Question HP Desktop won't start. 3 Long Beeps - 2 Short Beeps - but not RAM related

shawnc

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Jul 29, 2016
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HP Envy / Win10 / i7 / 32 GB Ram (4x8GB) / integrated graphics desktop about 6 years old. . Otherwise very dependable - first hardware issue since new.
3 long beeps - 2 short beeps is supposed to indicate memory issue.
4 x 8 GB ram in use for 2 yrs no problems.

What happened:
Mouse was randomly locking up which I thought was odd as mouse battery was fine. It would happen when I moved the case/tower slightly
to plug in a USB connection in back. (using different mice/keyboards etc).
I was needing to restart the desktop to unlock the frozen mouse. Pulling out batteries/usb dongle was not resetting it, only restarting the computer.

I was getting frustrated with it happening several times a day and since it seemed motion related, I tapped (slapped) the side of the case/tower.
That was a bad idea. The monitor went into a green/red checkerboard patchwork christmas zombie quilt looking pattern.

Restarting resulted in 3 long - 2 short beeps and no display/monitor output (dead screen).
Everything online says those beeps are Ram related and if Ram is not the issue you probably need a new motherboard. No other options listed.
It has 4 ram slots. I tried every combination of single stick, 2 sticks, swapping each stick and slot and nothing worked. Secured lock tabs tightly. No dust etc.
The ram has been fine for 2 years, not new. Very great fast computer till this week.

HP says to check ram enter BIOS but nothing will get me past the beeps.
"Keep plugged in, turn off, hold power 15 seconds"-turns off then immediately turns back on with beeps even with F10 depressed
"unplug, hold power 15 seconds, plug back in, F10" - goes straight to beeps.

It will not power off. It stays on/fan running/beeping. The only way to turn off is unplug. So I was doing that 30x testing the different ram configs,
etc. When power button is held in it shuts off momentarily then immediately powers on into beep mode.

I have the case wide open and do not see any cables or anything loose or damaged.

Nothing is getting me to bios or any screen display at all.
The only thing I noticed was after changing ram configuration, it would take 10 seconds to assess the new config before going back into beep mode.
Without changing ram config, it would immediately go into beeps within a few seconds of power.

Any suggestions?

Thanks!
 
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HP Envy Win10 i7
HP is the brand, Envy is the series from which the prebuilt is from, please pass on the model and SKU for said prebuilt.

4 x 8 GB ram in use for 2 yrs no problems.
Did it come this way or was this an upgrade? If the latter, got a link tot he ram kit used?

It would happen when I moved the case/tower slightly
Does the prebuilt have a mechanical drive? While moving, was the power cord manipulated?

I was getting frustrated with it happening several times a day and since it seemed motion related, I tapped (slapped) the side of the case/tower.
A PC is only as smart as the user that's using it. Beating the PC doesn't do anything actually.

Everything online says those beeps are Ram related and if Ram is not the issue you probably need a new motherboard. No other options listed.
It could be a sign of a corrupt BIOS, i which case you could probably recover the BIOS using the internal recovery tool(if that exists with your model of HP Envy) or the use of a CH341A BIOS Programming toolkit.

Moved thread to Prebuilt & Enterprise section from Systems section.
 
Thanks. I don't think power cord was manipulated enough to effect the solid plug connection. The power cord was definitely moved along with the tower. There was never a power loss due to moving the unit. I normally have many apps open and never want an unexpected restart. It may have wiggled a bit but not much.

I don't know if graphics were freezing along with mouse or not. Couldn't interact with computer.
Display did not change until case was tapped, then went to red/green checkerboard pattern. Once that occured I powered off to restart. That was the last time there was output to monitor.

HP ENVY 795qd Desktop PC
Product number: 4AB22AV
Serial number: xxxxxx7J4Q
Purchased Dec 2018 (longer ago than I thought)

Primary drive: 1 TB SSD
HDD backup drive

RAM all new upgrade 2019: (link in next reply)
Ballistix Sport LT 32GB Kit (8GBx4) DDR4 2666 MT/s (PC4-21300) SR x8 DIMM 288-Pin - BLS4K8G4D26BFSEK (Red)
 
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