Q6600 owners... what is your VID?

graysky

Gawd
Joined
May 6, 2007
Messages
620
If you own a Q6600, please reply with your VID and the stepping of your chip. The VID can be found using coretemp. If you're using vista, coretemp will not display the stepping in some cases, so you can use CPU-Z (it's listed under "revision") to get the stepping.

Here is a shot of mine for reference:
getvidqp1.gif


If all else fails, look on the box your q6600 came in; the last 5 letters after the Q6600 in the production code will tell you the stepping. "SLACR" means it's a G0 while "SL9UM" means it's an older B3. Here an example shot taken by XtremeTiramisu to give you an idea:
dsc00009bo9hj9.jpg


So, I have a B3 w/ a VID of 1.2875v

EDIT: Here are the data as of 23-Sep-2007 at 7:30 AM based on people's replies to my VID thread here and elsewhere; just as a reminder, please do not post your VID from here on out as I won't be updating the data sets:

vidhistogramskp4.gif

*Histograms generated with SBHisto

Total replies: 208
102 replies so far for B3 stepping Q6600s:
(VID: # of replies)
1.1625: 3
1.2125: 1
1.2250: 1
1.2375: 1
1.2500: 5
1.2625: 2
1.2750: 13
1.2800: 1
1.2850: 1
1.2875: 12
1.3000: 14
1.3100: 1
1.3125: 15
1.3200: 1
1.3250: 31

158 replies so far for G0 stepping Q6600s:
(VID: # of replies)
1.1125: 1
1.1520: 1
1.1625: 5
1.2000: 5
1.2125: 9
1.2150: 1
1.2200: 1
1.2250: 8
1.2375: 10
1.2500: 16
1.2525: 1
1.2600: 1
1.2625: 17
1.2650: 1
1.2700: 1
1.2750: 25
1.2850: 1
1.2875: 23
1.3000: 17
1.3125: 10
1.3250: 5
 
g0 #1 = 1.2875 , 3.330Ghz /24c ambient , idle load 39/58

g0 #2 = 1.2850 , 3.195Ghz /24c ambient , idle load 40/59



What does this mean ? On the box of both it says "1.350 max" When I first tried to hit
3.33 I thought I needed 1.42+ volts.but it was my ram that needed tweaking and more voltage not really the chip.After getting it more or less stable,I have been lowering the voltage.Going below 1.285 gets me the odd error in Orthos,so I am staying were I am.The heat from chip one spikes up to high,if I try to go above 3.33.The IHS on both chips seem remarkably flat compared to my now dead 6420.

What is the difference ? :confused:
 
As I understand it, the VID is hardcoded to the chip and means the vcore value to run stable @ stock settings. I'm trying to understand if a lower VID means the chip will o/c @ lower voltages (and run stable to prime95 v25 or 2x orthos). So far, this seems to be true.
 
I'm trying to understand if a lower VID means the chip will o/c @ lower voltages (and run stable to prime95 v25 or 2x orthos). So far, this seems to be true.

I too think a lower Vid would indicate a "better" chip in general. Also of note is that as the stock rated CPU frequency goes up, so does the default VID go up as well as apparently one way Intel ensures the chip will run at rated speed is to give it a little "boost" of Vcore.

Here is a little detail from the C2D datasheets. In short Gray is correct, its a code thats programmed into the cpu at the factory to tell the on board cpu voltage regulator what voltage to feed the cpu.

2.3 Voltage Identification
The Voltage Identification (VID) specification for the processor is defined by the Voltage
Regulator-Down (VRD) 11.0 Processor Power Delivery Design Guidelines For Desktop
LGA775 Socket. The voltage set by the VID signals is the reference VR output voltage
to be delivered to the processor VCC pins
(see Chapter 2.6.3 for VCC overshoot
specifications). Refer to Table 14 for the DC specifications for these signals. Voltages
for each processor frequency is provided in Table 5.
Individual processor VID values may be calibrated during manufacturing such that two
devices at the same core speed may have different default VID settings
. This is
reflected by the VID Range values provided in Table 5. Refer to the Intel® Core™2 Duo
Desktop Processor E6000 and E4000 Sequence and Intel® Core™2 Extreme Processor
X6800 Specification Update for further details on specific valid core frequency and VID
values of the processor. Note this differs from the VID employed by the processor
during a power management event (Thermal Monitor 2, Enhanced Intel SpeedStep®
Technology, or Extended HALT State).
The processor uses six voltage identification signals, VID[6:1], to support automatic
selection of power supply voltages. Table 2 specifies the voltage level corresponding to
the state of VID[6:1]. A ‘1’ in this table refers to a high voltage level and a ‘0’ refers to
a low voltage level. If the processor socket is empty (VID[6:1] = 111111), or the
voltage regulation circuit cannot supply the voltage that is requested, it must disable
itself. The Voltage Regulator-Down (VRD) 11.0 Processor Power Delivery Design
Guidelines For Desktop LGA775 Socket defines VID [7:0], VID7 and VID0 are not used
on the processor; VID0 and VID7 are strapped to VSS on the processor package. VID0
and VID7 must be connected to the VR controller for compatibility with future
processors.
 
That said, with EIST on the VID does seem to flip depending on the multiplier that's set in Core Temp on my Q6600...
 
I don't know how good the relation of VID to max OC is... but my friend's B3 @ 1.25v VID can do 3.6ghz easy. My system just barely do 3.5 stable.
 
B3 with 1.300v VID

Currently running 3.3GHz @ 1.45v max temp 70C on water (3.6GHz was NOT stable at 1.5v on water and cant go lower than 1.45v at 3.3 or its unstable)
 
would be cool if you had percentages next to the VID's for each stepping.

Just to show how the percentage of G0 stepping chips with low VID's is much higher.

------------------------------------------------------------

34 replies so far for B3 stepping Q6600s:

1 person had a VID of 1.1625V -- 3%
1 person had a VID of 1.2125V -- 3%
1 person had a VID of 1.2500V -- 3%
2 people had a VID of 1.2625V -- 6%

4 people had a VID of 1.2750V -- 12%
5 people had a VID of 1.2875V -- 15%
4 people had a VID of 1.3000V -- 12%
1 person had a VID of 1.3100V -- 3%
5 people had a VID of 1.3125V -- 15%
10 people had a VID of 1.3250V -- 29%

15% with 1.2625v or less
59% with 1.300v or more


-------------------------------------------------------------------------

16 replies so far for G0 stepping Q6600s:

1 person had a VID of 1.1520V - 6%
1 person had a VID of 1.2125V - 6%
1 person had a VID of 1.2375V - 6%
3 people had a VID of 1.2500V - 19%
4 people had a VID of 1.2625V - 25%

1 person had a VID of 1.2850V - 6%
2 people had a VID of 1.2875V - 12.5%
4 people had a VID of 1.3000V - 25%

62% with 1.2625v or less!!
25% with 1.3000v +

might not add up exactly to 100% since I rounded several times
 
vidse4.jpg


B3 VID:1.1625v
SL9UM Pack Date: 07/11/07

About to add a second fan to my Ninja B and then im going to see how high I can clock it.
 
B3
SL9UM
L720A177
Pack date: 07/02/07
Tjunction: 100 C

VID: 1.2875v
 
B3 1.325v
Core Temp 0.95 would reboot my system everytime I tried to run it, 0.94 works just fine though.
 
Search google, this same thread is on around 16 different forums posted by the same guy. he ought to get a lot of results to compile!
 
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