noob question :x

[pkitchen]

i see a lot of people referring to an "HT Link". i am trying to understand what it is, and how it fits with overclocking, and what it should be set at. my BIOS has three different options under it, one that says K8<->NB, NB->SB, and SB->NB. or something like that? which one should i change and what should it be set at? currently at 239 HTT x10 with memory dropped to 667. thank you

 

[epikz]

239x10= 2390mhz which is 2.4ghz increase the htt interval about 2-3 each time. until you are happy with your oc

 

[(cf)Eclipse]

i see a lot of people referring to an "HT Link". i am trying to understand what it is, and how it fits with overclocking, and what it should be set at. my BIOS has three different options under it, one that says K8<->NB, NB->SB, and SB->NB. or something like that? which one should i change and what should it be set at? currently at 239 HTT x10 with memory dropped to 667. thank you

they're all ht links.. just between the cpu and northbridge and between the northbridge and southbridge

i assume they're labeled as 1000mhz, 800mhz, 600mhz, etc? just divide the speed shown in the option by 200 to get what multiplier it is.. so 800mhz would be 4x.. at 239mhz and 4x, the ht link is running at 956mhz. i guess i would keep all the options the same for consistancy's sake

 

[Smoove910]

You'll want your HTT to equal less than 1000mhz...

FSB x HTT = less than 1000mhz

So if your FSB is at 200mhz with a 5x HTT, you have 1000mhz, but if you overclock to 210mhz x 5x HTT, you are over your limits... back it to a 4x HTT and it'll probably work in this scenario.

Try 210 fsb with a 4x HTT, this will equal 840 which is good. In fact, you can logically hit 250 fsb with a x4 HTT before you start seeing problems and potentially have to step to a 3x HTT...

Make Sense???

Here's a blurb I've read...

Overclocking Technique

You are essentially in control of the speeds of four frequencies; the CPU speed, the memory bus, the HTT, and the HyperTransport bus. Overclocking the CPU is done pretty much as it always has been, except that the HTT substitutes the front side bus.

The HTT can almost always go just as high as you need it, granted that you don’t exceed the motherboard’s maximum supported HyperTransport speed by too much. For systems that support a 1000MHz HyperTransport data rate, for example, one could use a 200MHz HTT with a 5x LDT multiplier. However, using 5x250 would result in an effective 1250MHz, which would almost certainly lead to instability. The LDT could be dropped to 4x, allowing for a higher HTT speed with stability, 250, but resulting in the same 1000MHz HyperTransport data rate as default. The HTT being increased alone doesn’t accomplish anything; unlike increasing the front side bus does other platforms. Even raising the HyperTransport speed doesn’t add any noticeable increase in performance, as the bus is already so wide, that saturating it isn’t very likely. For this reason, the nF3 250’s and 150’s perform quite similarly to one another. My suggestion would be to leave the HyperTransport speed at as close to stock as possible, and raise the HTT only as much as necessary. Unless you’re using an 8x multiplier, there shouldn’t be much reason to go far above 300MHz in many cases.

Here's the link:
http://www.ocforums.com/showthread.php?t=306418

Some more reading:
http://www.madshrimps.be/?action=ge...=144&howtoID=58

http://www.overclockers.com.au/wiki..._A64_Processors

I think this should suffice for reading material... simply research about HTT and whatnot and it will backup our claims of the 5x setting needing to be lowered.

Good Luck!

Just an FYI that I simply copied this from a different thread so I wouldn't have to type the same points out again.. . This is some very good material and should be utilized if overclocking...
http://www.hardforum.com/showthread.php?t=1088682

 

[pkitchen]

thanks!