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post #1161 of 7219
Quote:
Originally Posted by Jpmboy View Post

yeah, I know... it's more like, he is having lots of problems with the OC.. why not start with a simple 100x and then once ya have a stable OC baseline, change the gear ratio if needed for ram freq reasons.
...
Exactly my sitch. I couldn't get a favorable DIMM frequency on 100 strap. Hopefully the TZs arriving tomorrow will be more strap-100 DIMM frequency friendly thumb.gif
post #1162 of 7219
I had problems booting my RAM at 100MHz strap, at 125 they work fine sonic.gif

+
Yet they still act up sometimes, they are not QVL so I am saving cash for a quad kit of TZ's.

What could it be if the PC freezes under realbench and reboots within a second?
No bluescreen, no bsod summary after reboot mad.gif
Edited by Martin778 - 7/7/16 at 3:02pm
post #1163 of 7219
Quote:
Originally Posted by Martin778 View Post

I had problems booting my RAM at 100MHz strap, at 125 they work fine sonic.gif

+
Yet they still act up sometimes, they are not QVL so I am saving cash for a quad kit of TZ's.

What could it be if the PC freezes under realbench and reboots within a second?
No bluescreen, no bsod summary after reboot mad.gif

assuming it is not a faulty PSU or graphics subsystem... that's typical of ram, aka " a ram blackout". Can look exactly like a PSU OCP. smile.gif
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post #1164 of 7219
PSU shouldn't be an issue here - a 2 months old EVGA 1200W P2.

I tracked it down to being a RAM lockup. When testing up to 4GB in RB all went fine, with all 16GB it froze.

Lowered to 2792MHz and now it passes 1 hour RB with full 16GB used and CPU at 127x34.
Edited by Martin778 - 7/7/16 at 4:12pm
post #1165 of 7219
Quote:
Originally Posted by Martin778 View Post

I had problems booting my RAM at 100MHz strap, at 125 they work fine sonic.gif

+
Yet they still act up sometimes, they are not QVL so I am saving cash for a quad kit of TZ's.

What could it be if the PC freezes under realbench and reboots within a second?
No bluescreen, no bsod summary after reboot mad.gif

I've experienced freezes when overdoing the cache speed.
post #1166 of 7219
Quote:
Originally Posted by djgar View Post

I've experienced freezes when overdoing the cache speed.

^^ This. May well be cache-ram interface (IO). thumb.gif
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post #1167 of 7219
Quote:
Originally Posted by Jpmboy View Post

^^ This. May well be cache-ram interface (IO). thumb.gif
Any memory corruption can take a millisecond, an hour or a month to finally bring your machine down... That's why running stressapp is so important. Aida's memory test doesn't seem to catch anything close to what stressapp does in memory/cache sub system.

I was, by all measures in windows completely stable 50+mV lower than I am now. No crashes or freezes, run for hours in bench/games. Booted into linux and stress app found issues right away. The system slowly started to suffer from bit-rot as I ran. First a frozen window, then an app that won't and eventually a mouse that would not respond. Cranked SA and cache voltage in separate runs with memory at stock and then OC'd until all those went away and its been smooth sailing since then with some good solid compute hours logged.
post #1168 of 7219
Quote:
Originally Posted by cekim View Post

Any memory corruption can take a millisecond, an hour or a month to finally bring your machine down... That's why running stressapp is so important. Aida's memory test doesn't seem to catch anything close to what stressapp does in memory/cache sub system.

I was, by all measures in windows completely stable 50+mV lower than I am now. No crashes or freezes, run for hours in bench/games. Booted into linux and stress app found issues right away. The system slowly started to suffer from bit-rot as I ran. First a frozen window, then an app that won't and eventually a mouse that would not respond. Cranked SA and cache voltage in separate runs with memory at stock and then OC'd until all those went away and its been smooth sailing since then with some good solid compute hours logged.

GSAT is very good, but unless the use environment is the same OS, it's relevance to windows is questionable with regard to other substructures IMO. My experience has been more the other way, all is good in MInt with GSAT and windows (HCi memtest or what ever) will pop errors due to cache or vcore. GSAT does the ram very well (and quickly), but only ram. I've not had an HCi memtest OC fail linux mint running GSAT... yet. The active cores and package temps under each kinda shows the load difference to some extent.
Quote:
Originally Posted by Martin778 View Post

PSU shouldn't be an issue here - a 2 months old EVGA 1200W P2.

I tracked it down to being a RAM lockup. When testing up to 4GB in RB all went fine, with all 16GB it froze.

Lowered to 2792MHz and now it passes 1 hour RB with full 16GB used and CPU at 127x34.
that's a nice oc on that 6950X (the lapped one??)
Edited by Jpmboy - 7/7/16 at 5:26pm
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post #1169 of 7219
Quote:
Originally Posted by Jpmboy View Post

GSAT is very good, but unless the use environment is the same OS, it's relevance to windows is questionable with regard to other substructures IMO. My experience has been more the other way, all is good in MInt with GSAT and windows (HCi memtest or what ever) will pop errors due to cache or vcore. GSAT does the ram very well (and quickly), but only ram. I've not had an HCi memtest OC fail linux mint running GSAT... yet. The active cores and package temps under each kinda shows the load difference to some extent.
I see exactly the same, its only useful for memory, but very useful for memory.
post #1170 of 7219
Thread Starter 
I notice that as I bump up the VCCIO up the number becomes red higher than 1.2. Now I know that System agent-VCCIO should be ~0.05. Is it safe to go up with VCCIO when I have my system agent around 1.275 or 1.3?

I'm having a hard time getting my RAM stable at 3200mhz (what it's rated for). I tried getting the system agent up to 1.3 while gradually adding, and I keep getting errors on HCI memtest. I wonder if I need to add more dram voltage than the rated 1.35. Default 2133mhz goes error free on memtest.
Edited by greg1184 - 7/7/16 at 10:24pm
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