AMD Phenom II X6 Overclocking and Ranking Thread

[C-BuZz]

With 650w psu getting exactly the same result.

My MA790XT-UD4P has topped out @ max 260fsb. Talk about a party pooper.

C-BuZz

[Mau1wurf1977]

Yea that's the problem with low multi cpus.

AMD Phenom II X6 1075T would fair a bit better (3.9 GHz with FSB of 260).

But it looks like you need the AMD Phenom II X6 1090T to go past 4 GHz. Plus you get an unlocked multi.

[mAJORD]

take a bit of fiddling sometimes to get above 250-260, but once you do you can achieve 300+. It's weird.

I wouldn't say you need a 1090T to surpass 4Ghz, just the right board/bios and bit more effort.

with good cooling and a solid VRM these things will push 4.2+Ghz as they love voltage.. but a BIG warning people. They will draw a lot of power with up to 1.5v pushed into them. The chips will be OK, but inadequate mobo's with inadequately cooled VRM's wont.


edit- i should mention im at 290 on a cheap cheap GA-MA770T , so it's defineatly doable

[C-BuZz]

Originally Posted by mAJORD

take a bit of fiddling sometimes to get above 250-260, but once you do you can achieve 300+. It's weird.

I wouldn't say you need a 1090T to surpass 4Ghz, just the right board/bios and bit more effort.

with good cooling and a solid VRM these things will push 4.2+Ghz as they love voltage.. but a BIG warning people. They will draw a lot of power with up to 1.5v pushed into them. The chips will be OK, but inadequate mobo's with inadequately cooled VRM's wont.


edit- i should mention im at 290 on a cheap cheap GA-MA770T , so it's defineatly doable

I was on 280fsb with a $70 Am2+ board with very little voltage options. I was expecting a lot more than 260fsb out of a high end Am3 MA790XT-UD4P. Guess I'll have to settle for 3 cores @ 4.27Ghz with Turbo

Click to view full size!

4.27Ghz stock volts 10min Prime w/Turbo

Click to view full size!

It's really weird, I can boot/prime all day at 260fsb with NO added volts to Nb/Sb/Cpu. At 261fsb with a voltage bump to everything, I still get blackscreen wtf...

C-BuZz

[conroe]

Originally Posted by Mau1wurf1977

Worst case buy a sempron 140. 39 bucks from MSY and might unlock into a dual core.

Sorry bro, just notice your reply.

Yeah, I thought that would have been the only way to go since I hardlly know anyone with an AMD let alone AM3 socket.

It was rather stupid though. I kinda have a feeling when I bought the MB.

Didn't get a chance to play around with the chip to unlock it into a dual core.
I was too excited to get the 1055T going.

Anyways, the 5 min chip will be in copie's hand soon, so he can tell me whether he have a dual core from me or not

[Copie]

Originally Posted by conroe

Anyways, the 5 min chip will be in copie's hand soon, so he can tell me whether he have a dual core from me or not

Ahaha yeah thats the plan actually, going to try and unlock it on a spare 785 board i have and see if i can screw 4ghz out of it

[mAJORD]

Originally Posted by C-BuZz

I was on 280fsb with a $70 Am2+ board with very little voltage options. I was expecting a lot more than 260fsb out of a high end Am3 MA790XT-UD4P. Guess I'll have to settle for 3 cores @ 4.27Ghz with Turbo


It's really weird, I can boot/prime all day at 260fsb with NO added volts to Nb/Sb/Cpu. At 261fsb with a voltage bump to everything, I still get blackscreen wtf...

C-BuZz

you tried dropping the ht link down too yeah ? right down to "800mhz" i.e x4

[C-BuZz]

Originally Posted by mAJORD

you tried dropping the ht link down too yeah ? right down to "800mhz" i.e x4

Yes, tried that & no bingo

[mAJORD]

i say don't give up because i've had the same problem before, more than once. I actually gave up last time I hit a wall, then literally the act of swapping out the CPU for something else, then going back to the original CPU again (for an unrelated reason), when I attempted to surpass the previous wall I had no issues.. just like that.

maybe try that even though I don't know the reason why it worked. Maybe even try clearing CMOS via jumper (maybe you've already tried)

[C-BuZz]

Originally Posted by mAJORD

i say don't give up because i've had the same problem before, more than once. I actually gave up last time I hit a wall, then literally the act of swapping out the CPU for something else, then going back to the original CPU again (for an unrelated reason), when I attempted to surpass the previous wall I had no issues.. just like that.

maybe try that even though I don't know the reason why it worked. Maybe even try clearing CMOS via jumper (maybe you've already tried)

Yeah I'll solider on & see if I can overcome this annoying issue. I have to clear the cmos every time it doesn't post anyway. Might slap my 550 in & see if it surpasses 260fsb. Thanks for your input mate

C-BuZz

[Mau1wurf1977]

Originally Posted by conroe

Anyways, the 5 min chip will be in copie's hand soon, so he can tell me whether he have a dual core from me or not

Chances are quite good from what I heard.

