Hi i built the following computer and i have a problm.

Mobo: Gigabyte P35C DS3R
CPU: 3.0g Intel E6850 Core 2 Duo
GPU: BFG Nvidea 512 8600 Thermointelligence
PSU: Hiper 730Watt SLI
Memory: 2gig Crucial 240-pin unbuff DDR2 PC2-8500 (dual channel interleaved)
Maxtor 7200rpm 150gig (C:/)
Maxtor 7200rpm 250gig (D:/)

The problem is that when i turn the computer on, graphics card fan and the CPU fan run at what sound like full speed. but once windows has fully loaded they slow down dramatically, i went into my bios and disabled smart fan control but this didnt solve the problem, i have downloaded and installed the software gigabyte provide for controlling fans and OCing, this shows the fan speeds, what i noticed is that when i put on my case fans (On the side door) with a swith the CPU fan looses power and slows down. not sure what to do now, the PSU is brand new i just bought it so i doubt if it is that.

any ideas on how to get the fans to run at full speed or even slihtly faster, by the way the reason is this an issue is because the monitoring software keeps telling me that my fan speeds are too slow.

Thanks,

I'm curious as to why you didn't post your proposed specs before you bought anything? Not that your specs are bad, but you definitely could have done better & probably for a lot less money.

A few comments/questions about your configuration...

- the E6750 would have been a better choice. It's about $100 cheaper than the E6850 & the minor difference in clock speed could have easily been made up for by overclocking.

- 8600GT OC w/Thermointelligence? It's nothing but an overpriced mid-range card. And the reviews I've read on Thermointelligence say that it's mostly hype & doesn't live up to it's marketing. For about the same money, you could have gotten an 8800GTS which is a significantly better card.

http://www23.tomshardware.com/graph...

- PC2-8500? Unless you plan to overclock your CPU (& overclock it a LOT), it was unnecessary. The E6850 runs at 333MHz, your RAM runs at 533MHz. You'd have to overclock the crap out of it to make the most of the RAM. Make sure to run the frequency ratio at 1:1...in other words, underclock your RAM to 333MHz (DR667) to match the CPU. And if you do overclock, do it thru the BIOS, not with the Gigabyte software.

- You didn't partition your HDDs? Why not?

- Side panel case fans are generally not recommended. Ideally, the air should flow from front to back. Side fans are disruptive to that airflow.

- There are better PSUs than the Hiper...cheaper too.

As for your question about the fans, you're gonna have to read the manual(s) for your board, video card & PSU to see if there are any settings that need to be changed.

Jam, i did post my specs up before expecting some advice, and i asked you for help which you did provide but i think you just got annoyed afterwards and didnt respond anymore, i sent you a PM and you didnt reply. so i just had to do my best, which now looking at what you've said isnt brillient at all.

Just out of curiousity what wrong with the Hiper PSU??

im thinking of installing Vista Ultimate on my system, your thoughts?

Why should i partition my harddrives??

As for the fan problems, i have resolved this issue by disabling the features in bios.

The fan on the GPU however runs faster or slower depending on the load put on it.

I honestly thought this CPU was excellent 333 is kinda slow isnt it? my ram i was going to PC2-600 800mhz but opted for this one instead.

i dnt really use side fans, i just hooked them up for looks really, hardly ever switch them on.

Ok so, what shall i do then Jam help me please, my old pc wasnt quick enough and always used to hang, this one i spend loads of money on and isnt that great, so what now?
shall i return the GPU and get naother one?
the psu i wont be able to return so will have to stick with that, the ram again i can not return.

Thanks,

This is my psu, this page gives detailed spec of its power output, please advise

http://www.xcase.co.uk/p/377163/hip...

Thanks,

"what wrong with the Hiper PSU??"

I didn't say there was anything necessarily wrong with it, but you could have done better & probably for less money. The Hiper has a small 80mm cooling fan in the rear of the unit rather than a 120mm fan in the underside...that generally means it will be louder & not cool as well. And although it has four +12v rails, there's only 16A per rail.

Here's an example of a better (& cheaper) PSU:

http://www.newegg.com/Product/Produ...

"im thinking of installing Vista Ultimate on my system, your thoughts?"

