The temp is ok and there are nothing to worry about

how about this is it i have push it too far?



vcore=1.35v in bios
memory=1.645v ddr3
memory clock=1000mhz
VTT=1.25v
MCH=1.47v
other set on default.

the temps look OK. Keep cool..
Your RAM is 1000mhz in CPU-Z = 2000mhz? Nice RAMs.

no la
my memory 1600mhz
now work at 529x2=1058mhz

thx for reply

This post has been edited by amadzack: Feb 15 2011, 01:36 AM

I've been using my E6300 overclocked to 3.010 Ghz for 4 years now at 430x7 (5.5.5.15)
4 slots of ram (KVR 512MB rated DDR2 666mhz at 1.8v CL5 hynix chips) 4x512MB= 2 GB in total.
RAM need to overvolt to 2.1v and CPU 1.425v to stabilize the system.

Then I figured i need more RAM and I bought another piece of 2GB KVR (rated DDR2 800 at 1.8v CL6)
I replace 1 piece of 512MB with the 2GB. Everything is good. Computer works perfectly at 3.010 Ghz prime stable 430x7 (5.5.5.15) at 2.1 volt same as before.
Total RAM is 3.5 GB.

FYI my GPU has a 512MB hence works perfectly for my 32bit windows.

Later on I upgraded to 8 GB of KVR DDR2 800 ( bought 3 more 2GBs) . Same chipset (kingston chip) as my first 2GB piece. Same 1.8v 800Mhz CL6.

After I installed. system is able to boot with stock speed (default) 1.86Ghz(266x7) Ratio is 3:2 (auto mode) So RAM is indeed running at 800 Mhz at 6.6.6.18 (default)

But I am unable to boot it at 400x7=2.8Ghz (Ratio 1:1) no matter How high I overvolt the MCH FSB (+0.3 max) , CPU (1.5v still can go up some more but I know CPU is not to blame), RAM( 2.5v max)

I continue to test n retest: System able to boot and prime stable at 333x7Ratio 1:1 all ok
also prime stable 366x7= (all stock volt, ram timing auto) Ratio 4:5 RAM speed is 915Mhz (AUTO timing CPU-Z shows 6-8-8-18)

And I still cannot do 400x7 (1:1 ratio) despite overvolt. Why ah?


Further Details of my Rig
Mobo: Gigabyte P965-DS3 rev 3.3 Bios F14(newest)
Cooler: TRUE with 120mm Fan

Anyone experience similar problems?

Even 266x7 at 1:1 also cannot boot. Auto or 2.5 /3.0 ratio np can boot

---

Added on June 5, 2011, 8:40 amBoard is dead when I tried

to flash from f14 to f12. Sigh

This post has been edited by Kva: Jun 5 2011, 08:40 AM

Hey guys, this thing has been puzzling me for a while

Does your gigabtye mobo boot twice when it is overclocked? *means on a few sec then off again only then to boot window.

System
Pentium Dual core E5800 (3.2GHz)
Cooler Master Hyper Tx-3 with Artic silver 3.
4GB RAM DDR2 800
Gigabyte GA-EP41-UD3L motherboard (F5 BIOS)
Gigabyte Geforce 9800GT
1TB Samsung HDD, 80GB Seagate HDD
LG DVD-RW
510w Acbel ipower PSU

up ur vcore or mch core abit.

Wow! i also using Core 2 Quad Q8300, i also can OC to 3.5 even 3.6, but at 3.6GHz not so stable and scare it BOOM! haha! But when i prime at 3.5GHz full load Temperature only 60 something, i using a modified V8 with CM Excalibur it so Cold! can try it!

it has nothing to do with vcore it even boot twice when I OC only 100Mhz. I even up by to 1.3v for just 3.3 GHz. it even pass prime95 <--well obvious.... for 3.3 lol

E5800 is known to work a lot higher without problems. The real problem is as long as I am overclock even by little I get to boot twice b4 I enter into window.

Can someone that have better knowledge answer me this please?

Ram??
That might be ram issue

well, ur cases is different than mine and hilmiangah although the situation is exactly the same. mine fixed after increasing MCH core while hilmiangah prob fixed while increasing Vcore. (yours are different since any oc attempt resulting double post)

try manually adjust ur ram setting~

Anyone have try OC your Q8300 to 500fsb x 7.5 = 3.75GHz? I scare to add core voltage over 1.35v i only can go to 3.6GHz with MSI Mobo P45 chips.

Hi Sifus,

I'm new to OCing and I want to ask how to set RAM ratio to CPU ? Like 2:1 etc Which part of my BIOS ? BTW I'm using low end asus mobo with 6500.

how do u all play with clock skew

can refer to the mainboard manual.
find something like dram ratio.
clock skew?

OK then which ratio is best ? 1:1 ?

i think depends on what clock you want.

Huh ? Got a guide mou ? I very confuse le...

use this formula:
dram clock = base clock x dram ratio

example:
base clock = 200mhz
dram ratio = 1:2

dram clock = 200 x 2/1 = 400mhz

q8200 519x7 at 1.35v stable
why not??
but p45 chips over 500 fsb need a ton of voltage about 1.35v-1.4+v to make it solid stable
so you will need proper cooling for it..

This post has been edited by amadzack: Jul 14 2011, 06:08 AM