Radeon9600 in 720p video; cpu overheating after mobo swap.

[imperialist]

Two major problems

1. My T40 (1.5 banias, rad7500, 512MB) had problems with playing some of the 720p videos (usually in containers wmv or mkv), as problems I mean low framerate or freezing till keyframe etc.
Two days ago I've replaced almost everything in that T40.
Present : T42p motherboard, 1.8 dothan, rad9600, 1.25 GB. Now those unplayable 720p videos goes a bit more smooth, but still there is a glitch from time to time (usually when there is too much hapening at once in the video).

The reason of this upgrade was to give my ThinkPad a boost in 720p HD videos. Honestly, it wasn't worth it.
Question I'd like to ask - Is there a user on this forum that have no problems with compressed high resolution films ? If is - which T4x do you have ?



2. 1.8 dothan with long heat sink is way much hotter on T42p's mobo than on T40's. Temp is round 56-7 deg C when system is almost idle (and max i saw was 87 while working) ! On T40 it was about 44-5 with max temp never more than 70 ! How is that possible (it's the same cpu !) ?

After all those replacements I assembled ThinkPad by myself. Could that overheating be a sign of wrong placed heat sink, or is it just cpu absorbing some of the gpu's heat (which is always lower than cpu's) ?


Best regards.

[imperialist]

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[Tim M]

I have a T42, recently upgraded as in my signature (FireGL 128 MB). Both this and the previous Radeon 9600 were able to handle 720p videos fine, though 1080p videos run very slowly (video track falls behind the audio track).

As for your second question, I would check functionality of the fan, application of thermal compound, and goodness of contact between heat sink and CPU.

[sugo]

T42 with 1.7GHz dothan and ATI 9600. All the 1280x768 H264 clips I have played are all smooth. CPU can get to 80-90% usage though.

[sojourner]

720p WMV = High Definition video for PC
MS has sample clips for DL:
http://www.microsoft.com/windows/window ... wcase.aspx

My lappie (see sig) has ATI 7500. All MS OS's play these fine (yes, even Win98SE). CPU use goes as high as 80+ percent but action is smooth, audio is great.

Considering this I cannot help but wonder if too much 'stuff' is loading up at startup on your lappie. How many services are running? Mine has 26 or 27 with no bloatware, no AV running etc.

From your posted spec's HD video should run fine with the upgrade. Regarding heat, this system has never gone over 62c so maybe your heatsink needs to be reseated on the cpu/gpu, new artic silver applied etc.

BTW, when you look at the bottom of your heatsink MAKE SURE there are no scratches, dents, dings etc which could ever so slightly keep the heat sink OFF the CPU thus creating inefficient cooling!

Let us know how you make out.