Peg Link Setup Option

[soldano]

My Asus A8NSLI Premium mobo setup has a "Peg Link" option, the manual only mentions it as related to the GPU performance.- Can somebody tell me how it works ?
Thanks

 

[BenchZowner]

Which option are you talking about cause there are 2 Asus options considering PEG...PEG Link Mode ( which is usually opening the Force 1x option ) or the other one , with PEG Link 'speed' set, with fast, faster, normal, slow options ?

 

[coolpurplefan]

I did find an article on rojakpot.com about that. Now only parts of that site are free.
In any case, there's a long and short option there that I have no idea how to set. But if I remember correctly, the one that says enable, disable you should set to disable (in my opinion anyway). It overclocks your video card by about 5% or whatever without asking your permission.

 

[soldano]

Originally posted by: BenchZowner
Which option are you talking about cause there are 2 Asus options considering PEG...PEG Link Mode ( which is usually opening the Force 1x option ) or the other one , with PEG Link 'speed' set, with fast, faster, normal, slow options ?

I referred to Peg link mode, the second you mentioned, with the following options: auto, slow, normal, fast and faster.-
I am curious also about the other 2 settings: Peg Root and Peg Buffer Length.-
Thanks

 

[BenchZowner]

Depending on your card you might be able to run it @ faster or fast, performance doesn't change actually between these settings but for the sake of trying just try it out, it can't harm your PC...you might just have to clear CMOS and re-set the values if it gets totally unstable/not POSTing.

Asus never disclosed any real information on these settings though.
Some people even insist that PEG Link Mode overclocks your card automatically but I don't think that it's doing that ( check with RivaTuner for changes in your graphics card clocks when trying out the settings )

Here's what Asus 'disclosed' in the past:

[ASUS]Let's begin with PEG Link Mode, which has received a lot of interest recently. This feature, found only on ASUS 915P- and 925X-based motherboards, allows users to raise GPU and VGA memory throughput via the motherboard BIOS the same way system bus and memory bus are tweaked. PEG Link Mode enables powerful video performance on DX8 and DX9 applications. ASUS engineers carefully fine-tuned the parameters for every single PCI-Express card to provide system stability during high-speed graphics operation.
Under PEG Link, there are five settings for this unique function: Auto, Slow, Normal, Fast and Faster. The default setting is Auto, which means the motherboard will automatically adjust for the correct frequency according to system configuration. For advanced users who demand more precise overclocking, they can select the other four settings to achieve the most suitable graphics card performance.[/ASUS]

 

[soldano]

Originally posted by: BenchZowner
Depending on your card you might be able to run it @ faster or fast, performance doesn't change actually between these settings but for the sake of trying just try it out, it can't harm your PC...you might just have to clear CMOS and re-set the values if it gets totally unstable/not POSTing.

Asus never disclosed any real information on these settings though.
Some people even insist that PEG Link Mode overclocks your card automatically but I don't think that it's doing that ( check with RivaTuner for changes in your graphics card clocks when trying out the settings )

Here's what Asus 'disclosed' in the past:

[ASUS]Let's begin with PEG Link Mode, which has received a lot of interest recently. This feature, found only on ASUS 915P- and 925X-based motherboards, allows users to raise GPU and VGA memory throughput via the motherboard BIOS the same way system bus and memory bus are tweaked. PEG Link Mode enables powerful video performance on DX8 and DX9 applications. ASUS engineers carefully fine-tuned the parameters for every single PCI-Express card to provide system stability during high-speed graphics operation.
Under PEG Link, there are five settings for this unique function: Auto, Slow, Normal, Fast and Faster. The default setting is Auto, which means the motherboard will automatically adjust for the correct frequency according to system configuration. For advanced users who demand more precise overclocking, they can select the other four settings to achieve the most suitable graphics card performance.[/ASUS]

I tried all the 5 options and couldnt see any variation from the default memory/core settings in Riva Tuner.-
And by the way, can you explain what are the 2 other settings:
Peg Root and Peg Buffer Length ?
Thanks

 

[coolpurplefan]

Originally posted by: soldano
And by the way, can you explain what are the 2 other settings:
Peg Root and Peg Buffer Length ?
Thanks

I asked Adrian Wong on the rojakpot forums. I don't know if the forum is still there. I know I looked up the thread several times and he never really answered. He kept saying he didn't have the time and was going to look it up later.

He's an expert on BIOS so you'd think he could have found out.

 

[BenchZowner]

The PEG Root Control and PEG Link mode are Asus "features", not unified or standardized options...so all we can do is get the information from Asux ( they'll never disclose what they're really doing ) [ actually there's no performance gain/loss with these options so it's not even worth looking after them ].