23 minutes ago, SpaceForceCapt said:

These PCs are known to have cooling issues, unfortunately.

I don't remember ever doing something to overclock it, but it appears it is.  The base speed of the CPU is 3.2 Ghz.  Not sure why it's constantly running balls to the wall at 4.3??

I have been reading a bit about that PC and it does seem to have CPU cooling and air flow issues. It does seem to highlight what I have been saying (I take no pleasure in that at all). If it is out of warranty then I would look for an all in one liquid cooling solution. It will eliminate the air flow issue, fundamentally. For the CPU, anyway, which will also relieve cooling pressure on the GPU and other componants. That is, of course, should the case allow it.

Frankly, for a manufacturer to ship with such an appalling cooling issue is unforgivable but not surprising.

I know it sounds trite but but one really should avoid paying companies like HP for sim rigs. Putting things together oneself is almost foolproof these days (almost) and you get so much more for your money. It's nothing like the old days (where I'm from) I think even the most PC illiterate of minds could do it with just a days research and even less if they ask the right people for help. It's almost all plug and play these days.

18 minutes ago, sd_flyer said:

Why not if you get more capable cpu with better cooling solution . You can only push old rig that far

Because he should not be suffering as he is with the hardware he has and not everyone has the money to chuck at new expensive hardware.

1 minute ago, Jazz said:

Because he should not be suffering as he is with the hardware he has and not everyone has the money to chuck at new expensive hardware.

I worked three jobs. Money doesn’t pour out of the skies for me lol

So, I cleaned the dust off the fans and heat sink.  There wasn't much on there, but figured why not.  Idle temps seem a bit better (down in the 40s).  I ran MSFS again, and at first it seemed a little better, but core temps went back to the high 80s (they fluctuate).  Here's the weird thing....I had the plane on autopilot, and I was watching the CPU stats in HW monitor.  As luck would have it, the sim crashed again.  HW showed that the CPU was not throttling down when it happened.  In fact, it appeared to be running at the typical 4290 Mhz.  The min CPU state does show about 3700, so they may have throttled down a little, but that's still pretty fast, right?  How much would it have to throttle down to crash the sim?  I wish there was just an error log that would show why it shut down.

Also, right not, it's flying in the background, and temps are in the 60s to low 70s.  I tried opening the side of the case (see pic below), and that seems to have really helped.  I guess maybe I should open it like that whenever simming?  Heck, do I even need that side cover on there at all?  I know it'd keep large debris from getting inside the case, but not sure it's really necessary.

https://postimg.cc/GH0v9sM7

14 minutes ago, SpaceForceCapt said:

Heck, do I even need that side cover on there at all?  I know it'd keep large debris from getting inside the case, but not sure it's really necessary.

https://postimg.cc/GH0v9sM7

$3.00 fix. Buy some window screen, take the case side panel off and tape the window screen to the case and leave it that way. Sure some dust can get in, but it was getting in before, just not through the side panel.

It definitely makes a difference.  I read that having an open case might be bad due to the need for air pressure and flow, but I think the caveat is, that applies to a well-designed case.  From what I've read, this HP case is not that.  Temps are still reasonable just sitting here, but they are definitely cooler with it open.  Maybe I will just pop the hatch when I'm flying.  I don't seem to have any problems with day-to-day computing.  Although, I do a lot with Lightroom and Photoshop, so I'll have to see how my CPU does with that.  I never really paid attention since there were never issues.

1 hour ago, SpaceForceCapt said:

Heck, do I even need that side cover on there at all? 

Rack mount Server cases should not be run with the case lids off as they rely on suction and exhaust air to do things like cool the drives.  Taking the lid off provides an alternate airflow and things can cook.

 Home tower cases are usually fine. Unless you have a lot of mice running about of course. Also watch out for the cat getting curious.

Edited January 21, 20233 yr by Glenn Fitzpatrick

A temp of 95 degrees Cel ius is way too much abd absolutely causing issues.

I would do 2 things :

-  change the cpu cooling for something better so it stays below 80 degrees Celsius 

- Reinstall MSFS as probably because of all the crashes some files might have become corrupted

-If it was me I even would reinstall Windows 

Perhaps a change of case to something with better airflow? 

What are your ambient temps in the room where the PC is?

8 hours ago, SpaceForceCapt said:

Temp is around 95 C.

that's a hot cpu

I agree with all above (having had CPU temp problems myself in the past).  MSFS puts spikes of intense CPU activity and associated temperature at certain stages of the flight - and the most modest spike, if you are already running near maximum temperature, is going to overheat and throttle it - and, often, in MSFS that will result in a CTD.

But as well as better cooling, you might want to also drop the automatic 'turbo boost' a touch.  And yes, that HP model is set up as standard with automatic turbo boost.  But the HP advertising blurb states that this is controllable.  It is therefore worth googling how you do that on the HP Omen Obelisk.  I did a quick google and there's a fair bit on the HP Website, including the use of the Omen Command Centre software which is designed for that very job.  I get the impression that, as supplied, the PC will turbo boost to max 4.7 if allowed to...but that is a considerable overclock against the base clock speed and will be able to be reduced. 

Edited January 21, 20233 yr by AJZip

I think you first solution is to change out the CPU cooler. The stock Intel cooler isn't great and the thermal paste probably has lost its performance as well by now. 

Any cooler that isn't too tall will work. I could find any specs on the Omen case but I guess you shouldn't go taller than 140mm for a cooler, and it should fit on a 1151 socket.

I'm not sure where you are located but this one will do the trick; 

https://tweakers.net/pricewatch/1666636/be-quiet-pure-rock-slim-2.html

https://www.microcenter.com/product/640534/be-quiet-pure-rock-slim-2-cpu-cooler

When you buy a new cooler check if it comes with thermal paste. 

 

13 minutes ago, bigifooti said:

I think you first solution is to change out the CPU cooler.

Right - the OP already stated that he did this a while ago, top of page 3 …

4 minutes ago, SierraDelta said:

Right - the OP already stated that he did this a while ago, top of page 3 …

oops, didn't read the whole tread 

I had issues with CTD for long long time until i finally found out ( i am by no means a computer expert) that may PSU was way too weak. TLDR not knowing your specs this might be worth checking. After i installed a 900W PSU i never had any CTD again.

Best regards,

Tom