HELP!!!

My System:

• Windows XP SP2
• Intel Core2 Duo E8400 @ 3ghz
• 2x1gb 1800mhz Dual Chan RAM
• Asus Maximus Extreme m/b
• Sapphire Radeon HD3870X2 CCC 8.3

I have manually set the ram to 1.96v but left everything else on auto in the bios, including CPU.

CPU-Z states:

• CPU is at 333mhz Bus Speed, 1333mhz FSB 9x Multiplier for 3ghz.
• RAM is at 667mhz (x2 Dual Chan for 1333mhz) Timings: 7-7-7-20-1T / SPD

My cpu score from 3dMark06 is 1618.

When i change the FSB to 400mhz and DRAM to 1600mhz. CPU Speed is 3.6ghz and RAM is 8-9-9-23/800mhz but the CPU Score is still only 1800 with 3dmark06.

Total 3dmark score on 1333mhz is:

Score:         9492
SM2.0:        4975
SM3.0:        4983
CPU score: 1618

Sisoft Memory Bandwidth says 7679mb/s but RUNid string is 2x512mb PC3-5300??

Results on 1600mhz is about the same.

Can someone help? I dont know why the CPU mark is soooo low.  It should be more than 2500 at least?

Many thanks.

Um your whole system is held back. Those shader scores seem to be low to me. For the CPU, turn off speedstep and c1e that way it runs at 3GHz all the time. Make sure your GPU is being seen as x16 cuz with that card & CPU you should be hitting 13K+.

you have not overclocked the proc! why? you can easily get it to 4GHz. on air and that in itself will boost ya.

Don't overclock until you solve the problem at hand first. It'll complicate things.

 
Dude at stock he should be getting like 3k for the CPU score and he is getting half of that. OC is not an option right now until we find out whats wrong.
 
To tell you the truth it seems like its the mobo. Do you have any other mobos or CPUs to test it with?

[quotemsg=1810597,2,296554] For the CPU, turn off speedstep and c1e that way it runs at 3GHz all the time.  
 
I had a question, my mobo is a Gigabyte P35-DS3L. How do i disable speedstep, I dont see that in my bios? Its probably listed as something else.  

It's not called c1e on Gigabyte boards. I don't remember the name exactly, but it's in the "Intelligent Tweaker" section. Each option gives you a description on the right of screen, look for one that says things like performance throttling on program startup, or something like that.

enhanced intel speedstep = EIST

I watched the AI Suite cpu speed and it went from 2ghz to 3ghz when under load, but the results are the same
 
I turned off speedstep and c1e but it made no difference.
 
I too was thinking it should hit 3k with just the cpu.. i thought maybe its the ram holding the cpu back but the mb/s is ok i think?
 
Thanks for the replies.. any other ideas?

Underclock the ram to rule it out as possible source for unstability while overclocking cpu.

Id go to the memory mfg website and check what the voltages are recommended to be set to.  Then reset defaults in the BIOS and set the standard settings to test it everything works correctly.
 
If that gets you back to ground zero then you can start tweaking things again.  Do you have the latest BIOS update to ensure compatability for your CPU if it has one?

Does XP see your CPU as dual core?

What's your power supply? maybe it's holding your PC back?

Everything is standard/SPD, im not overclocking the ram, its 1800mhz ram, i have it at 333fsb which is 1333mhz ram.
 
XP says core 2 duo cpu and shows 2 cpus
 
PSU is Tagan 750W
 
Thanks.

Your motherboard could be undervolting your ram at default settings.  My EVGA 780i motherboard was set by default at a lower voltage than my memory was supposed to be set.  I has to increase it manually to 2.0 after going to OCZs website and finding the correct voltage settings.
 
Just a suggestion if you havent check already.
 
Do you have the latest BIOS installed?

I have the latest 1004 bios and manually set the ocz ram to 1.96v at recommended.. thanks for the reply.
 
I am clueless as to what the problem is, but at least you all agree there is a problem.
I wish i knew how to pinpoint what hardware the problem lies with. I cant test the cpu without it using the ram and vice versa.
 
I guess my only choice is to buy more ram and another cpu to test with
 
Unless anyone has any more ideas ?

That's a rather extreme step, and ties up money. Look up reviews for different stores. Make sure to get one that had reliable rma policy. Some stores aren't very honest, and you may end up with an extra cpu.

Replied to this on my P35-DS3L guide. Please check there first .

@OP: Check your background programs some random program might be using resources. Kill everything that is unneeded (AV**, Instant messenger,etc) and re run 3DMark about 2 more times and give us the results for the 2nd run. Also try reinstalling all drivers.
 
**Make sure you disconnect the Ethernet cable just to be safe, plug it back in to view results,etc.

Ok.. removed one slot of ddr3 to force to single channel and sisoft reported 1x1gig instead of 2x512mb.. strange.
Also, the memory bandwidth of the single 1gb in single channel mode is the same as the bandwidth of dual channel.. why? - shouldnt dual chan ddr3 be double the bandwidth of single channel?
 
A friend has the same spec pc except has nvideo gfx and he gets 2800 cpu marks.. now im vexxed!!! why, how?
 
I have removed supremeFX sound card and disabled in bios. Disabled all non vital programs in xp but no change.
 
Maybe sisoft sandra lite is wrong? But 3dmark06 cpu test surely should be better than 0.5fps and 1500 score??