X48-ds4/q9550 = 400 fsb

[prichina]

Hi ,i will need some help in doing 400 fsb,i have flashed my MB with F3B bios.




i dont think i should change anything with my system memory since i want to go 400 fsb. What should i do in bios ,need some pictures from my bios?

[Chike]

Re: X48-ds4/q9550 = 400 fsb

Will be helpful to know your current settings,
Please fill the template below, ignore the values in it, replace them with your own current BIOS settings and post them back, someone will surely be able to assist you.

MB Intelligent Tweaker(M.I.T.)

Robust Graphics Booster___________ [Auto]
CPU Clock Ratio ____________ [8] 
Fine Clock Ratio ____________[0.5]
CPU Host Clock Control_ [Enabled]
CPU Host Frequency (MHz)__________ [450] 
PCI Express Frequency (Mhz)_______ [100]
C.I.A. 2__________________________ [Disabled]
Performance Enhance = [Standard]
System Memory Multiplier (SPD)____ [2.00]
DRAM Timing Selectable_______ SPD __ [Manual]
********   Standard Timing Control    ********
CAS Latency Time________________ 
Dram RAS# to CAS# Delay_________ 
Dram RAS# Precharge Delay________
Precharge Delay (tRAS)__________ _
********   Advanced Timing Control    ********
ACT to ACT Delay (tRRD)_________ 
Rank Write to READ Delay_________
Write to Precharge Delay__________
Refresh to ACT Delay_____________ 
Read to Precharge Delay__________
Static tRead Value_______________
Static tRead Phase Adjust________ [Auto]
Command Rate (CMD)____________ [Auto]
********   Clock Driving & Skew Control    ********
CPU/PCIEX Clock Driving Control [800mV]
CPU Clock Skew Control [normal]
GMCH Clock Skew Control [Normal]
********   System Voltage Optimized    ********
System Voltage Control____ [Manual]
DDR2 OverVoltage Control__ [+0.300V] 
PCI-E OverVoltage Control_ [+0.1V] 
FSB OverVoltage Control___ [+0.1V] 
(G)MCH OverVoltage Control [+0.1V] 
CPU Voltage Control_______ [1.25]


Advanced BIOS Features

Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Enabled]
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]
x C4/C4E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]
Virtualization Technology................: [Disabled] Enabled if you use Vmware/Virtual PC


Integrated Peripherals

Legacy USB Storage Detect___________________[Disabled] *Note* Must be enabled to flash from USB

[prichina]

Re: X48-ds4/q9550 = 400 fsb





Rank Write to READ Delay = 3 (AUTO like the rest of it) ,there was no room for that on the full screen.

[Chike]

Re: X48-ds4/q9550 = 400 fsb

When you change the FSB the DRAM speed will also increase so you will need to set a multiplier of 2 for DDR-800 with 400FSB (2.00D if I am not misteken).

I wouldn't leave any of the memory timings settings on auto, just set them to the values you see on the left for a start.
Static tRead Value may need to be increased too, you can begin with 8, 9 or even 10 just to be on the safe side.

PCI Express Frequency should also not be left on auto, but I don't know if it should be 100 like the EP45/43 motherboards or not.

Your MCH OverVoltage is normal, with 2x2GB modules you may need to increase it, though I don't know this board and what's normal MCH is for it.

If you have not began with optimized defaults it is recommended that you do so, and change them to their current values after optimized default have been saved.

Wait for a more experianced user opinion about the PCI frequesncy and MCH OverVoltage.

[Rivenson]

Re: X48-ds4/q9550 = 400 fsb

On X48 MCH Normal Voltage is 1.2500v
Also you can lock PCI Express Fr. to 100

[prichina]

Re: X48-ds4/q9550 = 400 fsb

I overclocked without rasing the MCH voltage ,it is stable ,memory is set to 1:1 ratio with fsb.
So here is my question ,before i overclock my cpu i ONLY underclock my memory(667) to see how it is going...first thing i noticed is the welcome screen by VISTA ,this is the first time i saw it ,so that was 1:1 ratio with the fsb. Another thought ,when i set the fsb to 400 i manually set the multiplier to 2.00D i was curious if i will be able to see the welcome screen again ,but it skipped like before when everything was on auto. So i would like to know what should i do ...how to check what timing is suitble for my memory? I want thet WELCOME screen on VISTA :) It's like ,the PC is too fast for vista....

[Chike]

Re: X48-ds4/q9550 = 400 fsb

I want thet WELCOME screen on VISTA :) It's like ,the PC is too fast for vista....

You are very welcome, forget about the screen LOL
Windows XP does it too, sometimes it shows and others it does not. I think that when windows predicts that work it got to do before it can show the desktop, like update settings or whatever, are going to take some time it show the welcome screen, and if it doesn't have updates to do it skip it.

[prichina]

Re: X48-ds4/q9550 = 400 fsb

So i have another question ,sometimes i see horizontal lines on the screen in a GAME,no matter what game it is,sometimes they show ,sometimes they don't,they are like a GLITCH,is that a GPU metter or RAM ? or maybe MB or CPU? i don't know...

[prichina]

Re: X48-ds4/q9550 = 400 fsb

Ok ,just i thouth,how much should i rise MCH Overvoltage?

[prichina]

Re: X48-ds4/q9550 = 400 fsb

Bump!

[prichina]

Re: X48-ds4/q9550 = 400 fsb

Ok i just want to clarify that this mobo with this quad goes 444 fsb only with raisng vcore to 1.30625. (tested with linx -50 passes) and 1:1 ratio fsb:ram