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Need help OC an Athlon II x4 645

post #1 of 6
Thread Starter 
I now have an athlon x4 645 and I am very confused about whats been happening while OC. I have it super stable now at 3.4 with 1.38v @40c. Pretty good right? Sure, but I however simply cannot get it to 3.5 stable, even @ up to 1.45v still a P95 crash within 5 min. My guess as an amateur overclocker that I am missing something with another setting. Perhaps NB voltage or something like that. I realize I don't have a super high end board but I figure if I could get 3.4 staying under 1.4v then the CPU is a decent overclocker and that I'm drawing a blank in some other category. Please help, thanks!
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I have Ryzen!
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post #2 of 6
Don't push that board too much, you might end up with VRM issues and a dead board. however, you might be missing the RAM multiplier, and with the FSB value you have set the kit might not be able to keep up. What is your current RAM speed?
Edited by matroska - 8/12/11 at 4:07pm
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I need upgrades
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post #3 of 6
^^^ Copy that. If you look on the VRM failures list on my "About VRMS & MOSFETs - motherboard safety" article, you will see that one of the failures is an MSI 880GM with an Athlon II x4 on a fairly mild 1.4V overclock. A weak 3+1 phase not very suitable for OC-ing. Make sure it is cooled at the least but I recommend not pushing it too far.

Your generic 1333 Ballistix Sport RAM may also hold everything back. generic 1333 CL9 RAM is low end RAM and not specifically binned for overclockability. You may have gotten chips on your RAM that will not even budge a couple Mhz past stock settings. The best flexibility is attained with a DDR3-1600 kit - which can be obtained at a low price (around $27 on Superbiiz after $5 off promo code GOFISH).
post #4 of 6
Thread Starter 
Right now my RAM is at 733mhz (1466) with a 220 bus and the HT link multi at 9x(1980) instead of 10x. At that speed and the cpu at 3.4 I have been running the prime95 blend test for 8 hours now without a hitch. I think I will just take it easy and keep it sitting at 3.4 on 1.38v until I can afford to upgrade my board.
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I have Ryzen!
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post #5 of 6
Hi all. Newbie here.

I'm in the same boat as Jayjr1105.

Here are my specs:

CPU: AMD x4 645
BOARD: MSI 880GM-E41
RAM: 16GB (4x4) G.Skill Ripjaws 1600 (F3-12800CL9Q-16GBXL)
PSU: Cooler Master (RS750-ACAAE3-US) 750W PSU
HD's: 3x Seagate (Constellation ES ST3500514NS) 500GB in RAID0
CASE: Cooler Master (RC-310-SWN1-GP) Case
HS/FAN: Zalman (CNPS9500A-LED) Cooler Applied w/Arctic Silver
CASE FANS: 2x COOLMAX (CMF-1225-GN) 120mm (front+side) 85 CFM
CASE FANS: 1x Scythe (DFS123812-3000) 120mm (exhaust) 133 CFM
VID: XFX (PVT96GYDSU) 9600GT Alpha Dog



Here are some screen shots of my bios config:





Like Jayjr1105, I cannot get past 220FSB/3410MHZ

I've tried increasing the cpu voltage up to 1.395 but it seems to make no difference. (little weary of the 1.4)

It just seems strange that i'm stuck at this speed.

Using AMD Overdrive's stability test it's usually obvious if it's going to be stable or not.
At anything above 225 it's a fairly quick crash. Sometimes it won't get to windows.

I've tried so many things but nothing works. I'm sort of a newbie at some of these settings
so i too wonder if its just something i have wrong.

Feel free to request more/different screen shots or details.

Thanks for reading.


Edited by BGL - 10/6/11 at 8:55pm
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Time Suck
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Athlon II X4 645 (95W) @ 3.4+ MSI 880GM-E41 Galaxy 56NPH6HS4IXX GeForce GTX 560 16GB (4x4) G.Skill Ripjaws 1600 F3-12800CL9Q-16GB 
Hard DriveMonitorPowerCase
3x Constellation (ST3500514NS) 500GB in Raid0 ASUS VW246H 24" 2ms Cooler Master (RS750-ACAAE3-US) 750W Cooler Master (RC-310-SWN1-GP) 
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post #6 of 6
*Bump*

I've edited my original post ^ a little to simplify. About the only thing i haven't tried is increasing CPU-NB voltage +/-in combo w/CPU Voltage. Little weary of CPU-NB but it's probably going to be what's next.

Ideas?
Time Suck
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 645 (95W) @ 3.4+ MSI 880GM-E41 Galaxy 56NPH6HS4IXX GeForce GTX 560 16GB (4x4) G.Skill Ripjaws 1600 F3-12800CL9Q-16GB 
Hard DriveMonitorPowerCase
3x Constellation (ST3500514NS) 500GB in Raid0 ASUS VW246H 24" 2ms Cooler Master (RS750-ACAAE3-US) 750W Cooler Master (RC-310-SWN1-GP) 
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Time Suck
(13 items)
 
  
CPUMotherboardGraphicsRAM
Athlon II X4 645 (95W) @ 3.4+ MSI 880GM-E41 Galaxy 56NPH6HS4IXX GeForce GTX 560 16GB (4x4) G.Skill Ripjaws 1600 F3-12800CL9Q-16GB 
Hard DriveMonitorPowerCase
3x Constellation (ST3500514NS) 500GB in Raid0 ASUS VW246H 24" 2ms Cooler Master (RS750-ACAAE3-US) 750W Cooler Master (RC-310-SWN1-GP) 
  hide details  
Reply
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