RayMacx64 Posted March 8, 2010 Share Posted March 8, 2010 Has anyone been successful with this card SAPPHIRE 100245HDMI Radeon HD 4850 512MB 256-bit GDDR3 rev 2. If so please post the 1 The steps you took to get it to work 2 The kexts in your extra folder 3 The bootloader version that you are using 4 A link to the files that you used if possible I have tried numerous different ways and still have had no luck in getting this card to work to its full potential. I can get it to work in 10.6.2 if i delete all ati kexts, but will only have 1024 x 768 resolution available. Link to comment https://www.insanelymac.com/forum/topic/212502-anyone-with-a-working-sapphire-100245hdmi-radeon-hd-4850-512mb-256-bit-gddr3-rev-2/ Share on other sites More sharing options...
AustinDoc Posted March 9, 2010 Share Posted March 9, 2010 See my post here. I have your card. http://www.insanelymac.com/forum/index.php...amp;pid=1425614 Has anyone been successful with this card SAPPHIRE 100245HDMI Radeon HD 4850 512MB 256-bit GDDR3 rev 2. If so please post the 1 The steps you took to get it to work 2 The kexts in your extra folder 3 The bootloader version that you are using 4 A link to the files that you used if possible I have tried numerous different ways and still have had no luck in getting this card to work to its full potential. I can get it to work in 10.6.2 if i delete all ati kexts, but will only have 1024 x 768 resolution available. Link to comment https://www.insanelymac.com/forum/topic/212502-anyone-with-a-working-sapphire-100245hdmi-radeon-hd-4850-512mb-256-bit-gddr3-rev-2/#findComment-1425649 Share on other sites More sharing options...
IceNio Posted March 9, 2010 Share Posted March 9, 2010 What about Sapphire 4830 512 dvi-svideo-dvi ? I tried the netkas exotic patch for 10.6.2 , but I got some hiccups when moving the mouse and in general the whole GUI is kinda slowing from time to time ? Then I tried adding the EVOenabler kext , and boot.plist from netkas 10.3 pc-efi , but the card started to spin the FAN really hard and then stops , and then again and again and continued to do this spin at 100% and stop fully. Reinstalling 10.6 for the 5th time at the moment , I do take ANY ideas considering this video card. (10.6 vanilla) edit-all working prefectly. legacy4800 controller from netkas + his drivers. changed the dvi port for the mouse stutters ! 10.6.2 Vanilla Link to comment https://www.insanelymac.com/forum/topic/212502-anyone-with-a-working-sapphire-100245hdmi-radeon-hd-4850-512mb-256-bit-gddr3-rev-2/#findComment-1425708 Share on other sites More sharing options...
RayMacx64 Posted March 9, 2010 Author Share Posted March 9, 2010 AustinDoc, how did you do a fresh install of Snow Leopard ? Everything i have tried (with the 4850 installed ) gives me a garbled or black screen. The only way i can install the retail disk is with my old 2600HD card installed. Link to comment https://www.insanelymac.com/forum/topic/212502-anyone-with-a-working-sapphire-100245hdmi-radeon-hd-4850-512mb-256-bit-gddr3-rev-2/#findComment-1425938 Share on other sites More sharing options...
AustinDoc Posted March 11, 2010 Share Posted March 11, 2010 Use TonyMacOSX [url="http://www.insanelymac.com/forum/topic/279450-why-insanelymac-does-not-support-tonymacx86/"]#####[/url] CD. Since it is a ATI card, you have to boot up with the"-x" command. This will allow you to boot into "safe mode". You can then finish the installation and then install additional software. AustinDoc, how did you do a fresh install of Snow Leopard ? Everything i have tried (with the 4850 installed ) gives me a garbled or black screen. The only way i can install the retail disk is with my old 2600HD card installed. Link to comment https://www.insanelymac.com/forum/topic/212502-anyone-with-a-working-sapphire-100245hdmi-radeon-hd-4850-512mb-256-bit-gddr3-rev-2/#findComment-1426785 Share on other sites More sharing options...