Personal choice. I'm not a fan of Vista & have no intentions to run it until I absolutely have to.

"Why should i partition my harddrives??"

Maintenance is the main consideration.

"I honestly thought this CPU was excellent 333 is kinda slow isnt it?"

Slow? 333MHz is currently as fast as it gets without overclocking. Don't get confused by the numbers. Intel calls it 1333MHz FSB, but it actually runs at 333MHz. And I explained above why the E6750 would have been the better choice.

"my ram i was going to PC2-600 800mhz but opted for this one instead"

PC2-6400 (DDR2-800) would have been fine. It runs at 400MHz by default, but should be clocked down to 333MHz to match your CPU. It would offer a fair amount of overclocking headroom. Just so you know, there's nothing to be gained by running the RAM at a hgher frequency than the CPU. Tests show that it can actually hurt performance. On an Intel system, the CPU & RAM should ALWAYS be run at the same frequency, aka 1:1 ratio...that will provide optimal performance. The PC2-8500 (which I'm guessing cost a fair amount more than the PC2-6400) is overkill, unless you plan on cranking up your CPU freq from 333MHz to 533MHz??

"shall i return the GPU and get naother one?"

That's up to you. Like I said, the 8600GT is a mid-level card. It sells for about $100 US for the standard model w/256MB GDDR3. I'm sure you paid a premium for 512MB, OC (overclocked) & "Thermointelligence". The 8800GTS sells for about $275 US, but it's a top end performer. If you paid close to that much for your "souped up" 8600GT, you made a bad choice.

mate you know your stuff ill give you that, so how do i underclock my ram then? please i need step by step instructions coz i serioulsy dnt know how to do it and NEVER have done it before.

i have seen this GPU and am thinking of getting it, what do yuou think?

http://www.novatech.co.uk/novatech/...

"how do i underclock my ram then?"

Have a look at the following BIOS screenshot. See where it has "System Memory Multiplier (SPD)"? I'm guessing your's is set to AUTO? If so, directly beneath it will say "Memory Frequency(MHz) 1066 1066".

What you need to do is change from AUTO to 2.0, save your settings, reboot, then go right back into the BIOS again. The "Memory Frequency(MHz)" *should* now have changed to 667 667. That is what you want. Keep it on that setting & the ratio will remain at 1:1.

http://www.xbitlabs.com/misc/pictur...

ok i have changed it to 2.0 but the freq has changed to 800 667 and the comp seems to be slowr than it was when i had it on auto?

what above the other settings on this screen, should i copy what this picture shows?

No, don't copy the other settings.

Do you have CPU-Z? if not, get it...if so, run it. Then go to the Memory tab, look under Timings & see what is listed for FSB:DRAM. It should be 1:1. That is what you want.

http://www.cpuid.com/cpuz.php

BTW, before you changed from AUTO to 2.0, what was listed for the Memory Frequency? was it "1066 1066" or "800 1066"...just curious

before i changed it, it was 1066 1066.
CPU-Z says the following

Frequency: 333.3
FSB:DRAM: 1:1
CAS# Latency (tCL): 4.0 clocks
RAS# to CAS# delay (tRCD): 5 clocks
RAS# precharge (tRP): 5 clocks
Cycle Time (tRAS): 15 clocks
Command Rate: 2T

so it is a 1:1 ratio. cool thanks.

hey i have windows xp pro (32bit) apparently not so good for core 2 duo cpu is this true? ive been advised to upgrade to Vista by a friend.

There's no problem running XP Pro (32) with a Core 2 Duo. But if you want Vista, I suggest you keep XP, partition your primary HDD & install Vista on the 2nd partition, creating an XP/Vista dual boot configuration.

ok i just read some reviews on Vista vs XP and by the looks of it, there isnt any performance to be gained by installing Vista, is was going to get XP pro 64 bit but again not significant performace will be gained from that. to be honest i dnt like vista myself very much so shall be sticking to xp.

all i have to do now is test my new computer with a game, im going to buy Medal of Honour Airbourne to test it out.

im quite surprised tho jam, coz having all these high performace parts i assumed my system would "scream like banshee" as you put it once before. but when i try to open Ms word its does take a while not too long say about 10 - 15 seconds or so, its not as quick as i had hoped, dnt know what i am doing wrong.