Asrock 775Dual-VSTA Volt Mods

[jimmor]

Originally Posted by Jor3lBR

Jim:

Regarding the 335fsb I edited my post above, please read.

Turns out it was a e6600 not the e4400, I brought 2 exact systems (for me and cousin) and as I was assembling them together and doing the move at the same time I screw up on the processors.

e6600 max was 335fsb.
e4400 max unstable was 315-319fsb

e4400 at 315fsb gives instant errors os orthos cpu stress (10k fft).

I assume your E6600 at 335 overclock was not on an asrock 4coredual mobo ?

And to improve your 315 stability, I suggest you reduce Vcore to around 1.45v and increase Vagp to around 1.9-1.95V !

My experience is that the Vcore regulator of this mobo is not very stable for C2D loads above 3Ghz, so maybe a regulator "droop" mod should also be considered ?

[Alchemist]

My E2180
On 775Dual-VSTA Motherboard.
No volt mods
So far booted @310FSB
Stable @300FSB
Cpu-z voltage average 1.28
Water cooling it but that should not make any difference at this speed.


Guy’s please contribute and share put in the specs that work best for you.

BIOS 3.00

CPU Configuration

Overclock Mode [CPU,PCIE Async.]
CPU Frequency (MHz) [300]
PCIE Frequency (MHz) [100]
PCI Frequency [33.33MHz]
Spread Spectrum [Disabled]
Boot Failure Guard [Enabled]

Ratio Active Value 10

Max CPUID Value Limit [Disabled]
No-Execute Memory Protection [Disabled]

Chipset Configuration

DRAM Frequency [266MHz (DDRII533) ]
Flexibility Option [Disabled]
DRAM CAS# Latency [5]
DRAM Bank Interleave [Auto]
Precharge to Active (Trp) [5T]
Active to Precharge (Tras) [15T]
Active to CMD (Trcd) [5T]
REF to ACT/REF to REF (Trfc) [Auto]
ACT (0) to ACT (1) (Trrd) [Auto]
Read to Precharge (Trtp) [Auto]
Write to Read CMD (Twtr) [Auto]
Write Recovery Time (Twr) [Auto]
DRAM Bus Selection [Dual Channel]
DRAM Command Rate [2T Command]

→ Advanced Memory Configuration [Untouched]

DRAM Drv DQS [Auto]
DRAM Drv CS [Auto]
DRAM Drv DCLKA,B [Auto]
DCLK Output Duty Ctrl [Auto]

CLKBUF DDRA group delay [Auto]
CLKBUF DDRB group delay [Auto]
CLKBUF FB_OUTA delay [Auto]
CLKBUF FB_OUTB delay [Auto]
CLKBUF DDRA Drv [3x]
CLKBUF DDRB Drv [3x]
CLKBUF FB_OUTA Drv [4x]
CLKBUF FB_OUTA Drv [4x]

→ Advanced Host Configuration

Pipeline DRQCTL [Enabled]
GTL Control [Auto]
3V66 group delay [Auto]


DRAM Voltage [High]
AGP Voltage [High]

Primary Graphics Adaptor [AGP]
AGP Mode [8x]
AGP Fast Write [Enabled]
AGP Aperture Size [256MB]
AGP Staggered Delay [Auto]
AGP GADSTB Output Delay [Auto]
AGP 3.0 Calibration [Auto]
AGP 3.0 DBI Function [Auto]
DBI Output for AGP Trans. [Auto]
DBI Output for FRAME Trans. [Auto]

V-Link Speed [Fast]

PCI Delay Transaction [Disabled]
IDE Drive Strength [Normal]
PCIE Downstream Pipeline [Auto]
OnBoard LAN [Enabled]
OnBoard HD Audio [Enabled]
Front Panel [Enabled]
CD-In [Enabled]
Bus No. [Enabled]
Echo TPR Disable [Auto]


Have since done the BSEL pin mod, Bios recognises it as a 1066 MHz CPU, Automatic overclock.

As per picture in post 29 of below link.

http://www.xtremesystems.org/forums/...=134550&page=2

[jimmor]

Originally Posted by Alchemist

My E2180
On 775Dual-VSTA Motherboard.
No volt mods
So far booted @310FSB
Stable @300FSB
Cpu-z voltage average 1.28
Water cooling it but that should not make any difference at this speed.


Guy’s please contribute and share put in the specs that work best for you.

