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Acer Ferrari 4000 Undervolting ? - Page 2

post #21 of 55
7/10/05 at 6:18pm
Just my usual luck with processors. I remember when I bought the Celeron 300A processor because I heard it could overclock to 450MHz easily. It turned out that the particular processor I got could only do 378 MHz, and that 450MHz required extra cooling. So what did a stupid person like myself do? Well I bought a very expensive and very noisy CPU cooler in order to run at 450MHz. The cooler was actually more expensive than a new Celeron 300A processor. (thought I would opgrade the processor later - big mistake since it was a slot-1 processor).

ScubaSteve87 - Have you tried if it's also stable when running on batteries ?
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post #22 of 55
7/12/05 at 2:12pm
I'm currently undervolting and in the testing phase - I think I'm going to stay at:

4x 0.950
10x 1.375

Right now I'm running Prime95, watching a DVD in VLC, and playing music in 10 instances of Winamp. If all goes well on AC then I'll go off and do some tests on battery - oddly enough my ferrari has frozen twice while on battery, I wasn't undervolting or anything either...

//UPDATE
At 10x 1.350 everything was going fine, but then my ferrari froze. So, I upped the the VID to 1.375 and am going to leave it testing for the night.
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post #23 of 55
7/14/05 at 3:29am
I think mine is a good CPU.
It runs stable at 10x 1.325V.

On AC i tried to run it at 0.925V but it failed after running prime95 for 7 hours so I'm forced to keep it at 0.950.
Surprisingly when experimenting i found at 0.950V i can increase the FID to 5.0 and it has been running stable since yesterday, so i hope my final setting will be :

On AC : 5x 0.950V
On DC : 10x 1.325V
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post #24 of 55
7/14/05 at 11:04am
Thread Starter 
you can also put in intermediate p-states automatically once you determine your min and max voltages. If you only have min and max states set, the cpu will only jump between those two states.

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post #25 of 55
7/14/05 at 12:03pm
Quote:
Originally Posted by zanzida
I think mine is a good CPU.
Surprisingly when experimenting i found at 0.950V i can increase the FID to 5.0 and it has been running stable since yesterday
That's a good idea. Right now I'm testing my system at:
MIN 5.0x .950V

If it works out than that will be good because it'll be able to set the other FID's at lower VID's than if I used a MIN of 4.0x and .950V... That's IF the I can run stable at this setting, one can hope...
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post #26 of 55
7/14/05 at 1:14pm
Quote:
Originally Posted by oelj
oddly enough my ferrari has frozen twice while on battery, I wasn't undervolting or anything either...
That's bad.. In my undervolting attempts my Ferrari always froze when the volt was too low in the 4x setting. The symptom of low volt on the 10x setting on the other hand was a blue screen. From this limited empirical basis, I would think that the 1V might be too low for your CPU at 4x.

Without undervolting my F4005 has only crashed once, and I believe that was due to graphics driver failure.
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post #27 of 55
7/14/05 at 2:21pm
Quote:
Originally Posted by wombatten
That's bad.. In my undervolting attempts my Ferrari always froze when the volt was too low in the 4x setting. The symptom of low volt on the 10x setting on the other hand was a blue screen. From this limited empirical basis, I would think that the 1V might be too low for your CPU at 4x.
The symptom for too low of an undervolt at 10x was my computer froze. As of yet I have not experienced a blue screen. I must still test my ferrari more on battery, we'll see how that goes.
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post #28 of 55
7/14/05 at 3:12pm
Thread Starter 
I've experienced both a blue screen and a freez when i lowered my Malimal voltage too low.
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post #29 of 55
8/15/05 at 11:34pm
I have a question for undervolting at the 4x FID. For the 10x FID, I was able to undervolt to 1.325 with the AC Profile set to "Maximal" and Battery Profile set to "No management." To set the 4x FID, what do you need to set the AC and Battery profiles to? Do I keep it the same?
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post #30 of 55
8/16/05 at 11:59am
Thread Starter 
Quote:
Originally Posted by 2centz
I have a question for undervolting at the 4x FID. For the 10x FID, I was able to undervolt to 1.325 with the AC Profile set to "Maximal" and Battery Profile set to "No management." To set the 4x FID, what do you need to set the AC and Battery profiles to? Do I keep it the same?

You set your Min and Max voltages first.

When you select your profiles it will use the voltages that you have set.
EXAMPLE: Let's say you set a min of .95V and Max of 1.325

AC profile:
managment -> your cpu voltages will vary for .95 to 1.325
min -> cpu voltage will always stay at .95
max -> always at 1.325
no managment -> RM clock min/max settings are ignored and Computer uses the defaul Windows settings.

