overclocking amd 2800 athlon xp

see my above post for my own experience with 200mhz FSB.
my guess (and I assure you, it is a guess is that with higher voltage core settings u might be able to get close. But with higher vcore comes risk of cpu fryage. I seriously do not know (if ur cooling is adequate) how high with voltage to your core u can go....logic says if temps are cool why not...but there's this little voice in my head---->sizzle?.... ...good luck trying!

 

jaggerb you can try until you get the highest and stable settings for your cpu.
some other thing your mem pc-2700 i dont know if the can handle a high fsb maybe ddr 400 can!!.

try to build your own xperience but remember a vcore over 1.8 is not safe.

good luck man let us know!!.

Dr.xp
abit nf7
athlon xp 2800+ oc to 2.21ghz
gigabyte 3d cooler pro max speed (4400rpm)
artic silver 5.

 

Well Dr.XP, get a rad from a car dealer - i paid $20 NZ which is $12 US for my rad. Pump get an Eheim, they make fishtank pumps but also PC ones, 2 options, Eheim 1046 which is 300L/h or Eheim 1048 which is 600L/h. I ahve the 1046 as its good for my needs, these pumps cost $110 NZ for the 1046 and $130 NZ for the 1048. So tha should be $50 and $70 respectively.

 

Hey guys, and Dr.xp,

My 2800 barton of course is AXDA2800KV4D, all bartons have that code. Thus Each Letter and Number represents Speed, vcore, temp, etc.

But the Important thing is the week, Mine is this
AQZFA0336upmw

Meaning this chip was make in the 36th week of year 2k3. All bartons are locked after week 39, and all after the 42 week.

Hope this helps, thanks, laterz.

 

hey thanx g33k for the info very usefull ill check that out.

thanx aceprowl for that info i really haven`t check mine maybe is unlock and i didnt know if is unlock ill try to oc a little bit more jejejeje

 

Hey phredcong,

Good to see someone else using prime95 to check stability so I can compare. I've been running this to find out if my overclocks are anygood, and so far stable although the temp of my cpu is high 62 C

I am worried though that my Vcore is all over the place.. (even with a new power supply; AKASA 460W dual 12V rail.)

Hey aceprowl thanks for putting me straight about the CPU multiplier lock introduction week. I might try an swap my XP2800 with my bros since he got his earlier..

 

Just like the tag screams, here comes another neewbie question.

I'm at a very stable 2.2 ghz, just nervous about pushing my fsb to 200 with my 2700 kingston HX ram.

Is it generally safe to attempt it and just see if i boots? Or maybe I should raise the vcore a little?

btw, anyone out there use AIDA32? seems like a handy tool to have for getting system info. I stumbled across it one day. http://www.freenet.de/freenet/computer_und_technik/software/freeware/freeware_o/11.html

just found that their website is now closed....hmmm

As always, thanks!
Jag

 

hey jagr, molks,

jagr, see my above for a brief experiment with 200mhz fsb. I tried it with vcore set to 1.82v and even tho i could get into windows, i could not "torture" test for even one second. i'm too wimpy to try more vcore..! keep in mind if u were to get all the way to 2.5ghz it would only be about 0.15 ghz more than many can get (eg most can get ~2.35ghz) and the performance gain? well, do the math ~6% more speed...probably not worth it unless u want to try for fun and can afford to replace ur sweet hard wurkin' tortured cpu . by getting 2.387mhz with my 2800xp i got ~ 14.5% more performance...all for free with a little worry. best wishes in ur quest for the grail!

Molks, ur pc2700 ram is fine, if it can handle fsb speeds above 333mhz...like i was spraying, mine is DDR400mhz rated so my cpu is the only thing oc'd.

I did experiment with oc'ing my memory and got to 218mhzx2, but that is another story....that was by leaving it by "SPD", not "auto", and then it was my limiting factor in stability. So, my memory is slightly UNDERclocked at 191mhzx2. Perhaps that is why I was able to get 2.387ghz for my cpu (tho for my memory it is still faster than if I was way back at 166mhzx2 stock with my 2800xp at 2.083mhz and 333mhz fsb...

 

molks man that cpu is hot dude! that is due to vcore increase.. what heatsink your using?
jagerb pc-400 mem is better for oc at that 200 fsb.

phredcong good info there but you got me at the end with the underlock mem thing? please one more time!!


Dr.xp
abit nf7
athlon xp 2800+ oc 2.21ghz
gigabyte 3d cooler pro max speed (4400rpms)
artic silver 5

 

I've got a AMD Athlon XP 2700+ running at 2.17 GHz and I'm using the original settings. Comparing this to the other 2800s here this is faster than them all.

2.17 vs. 2.08
2700+ vs. 2800+

2700+ is better on default settings??

Am i Missing something here?

 

you cpu is 512kb cache or 256??

 

no clue!

how am i supposed to check?

 

DrXP,

the deal on the memory: I'm running 1GB of Kingston

Value Select PC3200 DDR400 ram (huge improvement after

upgrading from 512mb, highly recommended for games like

Doom that require 500mb of texture memory).


Sooooo, it is designed to run up to a fsb of 400mhz

(200mhz x 2 per clock cycle i believe). My OC'd fsb is

from 166mhz to 191mhz--->therefore, my memory is

running at 191mhz x 2 = 382mhz-->underclocked from its

400mhz stock speed.


So, even though my cpu is maxed out i don't have to

worry that my memory is unstable, which might be

limiting if you were using PC 2700 DDR333. Then with a

fsb of 191mhz u would be oc'ing the memory by 15% too

which it may or may not be able to do.


I have at other times OC'd the memory to 438mhz (when

letting memory be set by the "SPD" choice in bios) but

it wasn't stable. I am letting the memory be set by

"auto" in the bios which ties it to the fsb

automatically. this might be why others can't get up to

2.35 ghz reliably, maybe their memory can't handle the

overclocking though their cpu might.


post back anytime

 

thanx phredcong clear as water!! let me see if i get it the ddr 3200 (400mhz) gives you more room to increase your internal bus 166mhz to cope with the fsb/ram ratio to more stable settings.

and let the bios set the fsb/ram by selecting by spd ok got it!!
thks very helpful info.

yugioh2me theres an application call cpu-z is and .exe so you dont need to install it on your syst.
tells you cpu freq,fsb,vcore,cache
theres another call cpuinfo by amd at:ç

http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_871_2364,00.html

 

just to be sure ,

XP, when i let memory be set by "SPD" in BIOS and I set the fsb

to 191mhz, my memory is WAY overclocked (How or what

SPD works or is i'm not informed enuff to tell u, some

other more smarty knows for sure) and it won't boot.

But if i let it be set by the "AUTO" setting in BIOS it

is only clocked to the 191x2=382mhz and only my cpu

gets oc'd.



i sorta wish i REAlly knew this stuff

gotta get a car radiator for my computer next,

sheesh..!

 

ah i c:

L1 Cache: 64 KBytes
L2 cache: 256 KBytes

 

ok ill try both to see but auto sounds more stable.
thanx

 

yugio then your cpu is 384 kb cache, mine 2800+ has 512kb cache which i think make it faster also the barton core is supose to be faster than throubred.

 

ah i c