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[MOD] LGA775 Support For LGA771 Xeon CPUs - Page 1194

post #11931 of 12064
Quote:
Originally Posted by schuck6566 View Post

As for DDR3 socket 775 boards, lets not forget that the 790i nvidia chipset boards handle 16Gb with jiggery/pokery, and 8Gb solid. Speeds over 1333. Here's an example in this post. http://www.overclock.net/t/1547699/790i-ultra-nvidia-chipset-still-rockin-in-2015-2016-2017-will-it-ever-die/300#post_25814249 Edit: No jiggery needed for this fella's ram! wink.gif

790i chipset is very tricky. I haven't read much about your post, but seems he was rocking 2 pairs of 4x2 gig. 8gb per module i don't think i've ever seen a board using 1 stick of ddr3.

i don't really know where is the problem with my mobo, since P5Q3 Deluxe can go over 2100mhz with ddr3 and it's the same chipset. But it seems mine is very lazy. right now i am at 1.220mhz ddr3 7,7,7,20 2T and it's just fine. i can pass memtest at 1.359mhz but at that speed it fails every blend test i throw at it.

Mobo problem? chipset problem? Memory compatibility issue?? CPU not handling well the memory controller? i don't know. But i can live at 1.220mhz.
post #11932 of 12064
Quote:
Originally Posted by Piskeante View Post

790i chipset is very tricky. I haven't read much about your post, but seems he was rocking 2 pairs of 4x2 gig. 8gb per module i don't think i've ever seen a board using 1 stick of ddr3.

i don't really know where is the problem with my mobo, since P5Q3 Deluxe can go over 2100mhz with ddr3 and it's the same chipset. But it seems mine is very lazy. right now i am at 1.220mhz ddr3 7,7,7,20 2T and it's just fine. i can pass memtest at 1.359mhz but at that speed it fails every blend test i throw at it.

Mobo problem? chipset problem? Memory compatibility issue?? CPU not handling well the memory controller? i don't know. But i can live at 1.220mhz.
790i was running the following in the post I refered to. (note that the nvidia chipset had it's OWN controller by nvidia,and low voltage ram DOESN'T play well. minimum that seems to work well is 1.65v) "The specific DDR3 kits w/ product code:

I'm running one 2 x 4GB kit of Kingston HyperX Blu
KHX1600C9D3B1K2/8GX

Along with the second 2 x 4GB kit of Kingston HyperX Genesis
KHX1600C9D3K2/8GX

Yep, that's two different kits providing solid 16GB results in an XFX 790i Ultra."
Now the nvidia's had plenty of issues of their own, but they DID manage 16Gb of ddr3. Because of the controller limits,when running the 16Gb setups,the SLI was no longer funtional and you were reduced to a single pcie2.0x16 instead of the 3 of them.wink.gif 8Gb the SLI worked fine.
post #11933 of 12064
Quote:
Originally Posted by Piskeante View Post

nice!! but a few things.

1º well, X48 boards, specially yours (in case it's yours), deal very well with ddr3 memory. So no surprise there as x48 was the flagship of the company in the enthusiast platform.

2º it surprised me that P5K64. It can be a matter of compatibility with ram, but you are ignoring one important thing: you are using a dual core Pentium extreme edition not a quad in that board P5K64, so if you put a xeon on that (in case it's possible , i don't know that), maybe the results could vary.
I bought this memory almost 5 years ago. I did not "choose" as you stated. I simply bought them. I did not care about overclocking at that moment. If i had cared, i would have asked for best compatible Ram outthere. i said and i confirm that almost all 775 ddr3 mobos are unstable over 1333mhz. That doesn't mean you cannot post over that. let's be accurate on that.
It's a bit "unfair" to say that if your board works, it's that all work. see the internet, many many many posts talking about ddr3 + 775 mobos problems. Pretty sure that are more problems than "just fine" cases like yours.

3º you are right, there is no 8gb 775 motherboards compatibility.

4º afaik, my board will handle 1,3v on the NB without any active cooling. as my ram will not post at anything over ,1360mhz, i simply don't need to actively cool the NB chipset.

Edit: your A-data ram in the P5K64 WS is not in the compatibility list supplied by Asus for that mobo
Addressing #2- When the DDR3 ram was first released on these 775 boards, it was with sticks that had voltages from 1.7 to 2.0 volts. Do you REALLY expect these newer 1.35 volt ram sticks to play well? Also, As i posted elsewhere, people like nvidia released their OWN memory controller that didn't play nice with some memory. Patriot released 2 different sets of memory,same name,same basic specs,1 had black/silver heat spreaderand ended in K,1 had green and end with KN. No where did they state which was for Nvidia. (difference is EPP2.0 and XMP) rolleyes.gif see post 313 in Laithans 790i thread for a way around it.wink.gif
Edit: I think ALOT of the issues with the ddr3 are either too much voltage on ram not made for it,too little voltage ram for a board that's wanting more,or trying to clock the ram too high. (I grant that above 1333 for the ram is iffy/difficult in most cases.it takes alot of work & sometimes isn't possible)
Edited by schuck6566 - 4/17/17 at 11:02am
post #11934 of 12064
Quote:
Originally Posted by schuck6566 View Post