Battery profile works the same way.
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post #31 of 55
8/16/05 at 12:16pm
I suspect that RMClock makes my system unstable when running on DC. Even if I set the 4x setting to the default 1.00V setting my system freezes some times. Is there any other setting that needs to be corrected in order to run RMClock stably on the F4000?
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post #32 of 55
8/16/05 at 1:37pm
Quote:
Originally Posted by Rustican
You set your Min and Max voltages first.

When you select your profiles it will use the voltages that you have set.
EXAMPLE: Let's say you set a min of .95V and Max of 1.325

AC profile:
managment -> your cpu voltages will vary for .95 to 1.325
min -> cpu voltage will always stay at .95
max -> always at 1.325
no managment -> RM clock min/max settings are ignored and Computer uses the defaul Windows settings.

Battery profile works the same way.
Thanks for the info Rustican. I'll set my minimum voltage tonight and see how things run. So whenever RM clock boots with system startup, it will set the clock settings and overide the windows power management, right?
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post #33 of 55
8/16/05 at 5:34pm
With 1.275 for my max i'm stable, tested prime for 4+ hours and no crash and a bunch of games, my min is also at .9. Havn't really tested for anything lower yet.


But the guide was very useful.
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post #34 of 55
8/16/05 at 7:17pm
Thread Starter 
Quote:
Originally Posted by 2centz
Thanks for the info Rustican. I'll set my minimum voltage tonight and see how things run. So whenever RM clock boots with system startup, it will set the clock settings and overide the windows power management, right?

Remember to set you power settings to 'Always On' to disable the windows power managment. RMClock and Windows power managment don't play nice together.
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post #35 of 55
8/16/05 at 11:26pm
Quote:
Originally Posted by Rustican
Remember to set you power settings to 'Always On' to disable the windows power managment. RMClock and Windows power managment don't play nice together.
I set the 4x VID to 0.925, and set power management to always on as you suggested. I have a problem though with RMClock remembering my settings after rebooting. It remembers my 10x VID (1.325) but doesn't remember my 4x or profile settings. Anyone have a solution to this?
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post #36 of 55
8/16/05 at 11:32pm
Also, how do you set the intermediate p state VIDs? I see you can check the box when setting the 4x and 10x VIDs, but nothing seems to happen when I click "apply."
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post #37 of 55
8/17/05 at 4:12am

my undervolt

Hey Rustican, thanks for your review. I undervolted my new Ferrari today (got it yesterday), and got 1.325 and 0.925. I upped mine both another level for safety and am using 1.350 and 0.950. Sometimes I drop to 1.325, but after Far Cry froze I upped it (maybe since it's not a bonafide version). What temperatures do you get idling and under heavy stress/gaming? I don't have exact figures, but I'm in the low/mid 40s idle and up to mid 50s gaming.

2centz - Make sure your AC Profile has some form of management, "Maximal" when trying to find the lowest voltage for the highest FID (mhz) 10.0x. If it is left at "No Management" nothing happens. Regarding your profile being saved. On the General Tab make sure "Restore CPU Defaults on Exit" is unchecked.
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post #38 of 55
8/17/05 at 12:25pm
Quote:
Originally Posted by qbogus

2centz - Make sure your AC Profile has some form of management, "Maximal" when trying to find the lowest voltage for the highest FID (mhz) 10.0x. If it is left at "No Management" nothing happens. Regarding your profile being saved. On the General Tab make sure "Restore CPU Defaults on Exit" is unchecked.
I'll try again to set the 4x and 10x VIDs. I did have the box unchecked for the "Restore CPU defaults on exit" and the funny thing is, it only remembers my 10x value and not my 4x or profiles.

Does the AC profile for setting the 4x VID need to be set to "Minimal" or am I going about this in the wrong way? Also, I'm still having issues with setting intermediate P states.
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post #39 of 55
8/17/05 at 7:26pm
Thread Starter 
Quote:
Originally Posted by qbogus
Hey Rustican, thanks for your review. I undervolted my new Ferrari today (got it yesterday), and got 1.325 and 0.925. I upped mine both another level for safety and am using 1.350 and 0.950. Sometimes I drop to 1.325, but after Far Cry froze I upped it (maybe since it's not a bonafide version). What temperatures do you get idling and under heavy stress/gaming? I don't have exact figures, but I'm in the low/mid 40s idle and up to mid 50s gaming.

2centz - Make sure your AC Profile has some form of management, "Maximal" when trying to find the lowest voltage for the highest FID (mhz) 10.0x. If it is left at "No Management" nothing happens. Regarding your profile being saved. On the General Tab make sure "Restore CPU Defaults on Exit" is unchecked.

At idle my cpu temp is around 40C. When playing HL2 or Guild wars it will reach around 68-70C. I believe i was getting up to 74C with out the undervolting.
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post #40 of 55
8/17/05 at 9:57pm
But what is the best battery time with .975 or less ??
In my F3400 Clockgen is more estable. Rmclock give me to many crashes in 4x /.800

Now wait the new black beauty
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