BIOS 3.00

CPU Configuration
Overclock Mode [CPU,PCIE Async.]
CPU Frequency (MHz) [300]
PCIE Frequency (MHz) [100]
PCI Frequency [33.33MHz]
Spread Spectrum [Disabled]
Boot Failure Guard [Enabled]

Ratio Active Value 10

Max CPUID Value Limit [Disabled]
No-Execute Memory Protection [Disabled]

Chipset Configuration
DRAM Frequency [266MHz (DDRII533) ]
Flexibility Option [Disabled]
DRAM CAS# Latency [5]
Precharge to Active (Trp) [5T]
Active to Precharge (Tras) [15T]
Active to CMD (Trcd) [5T]
REF to ACT/REF to REF (Trfc) [Auto]
ACT (0) to ACT (1) (Trrd) [Auto]
Read to Precharge (Trtp) [Auto]
Write to Read CMD (Twtr) [Auto]
Write Recovery Time (Twr) [Auto]
DRAM Bus Selection [Dual Channel]
DRAM Command Rate [2T Command]

→ Advanced Memory Configuration [Untouched]

→ Advanced Host Configuration

Pipeline DRQCTL [Enabled]
GTL Control [Auto]
3V66 group delay [Auto]


DRAM Voltage [High]
AGP Voltage [High]

Primary Graphics Adaptor [AGP]
AGP Mode [8x]
AGP Fast Write [Enabled]
AGP Aperture Size [256MB]
AGP Staggered Delay [Auto]
AGP GADSTB Output Delay [Auto]
AGP 3.0 Calibration [Auto]
AGP 3.0 DBI Function [Auto]
DBI Output for AGP Trans. [Auto]
DBI Output for FRAME Trans. [Auto]

V-Link Speed [Fast]

PCI Delay Transaction [Disabled]
IDE Drive Strength [Normal]
PCIE Downstream Pipeline [Auto]
OnBoard LAN [Enabled]
OnBoard HD Audio [Enabled]
Front Panel [Enabled]
CD-In [Enabled]
Bus No. [Enabled]
Echo TPR Disable [Auto]


Have since done the BSEL pin mod, Bios recognises it as a 1066 MHz CPU, Automatic overclock.

As per picture in post 29 of below link.

http://www.xtremesystems.org/forums/...=134550&page=2

What rating of DDR2 are you using ?

Because, unless it is real cheap rubbish, running memory at only 300MHz should allow timings of 4-4-12-4-1T or even 3-3-9-3-1T ---> your 5-5-15-5-2T is just throwing away performance?

And if using any IDE devices, extreme overclocking works better (including more stable booting) when IDE Drive strength is set at "highest" ?

[Alchemist]

Originally Posted by jimmor

What rating of DDR2 are you using ?

Because, unless it is real cheap rubbish, running memory at only 300MHz should allow timings of 4-4-12-4-1T or even 3-3-9-3-1T ---> your 5-5-15-5-2T is just throwing away performance?

And if using any IDE devices, exrtreme overclocking works better (including more stable booting) when IDE Drive strength is set at "highest" ?

Your right, I slackened the Ram timings to eliminate the Ram as a problem in overclocking and have not yet tightened the timings, till I exhaust all other factors in increasing the FSB.

Have you got any different Bios settings that you think are positive and that I should try?

[jimmor]

Originally Posted by Alchemist

Your right, I slackened the Ram timings to eliminate the Ram as a problem in overclocking and have not yet tightened the timings, till I exhaust all other factors in increasing the FSB.

Have you got any different Bios settings that you think are positive and that I should try?

Another point would be that overclocking generally works better when PCI-E Freq is also overclocked above it's 100MHz default ---> and not a problem for you since your setup is using a AGP vga card ?

For example, overclocking my E4400/4coredual setup anywhere around 315-320 range is more stable when PCI-E Freq is at 119MHz !

Your 300-310 o/c would however require a different PCIE value. And simplest way to test for effect would be by using "Overclock Mode" at 'CPU, PCIE Sync' ?

[Alchemist]

Originally Posted by jimmor

Another point would be that overclocking generally works better when PCI-E Freq is also overclocked above it's 100MHz default ---> and not a problem for you since your setup is using a AGP vga card ?

For example, overclocking my E4400/4coredual setup anywhere around 315-320 range is more stable when PCI-E Freq is at 119MHz !

Your 300-310 o/c would however require a different PCIE value. And simplest way to test for effect would be by using "Overclock Mode" at 'CPU, PCIE Sync' ?

Of course setting the PCI-e slot to these high values (119Mhz) is only advisable if you are using and AGP card and your PCI-e slot is empty right?
I'll play with 'CPU, PCIE Sync' a bit and see what more I can extract.
Thanks for the tips.

