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E8400 speed

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June 26, 2010 12:07:28 PM

Hi

I just used CPU-z to check my cpu speed to make sure everything is working fine, I found that my speed is set to 1995mhz.

I went to the Bios and turned off C1e (called enhanced halt in my bios) and it is still the same. Even when playing a game or using a cpu load test it wont go over 19995mhz or 6 multiplier.

Couldn't find anything about speedstep, or manually adjusting the multiplier in the bios.

System info:

Windows 7 pro ( Power management set to "High performance")
Mother bord : Mercury PIG31m
Cpu: E8400

Any help would be appreciated

PS RealTMP also says that it's running at 1995mhz @ 6 multi

More about : e8400 speed

a c 113 à CPUs
June 26, 2010 12:54:09 PM

Is the E8400 officially supported on that motherboard?
a b à CPUs
June 26, 2010 1:22:54 PM

A 945 chipset can only do 1066/800/533 FSB IIRC and the E8400 needs a 1333 FSB.
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June 26, 2010 1:34:14 PM

CPU-z says my rated fsb is 1333.

http://www.mercury-pc.com/product-spec.php?productid=77...

The site says it supports 1333/1066 fsb

btw I used Realtmp x5 bench and got a score of 661 :/ , way under the abse scoree of 1000 for 3000 mhz

Oh and Win 7 cpu speed thing says " e8400 @ 3ghz, 2.98 Ghz
a b à CPUs
June 26, 2010 1:55:28 PM

ags161 said:
CPU-z says my rated fsb is 1333.

http://www.mercury-pc.com/product-spec.php?productid=77...

The site says it supports 1333/1066 fsb

btw I used Realtmp x5 bench and got a score of 661 :/ , way under the abse scoree of 1000 for 3000 mhz

That's not what I found when I looked for your mobo :??:  , BIOS update perhaps?
a c 113 à CPUs
June 26, 2010 2:02:43 PM

That doesn't prove that the E8400 is properly supported. I get a score of 1000 on mine, but my motherboard officially supports it and I didn't have to disable any power saving features in the BIOS.
June 26, 2010 2:15:38 PM

Mousemonkey said:
That's not what I found when I looked for your mobo :??:  , BIOS update perhaps?


I could not find any BIOS update, and the information on the site was like that before I bought the CPU :p .

@ GhislainG: I can't find any list of supported CPU, but I can't see why it should not work properly on it : <

a c 113 à CPUs
June 26, 2010 2:21:18 PM

A significant number of motherboards based on the same chipset don't support it; therefore I doubt that a Mercury motherboard does.
June 26, 2010 2:38:54 PM

Damn :/  so the 945z chipset does not support E8400 ?-.- Could you recommended a motherobrd that does .

Oh and I went to the BIOS and changed my Bus speed to 337 from 333 and now the speed is 2100 mhz, dunno if that means anything. I also disabled something called " speed spectrum" or something.
June 26, 2010 3:04:39 PM

Ok I increased my bus speed to 345 and now windwos is reporting my cpu speed as 3.10 Ghz. CPU-Z says it's 2200mhz and my rated FBS is 1370 everything els is the same.

is it possible that CPU-z just doesn't like my mobo : P?
a b à CPUs
June 26, 2010 3:10:54 PM

As you seem to know your way around the Mercury website can you provide a link to the pdf of the manual for your motherboard?
June 26, 2010 3:21:54 PM

Mousemonkey said:
As you seem to know your way around the Mercury website can you provide a link to the pdf of the manual for your motherboard?


Was searching for the manual before starting the topic, could not find it : /.

Since the multiplier doesn't seem to go over 6, if I set the bus speed to 500 to get 3000mhz. Will that mean I am OC'ing the
CPU and it will be bad for the other components?
a b à CPUs
June 26, 2010 3:30:57 PM

ags161 said:
Was searching for the manual before starting the topic, could not find it : /.

Since the multiplier doesn't seem to go over 6, if I set the bus speed to 500 to get 3000mhz. Will that mean I am OC'ing the
CPU and it will be bad for the other components?

Only the RAM if you can't unlink the divider.
a c 113 à CPUs
June 26, 2010 3:37:24 PM

Quote:
I also disabled something called " speed spectrum" or something.
This has nothing to do with the CPU.
Quote:
Since the multiplier doesn't seem to go over 6, if I set the bus speed to 500 to get 3000mhz. Will that mean I am OC'ing the
CPU and it will be bad for the other components?
Good luck getting the FSB that high on such an inexpensive motherboard. You'll have to make sure that the PCI and PCIe bus speed are within specs and set the memory speed correctly; otherwise your system just won't POST.

Getting a better motherboard would be best, but you didn't say what your requirements are. Since you bought a G31 based motherboard, does that mean that you're not a gamer and that you use the on-board GPU? What site would you buy the motherboard from?
June 26, 2010 3:48:45 PM

GhislainG said:
Quote:
I also disabled something called " speed spectrum" or something.
This has nothing to do with the CPU.
Quote:
Since the multiplier doesn't seem to go over 6, if I set the bus speed to 500 to get 3000mhz. Will that mean I am OC'ing the
CPU and it will be bad for the other components?
Good luck getting the FSB that high on such an inexpensive motherboard. You'll have to make sure that the PCI and PCIe bus speed are within specs and set the memory speed correctly; otherwise your system just won't POST.

Getting a better motherboard would be best, but you didn't say what your requirements are. Since you bought a G31 based motherboard, does that mean that you're not a gamer and that you use the on-board GPU? What site would you buy the motherboard from?


I just got this motherbord because my old one fired and needed a replacement fast. I do use my PC mostly for gaming, that is why I find the situation kind of crappy because I've been playing with -1000Mhz for almost a year : P.

I always use amazon since I am in Qatar and it accepts my credit cards unlike newegg which always has a problem.

My other parts are, nvidia GTX 275, 4gb ram , 750w PSU.
a c 113 à CPUs
June 26, 2010 3:55:13 PM

If you're a gamer and you use a discrete GPU, then I don't understand your motherboard selection. Will your case accept an ATX or only a mATX motherboard?
June 26, 2010 4:04:43 PM

Like I said I needed one in a hurry, and PC gaming parts have no market here so I could not wait for week + by ordering from the net.

Anyways I really don't know, but I don't there is much room for a larger mobo, it's tight squeeze as it is. Buying a new case is not an issue however.
a c 113 à CPUs
June 26, 2010 4:32:36 PM

Here are a few good motherboards with 4 memory slots that cost less than $100 on Amazon.com.

ATX - New ATX case required
GA-EP45-UD3L
GA-EP43-UD3L (If you can afford it, the GA-EP45-UD3L is a bit better)
Asus P5Q PRO Turbo
Asus P5Q SE PLUS

I didn't find any mATX motherboard that I'd buy for myself as I prefer P45 based motherboards. You can always check on Newegg and read the reviews (don't rely too much on them), then verify if it's available from Amazon.
June 26, 2010 5:27:14 PM

I'll read the reviews on those and order the best one, plus buy a new ATX case : ).

Kinda wish I never bothered with CPU-z in the first place lol :p , but I guess it's for the best

Thanks for all the help guys. really appreciate it.

EDIT: On second thought I think I am just going to upgrade to an i7 cpu and mobo. if a motherboard supports DDR 3 ram
will my ddr2 stick work? or would I have to buy new ram as well.
!