ritwickgupta said:
hi techies.....
overclosking is the new hot topic in the computing world now days???? but many ppl really don know how to do it. or they go n refer some idiotic website for doin it n in the end damage their computer. so i invite all the tecjies here to share their views about overclocking.
the information shud b given in the given format
1. wot exactly is overclocking?
2. wot r the components in a cpu that can b overclocked ?
3. how can they b overclocked?
4. upto wot limit they can b overclocked?
5. wot r the preferable ways of overclocking?
6. wot r the side effects of overclocking n how can they b overcome? ( like the bst cooling solutions)
waiting for ur responces
First take a look at the forums at
www.planetamd64.com for a comprehensive guide to o/cing an AMD 64 CPU.
Now for answering your questions.
1-It is something where you run the components over their rated speeds to achieve greater performance without investing in higher priced components which would give similar performance results. You can o/c your CPU, GPU, RAM and also run the HyperTransport frequency over their rated limits (2000Mhz for AMD socket 939 CPU's)
2-What do you mean by components in a CPU? The final operating frequency in a CPU is a product of the CPU multiplier and the HTT. Eg: In case of Athlon 64 3000+, socket 939, the multiplier is 9 and the HTT is 200Mhz, giving a final operating frequency of 200 X 9 = 1800Mhz. This multiplier can only be reduced in A64, except in Athlon 64 FX CPU's where it can be increased. That is why they are most loved in the o/c ing world and are so expensive. So if we want to o/c a 3000+ (939) then it leaves us only the option to increase the HTT. There are options in the M/b BIOS to set all these values and also the Hypertransport frequency and multiplier. In 3000+, the HT multiplier is 5 and the HT freq. is 200Mhz duplex. So the final HT freq. is 200X5X2=2000Mhz. There are also options to set the RAM timings and the RAM frequency. Remember by default the RAM runs in sync with the HTT. Lower RAM timings mean greater performance.
3-For a comprehensive guide as to how to o/c the CPU, check out some of the forums online. But as a rule, keep to the following procedure. We have to find the maximum of CPU HTT freq, max RAM freq, and max HT freq and combine all three to get a optimum value.
4-Limit is set by the max HTT and max RAM freq.
5-I usually prefer the BIOS to set all values. There are some windows based utilities but something might not be correctly set there. Bios is the safest place.
6-Side effects of o/cing is higher temperatures which can be overcome by installing 3rd party cooling solutions. Coolers can be of CPU, GPU, chipset, RAM, etc. But mostly CPU and GPU coolers are used. Good companies of cooling solutions are Zalman, Arctic Cooling, Antec, Thermaltake, etc. One of the good zalman GPU cooler is VF900Cu and for CPU is 9900Cu or something similar, I don't remember the name.
Another side effect is the reduced life of the components.
