2.8C and IS7

[Corporate Thug]

what is the best way to oc this combo? get pc3200 and run is @ pc2700 and use a 3:2 divider????

what kind of OC should i expect? i'm pretty sure 3.0 ghz should be no problem. what about 3.2? am i being too optimistic?

 

[FPSguy]

3.2 shouldn't be too optimistic. According to Overclockers.com the average overclock for a 2.8C is 3392. And, if you are only going for 3.2, then you are talking about a 229 FSB, so why not get some PC3700 and run it at 1:1?

Also, if you don't already have the parts in hand, the 2.6Cs just took a big price drop. They are cheaper than the 2.4Cs and their average overclock is 3474. So, I would get one of those instead and try to run it at a 266 bus, and then either get some PC4200 RAM and run it at 1:1, or else get some PC3500 and run it at 5:4 (making sure not to get RAM with Winbond CH-5 chips).

 

[Corporate Thug]

Originally posted by: FPSguy
3.2 shouldn't be too optimistic. According to Overclockers.com the average overclock for a 2.8C is 3392. And, if you are only going for 3.2, then you are talking about a 229 FSB, so why not get some PC3700 and run it at 1:1?

Also, if you don't already have the parts in hand, the 2.6Cs just took a big price drop. They are cheaper than the 2.4Cs and their average overclock is 3474. So, I would get one of those instead and try to run it at a 266 bus, and then either get some PC4200 RAM and run it at 1:1, or else get some PC3500 and run it at 5:4 (making sure not to get RAM with Winbond CH-5 chips).

the only pc3700 i can afford is buffalo, which in reviews i have read go u to ~223 mhz. the pc3200 overclocks to that high.

anyway, it is tough choice between the 2.8 and 2.6. the reason i'm leaning towards the 2.8 is cuz EVEN if it doesnt oc for $hit, it is still a fast chip that i can live with (not to say the 2.6 is slow or anything). also, there is only about a $40 difference between the two

 

[jiffylube1024]

Originally posted by: shady06

Originally posted by: FPSguy
3.2 shouldn't be too optimistic. According to Overclockers.com the average overclock for a 2.8C is 3392. And, if you are only going for 3.2, then you are talking about a 229 FSB, so why not get some PC3700 and run it at 1:1?

Also, if you don't already have the parts in hand, the 2.6Cs just took a big price drop. They are cheaper than the 2.4Cs and their average overclock is 3474. So, I would get one of those instead and try to run it at a 266 bus, and then either get some PC4200 RAM and run it at 1:1, or else get some PC3500 and run it at 5:4 (making sure not to get RAM with Winbond CH-5 chips).

the only pc3700 i can afford is buffalo, which in reviews i have read go u to ~223 mhz. the pc3200 overclocks to that high.

anyway, it is tough choice between the 2.8 and 2.6. the reason i'm leaning towards the 2.8 is cuz EVEN if it doesnt oc for $hit, it is still a fast chip that i can live with (not to say the 2.6 is slow or anything). also, there is only about a $40 difference between the two

forget the 2.8, get either a 2.6C or a 2.4C - both of them overclock like winners. The 2.4C will get you over 3 GHz, guaranteed and the 2.6C should go over 3.2 no problem (definately well over 3 GHz).

Apparently someone here is using that PC3700 Buffalo with BH5 chips with great results on either an IS7 or an IC7. All you need to do is back off the timings, but it really doesn't matter on the P4. You can use 2.5-3-3-7 and get much better bandwidth than the Athlon on Nforce2 as long as you dual-channel on the P4.

 

[Corporate Thug]

Originally posted by: jiffylube1024

Originally posted by: shady06

Originally posted by: FPSguy
3.2 shouldn't be too optimistic. According to Overclockers.com the average overclock for a 2.8C is 3392. And, if you are only going for 3.2, then you are talking about a 229 FSB, so why not get some PC3700 and run it at 1:1?

