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Guidance Please....E6850 running at 800 mhz

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October 8, 2007 12:19:03 PM

I have an E6850 in an Intel DG33FB with 2 X 1GB DDR6400, and this is what I'm getting from CPU-Z at idle....
Processors Information
------------------------------------------------------------------------------------

Processor 1 (ID = 0)
Number of cores 2
Number of threads 2 (max 2)
Name Intel Core 2 Duo E6850
Codename Conroe
Specification Intel(R) Core(TM)2 Duo CPU E6850 @ 3.00GHz
Package Socket 775 LGA (platform ID = 0h)
CPUID 6.F.B
Extended CPUID 6.F
Core Stepping G0
Technology 65 nm
Core Speed 800.1 MHz (6.0 x 133.4 MHz)
Rated Bus speed 533.4 MHz
Stock frequency 3000 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T
L1 Data cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 4096 KBytes, 16-way set associative, 64-byte line size
FID/VID Control yes
FID range 6.0x - 9.0x
max VID 1.175 V
Features XD, VT

When I put a load to it, it ramps itself all the way up to 1200 mhz.

If the CPU or board is damaged, how can I tell which one?

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October 8, 2007 12:37:50 PM

To check which is which, the best way is to swap the CPU with another of the same. If the new one shows identical results, you know it's a Mobo problem.


But before you go through the hassle - Often, boards need a BIOS update before they properly recognize processors which are newer than they are. So download the latest BIOS from your Mobo's maker and follow their directions to install it. If you have a Floppy Drive available, that's usually the safest way. Even if you disconnect the old dinosaur after you're done. Some Mobo makers have software that lets you do that from a Flash drive (Gigabyte, for example). Update the BIOS from the Operating System only as a last resort.
October 8, 2007 6:00:20 PM

I've tried multiple times to update bios. Getting a cmos checksum error and the bois version does not change. Also it takes 20-30 seconds to reach the intel splash screen to key F2 to enter the bios. Seems more and more like the board to me. Thoughts?
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October 8, 2007 6:48:01 PM

"Core Speed 800.1 MHz (6.0 x 133.4 MHz)"

Here is your issue. Set your CPU Multiplyer to 9.
Set your memory to 333.
9 times 333= 3ghz
October 8, 2007 6:49:13 PM

If you're using Vista, it lowers your multiplier when you're idle. It does that with my Opteron too. Try maxing your CPU while in CPU-Z.

Oh, and Core 2s have SpeedStep, which I think works even in XP. Its the same thing that Vista does.
October 8, 2007 7:11:05 PM

I'm running XP pro. I don't have an option to change the mutiplier in my bios. Searched for a command to unlock 'hidden' settings, to no avail.
October 8, 2007 7:16:00 PM

DG33FB? Isn't that from Shuttle?

I think I worked with that before, and there was indeed an option to switch off the EIST, as well as changing the multiplier and Frequency. I overclocked an E6420 to 2.5Ghz with that board.
October 8, 2007 7:23:52 PM

The DG33FB is from Intel. It seems this is part of the problem.
October 8, 2007 7:29:11 PM

Alan65774 said:
I'm running XP pro. I don't have an option to change the mutiplier in my bios. Searched for a command to unlock 'hidden' settings, to no avail.

Try maxing it out while CPU-Z is running. Maybe you have SpeedStep enabled, which is just a power saving feature of all Core 2s.
October 8, 2007 7:33:16 PM

Well... your bus speed is supposed to be higher. 133 vs 333 is a big difference especially when you take into account the multiplier. Intel boards *shouldn't* be causing problems...

-mcg
October 9, 2007 8:26:50 AM

check your stapping in bios
October 9, 2007 11:43:39 AM

Thanks for all the input. I didnt have another chip I could test in the board, so I swapped out the board last night and the processor runs fine now.
!