P4 2.6 W/400FSB or P4 2.66 W/533FSB

[HwyStar]

I,m currently building a system with the Prometeia Phase cooler with/ Corsair pc3200 cas2/asus p4g8x mb. My question is which chip will yield the best OC results?
The p4 2.6 400fsb has multiplier of 26x100=2600,which if changed to 133 will be 3458mhz but, believe that the fsb will not go much higher 138-140. The p4 2.66/533fsb has multiplier of 20x133=2660. But am told that the fsb will go alot higher 160-180. I would like to run @ 3500 range. The question is really which will be the faster overall OC Chip of the two? The 2.6 w/400fsb or the 2.66 w/533fsb. Is it better to have both a higher multiplier and fsb or higher fsb w/lower multiplier?
Help!
Thanks!!!
HwyStar

 

[Duvie]

Well if you are lucky enough to achieve 3500mhz on either of the chip the one with the higher fsb will perform faster, period.....The fact you have pc3200 memory means either you will be running a sis chipset/ via chipset or just satisfied with running that ram underclocked....At 138-140fsb and with intel chipset you will not get anywhere near 400mhz ddr with the memory ratios available....


I would look at a board with a known 4:5 ratio and then maybe you can run 175fsb it would be to get 3500mhz with the p4b 2.66ghz chip...That would be 438mhz ddr and doable with some of the corsair stuff and moderate to conservative timings.

With the 2.6ghz 400fsb chip 135fsb would equal 3500mhz and the best you could get in memory off of a intel chipset and say the best 3:4 ratio would be 360mhz ddr....

A sis chipset can give you 400mhz ddr cause they often use 4:6 ratio but I dont trust them and many had issues running 400mhz ddr and running mult sticks...


I would go p4b 2.66ghz route...

 

[oldfart]

He is running a P4G8X

 

[HwyStar]

Check the link out and watch the video, If you've not already seen it. It's a must see!!
http://www.tomshardware.com/cpu/20021216/p4_41-03.html
You will have pause vid. a few times to see the bios screens.

My setup will be exactly like the Iceman's// memory, vid card, and asus mb. Prometeia Cooler etc.
(Remeber, I will be chilled to -20C - 30C under load)
But, will be running a p4 2.6/400fsb or the 2.66/533 fsb.
Based on setup mentioned above, the 533fsb 2.66 should do the trick? This is the Major Question To Be Answered.
He is running the p4 30.6/533fsb. Notice his fsb setting to 179!, and other settings as well. I am hoping to run@3500 stable (& see no reason why it shouldn't) with the replicated bios settings just slightly slower cpu. If he can hit 4100 I should hit 3600 tops? BUT Again I am not fully confident. This is why I am looking for suggestions!
If I am still missing the point or ideas, Please respond. I would appreciate the additional ideas or thoughts.

Thanks,

HwyStar

 

[Duvie]

Well its Granite Bay so that should mean you only have 1:1 ratio and then that means a must with the lower multipler higher fsb p4b chip...Why even consider that joke of a chip p4a 2.6ghz???

This is a no brainer!!!!

 

[HwyStar]

This the line I am thinking on as well, Finally.
You get the best of both with the Higher FSB and CPU MHZ.
So it appears that the P4 2.66 533FSB will be my best choice,
if I can hit 175 on FSB for my hopeful Goal of 3500.

 

[Budman]

There's no way in hell you're going to reach 3.5ghz, maybe 3.1 if you're realy lucky but probably 3ghz will be the max.

 

[HwyStar]

DO WHAT? You say no way to 3.5 GHZ with the Prometeia and settings, hardware as mentioned in the video.
I have already explained that I will have the exact hardware as the rig that hit 4.1 except for 400mhz slower CPU.
I think you had better watch the video again! or read all of this thread!


Thanks for your reply!

HwyStar

 

[THUGSROOK]

ya might wanna remove the heatspreader ~ they tend to blow up when frozen

gluck to ya ~ we dont get too many kamikazi overclockers in here

 

[Technonut]

There's no way in hell you're going to reach 3.5ghz, maybe 3.1 if you're realy lucky but probably 3ghz will be the max.

Budman: I can run my 2.53 C1 @ 3220MHz/ 1.70v 100% stable with just watercooling. I would really like to lay my hands on a Prometeia or the latest VapoChill.

 

[HwyStar]

OK.OK
Technonut or whoever, If you can run a 2.53 @ 3220 with watercooling, why would you state that I will probably only reach 3.0-3.1 with subfreezing temps and a 2.66 P4?
This is why I posted this thread to begin with.
I would like to know the reasons why you, or anyone else, thinks that 3.5 is out of reach? I'm not looking to argue, I am looking for some possible, Professional Advice and ideas, reasons why or why not.

Again, To anyone or previous replys, Tell me why you think this won't happen. These are the type of responses I am looking for. I admit, I am Not a Professional OC. But, if you can emulate the Iceman's configuration hardware (-400mhz) then this goal should be possible. Please follow the link for the setup and video.
http://www6.tomshardware.com/cpu/20021216/index.html

THANKS AGAIN!!

 

[HwyStar]

THUGSROOK,

Thanks for the forwarning, I have heard of the possibility about the heatspreader expanding or popping up or off!
Would you use some form of a shim? Similar to what's used for the AMD Chips? Or Remove the heat spreader & be Extremly Carefull with mounting the Prometeia Head?

 

[Technonut]

Technonut or whoever, If you can run a 2.53 @ 3220 with watercooling, why would you state that I will probably only reach 3.0-3.1 with subfreezing temps and a 2.6 P4?

I am not the one who stated that... I was quoting Budman. I agree that you have a good shot at your goal since I can run my watercooled rig @ 3220MHz with reasonable voltage. I have a thread with the results running my 2.53 C1 @ 1.70v Vcore and below. Just scroll down.....

EDIT: I am also the official AnandTech Kamikazi processor tester. It would be in your best interest to forward the Prometeia to me first for in depth testing before trying this on your own....

 

[HwyStar]

Sorry Technonut ,

Thanks for the link and others threads, links you have here! 4.44 GHZ etc.

Sure,,, I'll be glad to send tha Prometeia for testing!
Just tell where to send!! HE HE!
No Really,
Thanks Again!

 

[PhoenixOfWater]

HwyStar - its nice that you can run you CPU at -20 but just remenber that anything higher then 1.80V will start to KILL your chip!!... Many ppl with Prometeia and VapoChill have killed there chips thinking that the subfreezing temps will let them run there chips at hight volts..... you can do when ever you want i just don't want to see you kill you chip...

I would go with the P4 b 2.66ghz

Good luck and I hope you get 3.5Ghz if not more

 

[Budman]

I hope you can prove me wrong I really do.

I was just saying dont assume any chip will do 3.5ghz easy,that's all.

 

[HwyStar]

Budman, I agree it won't be easy. That's why I Started this Q&A, to get opinions both possibly negative and hopefully more positive on, the idea of theP4 2.60/400 & P4 2.66/533.
It appears that Based on what I have gathered so far from this forum, that P4 2.66/533 is the Better of my two Cash Limited choices.
I have the Prometeia Case & Cooler on hand, so I am not far from ordering the MB,MEM,HD,PS,and CPU.

Thanks Again, to ALL for the suggestions and tips
and Any Further Suggestions Will Be Appreciated.

HwyStar