Discussion in 'techPowerUp! Club Forum' started by pantherx12, Oct 12, 2011.
When ever I oc PC turns on then back off
What is being OC'ed exactly? CPU, NB, memory? And what speeds and so on?
@Pacman, I only have personal experience with AMD, but I've never had an issue in anything I play. I'm sure a decent intel chip could do better, but for me just about everything I have is around 60fps and ultra.
I recently went from Phenom II X6 to FX 8320 @ 4.2 and happy about the performance. Only gripe for me is heat, if you know to tame this animal then its a good buy.
Depending on the wattage the chip is eating it could be the OCP kicking in.
Good job, looks like a nice build I can't wait to get back to gaming. I have been without a rig now for a few months and its killing me
CPU and CPU nb and 4.5GHz
I have no idea on how many watts its sucking.
YOO pacman ya back! hope things are all well and good for ya over there!
typical brits here still moaning about the weather, even when its nice. (which it isnt nice because the heat)
ive been using this 8350 for a while and it plays all the games. but the one thing AMD has over intel is price... if you have the budget then intel is probably the better option.
steamroller is end of year or early next year (literally god knows) the new Fx9*** just look like overclocked 8350s. cadawall shall be testing one soon
im even planning on an intel rig next year to see if what the hype is all about, and to experience different platforms.
Could be unstable CPUnb, if I clock mine to high it will do what you described. 4.5 on the CPU I wouldn't think would be a problem. unless it's wayyy undervolted on nb or cpu.
NB is at 2400MHz
and when i try 4.5GHz i raise volts to 1.4
doesn't look like it should cause a problem at all.
do you guys mess with the LLC
On Asus boards I always set mine to High, or whatever was second from the highest when doing large OC's. Some manufacturers have LLC labelled backwards though.
I have an ASUS board and i do have it set to high
not enough volts maybe??
i don't think that's the issue
I might be with dinky on the voltage. If it just crashes under load that is. Your description of the problem is pretty vague.
I have my LLC set to ultra high for the CPU and high for the NB.
For my CPU to be rock stable ( Chimp Challenge F@H for nearly 2 weeks straight) I'm at 4.64G with 1.476v and CPU_NB @ 2500 1.35v. I find the IMC on some of these piledrivers to be a bit weak and needing a bit more volts to keep them happy.
I can't see how my description is vague. Its simple PC turns on then back off.
CPU Ratio - 22.5
CPU Bus - 200
CPU/NB - 2400MHz
HT Link - 2400MHz
CPU Spread Spectrum - Disabled
PCIe Spread Spectrum - Disabled
EPU Power saving Mode - Disabled
CPU VDDA Voltage - 2.5v
DRAM Voltage - 1.5v
NB voltage - 1.15v
NB HT Voltage - 1.20v
SB Voltage - 1.15v
CPU LLC - Ultra High
CPU/NB LLC - High
CPU Current - 120%
CPU/NB Current - 120%
CPU PowerPhase Control - Optimal
VRM Spread Spectrum - enabled
CPU Power Duty Control - T-Probe
DRAM Power Phase Control - Optimal
Cool'n'Quiet - Disabled by CPU
C1E - Disabled
SVM - Disabled
Core C6 State - Disabled
HPC Mode - Disabled
You didn't include the CPU and CPU_NB volts. So it just randomly shuts down or shutsdown immediately ? Under load. Either way that sounds like NB to me as well. Try leaving everything the same and dropping the NB freq only and see if you have the same problem.
CPU Voltage 1.39 and it shutdown immediately. Tried that dropped it to 2200MHz no change but dropping CPU to 4.4GHz and volts to 1.3875 booted right up and no shutdown
i think its lack of volts, remember booting up and loading OS is near full load, if it hasnt got the volts itll crash.
same for cpunb!
no harm in trying, everything else looks ok.
@johan i cant get my cpunb/IMC pretty good with this chip. it can handle the ram fully stable up to 2600mhz and cpunb 2.7. but i cant get the cpu over 4.8 with higher ram.
so should i try 1.42v
You'll need to drop the timings abit. Especially with the higher NB freq. Try raising th CL by one from say 10 to 11 or whatever. That's where I'd start. What volts are you putting into the ram. When I'm pushing my ram in the 24-2500 range it's at 1.75v
Yes have you done any type of stability testing after your OC's EG P95 blend
i always so do whats required but stay within temps. (62*c max and ive been up to 1.62v trying to get 5ghz stable)
damn my VID is 1.3875v
youll be ok im sure.
edit @ johan: 1.7v for 2600mhz 11-13-13-31 and its faster than 2100mhz 10-10-10-31. also allows me to bench with hard!
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