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Likelyness of P4 Overclocking Success?

E

erub

Diamond Member
I'm looking to get an i850E board when they come out in May, and running a 533FSB. However, I expect 533 FSB chips as well as PC1066 RDRAM to be very expensive..so how likely is Samsung PC800 to work at 1066 (I'm sure some of you guys have done this 🙂) Also, do you think a 2.0A GHz chip would make it to the 2.66 GHz at 133 FSB or 1.8A to run at 2.4 GHz?

Would chances of this all working be equally sucessful on a i850 board as on an i850E board?
 
In my experiences, expect about a 400MHz overclock with default voltage. I've kind of noticed a pattern, and that seems to be it. The higher the chip you get, the less you'll have to change the FSB to get that 400MHz overclock. If you want a pretty much assured 133MHz FSB, then go with a 1.6A. It is very doubtful that you will be able to get 133MHz FSB at default voltage with anything higher than that. Now, if you don't mind upping your voltage, then I think there is a pretty good chance that you can get 133MHz FSB out of any Northwood chip.
 
Well, I wouldn't mind raising the voltage, as long as the chip will last 2-3 years 🙂 Is the current consensus still that raising the voltage by more than .10 volts going to quickly destroy the chip?
 


<< Is the current consensus still that raising the voltage by more than .10 volts going to quickly destroy the chip? >>



I have been running 1.70v (+.2v) on both of my 1.6a @ 2.4 rigs for over one month now. I will be sure to document a failure. 🙂
 
Samsung PC800 can almost always run at PC1066 as long as your board has high quality Clock Generators (which 850e will have). A 1.8A at 2.4 should run at default voltage. 2.66 is prolly a lot to ask. You would need a better HSF then the Retail, you'll want AS2, and you'll need to raise the vcore to at least 1.7 which is risky. 1.65v is safe, but 1.7v is pushing it IMHO. Oh, and chances of this on a 850 board are likely to be just as good as an 850e board, the only prerequisite is that you will need to make sure that your 850 board has the high quality clock generators (ICS ones I beleive). As long as Asus P4T-E or Abit TH7II has these clock generators, they should do 533fsb+PC1066 just as good as the Upcoming P4T533 and Abit's 850e board.
 
My Samsung runs at 1066 speeds just fine, as does my 1.8A @ 2.4. However, I did have to use the pin trick to get the voltage bumped up to 1.7Vcore. at stock voltage it would crash in Wolfenstein and Prime95.
 
That's what I needed to know. Time to order some from Googlegear, or should I wait until May for the faster rated RDram?
 
erub, as Jumpem will point out...go to ATACOM.COM and they sell...:

1) Malaysian 1.8a P4's
2) 2nd gen Asus P4T-E with the new ICS clock generators
3) Low density 16 device PC-800 Samsung 256mb parts

My P4 1.8 is running currently @ 2.4 (18x133x1.65v) w/4x ram (533fsb)
 
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