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Aarrggimapirate

Vcore or Special VID?

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Should I raise the vcore or raise the special vcore percantage? I have heard that you should use the % raise and not the vcore, but im not sure. Anyone know which one is better to raise?

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Raise the special to up the voltage. Only raise the vcore if there isn't a "sweet spot" in the special that you need. I suggest 1.325 startup, and 1.325 vcore, and use the special to raise from there. I use 123%, and bios, and other softwares report it as about 1.58 (a little under the calculated 1.63). Use only the least amount possible to get the overclock you want, and watch the temps.

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It was suggested by the OCZ guys. Some of them could clock their (poor CBBID clocking) Winchesters much higher using special vid instead of vcore. There was a reason for it according to them, not sure if they actually mentioned it in their post. It was on xtremesystems, but you might try a search for it overhere as well.

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Is there a reason why raising the special would be differant[sic] then just raising the vcore to what the special calculates out to be?

 

It is not "Vcore OR Special VID", it's VCore AND Special VID Control. Think of the VCore and the Special VID Control as two math-multipliers that work in combination together to give us users more tweak-ability.

 

Example: 110%, 126% and 133% are really multipliers expressed as x 1.1, x 1.26 and x 1.33

 

So, say your VCore is set at 1.25v and your Special VID Control is 126%, you would do this: 1.25 x 1.26 = 1.575v The 1.575v is the resulting voltage. The "real-world" voltage, when you are logged in to your OS, will be a bit less than that, however. These LANPARTY motherboards are extra voltage-hungry. Click here and scroll about half-way down to see THunDA's very helpful voltage chart. It will be a big help to you.

 

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

:cool:

DRACULA

• MoBo
= DFI LANPARTY nF4 SLI-DR

• CPU
= FX-57 (90nm
process, San Diego core
) [ADAFX57BNBOX]

• Memory
= 1GB of OCZ Technology (1T
Mode
), EL DDR PC-4800 Dual Channel Platinum Elite Edition (
hand-picked,
100%
TCCD
chips
), Qt.2 [OCZ6001024EEPE-K]

• Hard Drives
=
a)
74GB WD Raptor, Qt.4 [WD740GD]
B)
500GB Hitachi Deskstar 7K500 SATA II, Qt.4 [0A31619] *** Total SATA Storage:
2.296
Terabytes
***

• BIOS
= 702-2 with Change-Log Update

• OS
= Windows XP Pro SP2
and
Windows XP Pro x64-bit

• Video Card
(
single card,
non
-
SLI Mode
) = BFG GeForce 6800 Ultra OC™ PCIe 512MB GDDR3/TV-Out/Dual-DVI (
Retail Box
) [bFGR68512UOCX]

• Video Driver
(
nVIDIA
) = ForceWare v77.77 (
non
-Beta
)

• Monitor
= ViewSonic VP191
b
(
new
8ms
revision
)

• Optical Drives
= ASUS DRW-1608p, Qt.2 [DRW1608P]

• Floppy Drive
= MITSUMI 8 in 1, Multi-Media Drive [FA404M]

• Case
= Aspire X-Navigator, mid-Tower [ATXA8NW-BK]

• Cooling
(
air only
) =
a)
Thermalright XP-90C Heat-Sink
B)
92mm Vantec Tornado (119
CFM
- 4800
RPM
's - 56.4
dBA
) CPU Fan [TD9238H]
c)
Arctic Silver 5 compound

• PSU
= Thermaltake,
680
Watts
, SLI-ready [W0049]

• Audio
= Creative Labs, GigaWorks S750 (
700
Watts
,
7.1
Channel
Speaker System – Retail
) [51MF7010AA000]

"Feel however you want. Your opinion still has all the appeal of a warm, flat beer."

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It is not "Vcore OR Special VID", it's VCore AND Special VID Control. Think of the VCore and the Special VID Control as two math-multipliers that work in combination together to give us users more tweak-ability.

 

Example: 110%, 126% and 133% are really multipliers expressed as x 1.1, x 1.26 and x 1.33

 

So, say your VCore is set at 1.25v and your Special VID Control is 126%, you would do this: 1.25 x 1.26 = 1.575v The 1.575v is the resulting voltage. The "real-world" voltage, when you are logged in to your OS, will be a bit less than that, however. These LANPARTY motherboards are extra voltage-hungry. Click here and scroll about half-way down to see THunDA's very helpful voltage chart. It will be a big help to you.

 

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

:cool:

DRACULA

• MoBo
= DFI LANPARTY nF4 SLI-DR

• CPU
= FX-57 (90nm
process, San Diego core
) [ADAFX57BNBOX]

• Memory
= 1GB of OCZ Technology (1T
Mode
), EL DDR PC-4800 Dual Channel Platinum Elite Edition (
hand-picked,
100%
TCCD
chips
), Qt.2 [OCZ6001024EEPE-K]

• Hard Drives
=
a)
74GB WD Raptor, Qt.4 [WD740GD]
B)
500GB Hitachi Deskstar 7K500 SATA II, Qt.4 [0A31619] *** Total SATA Storage:
2.296
Terabytes
***

• BIOS
= 702-2 with Change-Log Update

• OS
= Windows XP Pro SP2
and
Windows XP Pro x64-bit

• Video Card
(
single card,
non
-
SLI Mode
) = BFG GeForce 6800 Ultra OC™ PCIe 512MB GDDR3/TV-Out/Dual-DVI (
Retail Box
) [bFGR68512UOCX]

• Video Driver
(
nVIDIA
) = ForceWare v77.77 (
non
-Beta
)

• Monitor
= ViewSonic VP191
b
(
new
8ms
revision
)

• Optical Drives
= ASUS DRW-1608p, Qt.2 [DRW1608P]

• Case
= Aspire X-Navigator, mid-Tower [ATXA8NW-BK]

• Cooling
(
air only
) =
a)
Thermalright XP-90C Heat-Sink
B)
92mm Vantec Tornado (119
CFM
- 4800
RPM
's - 56.4
dBA
) CPU Fan [TD9238H]
c)
Arctic Silver 5 compound

• PSU
= Thermaltake,
680
Watts
, SLI-ready [W0049]

• Audio
= Creative Labs, GigaWorks S750 (
700
Watts
,
7.1
Channel
Speaker System – Retail
) [51MF7010AA000]

 

 

I think Aarrggimapirate meant is there a diff between having 1.65 Vcore (Special - 100%) = 1.65V final voltage

 

vs.

 

1.50 Vcore * 110% = 1.65V final voltage.

 

Both final values are 1.65V but is it better to have lower vcore and bump special? or have more vcore and no special...both which effectively reach the same final voltage.

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Both final values are 1.65V but is it better to have lower vcore and bump special? or have more vcore and no special...both which effectively reach the same final voltage.

 

It was suggested by the OCZ guys. Some of them could clock their (poor CBBID clocking) Winchesters much higher using special vid instead of vcore. There was a reason for it according to them, not sure if they actually mentioned it in their post. It was on xtremesystems, but you might try a search for it overhere as well.

 

As loc.o already said the ocz guys found that using a lower vid and a higher special to achieve your desired vcore tends to work better.. This was originally found with winnie cpu's but I guess most people including me have continued using it this way no matter what cpu is being used..

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