eVGA 780i A1 bios tweaks

chrome-187 · Mar 28, 2009

Sup guys. i dont think my overclock on my evga 780i -a1 of 3.6 ghz on my q9450 with 1,38v is the best i can get. i struggle to get 3.8ghz with any kind of voltage, i've only pushed it up to 1.450, i dont want to go any higher. My system freezes periodically out of no where and i think its the motherboard causing it. my system boots and runs fine but i always have code FF showing on the digital display of my mobo, isnt that a bad bios code? is there a tweek guide to overclocking my 780i that tells me what i should enable and disable in the bios? thanks :bang head

redduc900 · Mar 28, 2009

Using this BIOS template for the EVGA 780i, post all of your current settings (just disregard the settings included in the template)...

Code:

eVGA/XFX 780i BIOS Settings (P03)
 
** Frequency Setting **
CPU Multiplier - x9
PCIe x16_3, MHz - 120
SSP<->MCP Ref Clock, MHZ - 250.0
 
** HT Multiplier **
nforce SPP --> nForce MCP 4 x
nforce SPP <-- nForce MCP 4 x
 
** Spread Spectrun Setting **
x CPU Spread Spectrun - Disabled
x HT Spread Spectrun - Disabled
x PCIe Spread Spectrun(MCP) - Disabled
x SATA Spread Spectrun - Disabled
 
FSB - Memory Clock Mode - Unlinked
x FSB - Memory Ratio - Auto
FSB (QDR), MHz - 1700
MEM (DDR), MHz - 907
 
Memory Timing Setting - Expert
tCL (CAS Latency) - 4
tRCD - 3
tRO - 3
tRAS - 8
Command Per Clock (CMD) - 2T
 
** Advance Memory Settings **
tRRD - Auto(4) (4)
tRC - Auto(26) (26)
tWR - Auto(6) (6)
tWTR - Auto(10) (9)
tREF - Auto (7.8uS)
 
Limit CPUID MaxVal - Disabled
Intel SpeedStep - Disabled
PPM Mode - Native Mode
CPU Thermal Control - Disabled
C1E Enhanced Halt State - Disabled
Excute Disable Bit - Disabled
Virtualization Technology - Disabled
CPU Core 0 - Enabled
CPU Core 1 - Enabled
CPU Core 2 - Enabled
CPU Core 3 - Enabled
 
CPU Core - 1.60000 (1.52v)
CPU FSB - Auto (1.4v)
Memory - 2.200v ( 2.200v)
nForce SPP - Auto (1.40v)
nForce MCP - Auto (1.500v)
 
GTLVREF Lane 0 - Auto (+00mv)
GTLVREF Lane 1 - Auto (+95mv)
GTLVREF Lane 2 - Auto (+00mv)
GTLVREF Lane 3 - Auto (+00mv)

chrome-187 · Mar 28, 2009

how do i do the bios template? never heard of it before?

redduc900 · Mar 28, 2009

I've listed all of your BIOS options in the template I posted. Write down all of your current BIOS settings, replacing the template settings I posted above with your own, then post your template in this thread (enclosed by CODE tags to make it easier to read).

chrome-187 · Mar 28, 2009

ok i must not be getting this right..sorry, but how did you make your template? i have no clue how to make a template like that, i'd like to know how. Is there anyway to check all my bios settings within windows rather then going to the bios itself at bootup?

gigabit · Mar 28, 2009

Mine shows FF all the time.Is this a problem?

chrome-187 · Mar 29, 2009

i don't know how to make the template...so im just going to copy and paste my settings...i have them listed like yours redduc but i have replaced your settings with my settings...the settings we have different i used bold text to help it stick out....

eVGA/XFX 780i BIOS Settings (P03)
Q9450 CPU

** Frequency Setting **
CPU Multiplier - x8
PCIe x16_3, MHz - 100
SSP<->MCP Ref Clock, MHZ - 200

** HT Multiplier **
nforce SPP --> nForce MCP 5 x
nforce SPP <-- nForce MCP 5 x

** Spread Spectrun Setting **
x CPU Spread Spectrun - Disabled
x HT Spread Spectrun - Disabled
x PCIe Spread Spectrun(MCP) - Disabled
x SATA Spread Spectrun - Disabled

