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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 103

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post #1021 of 9460
Great thread - excellent resource. So... I've been running happily at 4.6 and pop to 4.8 when i know i need a little extra. All settings where worked out with help from the OP and several members.

I'm taking the plunge to water cooling, not really for the 2700K - the H80 does just fine with that, more for the screaming crossfire 7970's which will get very loud especially when OCd . I'll pull the whole system and water cool the cpu and two graphics cards. so what if anything do i need to set in the bios once I water cool the CPU and do not have any cpu fan speed reported to bios? will this cause any problems?
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post #1022 of 9460
So... I'm reading about vid, vcore, etc... and I'm still really confused.

1) I find the VID by looking at Core Temp, right? But why does the VID go up during load? I thought it was supposed to be a constant based on the multiplier?

2) When it talks about "max of 1.55 V", is that the Core Voltage that CPU-Z shows? or vcore that hwmonitor shows? Or do I add the offset I set in the bios to that to get 1.55? To get anywhere near 1.55, I would have a very big offset... more than 0.2 Is that right?
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post #1023 of 9460
Thread Starter 
Quote:
Originally Posted by taotree View Post

So... I'm reading about vid, vcore, etc... and I'm still really confused.

1) I find the VID by looking at Core Temp, right? But why does the VID go up during load? I thought it was supposed to be a constant based on the multiplier?

2) When it talks about "max of 1.55 V", is that the Core Voltage that CPU-Z shows? or vcore that hwmonitor shows? Or do I add the offset I set in the bios to that to get 1.55? To get anywhere near 1.55, I would have a very big offset... more than 0.2 Is that right?

1. Don't worry too much about VID.

2. CPU-Z and HWMonitor should report around the same for vCore. Those programs should NEVER report a higher number than 1.55v at any time. It should take a big offset to reach that number.
post #1024 of 9460
Quote:
Originally Posted by Jpmboy View Post

Great thread - excellent resource. So... I've been running happily at 4.6 and pop to 4.8 when i know i need a little extra. All settings where worked out with help from the OP and several members.
I'm taking the plunge to water cooling, not really for the 2700K - the H80 does just fine with that, more for the screaming crossfire 7970's which will get very loud especially when OCd . I'll pull the whole system and water cool the cpu and two graphics cards. so what if anything do i need to set in the bios once I water cool the CPU and do not have any cpu fan speed reported to bios? will this cause any problems?

If there's an option for monitoring the CPU fan(s), turn it off and that should be it. Otherwise lots of motherboards won't prevent bootup when you don't have a CPU fan attached.
    
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post #1025 of 9460
Thank you for this guide it was really helpful. It took me all weekend but I finally got my chip stable at 4.5 with 1.306 volts. It passed 10.5 hours prime95 blend and that's good enough for me.I might even be able to drop it to 1.28 and be stable I will check that this weekend. My limiting factor right now is my H60 cooler I am hitting the high 80's at 1.306 and I was at 100c with 1.36 volts. I will be picking up a h100 this week and see if I can these temps down a little.


The biggest problem I think I had was my ram , I have gskill sniper ddr3 1600mhz 8 gigs and they are low voltage ram 1.25 volts. It appears my motherboard wasn't happy with that and I think that's the main reason I was failing all my tests in 1-2 hours. I turned them up to 1.3 and passed for over 10 hours. Very happy with the results.


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post #1026 of 9460
Not sure if this helps out, but I set my bios exactly how the guide is. I'm running at 4.5 with no issues. I personally wouldn't increase volts for 100mhz or 200mhz unless u r trying to reach some benchmark. Make sure your ram is set to the profile, even if it says "auto" actually put all the values in. I would do a reset and start over.
One thing to add, when I first tried 4.5, I got a bsod, even when I increased volts past what I wanted. I set it to 4.4 and did all my stress tests, OCCT for 1 hour, and I ran prime for 10+ hours. All was good. I THEN, changed to 4.5 and it worked. Didn't increase volts or change a single setting. I stressed it again, OCCT for 1 hour, and this time, prime for almost 12 hours. All passed.
Not sure if that was the trick, but it seems like u lost some hair and tried everything else.
Good luck.
(Asrock z75, i5 3570k, mushkin extreme 16gb, 212 evo, all air)
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post #1027 of 9460
I'm overclocking my 3570k with all bios settings as per guide and:

Multiplier: 50 Offset: 0.215 LLC: 3 PLL: 1.775
Core Temp shows VID: 1.4312 CPU-Z shows Core Voltage: 1.400

For casual use, I haven't seen any problems yet. When running Prime95, it runs for 15 minutes with temps in the 70's and 80's. Then right around the 15 minute mark, the temps shoot up. I have Core Voltage auto shutdown at 95 C and it shutdown. It's done this twice, so Prime95 must be doing something at that point?

Are the first 15 minutes of Prime95 just warmup and the real test starts at 15 minutes in? I'm just wondering if some new thermal paste and fans might be enough to keep the temps down, or if actually there is a much bigger hurdle.
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post #1028 of 9460
Quote:
Originally Posted by taotree View Post

I'm overclocking my 3570k with all bios settings as per guide and:
Multiplier: 50 Offset: 0.215 LLC: 3 PLL: 1.775
Core Temp shows VID: 1.4312 CPU-Z shows Core Voltage: 1.400
For casual use, I haven't seen any problems yet. When running Prime95, it runs for 15 minutes with temps in the 70's and 80's. Then right around the 15 minute mark, the temps shoot up. I have Core Voltage auto shutdown at 95 C and it shutdown. It's done this twice, so Prime95 must be doing something at that point?
Are the first 15 minutes of Prime95 just warmup and the real test starts at 15 minutes in? I'm just wondering if some new thermal paste and fans might be enough to keep the temps down, or if actually there is a much bigger hurdle.

You're at 1.4312 V. Really high temperatures are to be expected, especially if you're not using really advanced cooling.
post #1029 of 9460
Quote:
Originally Posted by taotree View Post

I'm overclocking my 3570k with all bios settings as per guide and:
Multiplier: 50 Offset: 0.215 LLC: 3 PLL: 1.775
Core Temp shows VID: 1.4312 CPU-Z shows Core Voltage: 1.400
For casual use, I haven't seen any problems yet. When running Prime95, it runs for 15 minutes with temps in the 70's and 80's. Then right around the 15 minute mark, the temps shoot up. I have Core Voltage auto shutdown at 95 C and it shutdown. It's done this twice, so Prime95 must be doing something at that point?
Are the first 15 minutes of Prime95 just warmup and the real test starts at 15 minutes in? I'm just wondering if some new thermal paste and fans might be enough to keep the temps down, or if actually there is a much bigger hurdle.
prime is set default to run a different size FFT every 15 minutes, the second one is a small FFT(8k?) and small FFT's stresses the temperatures/cpu most, where as big FFT's test the memory controller ect
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post #1030 of 9460
Just so I know, are u suppose to run all 3 prime settings? I ran them all (small, large, blend) for several hours before i declared my stability.
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