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Windows 7: Attempted RAM Upgrade - CPU Usage spikes to 100% - Now Sluggish

23 Nov 2014   #21
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Look into Resource Monitor > CPU tab what is using the CPU


My System SpecsSystem Spec
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23 Nov 2014   #22
rhodes732

Windows 7 Pro 64 bit
 
 

In Task Manager:
When no program is open, the CPU Usage stays at 0%, with occasional "blips" up anywhere from 1% - 10%. Memory stays at 2.44 GB used. This seems like normal, healthy behavior.

But when I open a program, Chrome for instance, CPU usage spikes to 100%, and stays there. You can see the system struggling to open the program. It used to open Chrome with complete ease. After a moment the CPU usage drops down to 0% again, but simply changing tabs in Chrome is much slower. The computer is nowhere near as responsive.

Is there anything in specific I should look at under the Processes? Page Faults?
My System SpecsSystem Spec
23 Nov 2014   #23
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Did yopu look into Resource Monitor which processes eat the CPU.


Attached Thumbnails
Attempted RAM Upgrade - CPU Usage spikes to 100% - Now Sluggish-2014-11-23_2309.png  
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23 Nov 2014   #24
rhodes732

Windows 7 Pro 64 bit
 
 

Doing anything in Chrome causes that column to show numbers like CPU 8, 12, 14. And everything loads at around 1/10 the speed it did before.
My System SpecsSystem Spec
23 Nov 2014   #25
rhodes732

Windows 7 Pro 64 bit
 
 

Dell support is advising me to reinstall the OS, or try a System Restore. The trouble is either of these solutions means I have to reinstall Adobe Premiere, which is really scary as the project I've been working on is in that.

It doesn't make sense. I attempt to install two RAM sticks that match the specs of the factory installed RAM. And then the computer's CPU begins to spike and the system gets really sluggish. I no longer see the BSOD on boot because I uninstalled the Intel Rapid Storage utility (though the DRIVER was not uninstalled). But the system is still super slow. WTF?

Anyone? I'm running out of time and options here.
My System SpecsSystem Spec
23 Nov 2014   #26
rhodes732

Windows 7 Pro 64 bit
 
 

nothing is disconnected inside the case, btw. Looks super clean.
My System SpecsSystem Spec
24 Nov 2014   #27
Shimshom

Windows 7 Ultimate x64
 
 

It's possible when installing the RAM you somehow pushed the CPU cooler and it might be worth a try to resit the CPU itself and double check all the cables just in case. I've changed and upgraded RAM many times and it never caused such an issue
My System SpecsSystem Spec
24 Nov 2014   #28
rhodes732

Windows 7 Pro 64 bit
 
 

I didn't touch the CPU cooler at all during the process. I've installed RAM many times before too, which is why this is so perplexing.

Does anyone have any programs or diagnostics I should run to see what's causing the problem? Does anyone have any idea why the CPU would suddenly have to be working so hard?

And btw, I am in fact still seeing BSOD crashes related to the Intel Rapid Storage iastor.sys driver. Sometimes it goes into a loop: three BSOD in a row at startup before I can do anything on the desktop. Then the desktop boots smoothly and I'm able to use the computer at the much slower speed.

Does it make any sense to try to install an older version of that iastor.sys driver? That's what the Dell tech suggested, but is there any logic to doing it? Why would the Intel Rapid Storage driver suddenly be slowing down my system like this?
My System SpecsSystem Spec
24 Nov 2014   #29
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

A couple of thoughts:

It is possible, particularly if the Xeon processor has the memory manager on chip, that the register is corrupted.
I would first try a Clear-CMOS/CLRTC procedure:
(Note: Clear CMOS and CLRTC are the same thing)

  • Go into BIOS/UEFI > Note all your current BIOS settings
  • Shut down the computer > remove the power cord.
  • Remove the 3v battery from the motherboard.
  • Move the CLRTC jumper from pins 1-2 to 2-3. (Refer to your manual to find the jumper location)
  • Touch a metal part of the case and Press and Hold the reset button for approx. 30 seconds to discharge all power from the board.
  • Put the CLRTC jumper back on pins 1-2.
  • Replace the 3v battery > replace the power cord > boot.
  • Immediately go back into BIOS and reset all your preferred settings. If the CLRTC worked you will need to reset the date and time in BIOS.
This will force the system to remap the memory.

The reason that WHS suggested that you use REVO UNINSTALLER to remove IRST is that the normal Windows uninstaller will often leave orphaned files on the hard disk and in the registry. Revo does a better job (better, not perfect) at removing all files.
But it is too late for that now. Plus, IRST 'driver' changes some of the core Windows files on install, so it is basically a once installed you can never go back deal (unless the original install was less than 30 days ago).

Let's see if the Clear CMOS does anything for you. In the meantime, don't thrash about. Making system changes and uninstalling things randomly can greatly complicate what could be a simple problem.
My System SpecsSystem Spec
24 Nov 2014   #30
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Another thought:
People often overlook the RAM voltage when matching specs. This is complicated by the fact that many stores do not list the voltage in their specs.
It is just as important that all 4 sticks of RAM run at the same voltage as it is that they are the same type. And the more expensive DDR4 can run as low as 1.05v. Check it.

Not as important, but the memory timings should be a match also, or very close.
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 Attempted RAM Upgrade - CPU Usage spikes to 100% - Now Sluggish




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