You might want to look to overclock your cpu and your ram, as far as i know the speed of your memory can improve performance on apus. Please adjust this while referring to the target speed. Note that this value, multiplied with the multiplier, equals your final cpu clock speed in mhz. In the overclocking department, the boards bios offers hypertransport link speeds between 200 and 300mhz and pci express bus speeds between 100 and 145mhz, both in 1mhz increments.
At the same time, the slow move to evermore cores potentially reduces the need for conventional overclocking, as raw clock speed continues to be a lesser concern to multithreading and, in the case of 3d cards, the number of stream processors and texture units. Asus has a nifty little utility called pcprobe2 that comes on the cd that. This will serve as a very useful tool as you overclock your phenom ii. Hypertransport link speed reference clock hypertransport multiplier. The core speed is then determined by the fsb multiplied by the cpu multiplier.
Obviously one cant conclude too much from a single benchmark, but here it is for what its worth. This multiplier determines the clock speed of the ht link. Overclocking the cpunb yields a significant realworld performance gain. The hypertransport consortium is in charge of promoting and developing hypertransport technology. For our first round of overclocking tests, we backed off our ocz memorys timings from 2225 to 2. Radeon settings advisor can optimize your radeon gpu for you and take your performancevisuals to the next level. The nb link always have a performance increase, but only if i increased ram speed also, i set it to 2600mhz with ram at 2000mhz and saw a decent increase in performance and fps, i increased ram.
When overclocking, oftrepeated is that turning down your ht link speed has little effect on performance. Codenamed rd790, final name revealed to be amd 790fx chipset. Hypertransport ht, formerly known as lightning data transport ldt, is a technology for interconnection of computer processors. Intel technologies require each speed range of ram to have its own interface, resulting in a more complex motherboard layout but. Amd fx processors unleashed a guide to performance tuning. It is the hub from which the cpu connects to the hypertransport link, and thus the rest of your system.
Phenom ii 965 c3 page 7 extreme overclocking forums. We would like to show you a description here but the site wont allow us. On my next question, how high should i go for the ht link speed in bios. Size timing voltage brand 1 dimm 2 dimm 4 dimm 787 corsair tw3x4g2000c7gt es ver2. We follow the overclocking scene fairly closely and have found several overclockers using amds 45 nm processors at voltage levels between 1.
Only if these components are tuned equally well to work with each other will you see a significant and cost effective increase in performance. With the 810, i can only increase the fsb in order to overclock the cpu itself. So for this next example i will increase the fsb to create a 3010 mhz cpu or a 3. A packetbased chiptochip interconnect, hypertransport links are pairs of. More on this subject will follow later in the guide, but first we will take a look at our. In computing, the clock multiplier sets the ratio of an internal cpu clock rate to the externally. Another utility for windows xp which allows the user to change. I have an fx 8350 a corsair ax850 a asus m5a99fx pro r2. How to overclock the cpunb and ht hypertransport in the.
A beginners guide to overclocking techpowerup forums. Such was the tale of the first athlon 64 chipset, the nforce3 pro 150. That left the 1066 ddr 2 ram slighly underclocked at 988 mhz. This is the actual hypertransport link between the cpu and the rest of the board.
The importance of northbridge overclocking with the phenom. The first is that the cpu has a high overclock and that everything which is connected to the cpu is slow. Overclock a amd a85500 apu with radeon hd graphics. The hypertransport buss is pretty sensitive, increase it much, and your system becomes unstable fast. The fsb was replaced by hypertransport links between amds cpus. Adjusting voltages can improve performance margins for the pci bus, hypertransport link and chipset core.
I might update with another benchmark, probably dawn of war 2 for its built in benchmark tool. I have it at 2250 mhz right now in bios and at base its 2000. The hypertransport technology consortium is in charge of promoting and developing hypertransport technology. Not until the true am3 processors are released on a true am3ddr3 board will the 2.
I also found the ht link speed made no differance, you can set that as high as you want and it makes no differance at all with performance or stability. It is a bidirectional serialparallel highbandwidth, lowlatency pointtopoint link that was introduced on april 2, 2001. Overclocking is the process of forcing a computer component to run at a higher clock rate the fundamental rate in cycles per second, measured in hertz, at which a computer performs its most basic operations such as adding two numbers or transferring a value from one processor register to another. Introduction out of the box processors have been stuck at 3. The top ht ref clock i could get was 247 on that rig resulting in a 2223 mhz clocking of both the north bridge and hypertransport link speeds. However, this will, in turn, also raise the hypertransport link speed and the memory frequency as well. The overclocking page appears similarly integrated, with options for adjusting the cpu and ht hypertransport multipliers, the ht and pcie bus speeds, and the cpu and gpu voltages. Mini tower can the bios be unlocked or flashed to use bios for overclocking or does it need to be software overclocked. So in the case of my dualcore e2160, the default bus speed 200. To fix this you have to increase ram and northbridge, and work with the hypertransport link htt. Stock it is set at 500mhz i tried at with the 2000mhz ht link and ti wont work but at 2400mhz ht link i was able to push the onboard radeon4200 passed over the for a 1100mhz igp.
