Crashes at 1600MHz

a03dugga

a03dugga

a03dugga

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Hey guys, ive been meddling with the over-clocking facilities within the BIOS of my PC and my system seems to crash after a while with the ram set to 1600MHz.

My spec's are as follows:
Asus m47a8td/usb3 motherboard
https://www.overclockers.co.uk/showproduct.php?prodid=MB-410-AS
AMD Phenom ii x4 955 BE 3.20GHz @ 3.80GHz
https://www.overclockers.co.uk/showproduct.php?prodid=CP-244-AM
OCZ reaper low-latency 4gb (2x2gb) ddr3 ram
https://www.overclockers.co.uk/showproduct.php?prodid=MY-201-OC
BeQuiet E7 600w psu
https://www.overclockers.co.uk/showproduct.php?prodid=CA-032-BQ
Asus GTX 460 1GB
https://www.overclockers.co.uk/showproduct.php?prodid=GX-236-AS

and a zalman cnps9900-nt cpu cooler.

Is there any chance that someone could help me with my OC?
 
What's the RAM's model number? Some RAM sticks may need 1.65v instead of 1.5v for 1600mhz, but it depends on the RAM you have.
 
Orcvader said:
What's the RAM's model number? Some RAM sticks may need 1.65v instead of 1.5v for 1600mhz, but it depends on the RAM you have.
Click to expand...

Ahh i think you might be right about the voltage, ive seen someone mention it on the web, 1.6v. Should i give that a whirl?
 
Yup, googling shows that if you want to run the RAM at 1600mhz, you must set the voltage to 1.65v. Good luck on getting it stable :).
 
Set Overclock Mode to { Optimized ]
Set Spread Spectrum to { Disabled }

Set Memory Clock to { 800 Mhz DDR3_1600 }
Set DRAM Voltage to { 1.65 volts }

Set Memory Controller Mode to { Unganged }
Set Memory Timings to 6-8-6-24 (CL-TRCD-TRP-TRAS)
Set MA Timing to { 2T }
 
Prime95 can stress test three parts of your computer: the CPU, the motherboard RAM, and the CPU/RAM interface. On an Athlon 64, the motherboard RAM is connected directly to the CPU. So with an Athlon 64, the CPU/RAM interface is a memory controller built into the CPU. On most other CPUs, the RAM is connected to a northbridge chip on the motherboard which is connected to the CPU through the front side bus. So on those CPUs, the CPU/RAM interface is the front side bus. All kinds of Prime95 torture tests stress the CPU. Both the in-place large FFTs test and the blend test also test the CPU/RAM interface while the CPU is under stress. You shouldn't use Prime95 as a RAM test. It's just not as thorough as something like MemTest86. Real memory testers run carefully selected test patterns to maximize the chances of finding a problem and Prime95 doesn't do that. Prime95 is primarly used to find unstable CPUs and to test your CPU/RAM interface while the CPU is under stress.
 
Davefran said:
Prime95 can stress test three parts of your computer: the CPU, the motherboard RAM, and the CPU/RAM interface. On an Athlon 64, the motherboard RAM is connected directly to the CPU. So with an Athlon 64, the CPU/RAM interface is a memory controller built into the CPU. On most other CPUs, the RAM is connected to a northbridge chip on the motherboard which is connected to the CPU through the front side bus. So on those CPUs, the CPU/RAM interface is the front side bus. All kinds of Prime95 torture tests stress the CPU. Both the in-place large FFTs test and the blend test also test the CPU/RAM interface while the CPU is under stress. You shouldn't use Prime95 as a RAM test. It's just not as thorough as something like MemTest86. Real memory testers run carefully selected test patterns to maximize the chances of finding a problem and Prime95 doesn't do that. Prime95 is primarly used to find unstable CPUs and to test your CPU/RAM interface while the CPU is under stress.
Click to expand...

While that may be true, I do find the blend test in Prime does seem to find errors faster than Memtest, but I guess it could vary between everyone's setup. So testing with both could be a good idea if you really want to sure the RAM is stable.
 
Thanks for the help guys, haven't ran a stability check on my system or memory yet, will do that soon-ish. So far the PC has been very stable, running a FPS game for over 3 or so hours. Very pleased with the OC, and I shall try and run both aforementioned stability tests. Cheers guys.
 
Hey fellas, ran both tests for about 4 hours each, blend on prime95 and used memtest, no errors whatsoever.

However, i have experienced two blue screens, though not fatal, kind of irked me, my system must not be stable.
The annoying thing was that no minidumps were made for these blue screens.
 
Mine's the opposite. I can run Prime for 9 hrs before I stopped it but Battlefield Bad Company 2 crashes my system.
 
Prime95 is pretty over rated as a stability tester imho, LinX is harder on the CPU and memory as you can load it to a set number. But really gaming and 3DMark/Heaven loops are a better overall test.
 
Speed said:
Prime95 is pretty over rated as a stability tester imho, LinX is harder on the CPU and memory as you can load it to a set number. But really gaming and 3DMark/Heaven loops are a better overall test.
Click to expand...

Ahh right, so what should my next course o action be?
 
Diable Auto Restart first. On W7 its Computer > Properties > Advanced System Settings > Startup and Recovery Settings > Untick and then ok.

Then when you get another BSOD note down the code and files mentioned or take a photo. Codes like 0x0000124 mean a lack of vcore as an example.

Run LinX as admin and click the all memory button. See if it passes that for say 120 Minutes, if you get a BSOD let us know what it is.

LinX Download Link: http://www.youwatched.com/datajay/linx(0.64).zip
 
Cheers mate, have disabled automatic restart, will look out for the next bsod and note what i can, and will let you know how it goes.

Thanks
 
hey guys, so guess what, i finally got another bsod, while using something similar to youtube, different type this time.

Here's what i took down,
system service exception
0x0000003b

system dump failed blah blah 0xc000001

I couldn't remember what else i saw, but its really frustrating.

I have now reverted to 1333MHz ram now, i feel like giving up with OCing the ram to 1600Mhz.
 
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