Also, if you don't already have the parts in hand, the 2.6Cs just took a big price drop. They are cheaper than the 2.4Cs and their average overclock is 3474. So, I would get one of those instead and try to run it at a 266 bus, and then either get some PC4200 RAM and run it at 1:1, or else get some PC3500 and run it at 5:4 (making sure not to get RAM with Winbond CH-5 chips).

the only pc3700 i can afford is buffalo, which in reviews i have read go u to ~223 mhz. the pc3200 overclocks to that high.

anyway, it is tough choice between the 2.8 and 2.6. the reason i'm leaning towards the 2.8 is cuz EVEN if it doesnt oc for $hit, it is still a fast chip that i can live with (not to say the 2.6 is slow or anything). also, there is only about a $40 difference between the two

forget the 2.8, get either a 2.6C or a 2.4C - both of them overclock like winners. The 2.4C will get you over 3 GHz, guaranteed and the 2.6C should go over 3.2 no problem (definately well over 3 GHz).

Apparently someone here is using that PC3700 Buffalo with BH5 chips with great results on either an IS7 or an IC7. All you need to do is back off the timings, but it really doesn't matter on the P4. You can use 2.5-3-3-7 and get much better bandwidth than the Athlon on Nforce2 as long as you dual-channel on the P4.

if the 2.6c will get you 3.2, why wouldnt the 2.8?

 

[orion7144]

Originally posted by: shady06

Originally posted by: jiffylube1024

Originally posted by: shady06

Originally posted by: FPSguy
3.2 shouldn't be too optimistic. According to Overclockers.com the average overclock for a 2.8C is 3392. And, if you are only going for 3.2, then you are talking about a 229 FSB, so why not get some PC3700 and run it at 1:1?

Also, if you don't already have the parts in hand, the 2.6Cs just took a big price drop. They are cheaper than the 2.4Cs and their average overclock is 3474. So, I would get one of those instead and try to run it at a 266 bus, and then either get some PC4200 RAM and run it at 1:1, or else get some PC3500 and run it at 5:4 (making sure not to get RAM with Winbond CH-5 chips).

the only pc3700 i can afford is buffalo, which in reviews i have read go u to ~223 mhz. the pc3200 overclocks to that high.

anyway, it is tough choice between the 2.8 and 2.6. the reason i'm leaning towards the 2.8 is cuz EVEN if it doesnt oc for $hit, it is still a fast chip that i can live with (not to say the 2.6 is slow or anything). also, there is only about a $40 difference between the two

forget the 2.8, get either a 2.6C or a 2.4C - both of them overclock like winners. The 2.4C will get you over 3 GHz, guaranteed and the 2.6C should go over 3.2 no problem (definately well over 3 GHz).

Apparently someone here is using that PC3700 Buffalo with BH5 chips with great results on either an IS7 or an IC7. All you need to do is back off the timings, but it really doesn't matter on the P4. You can use 2.5-3-3-7 and get much better bandwidth than the Athlon on Nforce2 as long as you dual-channel on the P4.

if the 2.6c will get you 3.2, why wouldnt the 2.8?

Get the 2.6C and with the cash you save you will be able to get better memory. The problem with the Buffalo memory is some have the BH and some have the CH memory chips on them. One of them (can't remember right now) will not run very well with the 865/875 boards.

 

[Corporate Thug]

i managed to cut back on a HDD that was too big for my needs and got a 2.8C with a 512 (2*256) of Geil Ultra Platinum PC4000 which will allow me to run 1:1.

 

[orion7144]

Originally posted by: shady06
i managed to cut back on a HDD that was too big for my needs and got a 2.8C with a 512 (2*256) of Geil Ultra Platinum PC4000 which will allow me to run 1:1.

Good choice. The only thing I would be concerned with (well maybe not) is that most of the performace from the P4C's seems to be better with the higher FSB and that is why alot of people are going for the 2.4 and 2.6. I run 2 of my 2.4's at 275 (both will do 300 with an ambient room temp of 50F) one of them 1:1 with OCZ PC3700 Gold and the other 5:4 with OCZ PC3500EL.

