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Can a processor become more power hungry?

T

thekarney

Member
I was running completely stable at 9.5x275=2612.5 at 1.6 volts. This was pretty high voltage for my liking so I tried to tone it back down after a couple weeks and have not been able to get my previous stable 10x250 anymore unless I use a huge amount of power, same with 10x240.

I have been having these problems since I put in my x800xt agp. Is it possible its not even a cpu problem? Might I be automatically overclocking my agp bus and thats whats causing the problem? I never had these problems with my 9800pro.

Please leave feedback or ask questions and I will fill you in if I left something out. Would be a bummer if I had to stay at stock 3200+ winnie speeds when I just got this monster of a graphics card.
 
My motherboard is supposed to have an agp lock but I can't find out how to toggle it. Everywhere I go to find out, the reviews state that they believe you do this or they think you do this but no one has a straight answer 😛.

Refer to sig for specs.
 
My mobo's with AGP/PCI locks don't show an "option", it's either there or it isn't.

Might run Everest Home Edition or Sisoft Sandra to confirm those bus speeds.

BTW: I had an XP chip that showed the same symptons you state. I just put it back to stock. I've seen some CPU engineers talk about how this can happen, and a number of posters complaining about it too. Electro migration or gate thingy stuff I can't explain. In my own simple way I just understand it be some sort of CPU degredation and more vcore is only going to make it worse.
 
The AGP lock should be in the Cell Menu of the BIOS. Set it to 66 to lock it. Also, how many amps do you have on the 12v rail on your PSU? The 12v supplies power to both the video card and the CPU. Your X800XT might be taking up a lot of juice and it could limit your overclock.
 
You might be at your limit with your PSU, especially with an overclocked CPU and video card. I would suggest a power supply with at least 22A on the 12v. Most newer PSU's have 30A.
 
Hrmmm, i run a 2.53 3200 and an x800xt PE on a 400w 18A on the 12v. No harm in checking your rails though. Anyway, good luck, nice build!
 
I agree. it COULD be the power drain on the 12v rail. you should try to plug your old vid card and test it again and see if it solves your problem. if it does then you got your answer. a better PSU will fix it. if not, then it COULD be electromigration (don't know how to fix that). i've had similar issues when i went to 2.61ghz on my newcastle, but i think it may be due to my ram (timings) since when i changed my bios i had difficulty getting aggressive timings but i am still able to hit 2.61 prime stable.
 
The newer Antec Truepower II series has 18A on each 12v rail. Our 520w Powerstreams have 33A, our 600w has 20A on 1 12v rail and 18A on the second 12v rail, and the PC Power and Cooling 510 has 34A on the 12v. Most quality powersupplies should supply more than 18A for current machines.
 
check if it has more than 1 12v rail..... usually power supplies in this class have TWO 12v rails. you effectively add them up.
 
i dunno, im just not buying that this wouldnt have enough power...unless they were not using the other rail...from what iv heard, this is a pretty decent PSU for OC'ing...and I dont see a TON of extreme settings going on here that would max it out...but thats just my 2 cents... 🙂
 
Is there a special molex pin that states VGA...mine does and I think it was to separate the multple rails for cleaner power draw....


In theory if the cpu would have started requiring more power at the same speed and you have not changed a thing, it would have been very likely it was the signs that overvolting had damaged the gates.

However anytime you add new components you have to think what did it do to change the system

1) The power draw on the +12v rail. How has it effected your +12v rail idle and load reading?
2) The added heat into the case. How has it effected case temps and cpu temps??
3) Driver issues....
 
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