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I can't get my P4 3.0 (630) above 3.8 GHz - Page 4

post #31 of 40
Quote:
Originally Posted by harvs
Ok people..brace yourselves for this..i've managed to find a fix to overclock my 630 3.0 to 4.0 easily on the p5nd2-sli.

Go under "Chipset" setting and change the LDT frequency from 4x(default) to 3x.

It has something to do with hypertransport speed from 800mhz (4x200) to 600 (3x200).
Hypertransport?!?!? Intel doesn't use hypertransport... Anyways I really think your problem is the mobo. Look into a ASUS P5WD2 of some sort Regular, Deluxe, or -E Deluxe. These are considered some of the best OC'ers for LGA775 currently. I am prime stable for 8 hrs. @ 1.45vcore, 2.1vdimm 4055mhz @ 24-28C ambient 38Cidle and 54C load. Same CPU.
    
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post #32 of 40
While I don't have the same motherboard, I do have one with the same kind of limited overclocking capability due the nForce4 SLI chipset. My basic understanding is that the chipset overheats as the passive northbridge cooling solution can't handle the FSB increase. One guy tried to solve this problem by using a better northbridge cooler. He was able to get a higher maximum FSB, but it still wasn't a great improvement because with his motherboard, an Abit Ni8 SLI, he was unable to adjust the voltage for the northbridge because there is no option for it. This is most likely because Abit knew that its passive cooling setup wouldn't be able to handle it the temperature from higher voltage.

I've no idea if you can adjust the chipset voltage on a P5ND2-SLI though, sorry if that part was irrelevent, heh.
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post #33 of 40
Thread Starter 
Quote:
Originally Posted by Boinky
While I don't have the same motherboard, I do have one with the same kind of limited overclocking capability due the nForce4 SLI chipset. My basic understanding is that the chipset overheats as the passive northbridge cooling solution can't handle the FSB increase. One guy tried to solve this problem by using a better northbridge cooler. He was able to get a higher maximum FSB, but it still wasn't a great improvement because with his motherboard, an Abit Ni8 SLI, he was unable to adjust the voltage for the northbridge because there is no option for it. This is most likely because Abit knew that its passive cooling setup wouldn't be able to handle it the temperature from higher voltage.

I've no idea if you can adjust the chipset voltage on a P5ND2-SLI though, sorry if that part was irrelevent, heh.
Thanks for the info Boinky. I do have active cooling on my northbridge. I've added 2x40mm fans on my oversided northbridge heatsink. I have a voltage setting for my motherboard. By default its at 1.4v. I can chang it to 1.5 volts. Would it cause any damage though? (apart from northbridge overheating)
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post #34 of 40
Thread Starter 
Quote:
Originally Posted by cowboyzkickazz
Hypertransport?!?!? Intel doesn't use hypertransport... Anyways I really think your problem is the mobo. Look into a ASUS P5WD2 of some sort Regular, Deluxe, or -E Deluxe. These are considered some of the best OC'ers for LGA775 currently. I am prime stable for 8 hrs. @ 1.45vcore, 2.1vdimm 4055mhz @ 24-28C ambient 38Cidle and 54C load. Same CPU.
I've already accepted the fact that my motherboard can't do high fsb frequencies but I'm sure one of the joys of overclocking is getting the most out of our equipment . I have 2 friends with the P5WD2 and I agree with you, they do overclock well! . Untill I decide to buy one in the near future, I'll be tinkering with my current motherboard.

