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Haswell Overclocking Guide [With Statistics] - Page 858

post #8571 of 19539
Can't stabilize 4.8ghz for the life of me.

1.36 vcore in bios
2.00 vccin
34 uncore at 1.024
RAM 1600 at 9-9-9-25 1.5v
vcore and uncore aren't on adaptive voltage
Everything else is auto

At least one Prime worker fails within seconds of starting stress testing, every time.
post #8572 of 19539
Quote:
Originally Posted by blaze2210 View Post

Did you raise the vcore and vrin at the same time?

No i didn't and i tried lower and higher values and got frustrated when all the sudden the cpu was acting really unstable. But it could be a wall for me at 44 perhaps ,, and that 45 actually really needs alot more voltage but could stay fairly stable for a while. I will try again tho and hope for the best.
post #8573 of 19539
Quote:
Originally Posted by lombardsoup View Post

Can't stabilize 4.8ghz for the life of me.

1.36 vcore in bios
2.00 vccin
34 uncore at 1.024
RAM 1600 at 9-9-9-25 1.5v
vcore and uncore aren't on adaptive voltage
Everything else is auto

At least one Prime worker fails within seconds of starting stress testing, every time.

Oh you want to stabilize with prime? Which version? I think most are in agreement for using x264 or similar stuff now

Manually set uncore to 33x, 1.15v. If it fails workers, give it 1.38vcore, 2.15 vrin and work from there. You probably can't cool prime with that without delid though
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post #8574 of 19539
Quote:
Originally Posted by Rob78 View Post

hehe well i got both some 101 and 124 at that time. I tried to raise vcore and input more but still got BSOD. Thats a major problem with haswell to pin down why its actually crash at some point when you have been pretty stable for 2-3 weeks like i was. However passing 60 rounds with 44x was great so now i can more carefully try 45x again in small steps and perhaps my fresh OS install might help. Btw im wondering if x264_Benchmark_HD_v5.0.1 are using AVX ?

Yes, x264 uses avx2, just not in the same way that linpack does

If you was getting both 101 and 124, i would add 0.02vcore - See if it goes away, or what bluescreens pop up then. It's important to only change one variable at a time, and to eliminate multiple potential causes for 124, to set uncore down - and to eliminate multiple causes for 101, to set RAM frequency down and have SA/DIO/AIO on auto, if you manually set them
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post #8575 of 19539
Quote:
Originally Posted by Cyro999 View Post

Yes, x264 uses avx2, just not in the same way that linpack does

If you was getting both 101 and 124, i would add 0.02vcore - See if it goes away, or what bluescreens pop up then. It's important to only change one variable at a time, and to eliminate multiple potential causes for 124, to set uncore down - and to eliminate multiple causes for 101, to set RAM frequency down and have SA/DIO/AIO on auto, if you manually set them


Yes i think it needs more vcore aswell for x45 but how much more i must find out. Ok so i could probably skip AIDA64 then and only use x264 and games like BF3 and BF4 for stability test? BF4 stresses more than BF3 i assume ?
post #8576 of 19539
Quote:
Originally Posted by Cyro999 View Post

Oh you want to stabilize with prime? Which version? I think most are in agreement for using x264 or similar stuff now

Manually set uncore to 33x, 1.15v. If it fails workers, give it 1.38vcore, 2.15 vrin and work from there. You probably can't cool prime with that without delid though

Using version 28.3. My temps aren't as bad with Prime as they are with older linpack stuff like IBT, etc. Long as temps aren't 80c or more on load I'm satisfied. BSOD with x264 using previous settings, I'll try what you suggested.
post #8577 of 19539
Quote:
Originally Posted by holyking View Post

May ask, did you over clock your ram at the time? I always though thouse analog I/0 setting is for ram oc. I am hitting the well try to stay at 4.9.. keep bosd with 101. I tested vrin up to 2.3. No luck

I only overclocked (actually tightened the RAM timings), once I determined a stable 4.6GHz overclock.

While initially stable in x264, daily use proved otherwise while using the computer. The computer once froze on the desktop and once in game playing MetroLL. It lead me to believe that the RAM timings were off, since the 4.6GHz overclock was stable; tested a dozen times or so benching with x264, playing games, surfing and writing articles for my Hawaiian build thread (in sig).

So after the tightening of the RAM and the noted freezes, RAM was my #1 suspect. Since I loosened one of the RAM timings, it has now passed 2 x264 tests, surfing and playing MetroLL with no problems.
 
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RAMHard DriveHard DriveOptical Drive
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post #8578 of 19539
Quote:
Originally Posted by lombardsoup View Post

Can't stabilize 4.8ghz for the life of me.

1.36 vcore in bios
2.00 vccin
34 uncore at 1.024
RAM 1600 at 9-9-9-25 1.5v
vcore and uncore aren't on adaptive voltage
Everything else is auto

At least one Prime worker fails within seconds of starting stress testing, every time.

I can't either, though I am Very happy with 4.666 or 4.7

However, I may not need it, but I always have the vcore and uncore voltage set to 1.39 NO HIGHER...your uncore voltage is very low at 1.024

Also in the Digi+ section you have to max everything out Extreme Extreme Extreme 140% for current capability 8 for load-line also consider loosening timings if you are not at defaults
post #8579 of 19539
Quote:
Originally Posted by D-Dow View Post

I can't either, though I am Very happy with 4.666 or 4.7

However, I may not need it, but I always have the vcore and uncore voltage set to 1.39 NO HIGHER...your uncore voltage is very low at 1.024

Also in the Digi+ section you have to max everything out Extreme Extreme Extreme 140% for current capability 8 for load-line also consider loosening timings if you are not at defaults

That's the other thing I wanted to ask about. Have no idea what values to set in the Digi+ section, board is MSI z87-g43 gaming
post #8580 of 19539
Quote:
Originally Posted by Gunderman456 View Post

I only overclocked (actually tightened the RAM timings), once I determined a stable 4.6GHz overclock.

While initially stable in x264, daily use proved otherwise while using the computer. The computer once froze on the desktop and once in game playing MetroLL. It lead me to believe that the RAM timings were off, since the 4.6GHz overclock was stable; tested a dozen times or so benching with x264, playing games, surfing and writing articles for my Hawaiian build thread (in sig).

So after the tightening of the RAM and the noted freezes, RAM was my #1 suspect. Since I loosened one of the RAM timings, it has now passed 2 x264 tests, surfing and playing MetroLL with no problems.

When you OC the RAM, you might also need to increase the VRIN or Vcore to compensate the RAM OC....I got my PC stable at 4.6ghz with the RAM at 1600mhz (default speed), then eventually activated the XMP profile and OC'd the RAM to 2133. After activating the XMP profile, I ended up needing to give the VRIN and Vcore a slight increase to become stable again.
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