How to Test 16X PCI-EX Slot Operation?

haed · ‎05-31-2023

Good morning,

I have a HP ProDesk 400 G6 MT 7EL75EA, with Intel i5-9500 processor, HP 8599 motherboard, Intel B360 chipset.

Months ago, I tried to install a "pci-ex M.2 adaptor" on the PCI-ex 16x slot but the Windows 10 could not find any new hardware and so I could not use it.

Today I tried to install a graphic card MSI GTX 1650 (the only one I found without an additional power connector) on the PCI-ex 16x slot but Winsows 10 does not find any new hardware and therefore I could not use it.

I have a doubt: is my 16x PCI-ex connector working properly? Is there a way to verify the actual operation?

erico · ‎05-31-2023

Good day,

One interesting thing about M.2 PCIe adaptor cards is that they are specific to the format of the M.2 card. I suggest trying a SATA M.2 PCIe adapter card.

Your Microtower PC has a PSU that is pretty anemic, in terms of power capability, so a GTX 1650 that requires 75 Watts is likely to be a problem.

You should probably consider upgrading to a compatible 310W PSU.

See the thread at the hyperlink below for information on the HP part number for a 310 PSU.

https://h30434.www3.hp.com/t5/Desktop-Hardware-and-Upgrade-Questions/Gpu-Upgrade-for-HP-prodesk-400-...

There are good reasons for using full or mid-sized desktop PC platforms, the least of which is a more powerful PSU being standard.

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haed · ‎05-31-2023

Thank you for your interest.

My pc is supposed to have a 180w power adapter.

The I5-9500 processor should consume 65w.

I don't have a mechanical hard drive but only 1 M.2 and 1 SSD.

The video card I try to install DOES NOT have an additional power connector so I assumed it might work on my computer.

My doubt is to verify if the PCI-ex 16x port works otherwise what could it be useful for?

erico · ‎05-31-2023

I take it that you are not that familiar with PC hardware or you wouldn't have asked.

A 180W PSU is seriously lightweight in terms of a PSU.

If you add up what the components use it comes too close to what the PSU is supposed to provide. I have not even included an additional M.2 SSD on a PCIe M.2 adapter in my calculations.

65W+75W+20=160W. The motherboard itself will use some additional power (watts) as well.

Making an assumption without specifications when choosing components can result in a non booting PC.

Look for a compatible PCIe video card that draws far less power if you want to have a successful upgrade.

The way I would test PCIe slot is to plug in an appropriate PCIe x1, x4 or x16 device as appropriate while ensuring that the PSU is capable of supplying power to the device. I do like to avoid having my PCs crash or not boot.

Did you read my last post completely?

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