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HP MP9 G2 Freezing - no BSOD or event log entries

HP Recommended
HP MP9 G2
Microsoft Windows 7 (64-bit)

Hi,

 

We had recently switched from MP9 G1's (that worked great) to G2's and have discovered that these machines randomly lock up when idle for long periods of time.

 

For example, after leaving it on over night and checking back in the morning, the machine appears to be completely frozen - the display still outputting the desktop (although completely frozen). The keyboard does not respond to any key presses and network activity is lost (can't remote desktop in for example). 

 

A force reboot is required.

 

Looking through event viewer logs, it suddenly stops logging at the time it freezes - nothing stands out, no bugchecks or BSOD related messages.

 

I enebaled automatic restart and the generation of debug dump files, however the machine still freezes without displaying a BSOD or generating any files.

 

We've experienced this on roughly half of the 40 units we have on testing.

 

BIOS version/date is HP N21 Ver. 02.05, 11/11/2015

OS: WES7

 

All drivers have been uninstalled/reinstalled/update

 

Power settings have been changed to try troubleshoot.

 

We ran Memtest, Prime95 and various other hardware stress tests and cannot replicate the issue. It's also not guranteed that if we left the machine idle for 24 hours that it would definitly lock up.

 

Any ideas?

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HP Recommended

We are also experiencing these issues. A number of G2 units hang (frozen picture, network loss, keyboard non responsive).

All I can say is that HP is looking into it.

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HP Recommended

Has anyone resolved these issues with the MP9.

I have just had to swap out another of these at one of our customers sites

We have noticed quite a few MP9 units freezing.

with frozen display and unable to CTRL ALt DEL or move mouse or get any keyboard input working.

 

The only resolution is to pull the power or hold the power switch to force non graceful shutdown.

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Disabling the 'extended idle power' setting in the BIOS improved the stability. We've also updated the BIOS and the Intel Firmware as well as the graphics driver.

However, even with all of these changes the issue happens every now and then.

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