Im a novice over clocker with a asropck extreme 3 main with 16gb Radeon ram 2x 7870's oc etd my few questions are the following 1.Ive tried to manual overclock and at about 4.3ghz it starts to require alot of volts do I need to up the fsb or something? 2. my crossfire setup has stopped working I had 2 bridges both don't work for **** and look all bent up and think a roommate messed with it do these things normally go bad in 3 months if that? 3. Im running 1600mhz ram with a decent spreader is it easy to overclock to 1866?
Cpu gpu runs fine FX-8350 .gpu-z says my cards ar running at pci-e1.1 when its a 2.0 board anybody know why?
The 7000 series video card has power saving features built into it. Use GPU-Z and right of the Bus Interface is a blue ? mark. click on it and start the render test and it should go up to x16. Or you can go to Catalyst Control Center and click on Infromation then click on Hardware and it tells you the max speed of the PCI-E.
What chipset is that AsRock Extreme3 you have?
disable cool n quiet and other power saving options in the BIOS
keep your temps under 60C (would say 55C for a 24x7 overclock)
keep your voltages under 1.5v (very imp)
go slow on overclocking 10Mhz~ 20Mhz or x1 multiplier in each increment n testing each increment for atleast 20 mins with prime 95 blend well you hit any of the following walls
Heat hovers around 60C
max FSB or Reference Clock
start fine tweaking with the FSB n the multiplier n find the perfect combination of it
n then overclock your CPU-NB n lastly tighten your RAM timmings n test the RAM stability with memtest+ 86 for atleast 2 3 rounds n make sure you have the bootable version of memtest+ 86
Hope that helped
safely voltages are
CPU 1.5v many say 1.55v but not recommend for 24x7 oc
CPU-NB 1.35v if temps are ok then 1.4v at max
you have a unlocked cpu so try setting everything at stock settings n then just increase the CPU multiplier
by 0.5x or 1x n reboot until you the point you cant boot up go a step down boot n see if its stable if not then add 0.05v or the smallest increment n see if its stable
BTW you got a 5+1 Phase VRM motherboard so dont except huge overclocks a mid overclock of 400Mhz to 500Mhz would be ok over that your motherboard vrm might throttle or and really start heating up which may lead to vrm failure even if your motherboard has a pretty decent build