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memory instability, can't pass 3.3 GHz

post #1 of 11
Thread Starter 
Hello,

I just joined overclock.net, and I was hoping you guys could help me out. I've been trying to overclock my phenom II 720 and things go smoothly up to 3.3 GHz (vcore: 1.375, HT: 200 MHz, x16.5) when I start hitting memory instability. I've tried increasing vcore, nb voltage and nb frequency to no avail; I still bluescreen while trying to do cinebench at 3.4 GHz.
I'm running this ram: http://www.patriotmemory.com/product...id=1025&type=1
and this mobo: http://www.asrock.com/mb/overview.as...770%20extreme3

Any ideas on what steps I should take next?

Thanks
post #2 of 11
Are you sure your ram isn't just messed up? If it can't function at stock then something is wrong.

Have you tried downclocking?
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Hard DriveOptical DriveCoolingOS
Seagate Barracuda 500GB LG DVD±RW SuperMulti Drive Corsair H60 Windows 8 Developer Preview 64bit 
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post #3 of 11
Change the ram timing and/or put the ram in command rate 2.
    
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CPUMotherboardGraphicsRAM
i7 920 OC 4.0 GHz 1.35v HT on Asus P6T 1366 SLI Gigabyte GTX 970 OCZ 12GB DDR3 GOLD/Platinum mix 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F1 1TB Western digital 300GB Western digital Caviar Blue 1TB Samsung 840 EVO 250Gb 
Optical DriveCoolingOSMonitor
generic LG DVD WC'd , Supreme LT, NexXxoS Xtreme III 360, Phob... Windows 7 x64 Samsung 27" LED S27A550B 
MonitorMonitorKeyboardPower
ACER 23" x233H Dell U3415W Logitech G11 Chieftec 850W 
CaseMouseMouse PadAudio
Phanteks enthoo luxe Razer deathAdder respawn steelseries Qck Yamaha HTR-6130 AV Receiver 
AudioAudio
Yamaha NS-50B floor tower speakers miditech Audiolink II stereo sound card 
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post #4 of 11
Should be able to run that chip on stock volts at 3400mhz.
post #5 of 11
Quote:
Originally Posted by Chuckclc View Post
Should be able to run that chip on stock volts at 3400mhz.
And never have ram issues ever, UNLESS the ram is faulty, or you set it up wrong.
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Phenom II X6 1100T GIGABYTE GA-990FXA-UD3 XFX Radeon HD 6870 Mushkin Blackline 
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Seagate Barracuda 500GB LG DVD±RW SuperMulti Drive Corsair H60 Windows 8 Developer Preview 64bit 
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ASUS MS246 1920x1080 iRocks RF-6570 Antec HCG-520 LIAN LI Lancool PC-K58W 
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Hard DriveOptical DriveCoolingOS
Seagate Barracuda 500GB LG DVD±RW SuperMulti Drive Corsair H60 Windows 8 Developer Preview 64bit 
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ASUS MS246 1920x1080 iRocks RF-6570 Antec HCG-520 LIAN LI Lancool PC-K58W 
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post #6 of 11
Quote:
Originally Posted by Chuckclc View Post
Should be able to run that chip on stock volts at 3400mhz.
Not at all man. They're only guaranteed to run @ stock, the rest is just a question waiting to be answered.
post #7 of 11
Quote:
Originally Posted by Nvidia-Brownies View Post
Not at all man. They're only guaranteed to run @ stock, the rest is just a question waiting to be answered.
Yeah, but Im talking for real.
post #8 of 11
This isn't RAM. You're OCing the CPU via multiplier, it does not affect RAM stability because there is no change in RAM speed, RAM timings or NB speed.
post #9 of 11
Thread Starter 
How would I know if my RAM is bad?
@bit_reaper I tried loosening the timings and the system crashed upon logging into windows =/
@xd_1771, if you don't think RAM stability is an issue, what do you think is the problem?
post #10 of 11
CPU instability. Memory has NOTHING to do with an OC that is performed by increasing the multiplier. You need more CPU voltage.

How do you know (or think) it's memory instability anyway?
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