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DPC Latency when idle - Keyword *IDLE*
I've been having latency issues lately on P5Q pro turbo while streaming radio, netflix or watching youtube (The typical popping & stuttering I've been reading about). I don't know how long I have had it but I just started noticing a week or 2 ago. Been idle all night while I slept and turn the monitors on first thing today and still getting red spikes.
I have Atheros® L1E Gigabit LAN controller featuring AI NET 2 on a P5Q pro turbo motherboard and have tried driver versions 1.0.0.15, 1.0.0.16 and 1.0.0.18 versions of the Atheros AR8121/AR8113/AR8114 PCI ethernet controller. The driver version on the MB CD is 1.0.0.16.
I have downloaded this package from this site Drivers Informer: Atheros AR8121/AR8113/AR8114 PCI-E Ethernet Controller overview Which says Win7 should be 1.0.0.49 but when I installed it, it only installed 1.0.0.18. It gave no option which one to install. I cant seem to install .49 version. Funny thing is version .18 isn't even listed in the above link.
NDIS 6.20 is the worst latency offender. Can I safely put NDIS 6.30 or 6.40 on Windows 7x64?
I have tried disabling LAN, video and sound in the device manager as well as a backup Logitech BT mouse driver.
I have 2 video card slots on my MB each with a card. I swapped the card positions around in case something was conflicting. According to How to Detect an IRQ Conflict | eHow I have no conflicting devices and no yellow exclamations.
Nothing seems to help. The ONLY thing that seems to put a temporary fix to the latency is rebooting. Then it will be good for a few hours and then its back.
This morning I have my highest numbers ever. I dont know what they mean except the higher the number the worse things are. Been messing with this for about 2 weeks now and seem to have made 0 progress. When I took the screen shot NDIS was 379us highest execution and now its up to 402us.
I am typing this in notepad before I put it here and in fact just after I wrote highest numbers ever in the above sentence, DPC latency checker went ALL red. This is the first time I have seen it go all red. I wasn't fast enough to get a screen shot but the spikes were between 4000us and 8000us.
Anything I can try next based on the information provided?