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NForce 680i Overclocking The defining area for the 680i chipset has to be overclocking. The 500 family chipsets for Intel performed fine in many areas, but they were one of the worst chipsets available for Intel in overclocking, topping out somewhere below 350 MHz on the bus speeds. This area kept many Enthusiasts from embracing the NVIDIA SLI solution for their Core 2 processors. It appeared NVIDIA had designed the 500 chipset family for spectacular overclocking on the 200 MHz HTT AMD AM2 chipset. The problem, of course, is that Core 2 processors were released at 1067 FSB (266 base bus speed), and the 500 family chipsets did not have anywhere close to the headroom of the competing Intel chipsets.
All of that has changed, NVIDIA tells us, with a 680i that can do 1333 FSB and more and DDR2 memory speeds of 1200 and beyond. These results were with air cooling using a Tuniq 120 air cooler, which sandwiches a 120mm fan in a finned heatpipe core as pictured above. Click to enlarge One of our X6800 processors reached 2100 FSB, confirming NVIDIA's claims of overclocking an X6800 in their labs to 2070 FSB. Not only did we reach 2100 FSB (525) at a 7X multiplier (3.675GHz), we managed to reach that speed at default voltage. The system has run at those settings for several days without incident and has handled every test and benchmark we have thrown at the system. However, it should also be pointed out that a second X6800 CPU would not overclock 1 MHz higher than 1900 FSB (450) on this same motherboard, even though that X6800 reached a similar 4GHz maximum overclock and similar 'default voltage' overclocks. We have yet to find anything obvious that would explain these differences in maximum FSB in the X6800 chips we tested.
Revision and Stepping explained nothing, and we also had four retail E6600 we tested that would not reach above 1800 FSB. We are looking into these findings further and hope to find some explanations to share with you that will explain these maximum FSB differences among 4MB Cache Core 2 chips. Click to enlarge Interestingly, all of the 2MB cache Core 2 processors we tested reached at least 2000 FSB, with the two tested E6300 reaching 2100 FSB (522x7 and 6x525). We were prepared to call the amount of cache the defining difference in FSB performance until the late X6800 reached 2100 in our labs and NVIDIA confirmed their own 2070 results with an X6800 Extreme. We are much more confident that 2MB Cache chips can top 2000 FSB and we are very anxious to find something that will help you identify 4MB cache chips that will reach the 'magic' 2000, 2070, and 2100 FSB overclocks. Overall overclocking performance with the 680i was spectacular, and the results should excite any of you who want to do some serious overclocking with a Core 2 processor.
At the very least the nForce 600i chipset family gives shoppers new choices in motherboards that will make the most of their Core 2 processor. Friday, December 08, 2006 - I'm wondering if these touted new 680i boards are vaporware, especially the Gigabyte GA-N680SLI-DQ6 board. Ever since you first alerted us to the fact that the 680i chipset was replacing the 590 version, I've been waiting to see this whole new array of motherboards.
However, aside from a few boards (ASUS and a few others) the major board manufacturers haven't been forthcoming with these products. Maybe this is just going to be some sort of a big Christmas present that Santa delivers on the holiday. If you guys at AnandTech have some info on this, I'd sure like to hear about. Wednesday, November 29, 2006 - I, for one, am going to seriously miss the native hardware firewall of the nForce3 and nForce4 chipsets, so I'm anything but 'thankful' for seeing it 'jettisoned into deep space.' Actually, this was one of the coolest features of the nForce chipsets and truly innovative. NVidia's stance as to removing it because the functionality is built into Windows Vista doesn't ring true.
A software solution can never work as efficiently and transparently as a hardware solution. And what of the people having no intention to switch to Windows Vista, and there are many reasons for not wanting to. They're practically left out in the cold. I second the opinion that nVidia probably botched the hardware in some form or other, although the hardware firewall works quite well on my nForce3 250gb based system, once you get familiar with its quirks.
This actually doesn't bode well for nVidia's 'inventiveness' and 'forward-thinking' (think DualNet), since chances are nVidia will drop support completely rather than work out the bugs that inevitably will be there. Removing the hardware firewall is the best example of this. Also, and this is a bit off-topic in regard to the rest of this topic, wasn't there supposed to be ECC memory support in the new northbridge for the 680i chipset?
I remember reading about the northbridge also being used in the new nForce Pro series chipsets. Another feature that has been removed in the mean time?
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Software Overclocking aka Soft FSB Most of us now know that you can overclock the FSB of your processor in the BIOS but many of us do not know that we can overclock the FSB through Windows or Software. Using a very popular program by H.Oda called Soft FSB we can overclock the FSB in Windows without even rebooting to put the changes into affect. The purpose of this Windows based application is to change the base clock(FSB) frequency of your system without restarting the system. Any FSB changes are instantaneous. Soft FSB runs on Windows 95/98 and Windows NT 4.0/5.0 in both Japanese and English modes. According to H.Oda, originally this software was made to see if it was possible to set FSB values which cannot be set with use of the BIOS. If you raise the FSB too high then it is possible that the CPU may not function correctly anymore, and the system will hang.
