Llano OC help

Hi,
New to overclock.net, new to overclocking. If this is in wrong spot, I appologize in adavance, I didn't see an AMD APU section.

I'm having some trouble with getting tf2/furmark stable after a bit of overclocking. Memtest, IBT, 3D mark 11 all work fine.

Specs:
Asrock A75M-ITX
A8-3850 w/ a stock but not llano stock cooler. New cooler coming, taking longer then supposed to.
G-Skill Ripjaws X 1866 1.5 ram 2x4gb (F3 14900CL9D-8GBXL)
New Seasonic 300w TFX PS, fan crapped out on oe one.

Current OC settings, I don't know what info I need to provide so I'll do as much as possible
Base clock - 110
Cpu multi- 29 (locked, can only go down)
Memory 1866 clocked to 2052
10-11-10-30-2t timings

Voltages:
Cpu - 1.2375v (1.225 tested fine)
NB/GFX - 1.1125v currently, voltages here do not match up to GPU shark voltages, 1.075 tested fine)
Mem - 1.52v
PCIe (vddp?) - 1.21
SB - 1.1

I have tried upping cpu voltage, NB voltage, mem voltage, VDDP voltage (mentioned somewhere this was tied to GFX), dropping mem clock, and loosening mem timings.

3D mark 11 gets a P1246 score with above tested voltages, IBT has never showed me a problem, memtest has found (i fixed) mem errors from faster/tighter settings.

Furmark is ok on 100 base clock, but all the base clocks I've tested (104-106-110) have it crash system anywhere between 2-8%, nothing changes it.

TF2 system crashes when I get to first person and walk around a little.

Since furmark crashes, I'm guessing the gpu is unstable? but, I have no way of giving voltage to my knowledge, as nothing makes a difference in GPU shark, VDDC shows as 1.000 or 1.113 depending on performance state.

I'm hoping for some suggestions, I've spent too much time getting 110 stable outside of gameplay to want to go back to default base clock.
My brother is the computer guy, but, he has no real experience overclocking.

Thanks,
Yeroon
Edited by Yeroon - 6/27/12 at 9:34am

I built the system September last year, so not even a hint the 3870k was going to be coming out. I know the core voltage is low, but its also quite overvolted at factory 1.4v, even in auto it runs at 1,28-1.3. I understand the problem with the locked APU, just not worth the money on another APU to get the now available 3870k when the locked ones have been over clocked successfully.

Ram OC was done last. I had it at 1600 for 104/106/110, with 8-9-8-24 timings, 110 at that returned mem faults, so 9-10-9-28 @110 bclk. However, dropping the ram to 1300 (1466 @110) even with 10-11-10-30 timings and 1.55v still crashes system when I try to play/use furmark benchtest.

IBT at what setting? I'll do it at max for 30 cycles/prime 95 for 12h. I'll up CPU volts to 1.4 spec, but all I've noticed from that was extra power draw/heat.

EDIT: System also does BOINC at 100% load unless I play games, cpu temps stay at around 55-57C, I just bumped volts from 1.2375 to 1.3875 and computer watts went from 107 w/ boinc to 150 with boinc, and cpu temps got to 62 before i backed the voltage to prevoius.
Watt meter sandviched between power plug/power bar.
Edited by Yeroon - 6/27/12 at 1:11pm

Finally got my new cooler installed (scythe Big shurk 2 rev b w/ a gelid 120mm full height fan)
Did the OCCT cpu test for 6 hours, no problems.

I have no problems adding volatge to cpu, but going up to 1.4 doesn't make the issue go way, it just runs hotter/uses more power.
I had 3dmark11 crash with 1.10 nb volts. Upped to 1.2 and it crashed far earlier. Dropped it to 1.000 and it passed 3dmark, however, it won't boot one step lower, .900.

OC options:
CPU volts - testes as low as 1.2, up to 1.45 seems acceptable
CPU locked multi at 29 but down works
Base clock - 100-140ish, but I'm looking at less then 110
NB frequency - stock settings are 654 for 1333 ram at 1.1125, 720 for 1600 w/ same voltage, and 720@1.2 for 1866 ram settings. Range for frequency is 300 ish, up to 800 and 900.
Nb volts 1.1125-1,2 stock, 1.0-1.25 I'm willing to use
Ram clocks of 1333-1600-1866 plus whatever extra the baseclock gives
ram timings are of course selectable.

APU/PCIe VDDPvolts - stock at 1.21 , never seems to make any difference if i add any.
SB at 1.1

Nothing I change seems to make any difference is how soon it crashes in TF2. I get 2-10min and then hard crash. Any help would be appreciated.

Yeroon

Edit: Is there an ajustment i should have in the bios missing, ie i've read about a VDDC volts for an other mfg board, but it doesn't look like i have that

Didn't know that, thanks. I'm trying to keep it as undervolted as possible cpu wise ATM, but who knows how far I'd go if/when i figure out my game crashing issue. I think theres a hard TDP cap built into these chips, so overvolting has drawbacks from what i understand.

Seems my problem was a couple of things, with an odd fix as well.

Changing the dx level in launch options to 9.8 or lower helped tf2 from constantly crashing.

My nb doesn't like going much over 900ish max frequency. 920-940 and i start to get issues.

Lastly, Asrocks tuning software, AXTU, being open/applied lets me actually do benchmarks and play without crashes provided everything else is good. Not open/applied, I hard crash. Nothing changed in the voltages/settings, somehow fixes it.

My cpu limit seems to be right around 3.6ghz at 1.425 volts without really trying to push volts through it.

My mushkin 2133 ram takes 2400 11-12-11-30 at least. I've gotten it up to the max bios 136 base (137 actual) and 2550 11-13-11-32, but graphics driver was crashing/restoring on baseclocks over 133ish, even with slow ram and low nb freq's.

Hope this helps someone.

Yeroon.