Hypertransport communications hypertransport is the glue that makes amds reorg of the traditional pc work. The main mechanisms for increasing processor clock speed are the bclk and. Ht link multipliers maximum value is x, and the cpu nb multiplier value cant. Increasing the clock multiplier will increase the cpu clock speed without. I found i could get to a 250fsb speed without any problems. This is the clock generator which will affect cpu clock, nbht link speed, and ram clock speed when changed. A frontside bus fsb is a computer communication interface bus that was often used in. The ga78lmtusb3 motherboard is designed to offer a stable, highspeed platform for delivering amazingly fast data transfer via revolutionary gigabyte ultra durable technology. Yet another onboard feature of gigabyte amd 800a series motherboards are integrated the latest amd sb850 chip for highspeed sata revision 3. It is time elapsed between the memory controller sending the address of the column and the data that first arrives in response.
Why does it say for a fx 8350 one 2600 mhz 16bit hypertransport link when the asus mb only can go as high as 2400mhz, many oc guides also asus 970 pro gamingaura owners club page 3 overclock. After a bit of tweaking and testing, we found the sweet spot of this processor at a rather frisky 3. Take note of the target speed so that you wont have to end in unstability zone for your cpu nb clock, memory clock and ht clock frequency. Cpu htt hypertransport interface connecting the amd cpu to nvidia nforce 590 sli spp.
The clock speed of the ht link is determined in the multiplier. It has impact on hypertransport bus speed, cpu frequency, as well as memory frequency. Something special happened with my onboard video radeon4200. Msi 790fx gd70 overclocking extreme overclocking forums. Foxconns winfast nf4uk8aa motherboard the tech report. The 4 important timings with respect to ram overclocking are. The speed of the front side bus is often used as an important measure of the. The other throttle is that the devices attached are faster than the cpu needs to be.
Increasing the ht buss doesnt help much anyway, there is already plenty of bandwidth there. Asus 970 pro gamingaura owners club page 3 overclock. Latest technologies gaming graphics and server amd. Because overclocking the nb also affects pcie link speed, imc etc. Page 22 m4a87td evo motherboard qualified vendors lists qvl ddr32000mhz capability dimm socket support optional chip chip vendor part no. Study of athlon 64 overclocking techniques introduction. Ht link speed remembering that its actually a 10x multiple of your. With a 1 ghz hypertransport link to the processor that is 16bits wide both up and downstream, the nforce4 ultra chipset can get quite hot. Hypertransport ht, formerly known as lightning data transport ldt, is a bidirectional serialparallel highbandwidth, lowlatency computer bus. In the case of the amd phenom ii x4 955be cpu, the default value is x10 10x200mhz 2000mhz. For this next example i will take a phenom ii 940 be cpu and overclock it. If either of these bed in, overclocking will need to take them into account. I want to increase the ht link, northbridge frequency.
The new rdna architecture is designed for the next generation of highperformance gaming. Playing around with a new system and decided to bench various ht link speeds. When overclocking, some amd cpu models may not support ddr3 1600 or higher frequency dimms. The cores are connected by the fsb or ht link htl even the. The basics of cpu overclocking terminology, software and. An unlocked cpu multiplier and lots of overclocking headroom make this an awesome value at only. While the casual overclocker may not have much use for these settings with the possible exception of the gfx overclocking option, more adventurous enthusiasts will appreciate the added flexibility they offer. Since data is sequentially placed in memory and a row contains sequential data so its quite simple to catch the fact that columns will be switched more frequently than rows so cas. Cpu htt reference clock clock signal of the cpu hypertransport link. Settings for the hypertransport link are also tweakable as well for maximizing things like memory bandwidth. Nominally, it runs at 1 ghz clock or 4 gbps in downstream and upstream directions. First of all, you want to increase your bus speed which is at 100mhz 400mhz. To tackle this problem, chaintech has used a medium sized chipset cooler which works quite well, yet remains very quiet.
With those settings my cpu was at his full stock potential without even overclocking. The fastest out of the box frequency quad core ever released to date. If you cant do it through bios you might have a cheap motherboard, it might have not been made for overclocking so be careful, but since you cant use bios then try amd overdrive and go to turbo core control and overclock by. Fsb times the ht multiplier equals the ht link speed or sometimes. The cpu is its brain, the hypertransport link is its nervous system, the internal memory controller is its heart, the ram are its lungs, and the video card is its muscles. So i tried decreasing the cpu multiplier, hyperlink transport speed, and ram speed, while increasing the bus speed. The overclocking design works particularly well if youre aiming to play an advanced gaming or multimedia application on your computer. Otherwise it would be better to just firstly start with, just the cpu multiplier overclocking. The hypertransport link multiplier was unlocked upwards and downwards with our black edition processor however it seemed apparent that there was no cpu northbridge multiplier available. This page is an important one for those who plan on buying a motherboard such as. My mainboard allows the hypertransport link speed and ram speed to be set independent of the bus speed, which makes things a little easier.
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