i endorse that one!:up:Quote:
Originally Posted by Supershanks
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i endorse that one!:up:Quote:
Originally Posted by Supershanks
The board seems to regulate the vdimm quite well I think. With bios F5D and the 4gb gskill kit set at 1.95v and running ddr3-1800 8-8-7-20 2T stressing with boinc and hyper-pi simultaneously the reading from that point behind the ram slot is actual 1.944v or as close to spot on as any board I've seen and certainly light years better than the p5e3-premium I ditched.
yes I had the x38 version the deluxe & wasn't that impressed with ram voltageQuote:
I've seen and certainly light years better than the p5e3-premium I ditched.
I'm going to check mine tomorrow. I've got a strange case of deja vu with this, Think I did it when I first got the board., I poked around with my MM. I remember being a bit wary after Ace's attempts. :shrug:
:rofl: It's actually an ideal spot. I can steady the probe against the 4th ram slot and check it no troubles even as bad as I shake :D
No the vdimm is easy , it's vcore that's the hard 1 i think on this board. Ace did a pic of it somewhere.
Found it :)
here is the Vcore measuring point!
Oh and
BUMMER...board died on me!..Ouch :eek:
Really need to avoid the shakes there.
Yeah there's another vcore point that's just as scary on one of the legs of that ic just at the bottom of his photo I think. I inadvertantly shorted somewhere in there yesterday but luckily only got a reboot. :shocked:
Yep I shorted mine a couple of times , just probing, but have been lucky :)
LOL...that short was due to carelessness on my part and also not having electrical tape around the probe almost all the way down to the point...i now have about 1/4" or 3/8" of the probe point exposed...now, if i put the probe at to much of a shallow angle, i should be protected against grounding it on any other electronic part.
:lol: I have visions of sneezing, whilst using the mm :ROTF:
Not recommended for hay fever sufferers :shrug:
YUP!...i have sneezed while measuring!:DQuote:
Originally Posted by Supershanks
I'm not gonna throw rockets yet, but my issue with the voltage - as odd as it seems - seems to be related to the Command rate. I would never guess it due to the nature of the problem.
1333mhz 1.72v 1T = OK
1333mhz >1.72v 1T = NO-GO
1333mhz >1.72v 2T = OK so far
i don't know if it so much the vdimm voltage that it the difference between 1T and 2T...you might be right on the border of having safe (usable) memory settings to function at 1T
EDIT:...have you increased the CAS & PL setting up by one notch when you set 1T with a higher vdimm than 1.72v?
i didn't set 1T... it was there by SPD and I never touched it. I think I tried every usable cas latencies but always failed with higher voltage.
So far I'm doing 41minutes of memtest 1600mhz 8-8-8-24 2T 1.92v. It was definitely the command rate.
lol how absurd is that? 1T failing with higher voltages? shouldn't be the other way around? Boy things have changed since my overcloker days back in sdr and ddr1 times...
Dusted off the multimeter today & ran a few tests
Voltage reading points & testing
I've found a couple more voltages FSB & CPU Clock Driving. Control
I think i've found (G)MCh but there are some oddballs.
Would appreciate your views :D
Very nice stuff Supershanks! Thanks :up:
that is a problem with this board...it does not handle SPD settings very well...it is way better setting them manually.Quote:
Originally Posted by |Oc|REvO_HsArC
CORRECTION:...the positive probe point for my DMM has less than 1/8 of an inch of it exposed to avoid those accidental shorts that might kill the board.Quote:
Originally Posted by Ace-a-Rue
YES!...i agree with loonym!...i answered you in your thread about the MCH voltage..i am thinking it is 1.25v as the default voltage for MCH.Quote:
Originally Posted by Supershanks
I haven't really read the anand article. I suppose they didn't indicate read points, I further suppose they posted whatever number gigabyte fed them in the review. It would seem strange to me to see such solid voltage regulation everywhere except that one value and the readings I came up with pretty much matched what you indicated Supershanks. Thanks once again.
Your Right :)Quote:
I suppose they didn't indicate read points
Update:-
Tested FSB with wolfdale, can confirm that :-
Stock FSB voltage , changes depending on CPU Type
65NM = 1.25v
45NM = 1.15v
Ace suggested that default (g)MCH of 1.25v made sence as it was aan intel standard , which ties up with my MM reading you saw in the link. On that basis i've also comnfirmed that there is an undervolt of ~0.20v on the overvolt. Confirming Anandtech's finding.
So apart from the mystery voltage from the middle pin next to the mch volts, which may be PCI-E volts, that's sorted. :)
Have updated original post ion link.
Team effort guys :) :up:Quote:
Thanks once again.
hey guys
whats the expected bandwidth for DDR1600 8-8-8-21 (7.5x400 q9450 x48t) ?
Everest gives me 8862mb/s and 8400mb/s
that is probably close for 400 fsb...as you increase the fsb, those numbers will go up since you are running the cpu system bus that much faster (L2 cache speed)
But its normal for the speed? because the comparative systems in sandra and everest show faster computers with only pc10000 ram and most DDR2's beat me...
just making sure lol
I want a bios for my X48T like this :) Gigabyte P45 Bios Facelift:shrug:
Quote:
Originally Posted by |Oc|REvO_HsArC
you should be able to tighten those timings up to 6-6-6-18 at 400 fsb.