Overclock e2140

[wowempire]

Hi ! I have an e2140 1.6ghz and a biostar 945gc micro motherboard and i want to overclock the cpu to 2ghz. I also have 1gb ram ddr2 667. One of my problems are that the multiplicator moves from 6 to 8 when cpu work on 220 fsb. Some info : pci-e clock is fixed 100[i tried with 105 too, still nothing], cpu voltage is +0.050, ddr freq 667 [ there i also tried with 400 mhz ]. That's all i guess.
PS: I searched on google before posting there and i saw a lot of ppl overclocked the e2140 to 2.4ghz or 3ghz EASY and without voltage changes. ANY IDEA ? Also tell me if i cant overclock it on that motherboard so i wont waste my time and yours.. ALSO cpu is running a 50 degrees idle .

 

[Termie]

The multiplier on your CPU is 8x, I believe, so I'm not sure what you mean it moves from 6 to 8 when you set a 200MHz FSB. It should always be 8. What CPU speed do you hit at 220MHz FSB? It should be 1.76MHz. Just set it at 250MHz and you should be fine - that will be 2GHz. You'll need to drop your memory down to DDR2-500, though. Unlikely you can hit 750 and you obviously won't hit 1000MHz.

On that very inexpensive motherboard, I doubt you'll get much more than 333MHz FSB, which would give you a 2.67MHz processor speed. When you say you read about people hitting "3ghz EASY," I'm sure it was on a very different motherboard, and it was extremely unlikely that the speed was achieved without additional voltage.

 

[VirtualLarry]

I overclocked a pair of E2140 (1.6Ghz) 100% (3.2Ghz), on a pair of P35-DS3R v1.0 boards.

One of the E2140 CPUs just wasn't 100% stable at 400FSB, so had to lower that one to 2.8 for 24/7 DC usage.

Still have both of those boards, still running one of them 24/7 at 400FSB, with a Q9300 (2.5Ghz to 3.0Ghz).

I did have to boost the voltage quite a bit on the E2140 CPUs. They can take up to 1.4v, maybe a bit higher since they are 65nm.

 

[wowempire]

@virtuallarry i heard a lot of ppl doing that, saying the same time. All i want is to get to 2 or 2.2 ghz stable. WHY the multiplier moving chaotic from 8 to 6 ? WHY the pc wont boot with 230 or more fsb? U talk about 333 fsb whichs seems HUGE for me.. i dont know how i will get to that value since i cant go over 230 fsb .. and pc boot only with +0.050V at 230 fsb. Any IDEA ? And "+0.050V" is a high voltage dump ? it's dangerous to go rather ?

 

[DigDog]

< exactly what VL said.
throw a bucketload of volts at it, and shoot for 400.
if you board refuses to, you can get a P35 board from eBay for something liek $5.

 

[Magic Carpet]

@virtuallarry i heard a lot of ppl doing that, saying the same time. All i want is to get to 2 or 2.2 ghz stable. WHY the multiplier moving chaotic from 8 to 6 ? WHY the pc wont boot with 230 or more fsb? U talk about 333 fsb whichs seems HUGE for me.. i dont know how i will get to that value since i cant go over 230 fsb .. and pc boot only with +0.050V at 230 fsb. Any IDEA ? And "+0.050V" is a high voltage dump ? it's dangerous to go rather ?

I have a similar board (945G Micro 775SE) and E2160 runs rock solid at 327 Mhz FSB with voltage on Auto. Just play with the settings and different bios'es. Also, you could try a BSEL mod. Google it.

EDIT: Even at 3 Ghz, it's a slow processor by todays standards. Lack of newer instructions and advanced power saving techniques make it a "niche" toy to play with. And it does run rather hot with a stock HSF, once overclocked.

 

[wowempire]

300 fsb is max value in my bios. I tried with some values like 266/300 fsb and still dont boot, overall the multiplier still moving frequently from 8 to 6.

 

[sm625]

Dont worry about the 6 multiplier. That's the minimum. That's the multiplier the cpu will be at when idling, if you have speedstep enabled. When loaded, the multiplier will be at 8 if you set it to 8. You should be able to easily hit 300FSB. Dont be afraid to give it some voltage, assuming that board will let you. Either way, dont expect miracles. That chip is cache crippled so its not going to feel very fast under today's general usage loads. An E8600 @ 2.0GHz will feel faster than a E2140 @ 2.5GHz just due to architectural differences. (6MB of cache, penryn core enhancements, etc)

 

[KompuKare]

300 fsb is max value in my bios. I tried with some values like 266/300 fsb and still dont boot, overall the multiplier still moving frequently from 8 to 6.

But did you lock the ratios? I had an E1200 (1.6GHz - same 65nm process so basically the Celeron version of your E2140) running at 2.66GHz (333Mhz FSB) for years. In fact I suspect it would have been fine at 3.2GHz but I wanted to play it safe. That was in a more modern board though (G31M not 945) which supported 333MHz FSP. Your's is only listed as supporting 533 / 800 / 1066 MH (divide by 4 to get the FSP), but setting it to 266MHz should work fine. Looking at your mobo manual, Biostar call the options you want Performance Booster Zone and there isn't much there...

You want to increase CPU Clock but leave PCIE and PCI clock at defaults. But you also want to go into 'Advanced Chipset Features' and set your RAM speed to the lowest setting first. Then once you have your CPU working you can see if you are able to increase RAM again.

 

[wowempire]

Guys, please, first tell me how far can i go, i dont risk to break something by raising up the voltage, tell me a "max safe value" for a e2140 and after tell me why the multiplier is changing frequently.. how that help me ? u said doesn't matter but when cpu is running at 1.2ghz beacuse multiplier is 6x, tell me how sound that ? The ram is at 400 mhz or 333 if im not wrong, pci-e clock fixed 100.

 

[rbk123]

Not sure if your MB supports OC'ing but assuming it does and you have a good HSF 3GB should be easy. Here is an ancient thread on OC'ing it:
http://forums.anandtech.com/showthread.php?t=83635&highlight=2140

 

[wowempire]

Ok, i understood.. that mb cant support overclocking.. i give up, ty 4 help anyway.. maybe i will buy another cpu, maybe a core duo e6850

 

[DigDog]

dont waste your money on a E6850; buy a second hand motherboard, or save the money to buy a new generation CPU.

even a haswell Celeron with a $30 motherboard will be a better but, if you really have to.

 

[sm625]

I just saw a refurb lenovo pentium G2030 machine on slickdeals for $150. That would be a great deal faster than anything on socket 775.

 

[Matt1970]

I would try a e7500. You can get them all day long on ebay for $15 or less. You would already have 2.8GHz at stock, 3M cache.