Hey, Nice overclock btw.
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post #35 of 40
attached is a copy of my cpuZ... unfortunately the 6xx series cppus, have speed step, and my ecs cannot disable it!! so the pic shows 3.5ghz , but when u calc the fsb it = out to 3.85. idle system temps w/ the zalman cpu block and the vid block, are 21c ..full load at around 34c. When i use this rig to host CS LAN parties , i peak at about 42c, have seen 44c once when i ran prime95 on both cores simultaneously for 10+hrs....
Now as far as this othr gentlmans 630 is concerned, in my opinion i have THE WORST M/B EVER! an can still manage to crank this chip to 3.8, 3.9 before the crystal clock on the board faults too much for the chip to handle! I have to run vcore of 1.47 on get a stable 3.9ghz. Asus has far better frequency dividers than my board does ...so I would bet that sumthin is not quite tuned right yet. I would 1st try adjusting the vcore, and benchmark after, if all u notice is a temp increase then lower back down, and move to your ram. If u bumpd the voltage on the ram already then go for more speed.
post #36 of 40
Thread Starter 
Quote:
Originally Posted by CL3P20
attached is a copy of my cpuZ... unfortunately the 6xx series cppus, have speed step, and my ecs cannot disable it!! so the pic shows 3.5ghz , but when u calc the fsb it = out to 3.85. idle system temps w/ the zalman cpu block and the vid block, are 21c ..full load at around 34c. When i use this rig to host CS LAN parties , i peak at about 42c, have seen 44c once when i ran prime95 on both cores simultaneously for 10+hrs....
Now as far as this othr gentlmans 630 is concerned, in my opinion i have THE WORST M/B EVER! an can still manage to crank this chip to 3.8, 3.9 before the crystal clock on the board faults too much for the chip to handle! I have to run vcore of 1.47 on get a stable 3.9ghz. Asus has far better frequency dividers than my board does ...so I would bet that sumthin is not quite tuned right yet. I would 1st try adjusting the vcore, and benchmark after, if all u notice is a temp increase then lower back down, and move to your ram. If u bumpd the voltage on the ram already then go for more speed.
Thanks for the tip CL3P20. After changing the LDT setting to 3X i was able to go up to 4.0ghz but maximum stability was only obtained at 630. Memtest86 ran for 15passes with no errors and prime95 for 5hrs stable. I assume you're staying at 3.85 because its stable too? Just curious, what chipset is your motherboard using? NF4?
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post #37 of 40
the chipset is the radeon200.. :l its ok... but the board doesnt have fine vcore adjustments, just % increases.. i.e. 3,6,9. so that and the overall quality of the timing crystal on this board is what is holdin me back! -> side note.. i cant turn off the speed stepping, so even at 261sfb , cpuz screenshot shows 3.5ish because the cpu is idle! LOL
post #38 of 40
Thread Starter 
Quote:
Originally Posted by CL3P20
the chipset is the radeon200.. :l its ok... but the board doesnt have fine vcore adjustments, just % increases.. i.e. 3,6,9. so that and the overall quality of the timing crystal on this board is what is holdin me back! -> side note.. i cant turn off the speed stepping, so even at 261sfb , cpuz screenshot shows 3.5ish because the cpu is idle! LOL
Wow..radeon200 chipset..its the first time i've heard of that type. I've heard of intel, nforce, via,winboard..but not radeon..

I'm playing around with the idea of increasing my chipset's voltage from 1.4 to 1.5 just to try to push it to do 266fsb Stable. My chipset cooling is ok. Will it damage the board though?

lol..if you're interested of getting 3.85 on cpu-z just run prime95, open up cpuz and then save the validation data. That should get the processor's clock speed verified by cpuz at 3.85.
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post #39 of 40
RADEON chipset 200, is mad for better onboard video, it uses a type of bus priority or "caching" of sum of your system ram...anyhoo, its ONLY benifit is for onboard video. ...
used the cpuz again.. heres post->
post #40 of 40
Thread Starter 
Quote:
Originally Posted by CL3P20
RADEON chipset 200, is mad for better onboard video, it uses a type of bus priority or "caching" of sum of your system ram...anyhoo, its ONLY benifit is for onboard video. ...
used the cpuz again.. heres post->
oic..i guess that's why nforce chipsets were made as well..either better graphics or maybe for the sli feature on nvidia chipsets.

instead of taking screen shots of cpu-z , click on the ABOUT tab, and select VALIDATION. Then click SAVE VALIDATION FILE. Cpuz will then save a validation file to your target destination. Then, select VALIDATION WEB PAGE (the small blue link) and upload the saved validation file. You will then be given a link like this:

http://valid.x86-secret.com/show_oc?id=88443 (this is mine)

Advantages of doing this?
1.No need for screen shots
2.ITs available to be viewed from anywhere in the world...lol
3.its cpuz verified as well
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