Phenom II X4 @ +6 GHz by Team Finland

[massman]

Cold bug information:

I have now confirmed from AMD that when running Phenom II X4 with LN2 HyperTransport link has to be in HT 1.0 mode (running 1 GHz) to prevent CPU cold bugging. AMD suggested us using this setting in Chicago event and we had no problems hitting +6 GHz.

Could this affect the coldbug issues with the 65nm Phenom as well?

Can you provide performance scaling information of the HT link? How much decrease in performance does this cause? Moreover, how does this translate in coldbug terms: If HT link is set at, for instance, 1.6G, what will the coldbug be?

As far as I know, the low HT link does not make the performance decrease dramatically.

[SF3D]

Could this affect the coldbug issues with the 65nm Phenom as well?

Can you provide performance scaling information of the HT link? How much decrease in performance does this cause? Moreover, how does this translate in coldbug terms: If HT link is set at, for instance, 1.6G, what will the coldbug be?

As far as I know, the low HT link does not make the performance decrease dramatically.

This should not affect 65nm parts. Only these new ones.

We didn't have time to test those things in Chicago and we have to test them in our next bench sessions. HT link doesn't do huge difference, but NB speed does. So if HT is at 1GHz it shouldn't do any harm.

I can test those settings on air today and I'll let you know.

[Oliver]

This should not affect 65nm parts. Only these new ones.

We didn't have time to test those things in Chicago and we have to test them in our next bench sessions. HT link doesn't do huge difference, but NB speed does. So if HT is at 1GHz it shouldn't do any harm.

I can test those settings on air today and I'll let you know.

thank you very much

keep pushing it

[massman]

This should not affect 65nm parts. Only these new ones.

@ Macci: Why?

We didn't have time to test those things in Chicago and we have to test them in our next bench sessions. HT link doesn't do huge difference, but NB speed does. So if HT is at 1GHz it shouldn't do any harm.

I can test those settings on air today and I'll let you know.

Sound great.

I have my 9950 BE setup assembled as well, might be cool to compare performance scaling of both platforms .

[SF3D]

@ Macci: Why?

I'm not Macci, but there is a easy answer for this.

In pervious processors there was some particular parts inside the die, which were holding these CPU's back. Now in this latest 45nm revision, they finally got that thing fixed. Now when CPU get colder it doesn't have any parts which would fail under subzero temperatures.

I know the exact answer for this, but can't tell it. Sorry

[G-UNIT91]

I'm not Macci, but there is a easy answer for this.

In pervious processors there was some particular parts inside the die, which were holding these CPU's back. Now in this latest 45nm revision, they finally got that thing fixed. Now when CPU get colder it doesn't have any parts which would fail under subzero temperatures.

I know the exact answer for this, but can't tell it. Sorry

Can you post anything else?

also in pvt!

[massman]

I have my 9950 BE setup assembled as well, might be cool to compare performance scaling of both platforms .

Will be using this graph in my Dfi review, so I might as well post it here.

I've been checking the performance scaling of the HT Link, which is in case of the Phenom2 very interesting. As most of you probably already figured: very little influence on the performance, however, I was expecting a difference in the 3D results, which seems to be exactly what happens: nearly 100FPS gain by moving from 200MHz to 1800MHz (600 -> 700, using stock 4870X2).

[Caveman787]

so hypertransport only effects performance in gaming?

and 100 fps....your scaling graph looks to me liek you meant it as 1.xx performance scaling of the original.

a 13% increase is 100 fps?

or am I entirely off in my confusion.