RayMacx64 Posted March 11, 2010 Author Share Posted March 11, 2010 Thats the same boot cd that i used. I am beginning to think it must be my monitor then, because I can not boot up even with -x and this card installed. I have found a old Mac CRT that I had, and it will boot with it with -x and dvi to vga adapter only. I noticed when it booted with it, the refresh rate was at 85 Hz, and my Samsung 2343 bwx Lcd monitor only does 60 Hz. What type of monitor did you use ? Link to comment https://www.insanelymac.com/forum/topic/212502-anyone-with-a-working-sapphire-100245hdmi-radeon-hd-4850-512mb-256-bit-gddr3-rev-2/#findComment-1426857 Share on other sites More sharing options...
AustinDoc Posted March 12, 2010 Share Posted March 12, 2010 I have the I-inc iH282 28" monitor. Initially it was a "blank" screen as if the video was out. I used "screen sharing" from another mac to adjust the resolution settings and it worked. I am able to get 60Hz and 75 Hz on this monitor. I'm not sure how this worked but it worked. I tried to get higher resolutions with higher frequencies - 1920x1440 @ 75Hz but it is a no go. The highest setting I am able to achieve is 1920x1440 @ 60Hz. Thats the same boot cd that i used. I am beginning to think it must be my monitor then, because I can not boot up even with -x and this card installed. I have found a old Mac CRT that I had, and it will boot with it with -x and dvi to vga adapter only. I noticed when it booted with it, the refresh rate was at 85 Hz, and my Samsung 2343 bwx Lcd monitor only does 60 Hz. What type of monitor did you use ? resolution_pic.tiff Link to comment https://www.insanelymac.com/forum/topic/212502-anyone-with-a-working-sapphire-100245hdmi-radeon-hd-4850-512mb-256-bit-gddr3-rev-2/#findComment-1427490 Share on other sites More sharing options...
RayMacx64 Posted March 29, 2010 Author Share Posted March 29, 2010 Here is what is strange about this card. I can log into my desktop with Windows 7 and RealVNC and it shows the correct info for my graphic card and my display. I can go to system prefences and change the resolution and frequency to all availble ones that my card supports and it still has a black box on the actually samsung monitor that says "Not Optimum Mode 2048x1152@60Hz" but that is exactly what it is set as. Does anyone have any ideas what the problem might be, I am at the end of my rope on this one and about ready to buy a different card. Link to comment https://www.insanelymac.com/forum/topic/212502-anyone-with-a-working-sapphire-100245hdmi-radeon-hd-4850-512mb-256-bit-gddr3-rev-2/#findComment-1436158 Share on other sites More sharing options...
AustinDoc Posted April 2, 2010 Share Posted April 2, 2010 RayMac, Sorry about your troubles with your monitor. I tied re-installing using the same procedure I used and the end result is the same. I can use both the VGA and DVI ports without any problems. I have not tried dual monitor but the 1920x1200 resolution works perfectly. Link to comment https://www.insanelymac.com/forum/topic/212502-anyone-with-a-working-sapphire-100245hdmi-radeon-hd-4850-512mb-256-bit-gddr3-rev-2/#findComment-1440643 Share on other sites More sharing options...
RayMacx64 Posted April 9, 2010 Author Share Posted April 9, 2010 I finally solved my problem with buying a EVGA GEForce 9800 GTX+ it works flawlessly with only graphicsenabler=yes. Link to comment https://www.insanelymac.com/forum/topic/212502-anyone-with-a-working-sapphire-100245hdmi-radeon-hd-4850-512mb-256-bit-gddr3-rev-2/#findComment-1444916 Share on other sites More sharing options...
Marley05 Posted May 17, 2010 Share Posted May 17, 2010 RayMac, Sorry about your troubles with your monitor. I tied re-installing using the same procedure I used and the end result is the same. I can use both the VGA and DVI ports without any problems. I have not tried dual monitor but the 1920x1200 resolution works perfectly. im really thinking of getting this card at the moment can u please tell me if dual monitors is working? thanks! Link to comment https://www.insanelymac.com/forum/topic/212502-anyone-with-a-working-sapphire-100245hdmi-radeon-hd-4850-512mb-256-bit-gddr3-rev-2/#findComment-1470017 Share on other sites More sharing options...
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