what cpu is best only for high fsb overclocking?? xp1800+ or xp2000+

[Mk1980]

I am thinking about buying new system and would overclock it to high fsb ratio, and I am wondering if it`s better to buy xp1800+ and probably reach faster fsb frequency , because of lower heat of processor, or I will get better results with xp2000+ with fsb overclocking?? anybody could help me??

 

[Mk1980]

somebody help me

 

[Duvie]

Well...

1800+ = 1.533ghz with 11.5 multipier and 133fsb

vs

2000+ = 1.667ghz with 12.5 multiplier and 133fsb

If you keep them locked as they are default then the 1800+ will oc further as it has more headroom...It is highly likely they will both reach the same point before being limited by heat or vcore...

some are getting these to 1800mhz regularly or 2200+ speeds...1800+ to 2200+ speeds would have a 156fsb while 2000+ to 2200+ would have only a 144fsb...Another thingto consider is it is highly likely the board you will get does not have an agp/pci lock and thus the 156fsb for the 1800+ to get to 2200+ speeds may put agp and pci speeds to far out of specs and cause problems or damage.

So....If leaving it locked and you are hoping for the best then the 1900+ would be a better bet altogether...



If you wish to unlock them then each of them has the potential to reach the 2200+ levels with the exact fsb and about any level you wish...ie drop muliplier to 11 or 10.5 and get a mobo that has a 1/5 divider at 166fsb and get some good pc2700ddr and you will have a kick-arse system...

 

[CrazySaint]

I would get a 1600+ and a board with a 5:2:1 divider past 166MHz, it has a 10.5 multiplier, so you won't have to unlock it. You will hit 1.8GHz at 171FSB, which with a 5/1 divider yields 68/34, which is close enough to spec to not matter.

 

[Mk1980]

and what mobo had that 5 2 1 devider??Epox 8k5a2 or something like that??

 

[Mk1980]

ok, I don`t wanna to damage my geforce4ti4200 128mb, it is really great card,, so I should put my fsb up to 150mhz and not higher??

 

[JMicaelK73]

Try Abit KX7-333, it will do it for you and it has the dividers, so you can go higher than 150 MHz without any problem for the videocard. And just get the XP 1600+, it's only $60 @ Newegg, if you fry it I wouldn't hurt as much as a XP 2000+, even if they are $115 @ Newegg today. But the XP 1600+ with the right stepping is the best overclocker and almost newer fails to reach really high FSB.

Micael

 

[CrazySaint]

Originally posted by: Mk1980
ok, I don`t wanna to damage my geforce4ti4200 128mb, it is really great card,, so I should put my fsb up to 150mhz and not higher??

Actually, if you have a board with a 5/1 divider, 166 is actually better than 150FSB, since you can run 166 with the PCI/AGP busses exactly in spec (33/66), and there's no way that I'm aware of to run 150FSB in spec.

 

[dannybin1742]

here is what i have, i have not messed with it that much yet, but i have the epox 8k3a and water cooling, my board reads the actual internal core temps via cpu diode.

unlock a 1600+ from newegg.com recently they have been all agoia cores (which are the best) i have my 1400mhz cpu running at 1500 with 166fsb, my board has teh 1/5 pci divider, so everything is in spec.

i would highly suggest the 8k3a, there are so many adjustments in the bios its incredible, this weekend when i have time i will push the cpu farther.

but what i'm saying is buy a 1600 from newegg, and unlock it, and get the 8k3a (this and the asus board are the only two on the market that read the xp thermal diode)

 

[dannybin1742]

i'm waiting for the 1/6 divider so that i can crank it up to 200fsb- with it unlocked it shouldn't be a problem

 

[Mk1980]

OK, than for 166fsb is better Abit KX333 and Epox 8ka3 isn`t good???for 166mhz overclocking??
what I am seeing now it is also

 

[Mk1980]

aha I see, you have written that it has that divider, I don`t know if it is safer to play with 1900+ to achieve big performance and higher up fsb frequency, or safer to bet on 1600+ 166mhz fsb overclocking,, peformance gain will be almost same, no??

