really need advice

[cicotte]

well am using an 1900xp @12x143 i also have an 1600xp i got for a good price off a buddy, i can only seem to get 143 fsb stable whith my 1900xp on an asus a7v266/e mother. now i never tried the 1600xp its just bin sitting here for a while but after reading all of the posts saying how good the 1600xp is it worth me puting it in and trying it.how do i know if i have a good 1600xp chip, can i go higher than 143 fsb whith a 1600xp even whith my pc2100 ram and my a7v266/e mother you advice whould be great and maybee ill rip out my 1900xp tonight.

[rogerdugans]

What you want to find is the stepping of the chip (there are pics all over the place, so I'm not going to post another :) )

The best steppings are the agoia and aroia chips; a "y" as the first letter on the second (I think) line down from agoia/aroia is another good sign.

Those chips are almost always excellent overclocking chips- if you have one, be happy :) it should hit 1700 almost guaranteed, and 1800 is not uncommon.

There are a few around here that are at or near 2ghz with XP1600s....and volt mods and water cooling.

Take a look at the stepping- you could be in great shape.

I say do it either way: you gotta see what it'll do, right? :D

[cicotte]

well thanks for input my 1600xp is an agkga 0137mpm hope its good ? your right im going to rip out my 1900xp right now and thow in the 1600 and get my feet wet.

[Emericana]

unfortunatly no that is not good at all. sorry. you may be able to do 1600mhz with that but prolly around 1570mhz.

[rogerdugans]

:( Sorry, man: agkga is not a good one.

But on the good side: I had one, and it hit 1.7ghz pretty easily; it was definitely a better chip than my XP1800.

One note: steppings are a fairly good indicator, but the are not a guarantee of a good/bad cpu.

I had a decent agkga, and I've heard of aroias that didn't do too well.

I still say try it and find out ;)

[cicotte]

ok so whith my configuration i guss its not worth it. am running very stable @ 1717mhz.

[maxima88]

You may as well try the xp1600 and see how far it will go.
If it doesn't o/c well, at least you tried.

1717MHz is pretty fast if you ask me.

[cicotte]

hrm if i understand this correctly my mother only has 1/4 divisor so my max fsb would be 155 to keep the pci slots below 39mhz so than i would have to unlock the 1600 to get 1700 mhz or higher on my board.

[john240sx]

having the PCI under 39Mhz isn't a rule etched in stone. it's an estimate of what a typical system can do. you might ba able to get it to 45Mhz without a problem, you'll never know until you try.

well, GOOD LUCK! ;)

[cicotte]

ok will post results

[cicotte]

well my results arent very good the most i got out of it was 1577 mhz 10.5x150 so out comes the 1600 and in go's the 1900xp well it was worth a try.

[rogerdugans]

That's about normal for your stepping :( unfortunately.

I have had some bad steppings that I was able to pound into submission over time ;) , but it took a long time and a lot of tweaking to do it- and I still never got good results, just bearable ones.

Keep it for a spare, sell it, or find another mobo for it and built another rig- having a spare computer comes in handy now and then ;)

[packratbob]

Originally posted by cicotte
well my results arent very good the most i got out of it was 1577 mhz 10.5x150 so out comes the 1600 and in go's the 1900xp well it was worth a try.
wat were ur temps?? if u up the vcore to say around 2.0 volts and ur temps are under 38 u should be able to push the chip to 1750 stable easy i had on that did 1800mhz with 2.14 vcore load tempsat 35.

[cicotte]

only tried 1.85 have to do a volt mod to go higher temps were 45 loaded but thats the reading off the mother board sensor i here not to accurate.