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i5 Sandy Bridge Causing Audio Glitches


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#1 klausfunk

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Posted 08 January 2012 - 04:48 PM

Hello. I hope you can help.
Stay with me, this could be a long post!

I have just upgraded my rig.

Previous

Q6600
P5b-e Plus
Win 7 64

New

i5 2500
MSI P67A-C45
500GB Seagate sata3
Win 7 64

Problems

I am seeing huge CPU spikes randomly.
Glitches and pops in audio.
When just playing an MP3 CPU usage jumps between 0-40%

I have read Sandy Bridge has problems with PCI. As it now bridges with the PCIe bus.

My soundcard is an M-audio Delta 1010 (PCI)

I do not really want to upgrade my soundcard.

Things I have tried and results

I removed my PCI wireless card. This seems to slightly improve the glitches but they were still there.
I also tried my PCI devices in different slots. The wireless card only works in one slot!?!?!?

I have disabled all CPU "green" energy saving features in BIOS.
This again improves matters but now I get random freezes and non responsives apps.

I have updated all drivers, bios, firmware etc

Where it gets weird

I rebooted into my old Win 7 OS.
A Samsung 320 sata 2 drive as it happens.

Now the glitching here is gone.
Some CPU spikes but much rarer.
This OS has more updates but essentially the same.
I do not want to use this drive as I believe its about to die! (Clunk Clunk)


Any help/advice would be most appreciated!

Thanks

Karl

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#2 cryptodan

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Posted 08 January 2012 - 04:54 PM

I would recommend reformatting and starting out clean keeping the wireless card out, and see if the glitches go away. You may also need to upgrade the BIOS as well to get better support and hardware performance.

#3 klausfunk

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Posted 08 January 2012 - 05:14 PM

Cheers cryptodan.

A reformat was next on my list after I had exhausted these forums!

I have updated the BIOS using the MSI LIVE5(?) utility but no improvement.

Ill soldier on and if no solutions will reformat and try again tomorrow.

Karl

#4 cryptodan

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Posted 08 January 2012 - 05:17 PM

You went from old technology to new and for that everyone recommends a clean format on a new install with new hardware to in sure everything works well.

#5 klausfunk

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Posted 08 January 2012 - 05:36 PM

Sorry.

I obviously did not make it clear.

I did a fresh install of win 7 64 on the new 500gb Seagate drive. This is the one I am having problems with.

But when I boot into the old OS install, Samsung 320gb, the problems go away!

Karl

#6 cryptodan

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Posted 08 January 2012 - 05:39 PM

Please perform the following, so that we can get the exact specs of your computer. This will better assist us in helping you more.

Publish a Snapshot using Speccy

The below is for those who cannot get online

Please take caution when attaching a text file to your post if you cannot copy/paste the link to your post, you will need to edit it to make sure that your Windows Key is not present.

#7 klausfunk

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Posted 08 January 2012 - 06:09 PM

http://speccy.piriform.com/results/Z8KgWiRSHEsZ1PnalVABvhz

Strangely since re-booting and fiddling/removing pci wireless etc the problem seems to have improved!
But regardless your help is appreciated.

Karl

#8 cryptodan

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Posted 08 January 2012 - 06:53 PM

Please go here http://www.msi.com/product/mb/P67A-C45.html#/?div=Driver&os=Win7%2064 and make sure all your drivers are updated.

#9 klausfunk

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Posted 09 January 2012 - 05:52 PM

I have updated all my drivers.

When searching online for solutions I keep coming across similar problems.
All ideas/solutions point towards the PCI bus on the Sandybridge chipsets not having PCI support anymore.
They now use a bridge chip.


I have seen vast improvements since removing my wireless (PCI) card.

Maybe the solution is to purchase a new PCI-e wireless and PCI-e sound card.

Karl

#10 klausfunk

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Posted 11 January 2012 - 07:17 PM

Currently I am trudging through my BIOS as I heard CPU power management can affect performance.

I have Disabled CPU Phase Control, C1E Support, Intel C-State and EIST. This improved the problem vastly.
Then I read that disabling HPET could help further. But when I disable this, Windows gets stuck on the boot
splash screen!

Does anyone know what HPET actually does and why it would cause a no boot?

I know what it is. But as far as I know, it shouldnt cause problem...

Karl

#11 cryptodan

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Posted 11 January 2012 - 07:32 PM

You will need to reinstall Windows if you want to disable HPET.

http://msdn.microsoft.com/en-us/windows/hardware/gg463347.aspx#ECD - HPET




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