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  wtf do multipliers do? 
 
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Michael C Jan 28, 2004, 11:00pm EST Reply - Quote - Report Abuse
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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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chris mcferrin Jan 28, 2004, 11:12pm EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
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
ROY G Jan 28, 2004, 11:48pm EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
You might get an answer if you act a little more civil ?? Is that possible ? If you guy`s continue to act like this you are going to be ignored .

1 Jan 29, 2004, 12:25am EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
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.

mike j Jan 29, 2004, 01:04pm EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
maturity shown......

Michael C Jan 29, 2004, 02:48pm EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
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"
<windows root>/system32\ntosknl.exe
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)...
thanks

Michael C Jan 29, 2004, 04:08pm EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
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

chris mcferrin Jan 29, 2004, 04:15pm EST Reply - Quote - Report Abuse
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Edited: Jan 29, 2004, 04:15pm EST

 
>> Re: wtf do multipliers do?
bump up the voltage some more, to 1.725 see if u start without errors..

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
Michael C Jan 31, 2004, 12:41am EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
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 ?

Michael C Jan 31, 2004, 12:57am EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
btw my ram is DDR400. would this make a difference?

Shadow_Ops_Airman1 Jan 31, 2004, 02:02am EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
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.

AMD Athlon XP-M 2500+ (133x14= 1867MHz) (209x11= 2299MHz)
DFI LP NF2 Ultra-B (Hellfire 3EG Rev2)
Antec SX800, Neo HE 500, 4 Antec 8CM Fans
Thermalright SI-97 1 Antec Tricool 12CM Fan
CL SB XFi Xtreme Music
2x Barracuda HDs (250/400)
2x Samsung Write
SurrealBeingX <> Jan 31, 2004, 10:54am EST Reply - Quote - Report Abuse
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>> Whats the best heatsink for athlon1800 OCing
hey whats the best heatsink to use for my Athlon 1800?? I want to overclock like helll, reaching 2.4GHz would be OMG sweet...(starting from 1.533GHz)

I was thinking about a thermalsink heatsink...one of the big copper ones....
like this one http://www.thermalright.com/a_page/main_product_slk800u.htm

I have a A7N266-VM board, and it normally only supports up to 266FSB (133/33) but I plan to overclock it
Should I invest in a Nforce2 Board with FSB 400 support?

1 Jan 31, 2004, 11:42am EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
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.

Michael C Jan 31, 2004, 12:48pm EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
I use a CoolerMaster Aero 7. It rocks.

SurrealBeingX <> Jan 31, 2004, 01:52pm EST Reply - Quote - Report Abuse
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Edited: Jan 31, 2004, 01:52pm EST

 
>> hlp PLZ
thx 4 the heatsink help btw

I have a A7N266-VM board, and it normally only supports up to 266FSB (133/33) but I plan to overclock it
Should I invest in a Nforce2 Board with FSB 400 support?

what i mean is, with the board only supporting 266FSB will that limit my overclocking ability of my athlon1800 all that much? or shoud I buy a FSB400 board?

Michael C Feb 01, 2004, 12:27am EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
for your CPU, you wont have to. But if you plan on getting a better chip and want to overclock it, get a better board. I Recommend one of the Abit NF7s for now.

Michael C Feb 01, 2004, 12:29am EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
my board is : ABIT NF7 nForce2 Ultra 400 Series.

Shadow_Ops_Airman1 Feb 01, 2004, 04:14am EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
go up to xoxide.com and look at their heatsinks u will see this giant cylinder there.

AMD Athlon XP-M 2500+ (133x14= 1867MHz) (209x11= 2299MHz)
DFI LP NF2 Ultra-B (Hellfire 3EG Rev2)
Antec SX800, Neo HE 500, 4 Antec 8CM Fans
Thermalright SI-97 1 Antec Tricool 12CM Fan
CL SB XFi Xtreme Music
2x Barracuda HDs (250/400)
2x Samsung Write
1 Feb 01, 2004, 11:36am EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
nf7 rocks only $99 at newegg

Michael C Feb 01, 2004, 12:29pm EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
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?

SurrealBeingX <> Feb 01, 2004, 12:32pm EST Reply - Quote - Report Abuse
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>> Re: wtf do multipliers do?
yea if u take the multi up to 12x it should go at 2400Mhz, but be careful


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