Strange CPU-Z results on new build

Hypersonix

Hypersonix

Hypersonix

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Joined
1 Dec 2007
Posts
275
Hello ,

After building my new rig I thought everything was fine until I ran CPU-Z .
Being a noob I could do with some help understanding why I have these results. These are the components I have :

EVGA GeForce 8800 GT 512MB Superclocked
OCZ 2GB (2x1GB) PC2-8500C5 1066MHz SLI-Ready Edition Dual Channel DDR2 (OCZ2N1066SR2GK)
Gigabyte GA-P35-DS3L Intel P35 (Socket 775) PCI-Express DDR2 Motherboard
Intel Core 2 Duo E6750 "LGA775 Conroe" 2.66GHz (1333FSB) - Retail
Arctic Silver 5 Thermal Compound (3.5g)
Asus DRW-1814BLT 18x DVD±RW SATA Dual Layer Lightscribe ReWriter
Western Digital Caviar SE16 400GB SATA-II 16MB Cache - OEM
Thermalright Ultra-120 Extreme CPU Cooler
Antec Sonata III case

I'm running XP Home SP2

CPU-Z is reporting that the multiplier is X 6 ( bios says it's X 8 )
core speed is 2000.1Mhz ( system properties says 2.67Ghz )
and says my memory DRAM Frequency is 533.4Mhz
FSB-DRAM 5:8
CAS# Latency 5.0 clocks
RAS# to CAS# delay 7 clocks
RAS# to Precharge 7 clocks
Cycle time 24 clocks
Command Rate 2T


In the SPD tab of CPU-Z is says my ram is PC2-5300 (333mhx)


I'm very confused with all this ! Should I format my H/D and start fresh ?
Any advice and help on this please ?

p.s. I would have posted the results pics from CPU-Z but couldn't work out how .
 
Ok , found the stepping setting , CPU-Z now reports 2.67Ghz with multi of X8 . Good .

Now , the memory page is reporting DRAM Freq of 533Mhz and ratio of 5to8 .
How do I set the ratio to 1to1 and adjust DRAM freq accordingly ?

I'm getting there slowly , but it is progress ! :-)
 
Your already at 1:1. 333Mhz is the correct speed, it matches the memory and the cpu's FSB. Higher speed memory is there for when you want to start overclocking.

Your Ram is good enough to take the cpu's FSB to 2132! (533 in bios), which would be running your E6750 at 4.26Ghz! However only the best motherboards and processors will run stable with the cpu bus at 533mhz.

If your wondering why 333 DDR is match for the cpu which is 333Quad pumped.... Its because the FSB is 64bit, and the dual channel DDR is 128bit, so its an overall "bandwidth" match. IE 333Mhz DDR = 666 datarate x 128 bits. CPU 333Mhz = Quad pumped 1332 x 64bits. Its the same thing.

PS, Unless its harming performance, why turn of speedstepping. The chip idles with reduced volts, and clockrates when not required, but as soon as you run an application which demands action it kicks in the higher multiplier.. This is 'almost' instant. Saves power with very little 'problems'. Even overclocked most C2Ds are stable with speedstep enabled, and with the vast majoriy of applications the chip will jump to full speed long before it affects performance.
 
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Your ram shows as 533MHz because its DDR Double Data Rate, so in affect its 1066MHz. You dont need 1:1 ratio with Core 2 Duo's as said above because the ram is already running fast enough for the CPU, PC2 6400 (800MHz) is fast enough for most overclocked core 2 duo's.

Regarding speedstep I would enable it, it saves on your electricity bill and it doesn't affect performance as the multi changes to 8 when required.
 
fobose said:
Regarding speedstep I would enable it, it saves on your electricity bill and it doesn't affect performance as the multi changes to 8 when required.
Click to expand...

Any ideas on how much every quarter speedstep saved on your electric bill?

And what exactly is C.I.A.2 in the bios for?
 
Thanks for all the answers guys, it seems that speedstep IS worth turning back on . As the name suggests, it lowers the power the cpu needs when it's not being asked to do so much .

Looks like everything is doing what it should so all good .
 
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