Addressing #2- When the DDR3 ram was first released on these 775 boards, it was with sticks that had voltages from 1.7 to 2.0 volts. Do you REALLY expect these newer 1.35 volt ram sticks to play well? Also, As i posted elsewhere, people like nvidia released their OWN memory controller that didn't play nice with some memory. Patriot released 2 different sets of memory,same name,same basic specs,1 had black/silver heat spreaderand ended in K,1 had green and end with KN. No where did they state which was for Nvidia. (difference is EPP2.0 and XMP) rolleyes.gif see post 313 in Laithans 790i thread for a way around it.wink.gif
Edit: I think ALOT of the issues with the ddr3 are either too much voltage on ram not made for it,too little voltage ram for a board that's wanting more,or trying to clock the ram too high. (I grant that above 1333 for the ram is iffy/difficult in most cases.it takes alot of work & sometimes isn't possible)

My kit 2x4 gigs is KHX1600C9D3B1K2/8gx, the exact same kit as your friend in that 790i Setup. This pair is capable of 1600mhz at 1,65v 9,9,9,24 2T, and i can assure you it will do 2133mhz with 10,11,11,30 2T. So this kit has plenty of room to play with it, but not in this board, it seems.

There is something weird in this. Some ram dividers don't work as intended. For example, i cannot post FSB Strap 400 950mhz , but it will post 1220mhz and 1359mhz ram dividers.

At 1220mhz it will correctly read the divider (3/4) . But at 1359 Bios ram setting it says (3/5) so 1510mhz or so according to cpu-z. This board has problems with Ram dividers, i'm almost sure about that.
Edited by Piskeante - 4/17/17 at 12:24pm
post #11935 of 12064
Quote:
Originally Posted by Piskeante View Post

the P5Q Pro Turbo is known to be one of the most accurate asus boards for 775 chipset in relation to voltage. It's also a good overclocker. It should be, at least, as good as mine, and mine , the P5QC can take my X5460 to 4,3ghz almost stable and it will run 4,5ghz at 1,45v. So, i think you are missing something very "big", because that board and that CPU are more than capable of doing way over 4ghz.

post some bios screenshots of the AI tunning, maybe we can help you.
I also used that video to ilustrate myself a few months ago. I gave up the moment i saw no LLC , and almost every option on Auto. Honestly, that guy knew very little of overclocking. In fact, his computer crashed once in the video.

You said you were stable at 4,6 1,47v. You didn't mention the test passed. Would be very nice to know which one and the temps you got (if you could post an screenshot including HWmonitor would be awesome).
Yeah i know the pro turbo is one of the best 775 board but still.. I got good psu and ram too, and btw my mobo is brand new from back stock.
What do you mean by almost stable? Mine is also almost stable biggrin.gif no error in prime for half a day but the memory test in aida fails and cannot figure out why while the guy in the video left everything on auto and all good. Maybe he just didnt try aida mem test- who knows. The only thing i havent played with is the strap thing which is totally out of my knowledge. Im almost sure the cpu handles the oc easily, the problem must be the ram.
post #11936 of 12064
Quote:
Originally Posted by Piskeante View Post

My kit 2x4 gigs is KHX1600C9D3B1K2/8gx, the exact same kit as your friend in that 790i Setup. This pair is capable of 1600mhz at 1,65v 9,9,9,24 2T, and i can assure you it will do 2133mhz with 10,11,11,30 2T. So this kit has plenty of room to play with it, but not in this board, it seems.

There is something weird in this. Some ram dividers don't work as intended. For example, i cannot post FSB Strap 400 950mhz , but it will post 1220mhz and 1359mhz ram dividers.

At 1220mhz it will correctly read the divider (3/4) . But at 1359 Bios ram setting it says (3/5) so 1510mhz or so according to cpu-z. This board has problems with Ram dividers, i'm almost sure about that.
I don't dis-agree that the ddr3 boards have MAJOR quirks reguarding their ram working as you'd expect/it's supposed to. 1 reason many of the 790i boards WERE able to be stable was because you could UN-LINK the ram from the cpu. (they increased/decreased seperately.) If the rest of the boards had the same option,OC'ing would be ALOT easier.thumb.gif
post #11937 of 12064
i've had good luck with a couple gigabyte p35 boards. GA-P35-DS3L and the GA-P35-DS3R with 40mm fans on the northbridge and some heatsinks thermal epoxied to the vrms. they have quite a bit of vdroop but if you monitor it with HW64 you can see what your vcore actually is.
post #11938 of 12064
post #11939 of 12064
Quote:
Originally Posted by ried16 View Post

i've had good luck with a couple gigabyte p35 boards. GA-P35-DS3L and the GA-P35-DS3R with 40mm fans on the northbridge and some heatsinks thermal epoxied to the vrms. they have quite a bit of vdroop but if you monitor it with HW64 you can see what your vcore actually is.

Same here but eventually had to get GA- EP45-UD3P to really get past 4GHz.
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post #11940 of 12064
Quote:
Originally Posted by chris89 View Post

-=Opteron=--=Prime=- vs -=MegaMod=--=Xeon=-
thumb.gifbiggrin.gifwink.gif
To paraphrase barf.. "[watching Spaceball One change into MegaMaid]
Barf: Oh, my gosh. It's not just a spaceship. It's a Transformer. "
Oh my gosh,it's not just a computer.It's a transformer! thumb.gif
https://youtu.be/EWQAvMUUJr4
Edited by schuck6566 - 4/19/17 at 7:54am
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