wa lao... so far away...

go OC...

E6300 is an exceptionally good oc-er...

quite a lot of ppl got 3GHz from it...

yeah...

E6300, E6600 and Q6600 were the most popular ones back then... cuz their multiplier are very high...

dackson, go get a better mobo, do some OC... ur E6300 still can use for very long...

ok, for Core 2, the clock speed u see is derived from the base FSB X Multiplier...

and thus, to get base FSB, we need to divide the rated FSB (the 1066MHz, 1333MHz we always see) by 4 (since the FSB is quad-pumped, meaning 4 pieces of data are transmitted in 1 clock cycle)...

for E6300, the rated FSB is 1066MHz, thus the base FSB is 266MHz...

a E6300 runs at 1.86GHz, so the multiplier is x7...

how the multiplier is determined??? it's by the quality of the CPU... the better the quality, the higher the multiplier...

Dackson... if u compare a E6600 (2.4GHz, 1066MHz FSB) with a E6550 (2.33GHz, 1333MHz FSB), the E6600 has higher multiplier (x9 vs x7)

in another word, the C2D with 1066MHz FSB are easier to attain higher clock due to the multiplier effect...

266MHz x11 = 2926MHz...

honestly speaking, if u ve RAM @ 667MHz, 3.33GHz (333MHz FSB) is not a difficulty thing...

man i love the multiplier...

my E6550 only x7...

if u ve good heatsink and 800MHz RAM, can try challenge 4GHz...

well, honestly speaking, i prefer Athlon II x4...

iirc it's also 65W TDP like the Phenom 9150e, and at higher clock as well... with the improved architecture, the lack of L3 cache would not be a big thing for u, especially when u wouldn't be using it for games...

moreover, 45nm means cooler as well... great for HTPC...

and with Socket AM3, it's going to be less hassle in the future... u ve the follow options open for u:
1) use a cheap Socket AM2+ mobo and DDR2 RAM now... in future when DDR3 is cheap, change the mobo and RAM, use the same CPU
2) also use AM2+ mobo and DDR2 now, when AM3+ mobo come out (by then stuff like USB3.0 and SATA3 would come out also), u can also take advantage of that since it's compatible with AM3 CPU...

with Phenom I, u re stuck with AM2+ mobo and DDR2 forever...

Rated FSB divide by 4...

it's always 4... no other number...

definetely... the big multiplier is the main reason...

moreover E7500 is 45nm while E6600 is still 65nm... u'll ve better result with E7500...

but heck... having a Core 2 running at 3GHz was blazing fast back then... and till now then ve one running 3GHz default cheap enough for mainstream users...

for u, wat i suggest is u try 333MHz first to match ur RAM speed... if succeed with good temp, then u try to push further...

well, AM3 (938 pins) has 1 less pin then AM2+ (939 pins) and 2 less pins then AM2 (940 Pins), so logically speaking a AM3 CPU can be used on a AM2 mobo...

but since ur mobo is a nForce5, i doubt it can support AM3 CPU... u can try ur luck and check if there's a BIOS update to support it, but dun bank too much on that... since from wat i know only chipsets that support AM2+ can support AM3 as well, and some older AM2+ mobo can't do so...

ah well, that's cheap for a quaddie, but Athlon II makes it much more flexible and cheaper should u want to upgrade in the future...

more fun with Athlon II x3 since u can probably unlock it to a quaddie...

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Added on November 5, 2009, 9:33 pm for both...

This post has been edited by astria: Nov 5 2009, 09:33 PM

1066 divide by 4 would get u 266...

with that we come to the problem of FSB:RAM ratio... that shows the ratio between the FSB clock and RAM clock... these are real clock (or base clock as i ve said earlier, the proper term should be "real" instead) we re talking abt here...

for any Intel CPU still with FSB (ie pre Nehalem CPU), the optimal ratio is 1:1...

first of all we need to find the real clock... u already know how to find the real clock of FSB... how abt RAM???

the RAM that we re using now are Double Data Rate (DDR) SDRAM... DDR means that 2 pieces of data is transmitted in 1 clock cycle... so for DDR2 667MHz, the real clock is 667/2=333MHz...

so for fab's system, E7500 (1066MHz FSB) with DDR2 667MHz... the ratio is 266:333 = 2:3... and thus the FSB is the bottleneck here!!! since the FSB cannot send data as fast as the RAM can receive and vice versa...

thus to eliminate this bottleneck, and thus achieving a 1:1 ratio, we ve 2 options: a) drop the RAM to run at 533MHz instead, or b) raise the FSB to 333MHz instead...

so that's the reason y i suggested oc to 333MHz... moreover, CPU is usually easier to OC than RAM, especially when u re using ValueRAM...

for comparison, my rig at home, which is E6550 (1333MHz FSB) and DDR2 800MHz is currently running @ 429MHz (real clock) for both the RAM and CPU... so my real FSB has jumped almost 100MHz, and real RAM clock jumped 29MHz from default setting... gonna try 440MHz when i go back...

