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| Thread ID: 50448 | 2004-10-20 23:52:00 | Over Clocking AMD | ApeNz (4220) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 283361 | 2004-10-20 23:52:00 | My mate has a AMD XP 2800 , cpu and a GIGABYTE GA-7N400 Pro V2.0 Socket A Motherboard , he says that he has enough fans etc and a good PSU but would want to overclock his CPU , how do you ? | ApeNz (4220) | ||
| 283362 | 2004-10-20 23:59:00 | > My mate has a AMD XP 2800 , cpu and a GIGABYTE > GA-7N400 Pro V2.0 Socket A Motherboard , he says that > he has enough fans etc and a good PSU but would want > to overclock his CPU , how do you ? Gigabyte make shitty overclocking motherboards which wont help, what sort of ram does your friend have? It might also be an idea to find out what HSF he has and what brand of PSU? Just because somebody says its good doesnt mean it is. Go use the mighty googlor and do a search for "how to overclock" there are heaps and heaps of guides on the internet. Its not just a matter of overclocking, you need to understand what your doing. Do you know anything about multipliers, FSB, vcore, vdimm? My advice would be to not overclock, you vague question suggests you dont have to knowledge to do it. If you do something wrong then it can be night night to 100's of dollars worth of hardware. |
Pete O'Neil (250) | ||
| 283363 | 2004-10-21 00:11:00 | >>If you do something wrong then it can be night night to 100's of dollars worth of hardware. You say that like its a bad thing? That Sir is the learning curve. |
metla (154) | ||
| 283364 | 2004-10-21 00:30:00 | I guess if you can afford to replace the parts or you own your own bussiness selling hardware then by all means blindly stumble into the unforgiving wilderness that is overclocking. | Pete O'Neil (250) | ||
| 283365 | 2004-10-21 04:10:00 | Almost all motherboards since the age of PIII 733 or so can support overclocking in the BIOS. I don't know what your level of skill is, so forgive me if you think I am stating the obvious. The CPU speed is determined by the External Frequency (or Bus Speed) x Multiplier. When we say External Frequency we mean 1/4 of the FSB. For example, a CPU with FSB 533 has an External Frequency of 133MHZ. One with a 400MHZ FSB has an External Frequency of 100MHZ. 99% of the time when overclocking we will be changing the Bus Speed, not the multiplier. This is because in all modern CPU's the multiplier is locked. It can be unlocked, but this requires modification to the CPU and could easily damage it. There are three other frequencies to take into account, they are PCI (normally 33MHZ), AGP (normally 66MHZ) and memory (normally 1/2 the DDR speed). When we up the Bus Speed, these will also rise unless they are locked by the motherboard. If they are, this gives more freedom in overclocking because you do not have to worry about stressing your RAM, PCI or AGP cards. To overclock, first go into your BIOS. You probably know how to do this already. Then, select the "Frequency / Voltage Selection" option on the top right. If you can't see it you may have to find the options elsewhere in the BIOS. Look for a Clock Frequency setting, and up this [b]Slightly[b]. The more you increase it, the hotter it will get. Then, after rebooting, look for the "PC Health" section of your BIOS. Leave the PC running in that screen for half an hour or so, and if the temperature rises above about 45 degrees (that is IDLE temperature remember), you should put the clock speed down. I will not go into voltage adjustment because this is only needed for higher overclocks, and is much more dangerous than simple FSB changing. If it won't boot, clear the BIOS using the jumper mentioned in the motherboard manual, and try a lower setting. HTH Cheers |
george12 (7) | ||
| 283366 | 2004-10-21 04:11:00 | Well I screwed that up. Only "Slightly" was meant to be bold. | george12 (7) | ||
| 283367 | 2004-10-21 04:13:00 | just a note to george12's post above, for p4 processors the external frequency is 1/4 of the fsb. but for am 32 bits (not sure on the 64 bits) the external frequency is 1/2 of the fsb speed | lagbort (5041) | ||
| 283368 | 2004-10-21 04:24:00 | i would have to agree with pete's post, if something goes really wrong you might have your self a new paper weight. and dont overclock with a stock HSF, it just wont cool enough...... | Prescott (11) | ||
| 283369 | 2004-10-21 05:05:00 | Umm isnt it the other way around for example the P4 has an external bus of 800MHz and a FSB of 200MHz? | Pete O'Neil (250) | ||
| 283370 | 2004-10-21 05:58:00 | exactly, p4 external frequency is 1/4 of fsb, (800/4= 200) whereas amd external frequency is 1/2 of fsb (400/2=200) | lagbort (5041) | ||
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