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post #21051 of 22515
Pretty sure sa and io voltages have no effect on temps.

Once you get the cooler off go ahead and delid.
Dorje
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CPUMotherboardGraphicsRAM
4690k Gigabyte z97x-sli MSI TF 280 G Skill Sniper 1600/9 
Hard DriveCoolingOSMonitor
Seagate 4 tb hybrid Corsair h80i Windows 8.1 SE39UY04 
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EVGA NEX-G 750W S340 (white) Bloody ZL5A Razer Blackshark 
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Dorje
(12 items)
 
  
CPUMotherboardGraphicsRAM
4690k Gigabyte z97x-sli MSI TF 280 G Skill Sniper 1600/9 
Hard DriveCoolingOSMonitor
Seagate 4 tb hybrid Corsair h80i Windows 8.1 SE39UY04 
PowerCaseMouseAudio
EVGA NEX-G 750W S340 (white) Bloody ZL5A Razer Blackshark 
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post #21052 of 22515
Quote:
Originally Posted by jdorje View Post

Pretty sure sa and io voltages have no effect on temps.

Once you get the cooler off go ahead and delid.

Easier said than done. Other than not having the tools, I'm scared ****less when thinking about doing it. tongue.gif

But seriously, I think I'll do it at some point... I just have to make sure I don't mess it up. smile.gif
post #21053 of 22515
Funny story: G.Skill uses 2 different chips for the RAM product I got, Hynix BFR and Samsung HYH9. Funnier story: The two chips are easily mistaken for one another. Funniest story: I've been OCing Samsung chips with Hynix-style voltages and timings.

Everything is behaving itself much better since going to more Samsung-friendly secondaries and voltages.
post #21054 of 22515
Tertiaries, both timings and voltages, play a weird role in stability.

4.6ghz at 35mv lower than it's ever held before.



The key is tWRRD.

Default set is 18. All other settings the same, WRRD 18 hard reboots after 2 minutes of AIDA CPU+FPU. 15 and here it is happily chugging along 15 minutes later.

Went with ddr3-2200 as it's the highest my IMC and RAM will POST at 1t with no fiddling or complaints, and the RAM's 1.64v required for tight timings matches well with what my IMC wants.
post #21055 of 22515
Quote:
Originally Posted by MIXEDGREENS View Post

Funny story: G.Skill uses 2 different chips for the RAM product I got, Hynix BFR and Samsung HYH9. Funnier story: The two chips are easily mistaken for one another. Funniest story: I've been OCing Samsung chips with Hynix-style voltages and timings.

Everything is behaving itself much better since going to more Samsung-friendly secondaries and voltages.

That's interesting. How did you figure out which chip your G skill RAM had? Is it based on the set's part number? And then where did you find the different voltages for those two kinds of chips?

Edit: when you say 35mv lower are you talking about your vcore or something else?
Edited by boomerzangs - 8/4/16 at 10:09am
post #21056 of 22515
Quote:
Originally Posted by boomerzangs View Post

That's interesting. How did you figure out which chip your G skill RAM had? Is it based on the set's part number? And then where did you find the different voltages for those two kinds of chips?

Edit: when you say 35mv lower are you talking about your vcore or something else?

There's a website http://ramlist.i4memory.com/ddr3/ that seems to have died that had user submissions documenting the brand and model of chip used in various sets of RAM. If I weren't an idiot, I'd have made the effort to look at the serial # on my sticks to decipher which brand I had in my set. Instead, I just tried out some timings from a review of my set in which the reviewer had the Hynix brand which worked and ran with it.

Unfortunately I figured the voltages out through sheer experimentation after getting some guidelines from assorted forums on memory overclocking. Long story short: Hynix chips scale with vDIMM to roughly 1.9 and like/tolerate higher IO voltages. Samsung HYH9s (cheaper and not as good as HCH9s) peter out earlier and prefer lower IO volts. I noticed my ram gets squirrelly after 1.76v, tried to get it to hold timings tighter than cheap Hynix can, and then insulted myself a lot.

And yessir, I meant vcore. Sorry for vagueness. All auto/stock I need over 1.35 VID (1.37 vcore under load) to hold 46x. With XMP on (1600mhz 9-9-9-24) and tuned cache I can get stable right at 1.35v VID. At the moment I'm painstakingly tweaking RAM and lowering vcore as permitted + tweaking VCCIN and vRing as required, currently down to 1.315v VID. Thought I'd bottomed out until discovering WRRD's effect this morning. Doubt my entire system is stable at this vcore but I can at least take solace in knowing my final vcore will be much lower than what is required at stock.
post #21057 of 22515
Quote:
Originally Posted by MIXEDGREENS View Post

There's a website http://ramlist.i4memory.com/ddr3/ that seems to have died that had user submissions documenting the brand and model of chip used in various sets of RAM. If I weren't an idiot, I'd have made the effort to look at the serial # on my sticks to decipher which brand I had in my set. Instead, I just tried out some timings from a review of my set in which the reviewer had the Hynix brand which worked and ran with it.

