I'm surprised that it even worked in that slot sometimes, as pins B1→B3 part of the [link|https://pinoutguide.com/Slots/pci_express_pinout.shtml|+12V power supply] feeding the slot.
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I'm surprised that it even worked in that slot sometimes, as pins B1→B3 are a part of the [link|https://pinoutguide.com/Slots/pci_express_pinout.shtml|+12V power supply] feeding the slot.
Does the the PCIe slot look damaged/burnt where the pins that are missing are supposed to be?
I'm not certain but I think that this same voltage feed is paralleled to all the PCIe slots' B1→B3 pins on the board i.e. B1 slot 1 = B1 slot 2 = B1 slot 3 etc, so hopefully it is only the pins that have been damaged (and removed) and not that, for that particular slot that the tracks that the pins connect to, have also been damaged.
I can't find a free download for the schematics for the motherboard (if it is a MS-7B85 model - printed on the motherboard) so this can be checked out before you try to get it repaired, so that at least you know what if any extra work may be involved to repair the problem.
Here are two sites where there are downloads but you have to sign up to download them. [link|https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/bios-schematic-requests/3216757-msi-b450-gaming-pro-carbon-ac-ms-7b85-rev-1-1-schematic-and-or-boardview-seeking-help.|site 1] (scroll down to Post #2), [link|https://vinafix.com/threads/ms-7b85-b450-gaming-pro-carbon-ac.43521/|site 2].
If the board tracks have been damaged as well as the pins removed it may be easier (and cheaper) to add an extra case fan to provide the necessary extra cooling to use the bottom PCIe slot.
I'm surprised that it even worked in that slot sometimes, as pins B1→B3 are 3 out of the 5, [link|https://pinoutguide.com/Slots/pci_express_pinout.shtml|+12V power] rails feeding the slot.
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I'm surprised that it even worked in that slot sometimes, as pins B1→B3 part of the [link|https://pinoutguide.com/Slots/pci_express_pinout.shtml|+12V power supply] feeding the slot.
Does the the PCIe slot look damaged/burnt where the pins that are missing are supposed to be?
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I'm not certain but I think that this voltage is paralleled to all the PCIe slots' B1→B3 pins on the board i.e. B1 slot 1 = B1 slot 2 = B1 slot 3 etc, so hopefully it is only the pins that have been damaged (and removed) and not that, for that particular slot that the tracks that the pins connect to have also been damaged.
+
I'm not certain but I think that this same voltage feed is paralleled to all the PCIe slots' B1→B3 pins on the board i.e. B1 slot 1 = B1 slot 2 = B1 slot 3 etc, so hopefully it is only the pins that have been damaged (and removed) and not that, for that particular slot that the tracks that the pins connect to, have also been damaged.
I can't find a free download for the schematics for the motherboard (if it is a MS-7B85 model - printed on the motherboard) so this can be checked out before you try to get it repaired, so that at least you know what if any extra work may be involved to repair the problem.
Here are two sites where there are downloads but you have to sign up to download them. [link|https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/bios-schematic-requests/3216757-msi-b450-gaming-pro-carbon-ac-ms-7b85-rev-1-1-schematic-and-or-boardview-seeking-help.|site 1] (scroll down to Post #2), [link|https://vinafix.com/threads/ms-7b85-b450-gaming-pro-carbon-ac.43521/|site 2].
If the board tracks have been damaged as well as the pins removed it may be easier (and cheaper) to add an extra case fan to provide the necessary extra cooling to use the bottom PCIe slot.
I'm surprised that it even worked in that slot sometimes, as pins B1→B3 are 3 out of the 5, [link|https://pinoutguide.com/Slots/pci_express_pinout.shtml|+12V DC power] rails feeding the slot.
+
I'm surprised that it even worked in that slot sometimes, as pins B1→B3 are 3 out of the 5, [link|https://pinoutguide.com/Slots/pci_express_pinout.shtml|+12V power] rails feeding the slot.
Does the the PCIe slot look damaged/burnt where the pins that are missing are supposed to be?
I'm not certain but I think that this voltage is paralleled to all the PCIe slots' B1→B3 pins on the board i.e. B1 slot 1 = B1 slot 2 = B1 slot 3 etc, so hopefully it is only the pins that have been damaged (and removed) and not that, for that particular slot that the tracks that the pins connect to have also been damaged.
