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OC with Corsair Twin 8500 CL5


pushook

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I find it hard to believe that such a w/c system working correctly is returning 62C load temps on 3.15Ghz. My Thermalright Extreme 120 returns better temperatures than that.

 

After researching your g-flow I think you may wish to read this thread:

 

http://www.ocforums.com/showthread.php?t=484559&highlight=innovatek+G-Flow

 

I wonder, are you able to return that block for a swiftech one?

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so again. now i have changed the position of the radiator and placed 2 more fans on it now the radiator stands upright wit 4 fans of 120mm the temps are much better.

 

370fsb - 3330Ghz @ 1,37vcore

temps idle:36-36-34-34 on cpu

MB=38°

NB=43

SB=42°

Dram is @ 984Mhz -5-5-5-15 - 2,1v

 

temps full load: (5min Stress)

cpu=55-55-48-48

MB=39

NB=49

SB=44

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OK, that's decent enough. I would continue the overclock, raising the Vcore when necessary. These G0's can take 70C. They have a tjunction of 100C and a throttle of 80C. So as long as you are below 70C you will be fine. I have to make 1.46V on the core to make 3.6Ghz. So let's see how good your chip is :D:
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So, now I´m on 3,6 Ghz with these settings:

 

45min Prime stable. No reboots like the Bad Axe 2 Motherboard Q 360 Mhz FSB

 

This Board with This Ram is much much better to overclock.

 

vcore: 1.38

SB: 1.07

SB2: 1.54

FSBT: 1.47

DRAM:2.08

NB: 1.44

 

TEMPS: (core Temp 0.94beta)

 

CPU-> 60-60-57-57

MB-> 39

NB-> 49

SB-> 45

 

Auto settings in the bios raised the vcore to 1.43 but I adjusted manually to 1.38. Maybe I can go deeper on the vcore.

 

DRAM voltage are 0.1 different from bios to PCProbeII

Bios Dram Voltage 2.00(bios)->PCProbe readout 2.10v

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Very nice. Your temps are about 8C better than my Air cooling which is fine by itself so you are good.

 

A far better board than the Bad Axe 2. I have another name for that board but will not mention it here.

 

Glad you made the move. Enjoy :p: Your board might be overvolting. You can get a digital multi-meter and test the Vdimm of the board to get a precise readout.

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That is some fine CPU. Don't be afraid to raise the Core Voltage for stability. That's the lowest VID I have seen for a Quad Core.

 

So 420x9 is OCCT stable with these settings:

 

vcore->1.50v->65-69°

NB->1.46v->55°

SB2->1.60v->50^

SB->1.10v

FSBT->1.52v

MB->45°

DRAM->2.10v->840Mhz/1:1 5-5-5-15

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Once you have found your final Overclock and have tested it to be Prime95 stable for ~8 hours, then you can move to optimal DRAM throughput.

 

You are doing well, but it is easy to see that you are not an amateur either. :) That is one of the best Quad Core VID's I have seen. For example, my VID is 1.3V.

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Once you have found your final Overclock and have tested it to be Prime95 stable for ~8 hours, then you can move to optimal DRAM throughput.

 

You are doing well, but it is easy to see that you are not an amateur either. :) That is one of the best Quad Core VID's I have seen. For example, my VID is 1.3V.

 

 

thx to hear that. I think I will stay @ 420x9 for 24/7 but tomorrow I will go on for 440 for a short time if its possible to do that.

 

I have seen you are using core temp 0.95.4b! For me I couldn´t start this new version it ends up in a reboot same on the intel board. I´m suprised thats working on your machine.

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thx to hear that. I think I will stay @ 420x9 for 24/7 but tomorrow I will go on for 440 for a short time if its possible to do that.

 

I have seen you are using core temp 0.95.4b! For me I couldn´t start this new version it ends up in a reboot same on the intel board. I´m suprised thats working on your machine.

 

It works fine on the three boards I am working with atm. P5K-E/Wifi, Commando, Striker 680i.

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Hi DerekT,

 

new situation now with 420FSB

 

Yesterday the sys was OCCT stable. Today I did run a few tests wit everest 4.xx

 

all CPU tests passed

FPU Julia->reboot

FPU Mandel->reboot

FPU SinJulia->passed

 

next thing is the ram.

