Gigabyte GA X38 DQ6 Blog

[X-Kenshin-X]

i still ran small FFT's, CPU test only... so... yeah...

[X-Kenshin-X]

ALL RIGHT! i left it running all morning for about a few hours (memtest), and it went all the way up to 2400% and 0 errors!

going to test prime shortly, after i set the skew to 800, and gtrlef to normal...

[supershanks]

ALL RIGHT! i left it running all morning for about a few hours (memtest), and it went all the way up to 2400% and 0 errors!

Excellent

going to test prime shortly,

So any failure there should be down to CPU.

[X-Kenshin-X]

yup, the test ran for about 1 minute and 30 seconds, and the test failed.... small FFT's

i don't get it... the cpu voltage is high as it is...

EDIT:
CPU Temps peak at around 65-70Cº and... to my knowledge that is still within the normal realm with the CPU being at 100%

[supershanks]

Try these:-

DDR2 Overvoltage Control: +0.40 (=2.2v)* 
PCI-E OverVoltage Control : +0.10 (=1.60v)
FSB OverVoltage Control : 0.25 ( =1.35v)
(G)MCH OverVoltage Control : 0.35 (=1.80v)
MCH Reference Voltage Control : Normal
DDR Reference Voltage Control : Normal
DDR Termination Voltage Control : Normal
CPU GTLREF1 Voltage* : Auto
CPU GTLREF2 Voltage* : Normal
CPU Voltage Control :1.450  +

Notes:
* is the absolute voltage for info, = base volts + overvoltage.
+ start at that if prime crashes go into bios & increase it 1 unit , repeat untail hopefully it's stable.

let us know how it goes.

[gx8]

Back again with my BIOS Settings

I got my E8400 running at 3.90 GHz

Here are my BIOS settings
MB Intelligent Tweaker (MIT)
Robust Graphics Booster: Auto
CPU Clock Ratio: 9x
CPU Host Clock Control: Enabled
CPU Host Frequency(Mhz) : 434
PCI Express Frequency (Mhz) : 100
C.I.A.2: Disabled
Performance Enhance : Standard
System Memory Multiplier (SPD) 2.00B
Memory Frequency(Mhz):868
DRAM Timing Selectable : Auto
Standard Timing Control
CAS Latency Time: : 5
DRAM RAS# to CAS# : 5
DRAM RAS# Precharge : 5
Precharge Delay(tRAS) : 18
Advanced Timing Control
ACT to ACT Delay(tRRD) : 3
Rank Write to READ Delay : 3
Write To Precharge Delay : 6
Refresh to ACT Delay : 42
Read To Precharge Delay : 3
tRD : 8
tRD Phase Adjustment : 0
Command to #CS Timing: : 2
Clock Driving and Skew Control
CPU/PCIEX Clock Driving Control : 800mV
CPU Clock Skew Control : Normal
(G)MCH Clock Skew Control : Normal
System Voltage Control Auto
DDR2 OverVoltage Control : +0.30V
PCI-E OverVoltage Control : Normal
FSB OverVoltage Control : Normal
(G)MCH OverVoltage Control : Norma
MCH Reference Voltage Control : Normal
DDR Reference Voltage Control : Normal
DDR Termination Voltage Control : Normal
CPU GTLREF1 Voltage* : Auto
CPU GTLREF2 Voltage* : Normal
CPU Voltage Control : Normal
Normal CPU Vcore : 1.22500V

I know running Auto on RAM and Voltages is a little cheesy, but i'll be trying to get away from that to increase the performance.


Now I have 4 GB of Kingston DDR2-8500 in right now, KHX8500D2K2/2G
and on the as backup i have 4 GB of OCZ DDR2 PC2-6400 Reaper HPC Edition, OCZ2RPR8002GK

I also have a QX6850 but i'm using the E8400
with the Q6850 I can only get it to 3.75 but those chips kinda run hot and I don't want to install water cooling just yet.

Thanks in advanced.


===EDIT===
This is currently on a EX38-DQ6 but i have access to a regular X38-DQ6 that i can swap out if it will give me better performance.

[supershanks]

Are you looking to push cpu further ?? You've got a pretty decent clock without upping your vcore. I'd push on , you should be able to get to 500 fairly easily, with a little extra vcore. Whilst finding the maximum CPU speed you are comfortable with I'd keep the ram on 1:1 , then push the ram when cpu is proven stable.

There are a few E8400 settings in this thread Zenoth's clocks & bios settings are linked in the index in post#1 (see Key Posts Section) I'm also playing with an E8200 at the moment & there are some settings etc., in the X48 living review.

luck

[gx8]

Yeah I'm looking to push a little further.

I know on Kingston's website with the Hyper X RAM that I'm using I have to manually set the timings to get it to work at advertised speeds.

I'll check both Zenoth's specs and your X48 Review.

And what is the System Memory Multiplier for 1:1?

[X-Kenshin-X]

ok shanks, i just found out windows xp will boot at a minimum voltage of 1.475

now that i have it running i've been testing, and it's still very unstable, but what i'm wondering is if i just raise up the CPU voltage first, or the PCI-E voltage first, or both at the same time, or what?

[supershanks]

hi gx8,
See bootom pic MB Intelligent Tweaker (M.I.T.) gigabyte include the ddr2 factor in the Strap /Divider referemce so 1:1 = 2.00X where x is the Strap Base (A~D)


X-Kenshin-X,

if i just raise up the CPU voltage first, or the PCI-E voltage first, or both at the same time, or what?

You can do them both together with no issues, but myself would up vcore 1st as doing them separately you get to find which one made any impact. May take more time but gives more insight.

luck