Id have to say 1.55 vcore, maybe 1.6 short term. I'm half tempted to push mine up to 1.65 and see how I do, but I'm gonna have to wait until I get a backup CPU just in case....
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I know that to be untrue. The MOSFETs can only handle so much voltage.
Originally Posted by mudd just keep your temps really low. around 55c. it doesn't matter how much voltage you really put to it as long as it stays cool. |
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i've given my old 3500+ 1.68v on air.......... way more than it really needs to overclock.
plus when you start doing more extreme overclocking you really put the juice to it....... talking volt modding your board for 1.7+vcore
Originally Posted by amped I know that to be untrue. The MOSFETs can only handle so much voltage. |
plus when you start doing more extreme overclocking you really put the juice to it....... talking volt modding your board for 1.7+vcore
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muhahaahhaaa
Originally Posted by LyokoHaCk you're mad mudd... |
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I would have to disagree with you there.
The reason CPU's tend to fail is due to electron migration. Voltage is the flow of electrons from a point of high concentration to a low concentration. As the electrons pass through the CPU core they travel through lanes. As the voltage is increased the force that these electrons have is increased. With increased energy they bombard the pathways slowly etching until they break through the lane and into an adjacent lane causing failure of this section of the core architecture. If this happens sufficiently you get total failure of the CPU. This is electron migration.
The temperature also has a similar effect. With increasing temperature the electrons gain extra momentum giving a similar effect as stated above but also can lead to physical scorching of the core and die.
This is why for instance, sudden northwood death syndrome (SNDS) happens on the older Intel cpus (and others in fact).
You can have great temperatures but if the volts are too high that can kill it also. (I know this from personal experience)
Therefore to summarise it is a combination of voltage and temperature that effect the the lifespan of a CPU.
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Originally Posted by mudd just keep your temps really low. around 55c. it doesn't matter how much voltage you really put to it as long as it stays cool. |
The reason CPU's tend to fail is due to electron migration. Voltage is the flow of electrons from a point of high concentration to a low concentration. As the electrons pass through the CPU core they travel through lanes. As the voltage is increased the force that these electrons have is increased. With increased energy they bombard the pathways slowly etching until they break through the lane and into an adjacent lane causing failure of this section of the core architecture. If this happens sufficiently you get total failure of the CPU. This is electron migration.
The temperature also has a similar effect. With increasing temperature the electrons gain extra momentum giving a similar effect as stated above but also can lead to physical scorching of the core and die.
This is why for instance, sudden northwood death syndrome (SNDS) happens on the older Intel cpus (and others in fact).
You can have great temperatures but if the volts are too high that can kill it also. (I know this from personal experience)
Therefore to summarise it is a combination of voltage and temperature that effect the the lifespan of a CPU.
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Correct.... You cannot simply apply a lot of voltage and assume everything is fine because temps are low.
Originally Posted by MjrTom I would have to disagree with you there. The reason CPU's tend to fail is due to electron migration. Voltage is the flow of electrons from a point of high concentration to a low concentration. As the electrons pass through the CPU core they travel through lanes. As the voltage is increased the force that these electrons have is increased. With increased energy they bombard the pathways slowly etching until they break through the lane and into an adjacent lane causing failure of this section of the core architecture. If this happens sufficiently you get total failure of the CPU this is electron migration. The temperature also has a similar effect. With increaseing temperature the electrons gain extra momentum giving a similar effect as stated above but also can lead to physical scorching of the core and die. This is why for instance, sudden northwood death syndrome (SNDS) happens on the older Intel cpus (and others in fact) you can have great temperatures but if the volts are too high that can kill it also. (I know this from personal experience) Therefore to summarise it is a combination of voltage and temperature that effect the the lifespan of a CPU.
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Well, my old sktA CPUs still work after 4 years and they remain overclocked with 1.7V running through them. My very first skt939 Venice still runs after 2 years of having 1.6V in it. Of course those are with extreme air (Tornadoes and other Thermaltake high speed fans) so keeping things cool does help a lot.
I always envision dual cores as being more delicate compared to single cores, so I never go past 1.55V. But as said before, watch your MB temps. too; my CPU is rather cool now with my WC, but because I now don't have the extra fan from my SI-120 blowing on the MOFSETs, my MB temp. is like 60*C (and it's Winter now), so I may have to reduce my OC even though my CPU rarely passes 46*C.
Originally Posted by beret9987 If I can get my computer to last like 3 years on 1.55V, I'm not gonna worry about it much. |
Well, my old sktA CPUs still work after 4 years and they remain overclocked with 1.7V running through them. My very first skt939 Venice still runs after 2 years of having 1.6V in it. Of course those are with extreme air (Tornadoes and other Thermaltake high speed fans) so keeping things cool does help a lot.
I always envision dual cores as being more delicate compared to single cores, so I never go past 1.55V. But as said before, watch your MB temps. too; my CPU is rather cool now with my WC, but because I now don't have the extra fan from my SI-120 blowing on the MOFSETs, my MB temp. is like 60*C (and it's Winter now), so I may have to reduce my OC even though my CPU rarely passes 46*C.
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That was the temp. on mine. Now I only have the side panel fan blowing on the board, and even that will have to come off eventually because I can barely close my case with all those tubes. I may put some extra heatsinks somewhere in there, but I doubt that will be of much help.
Originally Posted by MjrTom Yeah those mosfets get very warm (similar mobo also got SI-120) mine runs at around 45*C |
That was the temp. on mine. Now I only have the side panel fan blowing on the board, and even that will have to come off eventually because I can barely close my case with all those tubes. I may put some extra heatsinks somewhere in there, but I doubt that will be of much help.
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