I can't find a free download for the schematics for the motherboard (if it is a MS-7B85 model - printed on the motherboard) so this can be checked out before you try to get it repaired, so that at least you know what if any extra work may be involved to repair the problem.
Here are two sites where there are downloads but you have to sign up to download them. [link|https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/bios-schematic-requests/3216757-msi-b450-gaming-pro-carbon-ac-ms-7b85-rev-1-1-schematic-and-or-boardview-seeking-help.|site 1] (scroll down to Post #2), [link|https://vinafix.com/threads/ms-7b85-b450-gaming-pro-carbon-ac.43521/|site 2].
If the board tracks have been damaged as well as the pins removed it may be easier (and cheaper) to add an extra case fan to provide the necessary extra cooling to use the bottom PCIe slot.
I'm surprised that it even worked in that slot sometimes, as pins B1→B3 are 3 out of the 5, [link|https://pinoutguide.com/Slots/pci_express_pinout.shtml|+12V DC power] rails feeding the slot.
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Does the the PCIe slot look damaged/burnt where the pins that are missing are supposed to be?
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Seems very strange as those pins supply [https://pinoutguide.com/Slots/pci_express_pinout.shtml|+12V DC power] to whatever expansion card is installed in the slot.
I'm not certain but I think that this voltage is paralleled to all the PCIe slots' B1→B3 pins on the board i.e. B1 slot 1 = B1 slot 2 = B1 slot 3 etc, so hopefully it is only the pins that have been damaged (and removed) and not that, for that particular slot that the tracks that the pins connect to have also been damaged.
I can't find a free download for the schematics for the motherboard (if it is a MS-7B85 model - printed on the motherboard) so this can be checked out before you try to get it repaired, so that at least you know what if any extra work may be involved to repair the problem.
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Here are two sites where there are downloads but you have to sign up to download them. [https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/bios-schematic-requests/3216757-msi-b450-gaming-pro-carbon-ac-ms-7b85-rev-1-1-schematic-and-or-boardview-seeking-help.|site 1] (scroll down to Post #2), [https://vinafix.com/threads/ms-7b85-b450-gaming-pro-carbon-ac.43521/|site 2].
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Here are two sites where there are downloads but you have to sign up to download them. [link|https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/bios-schematic-requests/3216757-msi-b450-gaming-pro-carbon-ac-ms-7b85-rev-1-1-schematic-and-or-boardview-seeking-help.|site 1] (scroll down to Post #2), [link|https://vinafix.com/threads/ms-7b85-b450-gaming-pro-carbon-ac.43521/|site 2].
If the board tracks have been damaged as well as the pins removed it may be easier (and cheaper) to add an extra case fan to provide the necessary extra cooling to use the bottom PCIe slot.
Hi @marto48
Does the the PCIe slot look damaged/burnt where the pins that are missing are supposed to be?
Seems very strange as those pins supply [https://pinoutguide.com/Slots/pci_express_pinout.shtml|+12V DC power] to whatever expansion card is installed in the slot.
I'm not certain but I think that this voltage is paralleled to all the PCIe slots' B1→B3 pins on the board i.e. B1 slot 1 = B1 slot 2 = B1 slot 3 etc, so hopefully it is only the pins that have been damaged (and removed) and not that, for that particular slot that the tracks that the pins connect to have also been damaged.
I can't find a free download for the schematics for the motherboard (if it is a MS-7B85 model - printed on the motherboard) so this can be checked out before you try to get it repaired, so that at least you know what if any extra work may be involved to repair the problem.
Here are two sites where there are downloads but you have to sign up to download them. [https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-desktop-motherboards-graphics-cards-and-pc-peripherals/bios-schematic-requests/3216757-msi-b450-gaming-pro-carbon-ac-ms-7b85-rev-1-1-schematic-and-or-boardview-seeking-help.|site 1] (scroll down to Post #2), [https://vinafix.com/threads/ms-7b85-b450-gaming-pro-carbon-ac.43521/|site 2].
If the board tracks have been damaged as well as the pins removed it may be easier (and cheaper) to add an extra case fan to provide the necessary extra cooling to use the bottom PCIe slot.
Just what I'd check first.