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September 5th, 2022 05:00

7520 no Serial Port COM

​I recently purchased Precision 7520. Upgraded bios to latest (1.26) and installed Win7 and as well W10 on M2 device.​

​On both there is no present Serial Port COM(X) in device manager. I don't see conflicts (by type) and Address and IRQ 3 or 4 are not used.​

​I tried disabled / enable Serial in Bios but nothing happened.​

​Any idea?​

9 Legend

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33.3K Posts

September 5th, 2022 06:00

There is no RS232C Serial port listed for this model.  

If you need a serial port you will need to purchase a USB to RS232C serial adapter.  However, I find these to be inconsistent, so buy where there is a liberal return policy if it doesn't work.  

3 Posts

September 5th, 2022 09:00

Via dock station there is RS232 and in bios there is such setting (and also Parallel LPT but there is no problem with it)

THe same way I use with HP 8570W

9 Legend

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33.3K Posts

September 5th, 2022 11:00

I have a USB/RS232C adapter.  The adapter shows up in the Device Manager but not the BIOS.

A docking station RS232C port would show up the same way, in the Device Manager.

 

 

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