Windows "pauses"

drak3

drak3

drak3

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Joined
26 Jan 2006
Posts
1,502
Hey all,

I upgraded my system to Windows 7 and I noticed that the system would "pause" every few seconds or so. Noticable when watching a movie as the screen froze for 500ms every 5seconds or so.

I formatted and installed windows 7 from scratch. Still the same problem :(

Any known bug, or there is something wrong with my hardware causing this?

Your help is appreciated.
 
Awsome tool! Cheers! :)

I get red bars, and a message about some "bad behaving" drivers. I guess is a matter of enabling/disabling stuff to "isolate" the problem?

I hope it is, cause I started suspecting a hardware fault :(
 
Assuming you didn't get this problem with your previous OS then it is probably just an immature driver or bug in Windows 7 which will be fixed hopefully.

It might be something which could be solved with a BIOS update also. A complete guess but I know some Gigabyte boards suffered from the DPC latency spikes and was fixed in future BIOS revisions. But if it was okay in Windows XP/Vista then it probably isn't that. If it is then expect others to be talking about it on the Asus forums.
 
Last edited:
THANKS again for this tool mate, I managed to spot the problem!

Looks like a "power management" problem.

I boot windows, run the tool. LOADS of DPC latency.

I put system to sleep.

Restore back from sleep.

Latency is gone.

I have to idea what is going on here, but it is "software" and "power" related.

At least now I can sleep/restore and watch my movies :D
 
would be interesting to see the difference in latency between XP64bit, Windows7-64bit and vista sp2 64bit
 
bledd. said:
would be interesting to see the difference in latency between XP64bit, Windows7-64bit and vista sp2 64bit
Click to expand...

True, since I am at it.

Stats
------------------------------
Range 80-300 micro seconds
Average around 150 micro seconds

System
------------------------------
Windows 7 64-bit (fresh install 1 hour ago, only BASIC drivers etc)
i7, Vertex SSDs etc.
 
my mum's year old vista install..

Range 84-100, with spikes to 1000 now and again

Vista 32bit
e2180
4gb ram (i know :p)
 
UPDATE:

Problem appears to be related to my DFI x58 mobo's BIOS. It is NOT a windows 7 driver problem (yes, windows 7 is ok - or it appears to be in this case! :p).

bledd: Looks good, I will check again after I update my BIOS and hopefully "fix" the mobo.
 
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