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omainik: Setting lower VCore on Core 2 Duo
omainik
Junior Member

Posts: 1
Registration: Dec 2006
posted December 01, 2006 04:44 PMprofileeditreply w/quoteIP

Hello,

I use a Core 2 Duo E6400 on an ASrock Conroe945-DVI board. RM Clock allows no lower VCore than 1.060 V.

Is there any way to set lower VCore in Software or do I have to change the Hardware for lower settings?

Best regards
Peter

DaVinci
Junior Member

Posts: 3
Registration: Nov 2006
posted December 02, 2006 04:18 AMprofileeditreply w/quoteIP

What's the min/max values available for your CPU?
My Core 2 Duo ranges from 0.95V (6X) at 1 GHz up to 1.187V (13x) at 2.16GHz.
Got it just fine running at 2.16GHz @ 1.025V.
Tried 0.95V at max speed but it just gave me a BSOD.

If you can't set lower VCore values maybe the hardware doesn't support it.

omainik
Junior Member

Posts: 2
Registration: Dec 2006
posted December 02, 2006 02:06 PMprofileeditreply w/quoteIP

With the old version of RM Clock I could set independent of the frequency any VCore between 1.060 and 1.47V. The Version 2.2 let me set values between 1.163 and 1.325V. So it is may be a restriction of the software.

I think about changing the VID direct on the CPU. I would like to run at 8x, 2.133 GHz and VCore about 9.5 V.

Ciao
Peter

Spare Tire
Junior Member

Posts: 1
From: Montreal, Canada
Registration: Dec 2006
posted December 04, 2006 06:17 AMprofileeditreply w/quoteIP

I have the E6300 and i have the same problem, but even with the older version 2.15, it didn't go any lower than 1.162V.
This is dissapointing since i just "upgraded" from an athlon x2 64 socket AM2 where i could undervolt to temperatures of 23 degrees. Now my core 2 duo runs at 37 idle, and only has TWO speed steps. My athlon went down to 1GHz, while this one bottoms out at 1.6GHz. Intel should have given us more lower multipliers, their clockspeed being so high now.

DaVinci: how the hell did you manage to get your core2 to go down to go down to 1GHz?!?!?!?! Are you using the notebook version with lower clockspeed?

Zulu
Junior Member

Posts: 10
Registration: Nov 2006
posted December 04, 2006 09:13 PMprofileeditreply w/quoteIP

Yes, DaVinci has a notebook, as Merom (notebook C2D) go down to 6x166 = 1000 MHz, and are limited in the range of VID e [0.95;1.187].

Dmitri Besedin
Member

Posts: 1381
From: Moscow
Registration: Apr 2003
posted December 06, 2006 03:27 PMprofileeditreply w/quoteIP

omainik
With the old version of RM Clock I could set independent of the frequency any VCore between 1.060 and 1.47V. The Version 2.2 let me set values between 1.163 and 1.325V. So it is may be a restriction of the software.

It's not the software restriction, but the proper way of Core 2 VID interpretation in the new RMClock releases as opposed to the older ones.
The restriction itself comes from CPU hardware.

omainik
Junior Member

Posts: 3
Registration: Dec 2006
posted December 06, 2006 11:19 PMprofileeditreply w/quoteIP

Hello Dmitri,

if I would change the VID directly on the motherboard or change the stabilizer for VCore, is it technically possible to achieve lower VCore with a stable machine?

Dmitri Besedin
Member

Posts: 1394
From: Moscow
Registration: Apr 2003
posted December 12, 2006 03:00 PMprofileeditreply w/quoteIP

omainik
if I would change the VID directly on the motherboard or change the stabilizer for VCore, is it technically possible to achieve lower VCore with a stable machine?

Technically, it is. However, I'm afraid there's no easy way to tweak with Vcore regulator, at least via software means.

omainik
Junior Member

Posts: 4
Registration: Dec 2006
posted December 13, 2006 12:21 AMprofileeditreply w/quoteIP

I mean a hardware change of the regulator or a hard wired change of the VID on the CPU socket.

Did someone achieve a stable running system with a lover voltage - so about 0.95 V?

Dmitri Besedin
Member

Posts: 1399
From: Moscow
Registration: Apr 2003
posted December 14, 2006 06:10 PMprofileeditreply w/quoteIP

omainik
I mean a hardware change of the regulator or a hard wired change of the VID on the CPU socket.

I see. Personally, I don't have any experience with this

bhvm
Junior Member

Posts: 3
Registration: Apr 2008
posted April 23, 2008 06:54 AMprofileeditreply w/quoteIP

Tool- RMClock

Scanario 1-
Account - web surfing.
Backgroud processes-
Antivirus, Transparency, Dock with big PNG Icons, 3D effects (WinFlip), Yahoo widget engine with 10 widgets (Including a Big Animated Analog Clock)

Foreground tasks- Opera, Yahoo messenger, MSN, Rediff, Skype.

RMClock profile-performance on demand.
All Mulitpliers at 0.95V (the minumum option) 6X~10X
Systmem Rock Solid!
Usually runs at 6X (1ghz)
Core temps- 23.C ~ 33.C

Fan/Noise -Absent.
Graphics temp- ~40.C

Scenario 2-
Plain undervolting

Background tasks- Minimum/Absent
Foreground - Game (NFSMW,DOOM, Call of duty etc)

Multiplier 10X 1.667 Ghz at 0.96 (Just a Notch higher Than Min)
Lower Mulitpliers at 0.95V

Aquamark score - 43K
Temps 50~60.C
Fan at low sppeds
Graphics temp 50~60.C

Before Undervolting-
Multiplier - Switches 10X 1.667Hgz at 1.26V and 1Ghz At 0.95V
Websurfing Temp- 40~58.C
Gaming temp- 80~90.c (Ouch! My pants!)
FAN- Huh! Its better called a Hairdryer!

Config-
1>Custom HP DV 8/9XXX series (Import
from Singapore)

2>17.2 in Widescreen, 1400X900
Dual lamp,Ultra bright (OMG!!!!!
Gorgeous!!!) 5:3 Aspect ratio

3>Intel Core QUAD, 1677Mhz,667
Mhz FSB , 2MB L2 cache, 31W
socket 479

4>Intel 945PM Chipset,Pcie X16
support,Sata Support,Upto 2G RAM
support.

5> 1 GB DDr2 667 mhz RAM.

6>Nvidia GF 7400Go OEM SLI!!!!
- 2X nvidia G72 cores at 400Mhz
each + 512 MB RAM (700Mhz)each
OC'd to 564/864 For gaming Profile

7>Intel HD audio

8> 2X Seagate Momentus 7200Rpm
Sata2 HDDs (80GB X2)

9>HP DVD Writer/RAM with
Lightscribe

10>Inbuilt Bluetooth and Wi Fi, +

Dial-up Modem +100mb/s lan
11>Ports-
4X USB2
1X S-video and VGA
1X Firewire
1X PCM cia and Express card slot
5 iN 1 Card reader


Misc-

1>HP Quick play Buttons
and remote control

2>Copper Heatpipe cooling

3>Fullsize + Numeric keyboard

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