I have serious DPC Latency problems

Ok here is what I posted to Gigabyte to see if they have a solution, I thought I'd post here too. Maybe one of you can help me out.

I am having some DPC Latency issues with Windows 7 64 bit.

I am having a really hard time trying to solve the problem, I have went into device manager to disable device drivers to see if the DPC Latency would stop spiking but nothing seems to be working.

I downloaded the DPC Latency program because I was noticing that I was getting very short CPU lags from time to time, and also audio crackling/lag. So I looked into this program and it was showing the graph spike yellow and red when I run programs, It seems to be totally random.

The weird thing is, is when I am playing a game that requires a lot of CPU, and I alt+tab to see what the graph is doing, the graph is all green with very low latency.

But once I get back to the desktop, that's when it starts to spike again. So during high-demanding games the graph will be all green.

I have all the current drives and the newest BIOS update. I have formated my PC several times to see if it would fix the problem, but it's the same problem every time with Windows 7.

The problem seems to be totally random, sometimes it will spike when I load programs (any program) and sometimes it will not.

It seems like it is causing the CPU to micro-stutter, and affects music sometimes because it will crackle. I have tried onboard sound and a high-end sound card, still the same thing happens.

Is there anything I can do?

NOTE: I just installed the Energy Saver program from the Gigabyte website to see if it would cause any problem. Well I turned the program on an looked at the DPC display and it's all red bars. I then turned on an mp3 to see if it would cuase any skipping/crackling and it is really bad.

With Energy Saver turned on the DPC displays every bar red at different heights and audio will stutter badly.

Here is a picture:

http://tinypic.com/view.php?pic=2h6h9jq&s=6

-------------------------------------------------------------------------------
Model Name : GA-EP45-UD3L(rev. 1.0)
--------------------------
M/B Rev : 1.0
BIOS Ver : F9
Purchase Dealer : NCIX.com
-------------------------------------------------------------------------------
VGA Brand : Nvidia Model : Palit 8800GT
CPU Brand : Intel Model : Quad 6600 Speed : 2.40
Operation System : Win 7 64-bit SP :
Memory Brand : G.SKILL Type : DDRII
Memory Size : 4 Gigs Speed : 1066 (PC2-8500)
Power Supply : 650 W

 

First off I just want to say I don't mean this in a harsh way. I'm 20 years old, and I've worked for a few insurance and debt companies in the GTA/Hamilton area, regarding network/server installation and maintance, and I currently work for Summit Direct computers which is a local computer store in downtown Hamilton. I could keep going but to make it short, I've worked with computers my entire life.

I know what DCP is, but I have never once heard someone having a problem with anything even remotely relating to it. What motherboard do you have? Be more specific then just a gigabyte. Has anyone else with your current board had problems relating to this when you google it? Give this a shot anyways, the onboard audio/lan obviously is having issue. What ever it may be (software or hardware), if you aren't going to replace the board you need to resort to using seperate cards. You need to expect small spirts here and there if using onboard components, no more then 2% combined and having a Quad core then likes .5%.

I myself, have a board which was designed right around the Vista Era, when only a few boards were designed around that operating system. That being said, my networking card has never really worked perfectly since I've installed windows 7 64-bit. When I use utorrent, it'll crash shortly after running and come up with driver code errors (even with the current drivers from the asus website, P5W DH Deluxe). To solve this problem, I could just simply not use that network card and completely cancel the whole thing out but I'm going to just replace my board, with a board thats designed and created for windows 7. The day and age we live in now with technology, of buying top of the line and it lasting for years is over. Go middle of the pact regarding price most of the time and save your pennies for the next computer and you'll always have a perfect machine (if built correctly).

 

When I emailed Gigabyte they asked me if I am having any other problems, and to make sure I turn off anything that is not being used to test.

I have tested these:

Fully formatted
Onboard Sound - Same problem
Soundcard with Onboard disabled - Same problem
Every driver is updated.

I actually formatted yesterday to try and fix the problem. After I formatted I ran the DPC program right away, and it was giving me problems immediately. So something tells me this HAS to be hardware related.

Yes, this Motherboard is not designed for Win7, sadly enough.

I have not tried a seperat Network card though, but my Onboard LAN seems to work 100% without any problems.


-------------------------------------------------------------------------------
Model Name : GA-EP45-UD3L(rev. 1.0)
--------------------------
M/B Rev : 1.0
BIOS Ver : F9
Purchase Dealer : NCIX.com
-------------------------------------------------------------------------------
VGA Brand : Nvidia Model : Palit 8800GT
CPU Brand : Intel Model : Quad 6600 Speed : 2.40
Operation System : Win 7 64-bit SP :
Memory Brand : G.SKILL Type : DDRII
Memory Size : 4 Gigs Speed : 1066 (PC2-8500)
Power Supply : 650 W

This is a really hard problem to solve .

 

Also, another thing that is weird.

My cousin has the exact same motherboard and processor, and he tested his for me. He said he had no problems with spiking in the graph.

So I dunno WTF the problem is!

http://forums.tweaktown.com/f69/ga-e...crackle-38090/

This guy is actually have the same problem with his Gigabyte board.