FSB - Memory Clock Mode - Unlinked
x FSB - Memory Ratio - Auto
FSB (QDR), MHz - 1800
MEM (DDR), MHz - 1063

Memory Timing Setting - Expert
tCL (CAS Latency) - 5
tRCD - 5
tRO - 5
tRAS - 15
Command Per Clock (CMD) - 2T

** Advance Memory Settings **
tRRD - Auto(4) (4)
tRC - Auto(48) (48)
tWR - Auto(6) (6)
tWTR - Auto(10) (10)
tREF - Auto (7.8uS)

Limit CPUID MaxVal - Disabled
Intel SpeedStep - Disabled
PPM Mode - Native Mode
CPU Thermal Control - Disabled
C1E Enhanced Halt State - Disabled
Excute Disable Bit - ENABLED
Virtualization Technology - ENABLED
CPU Core 0 - Enabled
CPU Core 1 - Enabled
CPU Core 2 - Enabled
CPU Core 3 - Enabled

CPU Core - 1.38125 (1.36v)
CPU FSB - 1.4V (1.4v)
Memory - 2.200v ( 2.200v)
nForce SPP - 1.40 (1.40v)
nForce MCP - 1.50 (1.500v)
HT nforce SPP <-> MCP - 1.4v (1.4v)

GTLVREF Lane 0 - Auto (+00mv)
GTLVREF Lane 1 - Auto (+00mv)
GTLVREF Lane 2 - Auto (+00mv)
GTLVREF Lane 3 - Auto (+00mv)

redduc900 · Mar 29, 2009

Give these settings a try for 455MHz x 8...

Code:

FSB - Memory Clock Mode - Linked
x FSB - Memory Ratio - Sync Mode
FSB (QDR), MHz - 1820
MEM (DDR), MHz - 910

Memory - 2.0v
nForce SPP - 1.45v
nForce MCP - 1.60v

GTLVREF Lane 0 - +30mv
GTLVREF Lane 1 - +30mv
GTLVREF Lane 2 - +30mv
GTLVREF Lane 3 - +30mv

And a FF post code means a normal boot.

chrome-187 · Mar 29, 2009

so i should change my GTLVREF to +30 on all them?

redduc900 · Mar 29, 2009

Yes, then run Prime and make a note of which core(s) if any fails. You can then adjust the GTL vREFs that correspond to the failed core(s) accordingly. You might also want to try adding +30mv to only cores 1 & 3...

Code:

GTLVREF Lane 0 - +00mv
GTLVREF Lane 1 - +30mv
GTLVREF Lane 2 - +00mv
GTLVREF Lane 3 - +30mv

chrome-187 · Mar 29, 2009

redduc900 said:
Yes, then run Prime and make a note of which core(s) if any fails. You can then adjust the GTL vREFs that correspond to the failed core(s) accordingly. You might also want to try adding +30mv to only cores 1 & 3...

Code:

GTLVREF Lane 0 - +00mv GTLVREF Lane 1 - +30mv GTLVREF Lane 2 - +00mv GTLVREF Lane 3 - +30mv

see thats the thing...prime95 is stable right now...it never fails with my settings as is...its just sometimes my comp will just freeze...and its usually, usually when playing media, like movies and what not. and its just out of the blue...im thinkin maybe the mobo is getting too hot or somethin..maybe the mobo isnt able to run 1800mhz fsb very easy....i know the cpu is stable...i got this even with cpu @ 3ghz with 1800fsb...even kept the voltage @ 1.38....im leaning toward the mobo or power supply...or a setting

but the core that is keeping me from getting 3.6 @ 1.32v is core 0....this is kind of off topic, but to get core 0 (which is the 1st of the 4 cores) stable @ 1.32v i can raise the GTL for that core?

gigabit · Mar 30, 2009

Mine does this once in a while i think its a driver issue.Are you running raid?I dont get it when i use a non raid setup

eVGA 780i A1 bios tweaks

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