hard drives), plug those in directly instead of using them through the motherboard. Sata cables connect the drive straight to the computer, but electricity needs to come from the power supply unit first, not go back up to the board to reach the cable. Otherwise, you might run out of power or get too little.

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MiLk_My_CoW69
Member
62
05-02-2026, 06:53 AM
#7
PSUs have four pins, but the slots on the drive take up one row at a time. So they won't actually fit that way. If my understanding is right, you can't do it like I thought.
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MiLk_My_CoW69
05-02-2026, 06:53 AM #7

PSUs have four pins, but the slots on the drive take up one row at a time. So they won't actually fit that way. If my understanding is right, you can't do it like I thought.