Hauppauge PVR-500 Stuttering in Win7 64-bit

[TheraEdge]

Just wanted to post my experience getting my new Win7 (64-bit) SageTV Server up and running.

The short version is that I learned through the forum and various testing that the old PVR-500 I was using in my system lags the computer out if there is 4GB or greater memory available. My understanding is it is a problem with Hauppauge's Win7 drivers for the PVR-500. Looking at Hauppauge's driver download page, it says the driver can be used in, "systems with less than 4gigs of ram." Which is why I started looking more down that road.
http://www.hauppauge.com/site/suppor...rt_pvr150.html
(My understanding is this issue also applies to PVR-150 & 250 as well).

So, the quick solution, use msconfig to limit the system memory to less than 4GB (4096MB). Thanks to Tiki for a past post with the direction on that. I was running exactly 4GB of ram, so I limited mine to 4000MB and all seems to work fine. It sounds like older drivers had more issues, and Tiki had to limit his system to 3GB to get it to work.
Here is a link to the original post by Protoman where they were limiting to 3GB of memory
http://forums.sagetv.com/forums/show...8&postcount=13

Also, I had found another post by texneus where linked to a DPC latency checker that I used to zero in on the PVR-500 as the problem, by dissbling a piece of hardware at a time while recording until my lagging stopped. (Probably didn't need the checker to tell me my system was lagging out, but it provided a nice graphical feedback and history chart).
http://forums.sagetv.com/forums/showthread.php?t=47966

Thanks to everyone here who keeps us all up and running. I'm looking forward to transitioning this new machine into the HD realm (with all your help :P).

[Taddeusz]

It's a known problem that the old Hauppauge PVR-150/250/500 cards are not compatible with systems that have 4GB or more RAM. This isn't going to change and will never be fixed by Hauppauge.

[TheraEdge]

Yep, it just took me a while to find an old post on it and get sorted out since I just changed to Win7, so I created the updated one with my experience.

Don't suppose there are any hardware FAQs links we could sticky and add some of these things in like the Sage FAQs etc...

IE. Why is my SageTV server glitching out with an old PVR model?

It just took me a while to find the right solution because I didn't completely know what was happening.