 

[Corporate Thug]

Originally posted by: orion7144

Originally posted by: shady06
i managed to cut back on a HDD that was too big for my needs and got a 2.8C with a 512 (2*256) of Geil Ultra Platinum PC4000 which will allow me to run 1:1.

Good choice. The only thing I would be concerned with (well maybe not) is that most of the performace from the P4C's seems to be better with the higher FSB and that is why alot of people are going for the 2.4 and 2.6. I run 2 of my 2.4's at 275 (both will do 300 with an ambient room temp of 50F) one of them 1:1 with OCZ PC3700 Gold and the other 5:4 with OCZ PC3500EL.

who knows, i may get lucky and be able to do 14*250 j/k i figure what i will be losing in FSB i'll be gaining with running the @ 1:1

what is a safe voltage to run these at?

 

[WaTaGuMp]

Dont expect big O/C from the 2.8 I didnt get it and they have been known not to O/C the greatest.

 

[Corporate Thug]

i'm expecting 400-500 mhz. obviously the dont have much headroom compared to the 2.4 and the 2.6 but i think the end result should be somewhat similar

 

[WaTaGuMp]

Originally posted by: shady06
i'm expecting 400-500 mhz. obviously the dont have much headroom compared to the 2.4 and the 2.6 but i think the end result should be somewhat similar

400 is about right that is where I was able to get mine even though I am running at default now a days. 230 FSB was the stable limit for me.

 

[Corporate Thug]

hmmm, the cpu database shows the average oc to be ~3400 mhz on the 2.8. ~3475 for 2.6c, and ~3320 for 2.4c

what voltage are u running yours at?

 

[orion7144]

Originally posted by: shady06
hmmm, the cpu database shows the average oc to be ~3400 mhz on the 2.8. ~3475 for 2.6c, and ~3320 for 2.4c

what voltage are u running yours at?

Mine is stock but when I went to 300FSB I bumped it up to 1.6. Bump that ram voltage up to 2.8 as soon as you get it.

 

[Corporate Thug]

Originally posted by: orion7144

Originally posted by: shady06
hmmm, the cpu database shows the average oc to be ~3400 mhz on the 2.8. ~3475 for 2.6c, and ~3320 for 2.4c

what voltage are u running yours at?

Mine is stock but when I went to 300FSB I bumped it up to 1.6. Bump that ram voltage up to 2.8 as soon as you get it.

wtf??? it ran @ 4200 mhz @ 1.6V ?!?!?!

the geil pc4000 is rated up to 2.9V, thats what i'll run it at prolly if the is7 lets me

 

[ZL1]

Originally posted by: shady06

Originally posted by: orion7144

Originally posted by: shady06
hmmm, the cpu database shows the average oc to be ~3400 mhz on the 2.8. ~3475 for 2.6c, and ~3320 for 2.4c

what voltage are u running yours at?

Mine is stock but when I went to 300FSB I bumped it up to 1.6. Bump that ram voltage up to 2.8 as soon as you get it.

wtf??? it ran @ 4200 mhz @ 1.6V ?!?!?!

the geil pc4000 is rated up to 2.9V, thats what i'll run it at prolly if the is7 lets me

3600 since he has a 2.4 (12 multi), but thats impresssssssive anyway you look at it !


D

 

[orion7144]

Originally posted by: shady06

Originally posted by: orion7144

Originally posted by: shady06
hmmm, the cpu database shows the average oc to be ~3400 mhz on the 2.8. ~3475 for 2.6c, and ~3320 for 2.4c

what voltage are u running yours at?

Mine is stock but when I went to 300FSB I bumped it up to 1.6. Bump that ram voltage up to 2.8 as soon as you get it.

wtf??? it ran @ 4200 mhz @ 1.6V ?!?!?!

the geil pc4000 is rated up to 2.9V, thats what i'll run it at prolly if the is7 lets me

I wish but it was a 2.4C

 

[Corporate Thug]

was it stable @ 3600 mhz???