I can overclock my 2500+ to 3200+ easy, (Yes, its unlocked) I can do anything I want with it. ok. I can raise the FSB to 200. now, wtf are multipliers? i dont know how they work. An explaination would be great.
AMD Athlon XP 2500+ (unlocked)
ABIT NF7 mobo
ATI Radeon 9600XT 128mb
(2x) 256 DDR SDRAM = 512
CoolerMaster Aero 7 CPU Fan
80GB 7200 8mb cache HD
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Basically, in a nutshell, multipliers are what takes your cpu up to its speed. It is a number that you multiply the FSB by to get your desired speed. Say you have an XP1800+ like me...and you want to overclock it. I took my FSB up to 200, and had the multiplier set to 11. You take the FSB (200), and multiply it by the multiplier(11), to get the desired speed. in my case it was 2200 (200x11=2200)...so all they really do is multiply the FSB to give u your clock speed.
Abit NF7 version 2.0
Athlon XP 1800+ (1.53Ghz @ 2.4Ghz//(200x12))
400 watt antec smart power PSU
512mb PC3200 Geil Golden Dragon dual channel
160 GB WD HDD
just because your fsb is adjustable does not mean that your processor is unlocked. In fact, the very term unlocked refers to the ability to adjust the clock multiplyer. Explaining a clock cylce is difficult since it is not identical between processors. here is some info that explains it better then I ever could: http://searchwin2000.techtarget.com/sDefinition/0,,sid1_gci555039,00.html
some applications react differently though to higher bus frequencies as opposed to higher multiplyers. A cpu stepping will also define its ability to achieve higher multiplyers or higher bus speed for a given multiplyer. With extreme cooling you can often achieve higher bus frequencies while maintaining a stock multiplyer or even raising the multiplyer. In most cases though extreme overclocking is too risky for those of us that cant afford to constantly buy new cpus so dropping the multiplyer will benifit us more as then the stepping will often allow for more bus frequency which in turn (if in sync with dram) will give us more memory bandwidth as well. As your memory frequency rises then your memroy timings and capibilties become more of an issue. For those who can afford to just run out and get the top frequency ram at the time, you might find that the ram becomes your weakest link and that keeping the tight timings and raising the multiplyer instead will gain you the most performance.
On the other hand if you have some pc4000 then dropping the multiplyer to bring the bus up to those speeds will be of benefit since even at cas 2.5 from cas 2 your bandwidth benefits will far out weight any loss that raising your ram latency from say 5-2-2-2 to 7-3-3-2.5 will cause.
Ok. I can change the speed to 2500+ to 3200+ and it runs at about 41-45c. ( i think this is good ) i can select the FSB from 100-230(i think) and the muliplier from like 2-21(something like that). It is currently set at 166fsb and 11x multiplier(normal speeds) when I go to User Define, and can change the FSB to 200. thats it. If I go over that(which is 2200mhz) it gives me this ERROR " windows could not start because of the following"
Please reinstall a copy of the above file.
I dont know what the hell that means, but it sucks. if i change the fsb to 205 it does this.
maybe its because my ram is DDR 400? oh yeah, whats the difference between the RAMs? pc3200,drr400,ddr333 and all that.
I wonder how high i can set the FSB to?(maximum)...
I got it up to 2300mhz. and it was running cool(42c). At first it didn't work, but then I changed the voltage of the CPU to 1.7 from 1.65, and changed the Ram v to 2.9 from 2.6. It started, but with a few errors.
what should my voltage be when running this high?
FSB - 208
Multiplier - 11x
MHZ - 2300
CPU Voltage - 1.7
SDRAM Voltage - 2.9
ok i tried that. it started up like usually and was running great. I went and did a UT2003 benchmark. it goes through 4 maps. A blue screen came up when the third one started. I quickly restarted the computer and changed back to 2500+ speeds lol. Can I put the voltage any higher that 1.725? or will something happen? whats the max ?
u have good ram then, oh by the way, i would look at it at Full Load, Not while sitting idle, i mean like check the temperatures while playing a demanding game, if its like some where in the upper 50s i would worry about it.
when I used the 1800+ I had the swiftech mcx462 with delta 68.9cfm 80x35mm fan. I havent tried the thermaltake with that particular cpu however the mcx462 will out perform it on the T'breds. Copper might remove the heat better but it also retains the heat so you must be sure to use a good fan.
when I set the FSB to 200 and the multiplier to 11x it runs at 2200mhz. when I change the multiplier to 12, it should run at 2400mhz, right? it says its still running at 2200 even if the M=15 or something?