I have one myself, but the mobo is Nvidia chipset based and no unlocking on that one

[Copie]

Originally Posted by Mau1wurf1977

Chances are quite good from what I heard.

I have one myself, but the mobo is Nvidia chipset based and no unlocking on that one

If i can unlock and get over 3ghz on a stock 955 heatsink ill be a happy man, its only going to be put in a new fileserver so its not as if it will be cranking 24/7

[mAJORD]

My 140 did ~3.5 unlocked on its own crappy stock hs, so goodluck ;p

[m1one]

There are so many issues to consider :

Stuck with a locked CPU , then pushing FSB can be bad enough ..
And AMD boards are not the best for FSB overclocking ..

About 10 years ago I could push 260FSB , so the AMD boards have not come very far .. Even the board I have now is limited to 250 without a large voltage boost .. Easiest way to find out , is get an app that monitors all the voltages , and then do something CPU intensive / ram intensive / HDD intensive and see if your voltages remain stable .

If the voltages start to shift , you have a problem .. Either increase the voltage to compensate for the voltage drops or buy a better board .
Unfortunately , if it turns out to be the PS ?
I remember when I was using a 350W PS , my computer was doing strange things [ PS just could not handle OCing ]
So I got a 450W PS and all was well for a little while , but pushing higher GHZ and adding hardware stressed out the 450 and one day it blew up .

Thankfully all my hardware was OK , so I went out and got a 650 that lasted a long time . When these quads came out , I bumped it up to 830 , and now when I watch the voltage , I see the need for more .

This is just me , I like using a PS that is not strained in anyway what so ever . So if my computer draws 500W under heavy load , possibly more .. but just as an example , I would want a PS rated double that .

Its not just the PS , but what it can deliver on each cable .
So if you start adding it all up , HDD's , MB-CPU-DVD - graphics etc and you come within 90% of your PS rating , then you dont have much margin for increasing NB SB CPU RAM etc voltages and maintaining good clean current .

Everyone will have a different point of view and experience .
I suggest you dont believe me , but rather get a voltage monitoring app and see what your system is doing .

[Copie]

Originally Posted by m1one

There are so many issues to consider :

Stuck with a locked CPU , then pushing FSB can be bad enough ..
And AMD boards are not the best for FSB overclocking ..

About 10 years ago I could push 260FSB , so the AMD boards have not come very far .. Even the board I have now is limited to 250 without a large voltage boost .. Easiest way to find out , is get an app that monitors all the voltages , and then do something CPU intensive / ram intensive / HDD intensive and see if your voltages remain stable ..

If the voltages start to shift , you have a problem .. Either increase the voltage to compensate for the voltage drops or buy a better board .
Unfortunately , if it turns out to be the PS ?
I remember when I was using a 350W PS , my computer was doing strange things [ PS just could not handle OCing ]
So I got a 450W PS and all was well for a little while , but pushing higher GHZ and adding hardware stressed out the 450 and one day it blew up ..

Thankfully all my hardware was OK , so I went out and got a 650 that lasted a long time . When these quads came out , I bumped it up to 830 , and now when I watch the voltage , I see the need for more ...

This is just me , I like using a PS that is not strained in anyway what so ever . So if my computer draws 500W under heavy load , possibly more .. but just as an example , I would want a PS rated double that ..

Its not just the PS , but what it can deliver on each cable ..
So if you start adding it all up , HDD's , MB-CPU-DVD - graphics etc and you come within 90% of your PS rating , then you dont have much margin for increasing NB SB CPU RAM etc voltages and maintaining good clean current .

Everyone will have a different point of view and experience ..
I suggest you dont believe me , but rather get a voltage monitoring app and see what your system is doing ...

Ive asked before, what brand PSU's where you running? any kind of decent psu the voltage droop is VRM limited not PSU limited, which brings it back to the board.