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MediaPortal 1
MediaPortal 1 Talk
Best picture quality in Vista with Gigabyte GA-MA78GM-S2H
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<blockquote data-quote="kiwijunglist" data-source="post: 426523" data-attributes="member: 76888"><p><strong>This post is only relavant to people who have a HT frequency of 1000Mhz eg. Dual core AMD CPU and want to increase hardware acceleration (DXVA) performance of H264/VC1</strong></p><p></p><p>Think of the HT frequency as the "road" between the onboard graphics and the RAM</p><p>Since the onboard video shares RAM with the system, the "road" (HT frequency) determines how fast the onboard graphics card can do hardware acceleration</p><p></p><p>If you have an AMD X2 CPU then the HT frequency = 1000Mhz</p><p>If you have a phenom the HT frequency is a lot faster (Either 1800 or 2600Mhz i forget which)</p><p>Anyways that's why <strong>if you have a phenom (faster HT frequency) you get to do adaptive/vector interlacing etc...</strong></p><p></p><p>You can speed things up by overclocking the HT frequency (You can do this by increasing the FSB speed). Increasing the FSB speed also increases your CPU speed. This maybe undesirable so you should proabably decrease the CPU multiplier by the same amount to keep the CPU speed constant. To enable additional overclock functions press CTRL+F1 after loading bios on the main screen.</p><p></p><p>Eg. I have AMD X2 4200+ CPU with DDR 800 RAM</p><p></p><p><strong>My Bios default settings</strong></p><p></p><p>FSB = 200Mhz</p><p>CPU Multiplier = x11</p><p>CPU Frequency = 200 x 11 = 2200Mhz (Which is default CPU frequency for X2 4200+ CPU)</p><p>VGA Core = 500 Mhz</p><p></p><p>--> HT = FSB x 5 = 1000Mhz</p><p></p><p><strong>Suggested overclock</strong></p><p></p><p>FSB = 220</p><p>CPU Multiplier = x10</p><p>CPU Frequency = 200 x 10 = 2200Mhz (ie this is unchanged)</p><p>VGA Core = 600 Mhz</p><p></p><p>--> HT = FSB x 5 = 1200Mhz (A 20% increase in the speed of the "road" between the RAM and the HD3200)</p><p>--> The HD3200 also running 20% faster core speed</p><p>--> Note this also overclocks my RAM slightly by 10% as it now runs at 440Mhz (x2 = 880Mhz) instead of 400Mhz (x2 = 800Mhz)</p><p></p><p><em>Your settings maybe different depending on what speed your X2 cpu is</em></p><p></p><p><strong>Do this at your own risk. Read up about overclocking before you try this. Don't do this if you don't understand what you are doing as you can damage your computer. Overclocking may also void your warranty. IF YOU MAKE A MISTAKE YOU COULD FRY YOUR CPU / RAM / MOTHERBOARD</strong></p><p></p><p>That said a lot of people can overclock the VGA core up to 900 or more, most people can get it up to 700 at the minimun. I don't suggest overclocking the VGA core as it doesn't make a great deal of difference, the main difference you will see is increasing the HT frequency.</p><p></p><p><strong>I am currently using the following bios settings</strong></p><p></p><p>HD3200 UMA (Video memory size) = 512mb (This setting is under integrated peripherals i think)</p><p>VGA Core = 600</p><p>FSB = 275</p><p>CPU Multiplier = x8</p><p>I leave everything else on auto, including RAM timings and voltage.</p><p></p><p>This gives me an HT frequency of 1375Mhz. (CPU=2200Mhz and RAM=440Mhzx2=880Mhz) This makes mediaportal run much better for 1080i live TV. It doesn't give you any additional deinterlacing options, but makes things less suttery when the hardware acceleration is understrain (eg deinterlacing 1080i and running MP menus at the same time)</p><p></p><p>I should also add that i have a system fan blowing air over the northbridge (HD3200) heatsink. The HD3200 gets very hot by default especially if you have a rev1.0 board which has a tiny heatsink.