[Johnny Bravo]

I get the feeling that PCI-e may be tied in with SATA (usually is on other boards) So you may wanna be careful if running a SATA harddisk and going for big pci-e frequencies as it may corrupt .

Guys I was wondering if you have or have heard of, this board having a bit of a brick wall on the FSB. After giving the board a full cap swap and the vmods I can run 329FSB rock stable, no problems everything is fine. If I set the BIOS to 330 it freezes at the POST! I've tried single sticks of memory DDR and DDR2, loose timings, everything auto, the works - nothing seems to make a difference. Have you any ideas cus I'm fresh out

[jimmor]

Originally Posted by Johnny Bravo

I get the feeling that PCI-e may be tied in with SATA (usually is on other boards) So you may wanna be careful if running a SATA harddisk and going for big pci-e frequencies as it may corrupt .

Guys I was wondering if you have or have heard of, this board having a bit of a brick wall on the FSB. After giving the board a full cap swap and the vmods I can run 329FSB rock stable, no problems everything is fine. If I set the BIOS to 330 it freezes at the POST! I've tried single sticks of memory DDR and DDR2, loose timings, everything auto, the works - nothing seems to make a difference. Have you any ideas cus I'm fresh out

Like AGP and EIDE, SATA is tied to PCI bus ---> which should always be left at default of 33.33!

Other than the fsb wall being the max bios option of 340, don't know that there is anything else built-in that would force any lower level?

Max stable o/c I have achieved with either 4coredual-vsta or 4coredual-sata2 is 322. Although I haven't yet tried a capacitor "all change" mod.

However, during my mod and o/c testing, I observed that "V-Link" option had a dramatic effect on overclocking levels ---> particularly on 4coredual-sata2. Where V-Link had to be at fastest setting to achieve stable 320's ---> so maybe V-Link "fastest" setting needs to be "faster" and/or the southbridge operating volts, etc, is somehow involved with your apparent overclock wall ??

[jimmor]

Originally Posted by Alchemist

Of course setting the PCI-e slot to these high values (119Mhz) is only advisable if you are using and AGP card and your PCI-e slot is empty right?

Correct, PCI-E at 119MHz will have no effect on AGP card!

[hobo man]

hey guys,

Anyone got any tips on running the 4core bios on the DualVSTA?

Just been having some fun trying to get the NB HS off and its the ultra soooo... :P

[Johnny Bravo]

Originally Posted by jimmor

Like AGP and EIDE, SATA is tied to PCI bus ---> which should always be left at default of 33.33!

Good good only reason I say it because I had a Asus P4GD1 board which for some reason they tied the PCI-e to the SATA which proved to be a limiting factor at the time.

I will play with e V-link see if it gets me anywhere - cheers

John

[jimmor]

Originally Posted by hobo man

hey guys,

Anyone got any tips on running the 4core bios on the DualVSTA?

Just been having some fun trying to get the NB HS off and its the ultra soooo... :P

775dual and 4coredual mobos are essentially same, which means all the mobo mods and bios setting tips in this thread apply equally to both !

[Alchemist]

hey guys,

Anyone got any tips on running the 4core bios on the DualVSTA?

Just been having some fun trying to get the NB HS off and its the ultra soooo... :P

Originally Posted by jimmor

775dual and 4coredual mobos are essentially same, which means all the mobo mods and bios setting tips in this thread apply equally to both !

I think he’s talking about flashing the 4coredual-vsta bios onto his 775dual-vsta board.

I have read about that being done before successfully, I don’t know if you would be able to run a 4core CPU on the 775dual-vsta board after the bios flash.

Does anybody know if that’s been done before?

[Johnny Bravo]

Alchemist I was able to boot the 4coredual board wit ha 775dual BIOS (bad flash on the 4coredual so glad I still had the other board).

Seems reasonable to say that they are interchangeable from a BIOS point of view but you will have issues wit the flashing program saying the board isn't compatible so you'll need to use a standard BIOS flashing program like AMI winflash or such like.

[Johnny Bravo]

Actually I know I'm not the first to do this but it's a goal I've been aiming at for a long time!

In the end what made it possible? Vagp....all 2.2volts of it

To be honest it's a bit of an anti climax because I wanted these speeds to be usable for AGP card overclocking but most cards start to experience problems around 1.95-2.00volts on the agp so I'm gonna have to reign it back down

Anyway here's some eye candy/inspiration for you guys




John

[hobo man]

whoa, nice one johnny bravo :P

You said that you ran the 4core bios on the VSTA - did that fix the PT880 pro being shown in cpuz, when you have an ultra?

cheers hobo

[Johnny Bravo]

Never checked - you can see that in the SS above that its reported by cpuz as a Pro but EVEREST says ultra (which it is). I recall cpuz used to get it right then on a recent version decided to change it mind

[Alchemist]

J.Bravo
Congrats in getting to the 340FSB club.