840Mhz-> win starts up

1006Mhz too

1022->no boot (2.2v)

 

raised the NBvolts up to 1.55(pcProbe) no boot

 

played Crysis freeze after 10sec/figured it out was a GPU problem, with OC the GTX crysis freezes very strange this wasn´t on my intel board. maybe a bug in the game.

 

on 400x9 there are no problems with everest to do all tests

 

 

 

any suggest?

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OCCT is a hard and fast test but for a long term CPU test, you need to test with Prime95 for ~8 hours or more. Also, you need to test with memtest86+ v1.70 to ensure DRAM stability.

 

Have you done this?

 

Every change to the overclock should have a memtest and OCCT. Then if both pass, if you have system errors you need to Prime95 for long-term.

 

As well, you will find certain DRAM ratios do NOT work with these chipsets. That is why you are erroring and why 3.6 is probably a good stopping point. It allows for a very fast DRAM throughput and CPU speed.

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OCCT is a hard and fast test but for a long term CPU test, you need to test with Prime95 for ~8 hours or more. Also, you need to test with memtest86+ v1.70 to ensure DRAM stability.

 

Have you done this?

 

Every change to the overclock should have a memtest and OCCT. Then if both pass, if you have system errors you need to Prime95 for long-term.

 

As well, you will find certain DRAM ratios do NOT work with these chipsets. That is why you are erroring and why 3.6 is probably a good stopping point. It allows for a very fast DRAM throughput and CPU speed.

 

so I got back to 410x9 for longer tests.

 

3 hours prime stable(stopped the test no faults), no more reboots in everest

no errors with memtest after 5 passes

 

vcore:1.43v

SB:1.10

SB2:1.54

FSBT:1.49

NB:1.63

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Are you running any cooling on your Northbridge? Do you need ~1.6v for stability? What are your bridge temps (full load) with 1.6v?

 

 

Now I use the same settings from 400-420x9, no reboot in everest (FPU Julia)

Tried with lower NB (1.5) @ 1053Mhz no boot.

 

NB temp is @ 55-65° watercooled

MB temp 45°

 

with 1.63v on NB I can boot to windows. Now I´m running @ 840Mhz 1:1 with this score:read/7113-write/7662-copy/7775-lat/76,1

SuperPI-1M/13,734

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Can you set the DRAM to ~1000Mhz with 5-4-4-12 and 2.2v?

 

tRFC = 30

Write to Precharge Delay (tWR)= 17

Write to Read Delay (tWTR) = 17

Act to Act Delay (tRRD) = 6

Read to Write Delay (tRD) = 8

Read to Precharge (tRTP) = 9

 

Test with Memtest first...

 

NB temp is @ 55-65° watercooled

MB temp 45°

 

The X38 is every bit as hot as the 680i . . . You do have fans inside the box? On the DRAM?

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good morning sir^^ what time you have in canada?

 

so I figured out with 420x9.

 

to much vcore ends up in a reboot (everest/Prime95) I retested and this are the new settings for it:

 

vcore:1.43

NB: 1.60->1.59bios

FSBT: 1.49->1.44bios

SB: 1.10->1.075bios

SB2: 1.54->1.50

 

Prime stable for 20min of testing

temps are CPU (58-62°) now under full load/NB 57° / SB 49°

 

on my (old) intelboard I burnt my fingers on the bridge^^ on air

 

will test the ram @ 1000Mhz

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Can you set the DRAM to ~1000Mhz with 5-4-4-12 and 2.2v?

 

tRFC = 30

Write to Precharge Delay (tWR)= 17

Write to Read Delay (tWTR) = 17

Act to Act Delay (tRRD) = 6

Read to Write Delay (tRD) = 8

Read to Precharge (tRTP) = 9

 

Test with Memtest first...

 

 

 

The X38 is every bit as hot as the 680i . . . You do have fans inside the box? On the DRAM?

 

watercooling for my rams coming this week or next week(hopefully)

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1:30am. Good morning. :)

 

Your temps are fine. Your SuperPi at 840Mhz (DRAM) is faster than my 3.6Ghz with 1200Mhz. I make 14.047s.

 

watercooling for my rams coming this week or next week(hopefully)

 

Good, then you can leave pushing the voltage until then

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