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Help With Conroe E6600
Ok,
here is my problem I have an e6600 on an asrock 945g-dvi mainboard witha leadtek 7600gt graphics card. When i first got the computer i had a stick of corsair select 533mhz 1gb memory. I since have brought some corsair XMS2 667Mhz 2x 1gb to enable dual channel. When I had the 1gig stick i couldn't raise the fsb past 300 giving me a clock speed of 2.7mhz. Now I have the so called good quality ram and running dual channel I still can't get the fsb past 300mhz, even though it is faster ram. My 3d marks have not increased, so basically i have spent $430 dollars for no gain (how ****ed am I) I have checked all my bios settings and everything seems set right. In the bios there are no multiplier settings, only fsb is adjustable and u can't increase the v-core cause it is locked. I am very frustrated as I thought going from 533mhz to 667 mhz ram and enabling dual channel i would see some improvement, but nothing, I am open to any suggestions! |
#2
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Help With Conroe E6600
"wheres_wally" wrote in message...
When I had the 1gig stick i couldn't raise the fsb past 300 giving me a clock speed of 2.7mhz. Did you discover what the bottleneck was? Now I have the so called good quality ram and running dual channel I still can't get the fsb past 300mhz, even though it is faster ram. The obvious conclusion to draw from this is that your memory was not the factor originally holding your system back. My 3d marks have not increased, If your life really is governed by 3DMark scores, you need to get out more, maybe find a girl. Do you happen to know what your memory bandwidth is with the old and new RAM? There are benchmarks other than 3DMark y'know. so basically i have spent $430 dollars for no gain (how ****ed am I) You know the old saying about the fool and his money being easily parted? I have checked all my bios settings and everything seems set right. Well obviously, otherwise you wouldn't be here regaling us with your tale of woe. It might be more helpful if you told us *exactly* how your BIOS is set up. That way we might be able to spot something that you have done wrong but haven't noticed. In the bios there are no multiplier settings, only fsb is adjustable Par for the course with Intel CPUs, bar the Xtreme ones. and u can't increase the v-core cause it is locked. That's a bit crap. Unusual for a modern motherboard to allow manual FSB adjustment while not allowing at least CPU core and memory bus voltage to be varied. Are any voltages adjustable? What about the memory, northbridge, Vtt and so-forth? Are you sure you haven't missed a setting somewhere that enables user voltage adjustment - or indeed a BIOS upgrade that enables it? I am very frustrated as I thought going from 533mhz to 667 mhz ram and enabling dual channel i would see some improvement, but nothing, Well yes, it should, it should more than double your effective memory bandwidth, provided you put the sticks in the right slots and either your motherboard makes the memory bus multiplier switch automatically, or you set it manually. Did you set the memory bus multiplier for DDR667 after installing the new RAM? If the memory bandwidth has improved you should see some improvement in a 3DMark score, but as these benchmarks are primarily graphics, and to a lesser extent processor-centric, you shouldn't have been expecting a major boost. As I alluded earlier, if your life revolves around 3DMark scores, you really should try and get out more. I am open to any suggestions! Well, first of all your entire approach to this is all wrong. Randomly chucking new memory on in the vain hope of getting a better overclock is, well, dumb. Before you shelled out on the new stuff you should have experimented with your existing setup to try and find out what was limiting you to 300MHz FSB. Did you try dropping the memory bus speed to see if this would allow you to overclock further? Did you try altering the memory timings? Checking that your cooling solution is working properly? Did you try altering anything else this board allows you to alter? Overclocking is a fairly easy process if you approach it methodically. You need to find the limit of your kit and the best way for you to do that is to sit there changing BIOS settings and seeing what gets you more speed. At end of day, provided you set it up correctly then your new memory *will* be giving you a performance boost over what you had in before. Check your memory bus multiplier is set appropriately and use a benchmark that directly measures memory bandwidth (Sandra's is good as a comparative test) and you should soon tell whether it has made a difference. If your motherboard really doesn't allow any voltage adjustments then your overclocking headroom is going to be limited. Maybe a new board should be next on your upgrade list - E6600's can overclock famously in the right circumstances and I'm surprised in some ways that you can't get past 300 at stock voltage. As such it'd be interesting to find out what would happen if you dropped the memory bus multiplier down to DDR2-400 settings. If you do this and suddenly find you can overclock further, then your bottleneck is memory bus stability. If you do this and still find you're stuck at 300, then the limit is most probably the CPU itself (given that you say you can't boost the core voltage) or the inherent stability of your motherboard. Like I said earlier tho, look at your system and see what it tells you. Could be a flaky PSU, could be something else. Whatever the cause, you're the guy with the computer sat in front of you. That makes you far better qualified than any of us to sort it out. -- Richard Hopkins Cardiff, Wales, United Kingdom (replace nospam with pipex in reply address) The UK's leading technology reseller www.dabs.com |
#3
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Help With Conroe E6600
wheres_wally wrote: Ok, here is my problem I have an e6600 on an asrock 945g-dvi mainboard witha leadtek 7600gt graphics card. When i first got the computer i had a stick of corsair select 533mhz 1gb memory. I since have brought some corsair XMS2 667Mhz 2x 1gb to enable dual channel. When I had the 1gig stick i couldn't raise the fsb past 300 giving me a clock speed of 2.7mhz. Now I have the so called good quality ram and running dual channel I still can't get the fsb past 300mhz, even though it is faster ram. My 3d marks have not increased, so basically i have spent $430 dollars for no gain (how ****ed am I) I have checked all my bios settings and everything seems set right. In the bios there are no multiplier settings, only fsb is adjustable and u can't increase the v-core cause it is locked. I am very frustrated as I thought going from 533mhz to 667 mhz ram and enabling dual channel i would see some improvement, but nothing, I am open to any suggestions! First of all, if you are going to overclock, you need to do some background reading here. You might be surprised about what holds back these systems. I'm not about to repeat all what I've read, because I might get it wrong, and because I cannot verify any of it by reading it in Intel's datasheets. So you'll have to read it for yourself. http://xtremesystems.org/forums/ Here is a hint for you. You can overclock farther by changing the clock to the CPU while you are in Windows. The reason for this has to do with the "strap" used. "Strapping" is normally a hardware feature, where defaults for hardware are applied when the systems starts (at time T=0). It is also possible to apply straps under BIOS control, either though (secret) registers in the Northbridge, or via GPIO signals applied to the outside of the chip. A system is "strapped" in the BIOS, and performance range is determined by the strap used. But the "strap" and the monkey-business associated with it, is not made visible in the BIOS. So it has taken overclockers a while to figure some of it out. (I.e. Why is my overclock via the BIOS, behaving different than overclocking while in Windows? ) So one overclockers trick, is to select a clock frequency in the BIOS, which is not an overclocking value. Purely to force the BIOS to select a particular strap. Then, you go into Windows and use a utility to change the clock setting to the desired overclock speed. Much greater overclocks have been achieved by doing that, as well as better benchmark results for identical clock settings. The strap affects how the Northbridge works, and affects latency to the memory. The picture at the bottom of this page, shows a guy using Gigabyte "Easytune5" to set a higher clock while in Windows. In some cases, a program like Clockgen from cpuid.com can be used. http://xtremesystems.org/forums/show...light=gigabyte Note that the above strangeness applies to Intel chipsets. It is possible if some good non-Intel-chipset Conroe boards come along, that more "linear" behavior in overclock, will be observed. Only time will tell. Paul |
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