Help with AMD Opteron 144 UP o/c

brightside_ · 3 Feb 2006 at 21:21

I have a 144 opteron running on
Asus AN8-Ultra
CABNE 0530 APMW Stepping
currently got it clocked to 2.61GHz stable on prime95 for 15 hours
ran superpi 32mb in 28mins 42.672secs, 1mb in 32.156secs
The cooling is a VapochillMicro Extrme Performance (noisy git) which i'm not all that happy with, it "seems" to idle at about 40 degrees C but the monitoring program is a bit iffy. Vcore is set to 1.475V, but runs at 1.5V more often than not (again according to an Abit monitoring program) I have the chipset voltage at max 1.8V

I had 2.7GHz and 2.8GHz Running out of this, but a) the temps were high b)the system was very unstable, wouldn't even finish SuperPi without rebooting.

any tweaks I could try? any reccomendations? It's my first o/c so any help would be gladly recieved.

TaKeN · 3 Feb 2006 at 21:51

Whats memory Speed ?

Big.Wayne · 3 Feb 2006 at 21:55

Can u run with lower vCore?

Is your memory and HTT divider set correctly?

brightside_ · 4 Feb 2006 at 01:32

memory is running at 237MHz, divider is set at 333, I set it down lower when trying 2.7 and 2.8 but it didnt help. HTT is at x3

I had 270 out of this RAM stable when i started the o/c and got to 2.5GHz without doing anyhting to the memory. Memtested with no errors so i cant see it being my RAM tbh, but you might know more.

the RAM itself is Corsair Twin-X XMS 3200C2PT (all I can afford at the minute, especially as i was just involved in a car accident =\)

I could proabably ramp it up in stages with a lower vcore. i'm away working all through the week so dont have much time

brightside_ · 4 Feb 2006 at 20:10

have managed to get 2.7GHz fairly stable. I haven't been able to run prime 95 for more than an hour yet (because it's a family computer at the moment, due to my parents motherboard dying, so when they're doing stuff I can't leave it running) will proabably run prime overnight tonight to see how it copes. Temperatures from speedfan are 40 under load. How accurate is speedfan, because the ABit EQ program is a bag of rubbish =\
http://valid.x86-secret.com/show_oc?id=69189

Itsjody · 4 Feb 2006 at 21:25

Drop the ram divider to 133, up the vcore higher, try it at about 1.525, try lowering the chipset voltage, seems a bit high.

brightside_ · 4 Feb 2006 at 21:58

chipset can cope with it, its at 30 degrees with 1.8V runnignthrough it. nice heatpipe cooling with a fans. hehe.
so try the memory at 133? if it wont work higher at 266, then surely dropping it more won't make much difference? it's running at 445MHz atm, stable. =\

Itsjody · 4 Feb 2006 at 22:24

i would drop it to 133, as i said before put more volts through the cpu, your temps are fine so should be o.k.
I got 1.525V through mine to get 2.8, i can get it to 3GHZ putting more volts through it but it fails prime.

brightside_ · 5 Feb 2006 at 00:11

tried doing as you said, but the lowest I can drop on my motherboard is DDR200, and even then it didnt like it. BSOD on the windows load up, before reaching the logon screen. =\ I think i'm best burning in 2.7 for a few weeks, and If I want more, then I can try it then. thanks for the help

Itsjody · 5 Feb 2006 at 00:24

A decent overclock all the same, to say it started at 1.8

you should be pleased

Kesnel · 5 Feb 2006 at 00:29

Something somewhere is holding this chip back, as that stepping should easily hit 3Ghz.

Just out of interest did you buy it second hand?

-Mike- · 5 Feb 2006 at 02:06

My vapochill extreme seems really good for cooling, have you definately got it seated correctly mate?

brightside_ · 5 Feb 2006 at 13:50

I wonder whether it's the motherboard, as the motherboard is secondhand. I might well save up for a DFI. That said, I'm also tempted to go for watercooling. The chip was brand new, so unless i messed it up putting it in, which i dont think i did, theres nothing wrong with it.
2.7GHz is stable, burnt it in for 8 hours with prime95, no errors.
I'm also tempted to save up for some G-Skill RAM as this corsair stuff is good, but aint the best, but that would be another £150, so £400 nearly(with watercooling) after I've just put this together =\ It all depends on my christmas bonus, which for some dense reason arrives in march.

Out of interest, Kesnel, whats that 3.4GHz opty cooled by? o.O phase change?

Kesnel · 5 Feb 2006 at 15:26

Yep, Mach II GT cooled. The one in my sig is the same stepping as yours too.

brightside_ · 18 Feb 2006 at 17:24

know I'm resurecting my old thread, but I've been having a mess about and have not been able to get anywhere.

Currently runnign at 2.7GHz stable, RAM is runnign at 245MHz, DDR490. Temps using OCCT under max load is 50 Degrees C Which I consider to be high. My old Socket 754 3000+ ran at 50 degrees in a 7 year old case designed for pentium 2s with no airflow, on a stock cooler.
Voltages in Bios are 1.8V on chipset, 1.475V on CPU and 2.7V on RAM.
RAM is running on a 333 divider. When I try and go on a lower divider, I get BSODs? I don't understand whats up. Without running the RAM on a lower divider, I won't be able to get the FSB up higher, which means no higher clock. I'm planning on watercooling before easter, so temp wise I'll be fine.
I'm beggining to wonder whether my CABNE stepping is one of the worse ones. Is there anyway to check the batch without removing my HSF, cleaninng and reading? =\

Dreadi · 18 Feb 2006 at 17:33

i had a simalar thing happen to me but it involved a little more screwing up on the pcs part like dying, not accepting the ram, not accepting cmos clearing and the dying on voice command.

currently reinstalling windows