</p><p></p><p>I didn't make the table below but it makes interesting reading:</p><p><img src="http://www.overclock.net/attachments/htpc/69378d1206884962-overclocking-780g-hd3200-hd3200-" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="kiwijunglist, post: 426523, member: 76888"] [B]This post is only relavant to people who have a HT frequency of 1000Mhz eg. Dual core AMD CPU and want to increase hardware acceleration (DXVA) performance of H264/VC1[/B] Think of the HT frequency as the "road" between the onboard graphics and the RAM Since the onboard video shares RAM with the system, the "road" (HT frequency) determines how fast the onboard graphics card can do hardware acceleration If you have an AMD X2 CPU then the HT frequency = 1000Mhz If you have a phenom the HT frequency is a lot faster (Either 1800 or 2600Mhz i forget which) Anyways that's why [B]if you have a phenom (faster HT frequency) you get to do adaptive/vector interlacing etc...[/B] You can speed things up by overclocking the HT frequency (You can do this by increasing the FSB speed). Increasing the FSB speed also increases your CPU speed. This maybe undesirable so you should proabably decrease the CPU multiplier by the same amount to keep the CPU speed constant. To enable additional overclock functions press CTRL+F1 after loading bios on the main screen. Eg. I have AMD X2 4200+ CPU with DDR 800 RAM [B]My Bios default settings[/B] FSB = 200Mhz CPU Multiplier = x11 CPU Frequency = 200 x 11 = 2200Mhz (Which is default CPU frequency for X2 4200+ CPU) VGA Core = 500 Mhz --> HT = FSB x 5 = 1000Mhz [B]Suggested overclock[/B] FSB = 220 CPU Multiplier = x10 CPU Frequency = 200 x 10 = 2200Mhz (ie this is unchanged) VGA Core = 600 Mhz --> HT = FSB x 5 = 1200Mhz (A 20% increase in the speed of the "road" between the RAM and the HD3200) --> The HD3200 also running 20% faster core speed --> Note this also overclocks my RAM slightly by 10% as it now runs at 440Mhz (x2 = 880Mhz) instead of 400Mhz (x2 = 800Mhz) [I]Your settings maybe different depending on what speed your X2 cpu is[/I] [B]Do this at your own risk. Read up about overclocking before you try this. Don't do this if you don't understand what you are doing as you can damage your computer. Overclocking may also void your warranty. IF YOU MAKE A MISTAKE YOU COULD FRY YOUR CPU / RAM / MOTHERBOARD[/B] That said a lot of people can overclock the VGA core up to 900 or more, most people can get it up to 700 at the minimun. I don't suggest overclocking the VGA core as it doesn't make a great deal of difference, the main difference you will see is increasing the HT frequency. [B]I am currently using the following bios settings[/B] HD3200 UMA (Video memory size) = 512mb (This setting is under integrated peripherals i think) VGA Core = 600 FSB = 275 CPU Multiplier = x8 I leave everything else on auto, including RAM timings and voltage. This gives me an HT frequency of 1375Mhz. (CPU=2200Mhz and RAM=440Mhzx2=880Mhz) This makes mediaportal run much better for 1080i live TV. It doesn't give you any additional deinterlacing options, but makes things less suttery when the hardware acceleration is understrain (eg deinterlacing 1080i and running MP menus at the same time) I should also add that i have a system fan blowing air over the northbridge (HD3200) heatsink. The HD3200 gets very hot by default especially if you have a rev1.0 board which has a tiny heatsink. I didn't make the table below but it makes interesting reading: [IMG]http://www.overclock.net/attachments/htpc/69378d1206884962-overclocking-780g-hd3200-hd3200-[/IMG] [/QUOTE]
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Best picture quality in Vista with Gigabyte GA-MA78GM-S2H
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