View Full Version : Old system hd 4650 poor performance

03-04-2010, 05:47 PM
I'm trying to reuse my old pentium d system and use it to play HD video on my lcd T.V
I recently purchased an XFX hd 4650 agp from playtechhttp://www.playtech.co.nz/afawcs0139235/CATID=299/ID=6903/SID=1051025654/productdetails.html
but when i tried playing 720-1080p videos on it, it has a massive lag,and also i get poor frame rates in games e.g 50 fps in cs:s on low
i know this card can easily play hd content and i can max cs:s frames on my laptop with onboard graphics

PC specs
CPU: Pentium D 805 @ 2.7ghz (2 cores)
Graphics card: xfx Hd 4650 agp
Motherboard: acer e61ml

Got the pc pretty cheap in like 2006
Does anyone have any ideas....anyone know why?
please help


Speedy Gonzales
03-04-2010, 05:56 PM
More ram would help. Is a Pentium d like a celeron? I would change the CPU. What version of windows is on it?

03-04-2010, 07:11 PM
I could almost do hd on a celeron 1.6ghz so cpu should be fine, if theres any lag i would think minimal.

When playing a video have a look at task managers system monitor and see if the cpu or ram are maxing out

03-04-2010, 07:59 PM
@ Speedy gonzales
its on windows xp and i think a pentium d is similar to a celeron but closer to the mid rather than low end

03-04-2010, 08:04 PM
the cpu seemed to be maxing out when i first ran the card but after disabling HD audio it was fine.
The ram isn't even coming close to maxing out
so i have no idea what the problem is lol

04-04-2010, 08:34 AM
Because just throwing a ne w card into an old machine doesn't help.
You still have a bottleneck.
More RAM for sure, but then the CPU will be the problem.

04-04-2010, 08:48 AM
Did you uninstall any old graphics card drivers and install the drivers for the new card?

04-04-2010, 10:14 AM
I can do Full HD with only minimal frame drops on a 2Ghz Pentium D with an nVidia 9400GT.

The fact your CPU is significantly faster and the GPU significantly newer & more powerful means you should be able to run it. RAM *may* play a factor but I doubt that your video application is going to use much RAM decoding Full HD video, specifically Windows Media Player uses around 120MB for me. On an XP system 1GB should be sufficient.

The CPU is definitely sufficient
The RAM is sufficient
The GPU is way more than sufficient
This leaves software configuration and other background applications.

For the record the Pentium D the predecessor of the Core2, but is not to be confused with the Pentium Dual-Core which came later on down the track. It's basically a Pentium processor with two cores IIRC, and comparing the likes to "performance of a Celeron" is a poor way of comparing CPU's, mostly because it's a totally inaccurate way of doing-so ;)

04-04-2010, 01:30 PM
I have tried serveral things in attempt to fix this problem
i have googled the card and i recognised the fact that many people were having problems with the microsoft UAA bus driver for high definition audio....disabled that, no help
i thought my power supply might not be giving my graphics card enough power so i swapped the supply with a 750w modular power supply from my main computer to see if that makes a difference...no change
I checked for any possible conflicts between ati catalyst/drivers and other programs installed, there was no obvious conflicts.
I had a couple of gigs of ram in another computer i had lying around...installed that in the computer giving it a total of 2 gigs of ram. It slightly improved performance in games but not so much with the HD video content.

I know its somekind of a hardware/software issue but i CANNOT find the problem
My computer would run 720p fine with a geforce 7600gs fine(failed miserably with 1080p content).
With the addition of the new graphics card the system is not even playing 720p (i mean it will play but with a Massive lag).
This can't be right...i mean a way better graphics card and the computer is performing worse than with the old graphics card.
I still think it could be the old nvidia drivers.
But i have uninstalled EVERY trace of the nvidia drivers from my system.

Does anyone have anything to add to this? anything i'm doing wrong here?

04-04-2010, 01:49 PM
What software are you using to display the video?

04-04-2010, 02:08 PM
Tried everything; windows media player, vlc player, win dvd, vlc player, itunes and even tryed playing hd content on youtube etc....just a big lag

04-04-2010, 03:24 PM
Are you able to try the card in another system to check its not a faulty card?

04-04-2010, 06:25 PM
opps said vlc player twice lol

i have tried it in a friends old rig...seems to perform fine even with 1080p video. Hes got a pentium d 820@ 2.8ghz system + 1gb ram+ 400w psu
Almost 4 times the performance in games with the same graphics card on a slighly better CPU...i mean i would accept maybe twice the performance but 4x, This can't be down to a bottleneck as people get better performance from pentium 4 processors.

04-04-2010, 08:44 PM
If there's not much on the system the easiest way to eliminate any software fault would be a complete reinstall, it could save a lot of time troubleshooting.

04-04-2010, 09:21 PM
AGP settings in the bios?

04-04-2010, 10:24 PM
as much as i'd like to do a total reinstall...i have to much.
But....i've used another hard drive and installed the OS on it...there was a very slight improvement but not anything worth very much consideration.

Speedy Gonzales
04-04-2010, 10:28 PM
Probably be better, if you updated / replaced the mobo and cpu and ram. And the videocard if its AGP

04-04-2010, 10:53 PM
this is just my old computer... the whole point of buying the graphics card was to use it as a home theater pc.
i have my main computer there but its a hassle having to move it near the t.v just to play hd content from my computer.

Anyways....after fiddling with the bios setting and slightly overclocking the video card i've got it playing 720p at full frames...now i just need to sort out the 1080p lag

08-04-2010, 10:32 PM
okay now i've got it working at about 95% frames with 1080p content....very good for my cpu
and all it took was a lot of fiddling

08-04-2010, 11:04 PM
Using different players, such as MPC-HC with the CoreAVC codec may assist.
Some apps play back "better" than others (Use less resources)

08-04-2010, 11:29 PM
just adding that I found VLC more cpu intensive than MPclassic playing h264 on xp pro,on a marginal machine with ancient geforce 5200 or similar,or 7600.