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Added on November 5, 2009, 9:55 pmwell , ur choice...

happy assembling...

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Added on November 5, 2009, 9:57 pmoh yes, and for beginners, 1:1 ratio is wat u should be aiming for first...

if u get a stable system while maintaining at nice temperature, then u proceed to go higher...

This post has been edited by astria: Nov 5 2009, 09:57 PM

and Fan, regarding multiplier, i forgot to mention abt "unlocked multipler"...

some CPU has their multiplier limit unlocked... for normal ones, u can only adjust the multipler to go lower in the BIOS... but for CPU with multiplier unlocked, u can adjust the number to any number u like (meaning it can go up as well)...

Intel call such CPU Extreme Edition, and comes in the form of the most expensive CPU in the product line... think Core i7 975 Extreme, 965 Extreme, Core 2 Extreme QX9750, QX9650, QX6800, QX6700, X6800, etc...

AMD call such CPU Black Edition, but unlike Intel, it comes in the form of both the most expensive and normal priced CPU... eg are Phenom II x4 965BE, 955BE, Phenom II x3 720BE (965BE replaces 955BE, and both exist together with 720BE), Phenom x4 9950BE, 9850BE, Athlon x2 5000+BE (same thing, 9950BE replaced 9850BE, and both exist together with 5000+)...

u ve more fun playing with such CPU, as instead of adjusting the FSB (Intel) or the HT (AMD), which can hit the ceiling pretty fast, u adjust the multiplier instead... i ve played with a Phenom II X3 720BE before... the default clock is 200x14=2800MHz... my max record was 3800MHz or x19... the best thing is, i dun need to pay a hefty price for such a CPU, plus the added bonus of unlocking into a quaddie...

also almost bought a Athlon x2 5000+BE when i got the 5200+... but heck, they dun come with heatsinks at all, and back then my budget dun allow for a third party heatsink... so didn't go with it afterall... a bit regret though...

This post has been edited by astria: Nov 5 2009, 10:15 PM

that would be the best case scenario...

at the minimal, u eliminated 1 of the main bottleneck in a Core 2 system...

after that u can try higher if u feel adventurous enuf...

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Added on November 5, 2009, 10:11 pmfor RAM voltage, i suggest no more than 1.9V for DDR2 (default is 1.8V), especially for Value RAM... any more can fry the RAM modules...

u can raise the FSB in the BIOS... but Intel mobo is never oc friendly... (Skulltrail is the exception though... )

yes, DDR2 533MHz = 266MHz real... but in fab's case, he's already using DDR2 667MHz... no pt lowering the RAM speed to match the CPU FSB rit (266MHz real FSB)??? That would mean he bought the faster RAM but mever utilize the speed... doesn't make sense economically...

This post has been edited by astria: Nov 5 2009, 10:11 PM

correct, but usually we read it the other way...

i oc the FSB from 266MHz to 333MHz, which matches my RAM @ 667MHz to obtain a 1:1 ratio, and the resultant clock speed is 3.33GHz since i have a multiplier of x10...

as i mentioned in the multiplier unlocked post, u can't raise the multiplier higher in most PCU, unless u re using an EE (Intel) or BE (AMD) CPU...

for me, the main aim of oc-ing is to eliminate the bottleneck caused by the FSB... the higher clock is sort of like added bonus... after that any higher is really oc-ing...

i still remember the first thing after installing OS on the E6550 rig is to raise the FSB from 333MHz to 400MHz to match the RAM... no trail and error, juz straight away bump up to 400MHz...

yup...

always keep to 1:1, i dun see the pt if the FSB is faster than RAM or vice versa...

srry guys, no qn to day... exam tmr morning...

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Added on November 6, 2009, 10:58 amnormal chat still ok...

This post has been edited by astria: Nov 6 2009, 10:58 AM

MGMT110 - Introduction to Management...

which i juz found out this morning it can replace MGMT 208 - Management for Professional A*, which is a core subject for my Software Engineering degree...

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Added on November 6, 2009, 11:05 amsimply speaking, learn how to be a manager...

This post has been edited by astria: Nov 6 2009, 11:05 AM

nope...

this subject is from the Faculty of Commerce... not Infomatics...

at first i plan to take it as an elective only, with the option of double major in the future...

tmr afternoon would be slightly freer...

next 1 coming up is next Tuesday...