Is it true you cant use RDR to oc a p4???

[Phob]

WTF???

I read that in the 3 Ghz P4 article, it says RDR is too delicate to overlock, so that means i have to use an intel 845 chipset with ddr to overlock that same CPU (p4 2.2Ghz 400Mhz FSB)???

I thought the opposite, it sounded like rdr would give even more power after overlocking, but then someody told me around this forums that some mobos like Abit TH7II with i850 chipset allow overlocking.

I am so confussed, pls reply...

 

[baldurga]

Buy brand name RDRAM 1066 with the P4 2.2Ghz FSB and a mobo that support 533FSB. Now put a good HSF (watercooling for better refrigeration), don't forget AR2 or AR3, and run the computer at 133Mhz quad-bumped. You will get and 33% boost so your CPU will run at 2,926 (aprox 3Ghz), and the rest of the components won't be stressed at all. Oh yes, that's is supposing your sample can handle it. Remember: it's not garanteed!

DIY: read, buy, test, learn, reward yourself!

 

[barureddy]

This is what I posted under another thread.

Just for reference I have a P4T533-C and a 2.2A with kingston pc1066. Currently I'm unable to even get the 133 option to work because whenever I try my board would crash saying it can boot up because of cpu overclocking. I have seen people getting it work under the 133 option, but I don't know what they did. I'm open to any sugestions on what I can do to get it work.
On a happier side I'm able to overclock my system to 2640 with the special 120/30 option on the board (1.55 volts). It runs very stable and with the stock cooler around ~40c idle and ~52c under heavy load.

 

[chuck232]

Going to 133MHz FSB with a 22 multiplier on a stock fan is pretty crazy. That's 3GHZ!!!!! Unless you have some souped up fan, I really doubt you'll be able to reach those speeds.

What's the deal with lampshades, I mean it's a lamp, why would you want a shade?

 

[FatBurger]

I've had my PC800 overclocked since I first built the system at the end of January.

<font color=blue>Hi mom!</font color=blue>

 

[barureddy]

I understand that I won't be able to sustain those speeds for longer than a minute with a stock fan, but my problem is that I can't boot into those speeds. Even raising the voltage to 1.85 with the overvolt jumber enabled, I'm unable to do that. I'm wondering why I can't boot the system for a second under those speeds?

 

[barureddy]

I think I figured out my problem. Under test boots with 100/33 and 120/30 I set the voltage at 1.85 with and with out the overvolt enabled. Without the overvolt I kept on getting 1.68 with either settings and with overvolt I get about 1.76 with either settings.

So with my problem identified how can I fix it and get 1.8+ volts? I know there is the pin trick, but are there any other means to get my board to do it?

 

[Crashman]

The latest PC1066 RDRAM should easily allow 150MHz bus speeds.

<font color=blue>At least half of all problems are caused by an insufficient power supply!</font color=blue>

 

[barureddy]

I just used the pin trick (1.7volt boot up) setting and got my cpu to boot with the 133/33 option (2926). Currently the voltage is about 1.85 and at an idle temperature of ~47C which is awsome considering it is a stock fan. I haven't tried load for the fear of getting it above 60C. But the best part is the fact that now I have a machine capable of getting to 3ghz.

 

[chuck232]

Well, what's the point in that if you're not gonna run anything to test it out?

Falling down stairs saves time

 

[barureddy]

I will when I get a better heatsink and fan. Currently I'm looking at the ALPHA PAL8942T. Does anyone know if this is a hard heatsink to install?