X2 5000+ BE stuck at 2.8

Hello.

I just built a new computer and decided to over clock for the first time.
I went with a X2 5000+ Black Edition and an Asus M3a78-T


now I read the reviews and several articles and that talked about getting to 3.0 Ghz on stock voltage with just the multiplier.

My problem is that I am unable to get past 2.8 properly.
at 2.9 I can run Prime 95 for only 5 hours if im lucky and at 3 its a 30% chance I wont get in to windows.

I tried upping the Voltage to 1.4 and still nothing.
the odd thing is when im at 1.4 volts Cpu-Z, AMD Power Monitor and Throttle Watch all report the voltage as 1.3. yet the BIOS shows 1.399 under the hardware monitor.

Temps should be fine I have yet to see any thing above 25c at 1.4
and Cool n Quiet is disabled. The northbridge temps get in the low 50s, not sure if that is good or bad.

I hope I do not have a bum chip or some thing wrong with my motherboard.
it would be hard to return them since both work fine at stock.

I am not sure what to do since this is my first time overclocking.
Any help would be great.
I would Like to get to 3.0 since I sort of told my friends I was at the speed.

Thanks

Ya I am just changing the multiplier.
I have tried the Voltage at Auto and manually
When I got stuck at 2.8 on auto I started to up the voltage from 1.325 then to 1.350, 1.375 and to 1.400

my specs are

M3a78-t
x2 5000+ BE
Thermaltake Ruby Orb
OCZ ddr2 800mhz 2.1v Epp #1 @ 5 4 4 15 2t ( I manually had to set the timing and voltage.)
Corsair TX 750w
Ati 4870
and as of today a 24" Samsung screen.

Thanks for the help so far.

Thanks
I put the Voltage to 1.425 seems to be working. I never thought to try 1.425
not knowing the limits might have blocked the idea of going over 1.4 from my head.

I was able to finish the 3dmark 03 test.
I will run a 24 hour test later this week.

Thanks for helping.
Its good to learn something new

asus M2A-VM
x2 5000+ BE at 3.2 ghz
Thermaltake max orbe
corsair ddr2 800mhz 2.1v
cpu volt 1.500
16x mult

mine runnen at 35 idel and 55 max load im runnen a thermal take max orb n man this fan is the best i was gitting in the 90c once i shut the sys down for like a day was afrade to start it back up after that

i have im thinking about gitting the thermaltake big water 740i sys im trying to find a water block for my xfx 9800 gt n i cant find one

Hey Wizdom......the 5000BE is multi unlocked, I bet its your motherboard that doesnt allow you to change it.

@ n1stunna........I also have the 5000BE at stock everything except the multi which is at X16......ram is OCZ 2GB @ 4-4-4-15 2T.......sounds like your motherboards are holding u back

hey guys, I have an athlon 64 x2 5000+ (its not a black edition though), I wanted to see if i could squeeze alittle more out of it.

I have a
asus m2n-sli deluxe
artic freezer pro 64
ocz 2gb 800mhz platinum ram.

Using a mobo AI overclock utility, it can set my cpu to 2.86ghz, it does this by raising the fsb (i only tried it so see what would happen),and off the top of my head it set the fsb to 220, which thus changed everything else; giving me 2.86ghz, faster ram mhz, and a HT of 1100. should I aim to keep the HT at 1000, not higher, I remember reading that somewhere on these forums?

at stock it runs at 2.6 ghz, but looking at cpu-z, apparently my ram is only running at 373mhz: so ddr2 746mhz?
do i need to manaully set my ram settings? (its at timings of 5-5-5-15 btw).

another thing im confused about, is that cpu-z says the voltage on my cpu is 1.248v, but my Asus AI booster utility says the voltage is 1.43v! thats a huge discrepancy!!!

any advice would be greatly appreciated! thanks.

thanks for your reply n1stunna!

I have set my ram to 4-4-4-15. It ran at 4-4-4-12 (though i didnt stress it, i just used my comp normally) but i relaxed it back to 15 as thats what the website says it can do.

my voltages still dont match, and i've had a look at my bios, and it was set to auto. so i manaually tried setting it to different voltages, yet ai booster (dnd my bios hardware monitor) still said it was at 1.43v! I've been getting some high temps, which suprised me, as I have an artic freezer cpu fan, and although my case is nothing special it is functional.

I guess I'll jus try incrementally improving my fsb without fiddling with vcore until I know exactly which values are correct. I have read that people attempt 1:1 ram:fsb ratios, is this possible with amd's? mine is currently cpu/7, which seems to be why my ram is not runnning at full speed. I'm not overly worried about that though, as its only a few mhz off and with tighter timings, I doubt I'll notice any real world difference. (Still annoying though!)

as with regards to HT, how exactly does it affect my system? Do I want to keep it at around 1000, what happens if its a little above or below that? does it affect speed of cpu or ram? Would I actually like to get it as high as I can with remaining stable, or should you still aim to keep it at 1000?

thanks again.

Multi x ref = cpu clock 16 x 200 = 3200 CPU
ref x HT multi = HT 200 x 5 = 1000 HT
cpu clk / ram divisor = ram speed 3200 / 8 = 400 ie 800ddr2