While I find overclocking through the BIOS better, many users who's motherboards don't have overclocking support depend on this program heavily. Soft FSB is supported on all motherboards that have a clock generator. Dead rising 2 multiplayer split screen 3 players. Soft FSB uses this generator to overclock the FSB just as the BIOS does to control the clock speed of the processor. However, as I mentioned above Soft FSB has very good advantages like not having to reboot to overclock. Soft FSB is a very easy to use program with common sense is also used. It is a small (around 100kb) download and will not cost you a single cent. If you would like to try some software FSB overclocking, you can download Soft FSB over at like thousands of other people have done worldwide.
These are links to the specific program's site, and not a direct download link. Download at your own risk! Raspberry pi mpeg2 license generator crack.
CPU Overclocking utilities - The latest overclocking and tuning program from nVidia. A cpu overclocking tool designed for various motherboards. Graphics Card Overclocking Utilities - Adds overclocking tab in ATI Control Panel, and also allows you to customize overclock settings for different games.
ATI cards only - Registry tweak that enables overclocking with Detonator drivers. NVidia cards only - Very powerful tweaking/overclocking program designed for the hardcore user. Supports a variety of chipsets. ATI and nVidia cards supported - nVidia graphics card tweaking program. Has many pre-configured profiles for obtaining best results with various benchmarks, including 3dMark2k1se.
NVidia cards only - Provides overclocking options in an easy interface. ATI cards only - Powerful graphics card tweaking/overclocking utility. ATI and nVidia cards supported Stability Testing - A very effective stability tester that stresses the CPU and RAM. Also a good benchmarking utility. Try this if you are experiencing problems at a high FSB, or if your system is unstable with RAM at stock speed. Tests CPU and all motherboard units for errors. program that simulates protein folding, and stresses CPU.
Distributed computing program that searches for extra-terrestrial life. Stresses cpu. Stresses cpu and or memory in a 30 minute test. A stress test for dual core processors. Benchmarks - Tests graphics card performance. Also doubles as overclock stability tester for CPU, RAM, and GPU.
What a workout. Tests 3D performance of your graphics card. Tests graphics card performance(DX9) and is also a good stability tester, like its older brother. DX9 Benchmark - Measures processor, RAM, and hard drive performance.
Benchmark suite that provides tests for practically every component in your system, including a CPU Burn-in stability tester. Also displays detailed information about your parts. Benchmark suite that focuses on speed and accuracy. Hard drive performance benchmark Miscellaneous Windows information Thanks allen41547 - Small program that displays information about your processor. Program that displays information about your RAM, CPU, and motherboard chipset. Program that displays information about any AMD processor. Also gives an approximate performance rating.
Senses and displays various temperatures from the motherboard. Also displays the PSU rails, and fan speeds.
Enables access to memory timings through Windows for the Intel 865/875 chipset. Utility for adjusting memory timings in windows. CAUTION it's a beta I will add more as I find more. Thanks for looking, Torrey Edited August 23, 2007 by shogan191.
Heat & Cooling All processors run hot, even when clocked at default frequencies or even underclocked for that matter. When you overclock the processor, you cause the processors core and cache to operate faster and hotter temperatures then designed to. It goes without saying - 'Heat is the enemy of all overclockers'.
Nvidia Overclocking Software
The lower temperature you can get your processor running at the better. You will experience better overclocking results, less crashes and a longer processor lifetime.
Enter the wonderful world which is CPU cooling. I could make this section around 5,000 words long, but I won't. There are a LOT of coolers designed for socket 370 and slot 1 processors. There are SO MANY which I could list, I will only list the few I recommend. Recommended Socket 370 Coolers - Thermaltake Golden Orb - Global Win FKP32 - Alpha PAL6035 Recommended Slot 1 Coolers - Thermaltake Golden Orb - Alpha P312S I have only had good experience with such companies as Thermaltake, Global Win and Alpha.
I can safely recommend any cooler made by each company. All of the coolers mentioned above can be purchased from either - -. We won't even begin talking about extreme cooling such as Peltier TEC and water cooling kits because it will need a complete guide covered just for itself. It is also recommend that you use gray high quality thermal paste (goop). For more information on what I consider the best thermal paste ever, I suggest you read our Arctic Silver review as it WILL make a difference to your overclocking results. I also think complete case cooling is very important when overclock your processor. There are many different case fans you can buy, but here are just three I recommend and have personally used in my systems before today.
Set Fsb
Recommended Case Fans - 2COOLPC Turbo - GlobalWin CAF12 - The Card Cooler XT Stepping Each type of Intel processor has several different variations called 'stepping'. Stepping 0 cores are the original production run. When minor bugs (crashes etc) are discovered in the core they are fixed and the next batch of cores will incorporate the changes and thus be fixed.
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Nvidia Overclock Program
These batches are identified as Stepping 1. If another change is required later, the stepping number will be incremented again. As each change to the chip is made, the next higher stepping number will be assigned. In some cases one stepping higher may be easier to overclock than another (lower) stepping, but usually the highest stepping cores are the best and most overclockable.