Some serious video problems caused by DPAD?

[Zbox]

Every system I have running on a WinFast K7NCR18GM board (about 15 of them total, all using the onboard video) experiences all sorts of video problems while running the program. As long as the program is running, horizontal bars appear on the screen, there's tearing, etc... The second the program is closed the problem goes away.

Any idea?

Thanks in advance.

 

[Confused]

Hrm, sounds interesting...

Are those nForce/nForce2 boards? If so, how many sticks of RAM do they have?

 

[BlackMountainCow]

Sounds like a nforce2 problem. IIRC that board does not support DualChannel 400, right? This tearing problem and choppy sound is a known problem when using 100% CPU load plus lots of RAM used, cause then the RAM is "stolen" from the integrated gfx chip and this tearing effect happens. The only solution I know is to have the board work in DualChannel as this will boost its performance by 15 - 25% due to the integrated gfx chip.

Does that tearing also occur when DPAD is the only prog running?

 

[Zbox]

yea, nforce2 board. some of the systems have single 512 sticks others contain two 256 sticks.

and the problem does happen when dpad is the only thing running

 

[Confused]

Is it both systems with and without 2 sticks of memory?

Are you sure the ones with 2 sticks are running in dual channel? There should be 3 slots, that look like | || , make sure there is one stick in each "set" of banks

Also...could you try another DC application on it, see if it occurs when running another CPU intensive application


Garry

 

[Zbox]

the problem only occurs in dpad... I used these machines before for running d.net rc5 and never saw a single video glitch

however, the problem was resolved by going dual channel. now what do i do about single stick systems?

 

[Confused]

Go dual-channel?

Seriously...the peformance of the onboard video (and therefore the rest of the system) sucks if they are not in dual-channel! Otherwise, add a cheap PCI or AGP video card if that will be cheaper than RAM


Garry

 

[Zbox]

I suppose I can get some more ram for a few computers... but why does this problem only happen in dpad and not other crunchers?

 

[Confused]

Originally posted by: Zbox
I suppose I can get some more ram for a few computers... but why does this problem only happen in dpad and not other crunchers?

My *guess* is that it is RAM intensive, and uses parts of the RAM that other DC projects don't?

Maybe you could hit up the DPAD forum and post about it there


Garry

 

[Zbox]

took it to the forum in bug reports; we'll see what Stephen says

thanks for the help, Confused

 

[Confused]

No worries

If/when it gets resolved, be sure to post back here so we can see what happened, and use this thread for reference in the future


Garry

 

[amdxborg]

Yeah hope Stephen has a solution for you!!!