PCI twinhan dtv

[Guest Graham]

I have a pci tv card , twinhan, but ive never mamanged to run any

software except the original install disk ... now .. when i view sky

news on ch82 , the pog locks and shuts down , sending a error report

as well

 

If I download the latest drivers etc from the web site .. everything

installs and works .. but the audio and video are slow , juddery , and

prone to periods of lock up ....

 

Any one any ideas . appart from ditch the card .. ??

 

the system is a intel P4 3.2 Ghz , pf21-ext m-board - 250 mb pci-ext

navidia video card ... 2 ghz ram ... not sure if its dual core ..

shows as 2 cpus on the device driver list ... winxp-pro

 

all the other prog's run fine ... media players , dvd video ..no

problems ..

 

everything is up to date ...

[Guest R. McCarty]

Re: PCI twinhan dtv

 

Which PCI slot is card installed in ( Count from the Video - either

AGP or PCIe ). Usually most motherboards only provide one or

two slots with independent IRQ mappings. The sluggish response

may be due to IRQ sharing. While XP can handle this in normal

situations, there are some cards that do not perform well when they

are used in a "Shared IRQ" setup. Most motherboard manuals have

a IRQ map show how the slots are hard wired.

 

"Graham" <g0nbd@hotmail.com> wrote in message

news:79e5a06e-395c-45e5-8056-37f0c972897d@17g2000hsk.googlegroups.com...

>I have a pci tv card , twinhan, but ive never mamanged to run any

> software except the original install disk ... now .. when i view sky

> news on ch82 , the pog locks and shuts down , sending a error report

> as well

>

> If I download the latest drivers etc from the web site .. everything

> installs and works .. but the audio and video are slow , juddery , and

> prone to periods of lock up ....

>

> Any one any ideas . appart from ditch the card .. ??

>

> the system is a intel P4 3.2 Ghz , pf21-ext m-board - 250 mb pci-ext

> navidia video card ... 2 ghz ram ... not sure if its dual core ..

> shows as 2 cpus on the device driver list ... winxp-pro

>

> all the other prog's run fine ... media players , dvd video ..no

> problems ..

>

> everything is up to date ...

[Guest Paul]

Re: PCI twinhan dtv

 

Graham wrote:

> I have a pci tv card , twinhan, but ive never mamanged to run any

> software except the original install disk ... now .. when i view sky

> news on ch82 , the pog locks and shuts down , sending a error report

> as well

>

> If I download the latest drivers etc from the web site .. everything

> installs and works .. but the audio and video are slow , juddery , and

> prone to periods of lock up ....

>

> Any one any ideas . appart from ditch the card .. ??

>

> the system is a intel P4 3.2 Ghz , pf21-ext m-board - 250 mb pci-ext

> navidia video card ... 2 ghz ram ... not sure if its dual core ..

> shows as 2 cpus on the device driver list ... winxp-pro

>

> all the other prog's run fine ... media players , dvd video ..no

> problems ..

>

> everything is up to date ...

 

In addition to the possibility of an IRQ issue, you may

want to consider what the software is doing with the data.

 

On some TV cards, they do it like this -

 

*******

Preview video only, or Preview video and record at the same time

 

TV_Card ----- DMA_PCI_Bus --+ +--- Copy_to_video_card_frame_buffer

| |

Write_To_Disk Read_From_Disk

| |

(DMA_PCI_Bus) (DMA_PCI_Bus)

| |

Disk_Drive_for_PVR_Data

 

*******

Record video only (no preview, just record it)

 

TV_Card ----- DMA_PCI_Bus --+

|

Write_To_Disk

|

(DMA_PCI_Bus)

|

Disk_Drive_for_PVR_Data

 

*******

Playback pre-recorded video (doesn't use the card at all)

 

+--- Copy_to_video_card_frame_buffer

|

Read_From_Disk

|

(DMA_PCI_Bus)

|

Disk_Drive_for_PVR_Data

 

*******

 

In those examples, "preview" or "live viewing" can be stressful

because of the datarates involved. For example, if the Disk_Drive_for_PVR_Data

was connected to the SIS180 chip on the PF21 Extreme motherboard, there

could be multiple 20MB/sec streams of data on the fly.

 

Try recording video (without looking at the images), then try

playback of that recorded content, and see if it is smoother.

 

Paul

[Guest Graham]

Re: PCI twinhan dtv

 

On Oct 25, 11:13 pm, "R. McCarty" <PcEngWork-NoSp...@mindspring.com>

wrote:

> Which PCI slot is card installed in ( Count from the Video - either

> AGP or PCIe ). Usually most motherboards only provide one or

> two slots with independent IRQ mappings. The sluggish response

> may be due to IRQ sharing. While XP can handle this in normal

> situations, there are some cards that do not perform well when they

> are used in a "Shared IRQ" setup. Most motherboard manuals have

> a IRQ map show how the slots are hard wired.

>

> "Graham" <g0...@hotmail.com> wrote in message

>

> news:79e5a06e-395c-45e5-8056-37f0c972897d@17g2000hsk.googlegroups.com...

>

>

>

> >I have a pci tv card , twinhan, but ive never mamanged to  run any

> > software except the original install disk ... now .. when i view sky

> > news on ch82  , the pog locks and shuts down , sending a error report

> > as well

>

> > If I download the latest drivers etc from the web site .. everything

> > installs and works .. but the audio and video are slow , juddery , and

> > prone to  periods of lock up ....

>

> > Any one any ideas . appart from ditch the card .. ??

>

> > the system is a intel P4 3.2 Ghz , pf21-ext  m-board - 250 mb pci-ext

> > navidia video card ... 2 ghz ram ... not sure if its dual core ..

> > shows as 2 cpus on the device driver list ... winxp-pro

>

> > all the other prog's  run fine ... media players , dvd video ..no

> > problems ..

>

> > everything is up to  date ...- Hide quoted text -

>

> - Show quoted text -

 

...... Ok thats a good point .. at this momnet I dont know which slot

its in ..I will have a look at the book , the mother board has 3 pci

slots, listed as 32 bit , pci 2.3 , 133mb/s max throughput ... and

qty 1 pci express x16 (pci-e1) which has the video card in it

 

I dont see any referance to the use of the 3 pci slots ... only two

are white and the middle is yellow .. if that means anything ??

 

tnx - G ..