Question about Vcore adjustment

jim1976

Platinum Member
Aug 7, 2003
2,704
6
81
I have an Athlon 64x2 4400+@2.7 with Vcore@1.55.
If I'm to go 2.8-2.85 I need to up my Vcore to 1.55+110% on DFI SLI-DR,which is approximately 1.7V. Well it won't give that much I suspect at that setting(1.55+110%) it will be around 1.65V.
I have an XP90c which @2.7 idles at 38c and at prime testing heavy load reaches 57c max. Usual load is around 45-50c.
My questions are if anybody can estimate from experience and help:

1. Is that a safe Vcore for my rig?(1.65-1.7). I don't wanna destroy him.
2. From your experience will my load temps go much higher if I up the vcore to that setting? In other words what I'm trying to find is what is a safe temp limit for everyday use? I've heard that Vcore can be harmless that high(1.65-1.7V) as long as temps are not that high. So what do you think in my case?

Thanks in advance..
 

Budman

Lifer
Oct 9, 1999
10,980
0
0
Is it worth killing your cpu for 100-150mhz more???

For me i would say no,what does 2.8ghz do that 2.7ghz cant?
 

jim1976

Platinum Member
Aug 7, 2003
2,704
6
81
Originally posted by: Budman
Is it worth killing your cpu for 100-150mhz more???

For me i would say no,what does 2.8ghz do that 2.7ghz cant?


Smart thinking m8 I didn't say the opposite..
I nned to know though for future purposes...
 

Budman

Lifer
Oct 9, 1999
10,980
0
0
Originally posted by: jim1976
Originally posted by: Budman
Is it worth killing your cpu for 100-150mhz more???

For me i would say no,what does 2.8ghz do that 2.7ghz cant?


Smart thinking m8 I didn't say the opposite..
I nned to know though for future purposes...

On an older core 1.7 would be acceptable but on newer cores like your X2 and venice wich default at 1.4v or less i would be afraid myself to go over 1.6v at any temp... but that's just me.

After a while you reach a point where more volts isnt worth the small speed increase and it and just adds lots more heat...

that's not really the cut & dry answer you were asking but that's my point of view. :)


btw: a Athlon 64 x2 4400+@2.7 with Vcore@1.55 is a very nice OC. :thumbsup:
 

cryptonomicon

Senior member
Oct 20, 2004
467
0
0
i think you're done. yes you can push the envelope (on air..) but you will gain less and risk more by doing so.
thank you for providing the voltage numbers that you are at currently and what you need to get from 2.7 to 2.8:

you wrote>>
2.7ghz - 1.55v
2.8ghz - approx 1.65v

its immediatly obvious that you are done, because once a 100mhz gain requires .1v, the chip is maxxed and the heat level just goes way up from there, it will saturate your heatsink and I doubt it will be stable. i agree with the previous poster sort of, but the default vcore for that chip is "1.35-1.4v" according to AMD info page on the proc. so if it is 1.4v, 15% more would be 1.61v which should be your limit if you care about any longetivity to the chip. 2.7ghz @ 1.55v would be awesome if its stable.
 

jim1976

Platinum Member
Aug 7, 2003
2,704
6
81
Originally posted by: Budman

On an older core 1.7 would be acceptable but on newer cores like your X2 and venice wich default at 1.4v or less i would be afraid myself to go over 1.6v at any temp... but that's just me.

After a while you reach a point where more volts isnt worth the small speed increase and it and just adds lots more heat...

that's not really the cut & dry answer you were asking but that's my point of view. :)


btw: a Athlon 64 x2 4400+@2.7 with Vcore@1.55 is a very nice OC. :thumbsup:


Originally posted by: cryptonomicon
i think you're done. yes you can push the envelope (on air..) but you will gain less and risk more by doing so.
thank you for providing the voltage numbers that you are at currently and what you need to get from 2.7 to 2.8:

you wrote>>
2.7ghz - 1.55v
2.8ghz - approx 1.65v

its immediatly obvious that you are done, because once a 100mhz gain requires .1v, the chip is maxxed and the heat level just goes way up from there, it will saturate your heatsink and I doubt it will be stable. i agree with the previous poster sort of, but the default vcore for that chip is "1.35-1.4v" according to AMD info page on the proc. so if it is 1.4v, 15% more would be 1.61v which should be your limit if you care about any longetivity to the chip. 2.7ghz @ 1.55v would be awesome if its stable.

Yeap that's what I was thinking of, I might go custom w/c in the next months, so I might not even need extra vcore bump.
I'll keep this cpu at least for a year so probably I won't try for higher... And btw yes it is stable(tested with dual primes of course for 24hrs)
Thanks for the feedback guys.. ;)