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_in_peace_
Joined: 21 Jul 2009
Posts: 152
Location: Sweden
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| Posted: Fri Mar 26, 2010 1:24 pm Post subject: Problem with Refreshrate for Sapphire HD4650 |
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Hello!
When i use 720p i can only choose 60hz
Is there a way to fix this?
Setup:
P4 3.2 Ghz
2GB Ram
Sapphire Radeon HD 4650 1GB AGP
Moome 1.3
Win XP SP3
And what is a powerstrip, is it a ext app?
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AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Fri Mar 26, 2010 2:05 pm Post subject: |
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http://entechtaiwan.com/util/ps.shtm
Yes powerstrip is an external app. It's used to set custom resolution. Are you sure your ATi card doesn't give you the option to try 1280x720 @72Hz?
_________________
Tech support for nothing
CRT.
HD done right!
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_in_peace_
Joined: 21 Jul 2009
Posts: 152
Location: Sweden
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| Posted: Sat Mar 27, 2010 11:48 am Post subject: |
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Thank's! it seems like a nice program
Do you think i can solve it with that app?
No i can only choose 50 and 60Hz in that resolution
I use
Catalyst 9.8 driver (Windows XP 32/64bit) for HD4650 AGP only for Windows XP 32-bit Edition (2009)
and
Catalyst 9.9 HOTFIX for HD2k/HD3k/HD4k AGP cards and XP 32-bit for Windows XP 32-bit Edition
That hot fix wasn't any hot for me. It's all stuck att 60hz
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akajester
Joined: 09 Jul 2008
Posts: 934
Location: Wisconsin
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| Posted: Sat Mar 27, 2010 12:06 pm Post subject: |
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in winxp, go into the display properties and make sure you uncheck the "hide modes this display doesn't support" box. Then load this as your monitor driver;
http://www.videoi.com/~pietro/monitor/
see if that opens up the resolutions for you.
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_in_peace_
Joined: 21 Jul 2009
Posts: 152
Location: Sweden
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| Posted: Sat Mar 27, 2010 3:29 pm Post subject: |
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Thank's!
It works really fine with Powerstrip now... Is 72hz to recomend for ~1480 x 810p?
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_in_peace_
Joined: 21 Jul 2009
Posts: 152
Location: Sweden
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| Posted: Tue Apr 06, 2010 3:46 pm Post subject: |
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What is the recommended setting for H-sync when i using 71,928Hz at V-sync?
Thank's
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Ile
Joined: 09 Mar 2006
Posts: 1491
Location: Jyväskylä, Finland
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| Posted: Wed Apr 07, 2010 10:34 am Post subject: |
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| _in_peace_ wrote: | What is the recommended setting for H-sync when i using 71,928Hz at V-sync?
Thank's |
If you mean horizontal scan rate, powerstrip calculates it from all other settings. Smaller is better since it stress projector less. But you can't drop horizontal porches and sync width too much, that will cause raster ringing.
Vertical porches and sync width can be much smaller without problem.
Have you tested 1080i96? These custom timings work great in my BG808s.
G70 might work also with smaller horizontal porches...
If you watch SD PAL material, then 768p75 is one option for that material.
G70 might work also with smaller horizontal porches...
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_in_peace_
Joined: 21 Jul 2009
Posts: 152
Location: Sweden
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| Posted: Sat Apr 17, 2010 8:27 am Post subject: |
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Thanks Ile!
I think the last one works fine for me 
Do you know where i can swap between YCBCr and RGB?
On Playstation 3 i remember RGB / limited was the most satisfying
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