Can you still remember what the resistance was to give you the 2.2VNB?

What are you using for Northbridge cooling these days?

[Johnny Bravo]

Originally Posted by Alchemist

J.Bravo
Congrats in getting to the 340FSB club.

Can you still remember what the resistance was to give you the 2.2VNB?

What are you using for Northbridge cooling these days?

Thanks alchemist

Using a VR so dunno off the top of my head will find out for ya

Cooling is via swiftech NB air cooler and delta fan

[jimmor]

Johnny Bravo,

Now that SetFSB supports the 4coredual RTM866-890 PLL, a 350 FSB is maybe possible??

http://www13.plala.or.jp/setfsb/

[Alchemist]

Originally Posted by jimmor

Johnny Bravo,

Now that SetFSB supports the 4coredual RTM866-890 PLL, a 350 FSB is maybe possible??

http://www13.plala.or.jp/setfsb/

Hey Jimmor thats a good find!

[Paulo Jorge]

Originally Posted by jimmor

Johnny Bravo,

Now that SetFSB supports the 4coredual RTM866-890 PLL, a 350 FSB is maybe possible??

http://www13.plala.or.jp/setfsb/

Yes it is possible jimmor. Here's the proof :

345



350



355





Here's the cpu-z validation so that everyone can see that's not a photoshop job

359



Here's the cpu-z validation so that everyone can see that's not a photoshop job

MY SETTINGS

BIOS 2.00

CPU Configuration

Overclock Mode [CPU,PCIE Async.]
CPU Frequency (MHz) [340]
PCIE Frequency (MHz) [124]
PCI Frequency [34.78MHz]
Spread Spectrum [Disabled]
Boot Failure Guard [Disabled]


Max CPUID Value Limit [Disabled]
No-Execute Memory Protection [Disabled]

Chipset Configuration

DRAM Frequency [Auto]
Flexibility Option [Disabled]
DRAM CAS# Latency [5]
DRAM Bank Interleave [Auto]
Precharge to Active (Trp) [5T]
Active to Precharge (Tras) [15T]
Active to CMD (Trcd) [5T]
REF to ACT/REF to REF (Trfc) [Auto]
ACT (0) to ACT (1) (Trrd) [Auto]
Read to Precharge (Trtp) [Auto]
Write to Read CMD (Twtr) [Auto]
Write Recovery Time (Twr) [Auto]
DRAM Bus Selection [Dual Channel]
DRAM Command Rate [2T Command]

→ Advanced Memory Configuration [Untouched]

DRAM Drv DQS [Auto]
DRAM Drv CS [Auto]
DRAM Drv DCLKA,B [Auto]
DCLK Output Duty Ctrl [Auto]

CLKBUF DDRA group delay [Auto]
CLKBUF DDRB group delay [Auto]
CLKBUF FB_OUTA delay [Auto]
CLKBUF FB_OUTB delay [Auto]
CLKBUF DDRA Drv [3x]
CLKBUF DDRB Drv [3x]
CLKBUF FB_OUTA Drv [4x]
CLKBUF FB_OUTA Drv [4x]

→ Advanced Host Configuration

Pipeline DRQCTL [Enabled]
GTL Control [Auto]
3V66 group delay [Auto]


DRAM Voltage [High]
AGP Voltage [High]

Primary Graphics Adaptor [AGP]
AGP Mode [4x]
AGP Fast Write [Enabled]
AGP Aperture Size [64MB]
AGP Staggered Delay [Disabled]
AGP GADSTB Output Delay [Disabled]

V-Link Speed [Fast]

PCI Delay Transaction [Disabled]
IDE Drive Strength [Low]
PCIE Downstream Pipeline [Auto]
OnBoard LAN [Disabled]
OnBoard HD Audio [Disabled]
Echo TPR Disable [Auto]

And have disabled all the other stuff in the SuperIO configuration.

Used pencil mod. Vtt - 0,68KOhm and Vagp - 1.4KOhm, i prefere to measure right in the resistors.

The mean bench machine



I thank you all for this because without you guys i couldn't do it

[Alchemist]

359FSB Wow

That's a record for this board for sure.

[Johnny Bravo]

Great stuff Paulo Jorge , I was wondering if it would be possible to measure the vagp for us please?

[Paulo Jorge]

Not at all Johnny.

Vagp - 2.11v
Vvtt - 4v

Bought the multimeter in a cheap chinese store so i'm not sure how exactly is the measures