minor geek needs help!

cozmik

I upgraded the cpu on my dell e520 from a p4 to a core 2 duo e6600 and I was wondering if anyone could tell me by looking at these numbers if my motherboard is limiting the speed of my cpu?

Here are some results from EVEREST

Motherboard:
CPU Type DualCore Intel Core 2 Duo E6600, 2400 MHz (9 x 267)
Motherboard Name Dell Dimension E520
Motherboard Chipset Intel Broadwater G965
System Memory 2048 MB
BIOS Type Phoenix (05/24/07)

CPU Speed:
CPU Clock 1596.0 MHz (original: 2400 MHz)
CPU Multiplier 6.0x
CPU FSB 266.0 MHz (original: 266 MHz)



Motherboard Properties:
Motherboard ID <DMI>
Motherboard Name Dell Dimension E520

Front Side Bus Properties:
Bus Type Intel AGTL+
Bus Width 64-bit
Real Clock 267 MHz (QDR)
Effective Clock 1067 MHz
Bandwidth 8533 MB/s




[ North Bridge: Intel Broadwater G965 ]

North Bridge Properties:
North Bridge Intel Broadwater G965
Intel Platform Bridge Creek
Supported FSB Speeds FSB533, FSB800, FSB1066
Supported Memory Types DDR2-533 SDRAM, DDR2-667 SDRAM, DDR2-800 SDRAM


SPD Memory Modules:
DIMM1: Kingston KTC1G-UDIMM 1 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-4-4-12 @ 266 MHz) (3-3-3-9 @ 200 MHz)
DIMM3: Kingston KTC1G-UDIMM 1 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-4-4-12 @ 266 MHz) (3-3-3-9 @ 200 MHz)



Here are results from cpu-z aswell

General Information :
Real Frequency : 1596 MHz
Multiplier : 6x
Low/High Multiplier : 6x / 9x
Multiplier Locked : Yes
Marketing Frequency : 2394 MHz

Front Side Bus Information :
Bus Speed : 266 MHz
FSB Frequency : 1064 MHz (QDR)

Initial Frequencies :
Frequency : 2400 MHz
FSB Frequency : 266 MHz
Multiplier : 9x

Frequency Control :
Core #1 : 1595.90 MHz
Core #2 : 1595.94 MHz


I hope that some one can help me, thanks for your attention.

regards

cozmik

game4it70

hi,
there are people here that know much much more than me but here is what i think.
the multiplier goes up and down because the core due chips have like energy saving on them,hence when your not doing anything cpu intensive it clocks the multi down.
hope that makes some sense and help.

cozmik

game4it70 wrote:

hi,
there are people here that know much much more than me but here is what i think.
the multiplier goes up and down because the core due chips have like energy saving on them,hence when your not doing anything cpu intensive it clocks the multi down.
hope that makes some sense and help.

Thanks for the quick response, game4it70

I was thinking that too but when I checked the bios advanced speedstep is disabled, does the energy savings happen anyway regardless of speedstep?

I thought these fsb readings looked a bit strange Real Clock 267 MHz (QDR) Effective Clock 1067 MHz but I don't understand enough about it to know if this is normal for a core 2 e6600.

Toolbag

Looks like your multiplier is being decreased due to inactivity. The FSB is quad pumped, so 267x4 =1066 is its effective speed. I think once you stress the CPU it should kick back into the 9x multiplier.

cozmik

Toolbag wrote:

Looks like your multiplier is being decreased due to inactivity. The FSB is quad pumped, so 267x4 =1066 is its effective speed. I think once you stress the CPU it should kick back into the 9x multiplier.

cheers for the reply, Toolbag

I'm in work now but I will try the stress test idea later this evening.

I have some further info regarding memory this time

http://www.avsforum.com/avs-vb/printthread.php?t=710828&page=4&pp=30

P965 motherboard

The minimum selectable multiplier is 2 (= DDR2-533). With this multiplier the relation between the memory speed and the maximum theoretically possible FSB/CPU frequency is the following:
With DDR2-533 memory
FSB: 553MHz/2 = 266MHz
CPU:
266MHz x 7 = 1.86GHz for E6300
266MHz x 8 = 2.13GHz for E4200 & E6400
266MHz x 9 = 2.40GHz for E4300 & E6600
266MHz x 10 = 2.66GHz for E4400 & E6700

With DDR2-667 memory
FSB: 667MHz/2 = 333MHz
CPU:
333MHz x 7 = 2.33GHz for E6300
333MHz x 8 = 2.66GHz for E4200 & E6400
333MHz x 9 = 3.00GHz for E4300 & E6600
333MHz x 10 = 3.33GHz for E4400 & E6700

With DDR2-800 memory
FSB: 800MHz/2 = 400MHz
CPU:
400MHz x 7 = 2.80GHz for E6300
400MHz x 8 = 3.20GHz for E4200 & E6400
400MHz x 9 = 3.60GHz for E4300 & E6600
400MHz x 10 = 4.00GHz for E4400 & E6700

http://www.avsforum.com/avs-vb/printthread.php?t=710828&page=4&pp=30

As my mobo fsb is set at 266MHz would I be right in thinking that it's more likely to be the DD2-800 memory or inactivity than the mobo causing the cpu to run at 1596.0 MHz?

Thanks!

Toolbag

In your initial post the diagnostics say that the multiplier is at 6x. This is a feature that can be disabled, but i'm not sure how.

The link is stating the clock speeds for those cpus when the FSB and RAM are running at 1:1 ratio. It is possible to use ddr2800 with a 266 FSB by changing this ratio.

But since it's a dell, all bets could be off I guess depending on the type of motherboard they stuck in it.

Cassiel

Nope its grand, I have the same dell. download cpu-z and run it and then run an app, rip a cd or something, you'll see the multplier jump from 6 to 9 and see a corresponding increase in core speed. don't mind the crap about memory, your memory can and will run at a different frequency from the FSB, thats why Dell will let you configure a system with DDR2-667, if it couldn't run the memory at DDR2-800 it would default to DDR2-667.