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Haswell Overclocking Guide [With Statistics] - Page 1827

post #18261 of 19637
Quote:
Originally Posted by Unknownm View Post

thank you! compared my bios settings to the link and found Two differences:

SVID Communication = Auto | Website: Disabled
Filter PLL: Auto | Website: Enabled

since both are on auto they could of already been on the recommend setting but to be safe I set them both. The only option I'm unclear about is:

"VR 12VIN OCP Expander"

Maximum value of 63a (assuming amps) and currently set on Auto. Could selecting higher number give better overclock? will setting to 63a fry or kill my board? or maybe leave it on auto?

I'm assuming you would multiply that by your input voltage. As long as your mobo and cpu cooler can handle the heat you will be fine. My cpu package hits 118W while stressing. Assuming you were at 2.0Vinput x 63A, you would be at max 126W for your cpu package. That is purely a guess though.
post #18262 of 19637
Quote:
Originally Posted by tdbone1 View Post

when overclocking haswell cpu and adjusting the vccin does it make the VRM's get hotter?
when using hwinfo64 and look at "VR T1" and "VR T2" as in this pic im idle at 64C on both those.
when running P95 i can seasily see it climb to 100C




is this normal?

here is a nice table i found about the Z97 Chipsets
http://cdn.overclock.net/0/07/071b2d45_1.png

my board is the Asus Z97I-Plus

i just wonder if we really have to be careful with that vccin setting and if so does it directly affect the VR T1 and VR T2 temperatures and if so at what point do we need to be concerned?

thanks

VRM temps are not a problem on many boards but yours sounds hot.

If you run Prime95 small FFT or linpack, you'll get much much higher power draws than other loads which will directly affect VRM temps too
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post #18263 of 19637
Vdroop Offset Control,is it best to leave this setting on auto,mine is on auto and with 4.8 at 1.255v set in bios,when stressing vcore hits 1.280v.I took it off auto and set it to the med setting and blue screend when stressing,its ok at Extreme +95% setting though when stressing.Just curious on whats best for this setting..
post #18264 of 19637
asus z97i-plus and delid 4770k with clu between die and ihs and clu between ihs and h100i pump block.
xmp profile selected in bios BUT with NO "Asus Multicore Enhancement"

42x cpu multi
39x cache
(i cant remember if vccin is auto or 1.9)

1st pic is idle


2nd pic occt cpu no linpack no avx (5mins)


3rd image occt cpu with linpack, avx and 90%memory (5mins)


4th pic p95 small fft (5mins)


5th pic BF4 1080P ultra


questions:
cpu package 77 watts (this goes alot higher if i enable asus multi-core enhancement.
temps look great i think (at least for cpu)

main concern is those vrm's at 100C
i have h100i in bitfenix case with rad mounted at top
i have 2 of the original fans lined up in push pull
i have 2 of the bitfenix fans also lined up in push pull
(lined up = on top of each other and not both corsair on bottom or on top)
sucking in air from top and blowing onto motherboard
200mm fan in front of case exhausting out from
140mm fan exhausting out back
vcard = gtx 670 ftw exhausting out back but not in use when running these tests of course.

ok so can anyone tell me anything about my data?
i would like to go higher frequency then my 4.2ghz
to get to 4.4GHz i think i was at 1.3875v and i dont have that data saved.

got to be a way to get there with this setup and the delid and the clu with the h100i

anyhow the VRM temps @ 100C ???
thanks for any info anyone can tell about the data provided in the pics
Edited by tdbone1 - 10/21/15 at 9:31am
    
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post #18265 of 19637
Quote:
Originally Posted by NIK1 View Post

Vdroop Offset Control,is it best to leave this setting on auto,mine is on auto and with 4.8 at 1.255v set in bios,when stressing vcore hits 1.280v.I took it off auto and set it to the med setting and blue screend when stressing,its ok at Extreme +95% setting though when stressing.Just curious on whats best for this setting..

It should be at a moderately high level (not max but probably above 50%).

It's not for Vcore. It's for VCCIN.
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post #18266 of 19637
Guys I need a bit of help.

Previously had issues with my 4670k - I'd keep running into an eventual random restart (bluescreen event log- but no real bluescreen ever, no rounding errors ever either) after 5-7 hours of prime95 with AVX. Round off checking etc always enabled.
Settings :
* 1.3VCore
* 1.92 VCCIN
* 4.6GHz
* 81-82C CPU temp on full load.

Moving the VCore and/ or VCCIN up had a detrimental effect on surviving Prime95. It'd only crash sooner.

I thought I had a sad chip. Moving it down to 4.5GHz at these voltages worked nicely but still crashed at the 20 hour mark. Bumping the voltages up meant crashing sooner.
Now I've got a 4790k - I'm stuck with the same issue- moving the VCore makes it crash sooner. VCCIN going up results is potentially longer stress test stability.

Settings :
* 1.29 VCore
* Variable VCCIN
* 4.7GHz
* 82-84C CPU temp on full load.

For example, with VCore at 1.29V
VCCIN_-_-_-_-_-_time survived
1.93_-_-_-_-_-_-_-_3 hours
1.95_-_-_-_-_-_-_-_5 hours
1.97_-_-_-_-_-_-_-_7 hours

When I did the same thing, this time with the i7, with VCore at 1.31V, and VCCIN anywhere between 1.90 and 1.99 - crashes came quickly, within an hour every time, VCCIN seem to have no impact.