 

[Mk1980]

Ok now which mobo, Kx7 333 or Epox 8ka3 ,or 8k5a2 which has usb 2.0 only I think extra

 

[Mk1980]

I now have seen preview`s of Abit KX7 333 and I saw one thing that it allows voltage of core only up to 1.85 is it enough?? for future, when Epox got up to 2,2v?????????????????????????? big question,

 

[Mk1980]

also I saw tests in which 1700+ have achieved with no problem 166fsb locked,, and it is over 1,8ghz , is it possible or risk over 1600+
I know that I have so many questions, but rather now like after buyin, big thanks to all

 

[Mk1980]

Also I read in one thread thet Epox 8ka3 haven`t got support for AthlonXp ondie diode, which prevent Xp processor from burning in hell , when Cpu fan would be off,, is it true??

 

[Boonesmi]

the review you read was inaccurate... the 8k3a does have support for the onchip diode

many got it wrong because it also has the old style thermistor in the socket for old (pre athlonXP) cpu's


personally i would suggest the 8k3a+ or the 8k5a2+ (the 8k5a2+ has usb 2.0, and onboard LAN)

i have an 8k3a+ and i love it.. i run my xp1500+ on a 166mhz fsb giving me xp2000+ speeds, and... since it uses the 1/5th pci divider the rest of my system is all in spec (meaning all the pci and agp devices are running at stock speeds )

 

[Mk1980]

I will buy 8K5A2 this will sure do god job, and I don`t need raid,, I was just wondering if locked xp1700+ could 100% achieve 166fsb with stability??? I saw it in one preview for sure running it 12hours 3dmark2001 as rock, but I will probably bet on 1600+ which is most sure to overclock at 166fsb locked.

 

[Mk1980]

Big thanks for your help

 

[Boonesmi]

if your wanting to run a 166mhz fsb, and dont want to have to unlock the cpu...

then your best bet is an xp1600+ (not an old one, but one from somewhere like newegg so you know its a newer stepping)

 

[Mk1980]

Ok, I live here in Slovakia , Central Europe, and here is no chance to order something from foreign country with good price ;-), but I will tell my supplier if he could check which serie will be those Athlonxp and when they will be another serie, I will probably gain more performance with overclocked fsb xp1800+ or 1900+

 

[dannybin1742]

ask him for a chip that has agoia on the core, that is your best OCer

 

[CrazySaint]

Originally posted by: Mk1980
Ok, I live here in Slovakia , Central Europe, and here is no chance to order something from foreign country with good price ;-), but I will tell my supplier if he could check which serie will be those Athlonxp and when they will be another serie, I will probably gain more performance with overclocked fsb xp1800+ or 1900+

There's FAR less chance of getting a 1800+ or 1900+ to 166FSB without unlocking and reducing the core. The 1600+ is your safest bet for 166FSB locked OC'ing.

 

[Mk1980]

I see, and 1700+ isn`t 100% 166fsb overclocker, too, am I right?? ok I will ask my supplier, there are no big differences in performance when you have something over 1700 mhz on 166fsb I think anyway, and something on 1800 over,,, perf. nearly same, I saw 3dmark scores on madonion to check this out.

 

[30wolverine30]

I've got both the 8K3A+ and the KX7-333R. The 8K3A+ with a MP1900+ AGNGA and Mushkin pc2700 cas2.5 ram is at 180x10 stable and the KX7 with a MP2000+ AGOIA and Corsair pc3200 XMS cas2.5 is at 200x9.5 stable. Both are good boards for oc'ing but the cpu and ram are a big factor also. I like the MP's over the XP's cause they're all ready unlocked and I'm lazy and can't see well enough to unlock the XP's. Just my opinion.