1.675 safe for is7?

[Corporate Thug]

is 1.675 fine for the BIOS voltage on a 2.8c/is7 considering the IS7 undervolts?

edit: 36C idle under 50 full load

 

[myocardia]

Shady, it doesn't matter what your temps are, too much voltage kills processors, no matter the temp. Most people who own a P4 consider 1.70v actual too much. What is your actual voltage under 100% load?

 

[bandana163]

It's about 1.65V considering the IS7's undervolting.
It should be all right, but don't go a step higher unless you can afford it. Northwoods tend to die above 1.70-1.75V.

 

[Corporate Thug]

yeah, its a hair above 1.65 (1.66 ish)

btw, i ran prime and i got an error after 6 hours, is this "stable enough"?

 

[wicktron]

Originally posted by: shady06
yeah, its a hair above 1.65 (1.66 ish)

btw, i ran prime and i got an error after 6 hours, is this "stable enough"?

If it also does about 20 or so passes of Memtest along with you being able to do your daily tasks without fail, then yeah, I'd say it's "stable enough."

I wouldn't consider it stable enough, but that's just personal preference.

 

[Duvie]

Originally posted by: shady06
yeah, its a hair above 1.65 (1.66 ish)

btw, i ran prime and i got an error after 6 hours, is this "stable enough"?

Wow that is a pretty tight "undervolting"....LOL...

My IC7 undervolts .05v in vcore.....I run 1.65 bios to run 1.6-1.61v actual at 3.5ghz....I run 1.55v at 3.4ghz but that is actually only doing 1.5-1.51v or slightly below....

 

[Corporate Thug]

Originally posted by: Duvie

Originally posted by: shady06
yeah, its a hair above 1.65 (1.66 ish)

btw, i ran prime and i got an error after 6 hours, is this "stable enough"?

Wow that is a pretty tight "undervolting"....LOL...

My IC7 undervolts .05v in vcore.....I run 1.65 bios to run 1.6-1.61v actual at 3.5ghz....I run 1.55v at 3.4ghz but that is actually only doing 1.5-1.51v or slightly below....

i'm just guesstimating

Duvie, two questions:

how do i find out what bios voltage is VS actual volage?
and do u think 6 hours of prime is enough?

 

[Duvie]

Originally posted by: shady06

Originally posted by: Duvie

Originally posted by: shady06
yeah, its a hair above 1.65 (1.66 ish)

btw, i ran prime and i got an error after 6 hours, is this "stable enough"?

Wow that is a pretty tight "undervolting"....LOL...

My IC7 undervolts .05v in vcore.....I run 1.65 bios to run 1.6-1.61v actual at 3.5ghz....I run 1.55v at 3.4ghz but that is actually only doing 1.5-1.51v or slightly below....

i'm just guesstimating

Duvie, two questions:

how do i find out what bios voltage is VS actual volage?
and do u think 6 hours of prime is enough?

Bios voltage is what you set the vcore to be in the bios under vcore options.....I set it to 1.65v....If I reboot and go back into the bios under hardware monitor or pc health is states it has 1.61v fluctuating a bit .01v each direction....

I go into windows I use the hardware doctor that came bundled on the Abit mobo drivers cd.....It say 1.61v-1.6v as well idling and then third I check it with cpu-Z-116 program and it verifies that...

Now the abit may undervolt say versus an asus mobo but I only have a .03-.02v drop in vcore under heavy load even with my extreme oc....


6 hours of prime is usually enough for most....I say run your most common apps as long as you would normally run them and if they run fine it is usually good for most....

I run prime95 now 24-48 hours cause I do some distributed computing, but I also place a lot of stock in my encoding, and Cad rendering performance. I have seen prime stable system fail those test so I don't solely trust prime95 anaymore....I think it has become more bloated and complexed, hence the increased number of bugs we seem to be hearing about...

 

[THUGSROOK]

raising the vcore beyond stock will get you (maybe) a whole 6 fsb ~ whoopie.

 

[daos]

Originally posted by: THUGSROOK
raising the vcore beyond stock will get you (maybe) a whole 6 fsb ~ whoopie.

please clarify on this, because that is not true on any processor i have ever owned. sounds to me like you have either 1) gotten some seriously awesome overclocking chips that require no voltage increase at all, or 2) youve gotten crapy chips that dont like voltage, and will not overclock well. every chip i have owned overclocks very well with voltage increases(20mhz-30mhz fsb). At default voltage, my 2.4c could only do 265fsb. at 1.6v, i was able to keep 300fsb completely rock solid. thats 35mhz thugs...

where do you buy your chips from? sounds to me like your getting some killer chips if they do not require an increase in voltage to get you happy. 😀