Unfortunately I figured the voltages out through sheer experimentation after getting some guidelines from assorted forums on memory overclocking. Long story short: Hynix chips scale with vDIMM to roughly 1.9 and like/tolerate higher IO voltages. Samsung HYH9s (cheaper and not as good as HCH9s) peter out earlier and prefer lower IO volts. I noticed my ram gets squirrelly after 1.76v, tried to get it to hold timings tighter than cheap Hynix can, and then insulted myself a lot.

And yessir, I meant vcore. Sorry for vagueness. All auto/stock I need over 1.35 VID (1.37 vcore under load) to hold 46x. With XMP on (1600mhz 9-9-9-24) and tuned cache I can get stable right at 1.35v VID. At the moment I'm painstakingly tweaking RAM and lowering vcore as permitted + tweaking VCCIN and vRing as required, currently down to 1.315v VID. Thought I'd bottomed out until discovering WRRD's effect this morning. Doubt my entire system is stable at this vcore but I can at least take solace in knowing my final vcore will be much lower than what is required at stock.

1.9 vDIMM?! Are you using voltages that high for your current RAM overclock? And are you going for 24/7 use or for benchmarking? I only ask as I'm working toward a water cooled build with everything overclocked as much as possible for 24/7 use. So I'm trying to find a balance between what is safe, if not perfectly following the safe voltage guidelines (i.e. what I can get away with), and what can be done but shouldn't. I also have a 4 DIMM kit on the Z97 platform so from what I've gathered I'm limited to the extent to which I can overclock things.

Yeah, I'm going through their forum page by page to see if I can find my kit. It won't let me access the database (i think I have to sign up for the forum). I'm amazed at how there seems to be a never ending wealth of very specific information if you can find where to look. Still becoming literate in all of these forums, databases, and tools
post #21058 of 22515
Quote:
Originally Posted by tolis626 View Post

Thanks dude! I will definitely try asking there later! You the man! biggrin.gif

Turns out my CPU is pretty good actually. It's not golden, but it's better than average I guess. My IMC on the other hand is probably crap, so adding VCCSA and IO voltages led to the drastic decrease in VCore needed. I'm quite happy with it. May switch back to 1.26V and 4.7GHz until I resolve all issues with my cooling, but at 1.3V practically I would consider my 4.8GHz safe for 24/7 use. I may try increasing my cache multi at this point, purely for seeing the number and the increased benchies. I don't want to deviate too far from 1.2V tho.

PS : To everyone switching between adaptive and manual voltages and having problems, try rebooting once after switching and booting. I've found that if I switch from manual to adaptive (Don't know about the opposite yet) or if I change VCCIN without rebooting, it'll crash. Doesn't matter if I use stable settings, it'll crash after a while. Rebooting fixes this issue. I had found a guide mentioning this (Can try searching for it if anyone wants it, but I don't think it's this relevant) as a peculiarity of Haswell's FIVR. It may seem like a waste of time, rebooting after such changes, but it saved me a lot of frustration when testing. Having known stable settings crash is scary sometimes if you don't know this. smile.gif

Finally, not all CPUs will behave the same, so this may or may not apply to you, but it's worth knowing. As always, YMMV.

Just wanted to confirm your thoughts about 24/7 usage and overclocking. My rig in my sig below has been running 18 hours a day for the last 18 months. No degradation and no increase in volts.
No power saving features enabled. Flat speed and same volts. There are some very smart, experienced folks here and all are well worth a listen. Thanks to all of them, I've been in the 'glide path' for a year and a half. thumb.gif
post #21059 of 22515


Started reading this thread today and decided to give the ol' 4690k a shot at 5.0ghz.

1.375v success

30min cpuz stess test results

Could get temps lower but i have a silent pc and keep my rad fans at around 900rpm.

Couldn't be happier
post #21060 of 22515
Quote:
Originally Posted by boomerzangs View Post

1.9 vDIMM?! Are you using voltages that high for your current RAM overclock? And are you going for 24/7 use or for benchmarking? I only ask as I'm working toward a water cooled build with everything overclocked as much as possible for 24/7 use. So I'm trying to find a balance between what is safe, if not perfectly following the safe voltage guidelines (i.e. what I can get away with), and what can be done but shouldn't. I also have a 4 DIMM kit on the Z97 platform so from what I've gathered I'm limited to the extent to which I can overclock things.

Yeah, I'm going through their forum page by page to see if I can find my kit. It won't let me access the database (i think I have to sign up for the forum). I'm amazed at how there seems to be a never ending wealth of very specific information if you can find where to look. Still becoming literate in all of these forums, databases, and tools
No sir, no 1.9 vDIMM for me. Once I figured out I had Samsung chips in here I went for lower speed and tighter timings. Currently trying out 2200mhz cas 9 at 1.64v.

This is for 24/7 use. I've got a worst-of-the-worst stock core VID so I've been obsessively trying out any and all methods to slightly reduce vcore at a given multi and improve scaling in general. Seems like memory OC is the best place to look for improving voltage margins chip-wide, but it's definitely more of a hobby than a practical use of time.
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