Now while this is not exhaustive, I don't think I should be pumping in such major increments in VCCIN and getting such useless returns. Or does just 1.29VCore warrant such a high VCCIN ( I heard .4-.5 V above VCore is more than enough) ?

I have a decent PSU and CPU cooler, the board is an 8-phase board.
If the i5 had the same issue as the i7, it can't be power delivery cause the i7 definitely pulls more power. It should crap out earlier than 4.7GHz.

What am I missing? What do I fiddle with next?

4.5 on the i5 and 4.6 on the i7 are much more stable ~ 20 hours prime. I haven't tested longer but it did crash once so I'm not sure if it's 23x7 stable quite yet...

EDIT : Other MISC settings -
EIST on / off - saw no change so went back to on
Multi core enhanced turbo - off
C states- all ON and I intend keeping them on
No fast boot + retrain RAM on every boot is turned on
Adaptive /transient boost is off
I'm using offset modes for VCore ~~ So for 1.29 Vcore It's 1.26VID and + .30 offset . I think this is a better approach to transient boost. And sensible.
LLC- cannot find it in the BIOS
VDroop control - 50% moderate
PC is run open case with the air con at 24C. No fans on the mosfet. Decent heatsink should be OK really.
RING voltage is at + 0.050 and Mult. is at x35
All other voltages in the system, SA etc. are at + .050
Edited by 0razor1 - 10/21/15 at 11:13am
post #18267 of 19637
Quote:
Originally Posted by 0razor1 View Post

Guys I need a bit of help.

Previously had issues with my 4670k - I'd keep running into an eventual random restart (bluescreen event log- but no real bluescreen ever, no rounding errors ever either) after 5-7 hours of prime95 with AVX. Round off checking etc always enabled.
Settings :
* 1.3VCore
* 1.92 VCCIN
* 4.6GHz
* 81-82C CPU temp on full load.

Moving the VCore and/ or VCCIN up had a detrimental effect on surviving Prime95. It'd only crash sooner.

I thought I had a sad chip. Moving it down to 4.5GHz at these voltages worked nicely but still crashed at the 20 hour mark. Bumping the voltages up meant crashing sooner.
Now I've got a 4790k - I'm stuck with the same issue- moving the VCore makes it crash sooner. VCCIN going up results is potentially longer stress test stability.

Settings :
* 1.29 VCore
* Variable VCCIN
* 4.7GHz
* 82-84C CPU temp on full load.

For example, with VCore at 1.29V
VCCIN_-_-_-_-_-_time survived
1.93_-_-_-_-_-_-_-_3 hours
1.95_-_-_-_-_-_-_-_5 hours
1.97_-_-_-_-_-_-_-_7 hours

When I did the same thing, this time with the i7, with VCore at 1.31V, and VCCIN anywhere between 1.90 and 1.99 - crashes came quickly, within an hour every time, VCCIN seem to have no impact.

Now while this is not exhaustive, I don't think I should be pumping in such major increments in VCCIN and getting such useless returns. Or does just 1.29VCore warrant such a high VCCIN ( I heard .4-.5 V above VCore is more than enough) ?

I have a decent PSU and CPU cooler, the board is an 8-phase board.
If the i5 had the same issue as the i7, it can't be power delivery cause the i7 definitely pulls more power. It should crap out earlier than 4.7GHz.

What am I missing? What do I fiddle with next?

4.5 on the i5 and 4.6 on the i7 are much more stable ~ 20 hours prime. I haven't tested longer but it did crash once so I'm not sure if it's 23x7 stable quite yet...

Try raising vcore ~0.06v over the last 100% stable multiplier and then playing with VCCIN a lot - both up and down. Seen people reporting as low as 1.55 - 1.7 with LLC makes them stable at higher OC's, while some seem to need 2.05+ sometimes.
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post #18268 of 19637
Indeed, I will. I added some information above !

Quite strange - same issue with the i5 and i7 !!

So all in all I'll push VCore above 1.3 and drop VCCIN to ? What's a good place to start?
And where to I push VCCIN to ?

Given the fact that the whole voltage split up happens in the CPU ( and it being a big failure of tech. , , thanks Intel), I'm not too keen or throwing unnecessary volts at this part.

Are there *any* other parameters worth looking into?

One more minor mention - my clocks may jump +/- 100MHz in HWMON min/max even with a continuous P95 load. Is this normal ?

For a 4.6GHz OC, I may end up seeing 4.7 max and 4.5 min ?
post #18269 of 19637
strange.
when i post info with all the data logged everyone just skips me.
i provide almost complete data to make it easier to diagnose but still....
ill just hang tight and hope that the next person to reply to me dont just read the last page of this thread otherwise my questions will just be skipped over.
    
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post #18270 of 19637
Quote:
Originally Posted by tdbone1 View Post

strange.
when i post info with all the data logged everyone just skips me.
i provide almost complete data to make it easier to diagnose but still....
ill just hang tight and hope that the next person to reply to me dont just read the last page of this thread otherwise my questions will just be skipped over.

If you took just a couple seconds to google your question or do a search on this website you would see that mobo and gpu VRMs are rated to up to 125-130C.
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