DFI LP UT X58-T3EH8 - First bench, bios screens etc

[eva2000]

I'm sorta in the same boat, I have a giga ud5 and my first task is to get the DFI dialed in so I can do a true "apples to apples " head to head comparison between the DFI and the giga with same components. I'll use a voltmeter to insure same Vcore and do two prime runs, 1.34v and 1.45v Vcore. I'm using a Tuniq Tower 120mm w/120mm fan at 2100 RPM
for benching (900 RPM for 24/7). I have to turn off HT for benching cause heat overwhelms with HT enabled.
BTW, for what it's worth...I have tested 4 i7 920's to date. Two were from Amazon.com LLC (sold and shipped by Amazon.com as opposed to one of their 3rd party vendors).
The first of these two was very weak, could do only 3.7 Ghz or so. The second was defective in that no matter what I did, it would max out temps on all cores at 100C within a couple minutes. I sent both of them back, the point being that they both were very similar in their batch numbers and version nums (#....-002) and pack dates. I ordered a third chip and when I got it, I saw the same info as the other two bad chips and decided to send it back without opening it. Now maybe there's nothing to it, just bad luck, but I would stay away from Amazon.com LLC as a source. the two 'good' chips were version num #....-001 and were right in the ball park of expected performance. Not great like eva2000, but at least average from what I've seen on this forum. To be clear, I'm only complaining about Amazon.com LLC, not BuyNow.com, which is also a vendor on the Amazon site. One of the two 'good' chips was in fact from BuyNow.

Update: Make that 5 920s tested. Just got another from BuyNow.com. Looked at the sticker, another week 41 chip, version#002, a bad sign. Sure enough, a dud. This one runs cool, but can do only 3927Mhz in my standard prime run of Vcore=1.344 HT off, Tuniq Tower 120 at 2100 RPM. My 'good' chip has done 4116 Mhz with identical settings and components. My two good chips are both week 37, version #001. Are the later chips generally weaker, or is this just a coincidence?

ouch there are average, better than average and gem i7 cpus out there, seem I got a good pair with 3836A756 batch



I've seen good i7 920s in week 36, 37, 38 batches so there could be some truth to this ?

Guys,

I am having real issues here.. Can't get the damn system to boot with EIST + turbo enabled. Not even at 4Ghz (I gave 1,5V+ Vcore so that's not the issue). Same settings work fine when I disable EIST (200x19 and 200x20 even tho 200x20 needs enourmous amount of Vcore, way more than 220x19 for example - I think my 920 just hates the 20x mult which is why I need the freakin 21x to work)

Any suggestions?

what batch/fpo ? and yeah 20x multi is harder to clock on most boards as it's running cpu at full power, turbo with eist I don't think the cores are always loaded and there has to be some form of speed step involved as i benched wprime which stress all 8 threads at 200x215 vs 210x21 = 4.3ghz (non-turbo) vs 4.4ghz (turbo) and times were identical

21x has higher bclk max than 20x too http://i4memory.com/102697-post7.html

It's a horrible story. We hope that Eva lights this problem.
BTW my 940 in 20x200 in ex58 needs tons more of Vcore than 19x211.

read paragraph above

what r u trying to run the ram at using this multiplier and what do you have cpu vtt/qpi voltage set at? If your running your memory on the 10 multiplier this board seems to have a need to boost the vtt/qpi voltage. It happens to me @ 20 with turbo disabled. Enabled no issue.

yup true http://i4memory.com/102545-post5.html high mem clock = higher cpu vtt needed

More turbo mode notes i posted http://i4memory.com/102693-post9.html

I tested 21x205 and 21x210 for Super Pi 1M, 8M, 32M and 3dmark06.

Notes:

• Seems at high bclks like >210, when you move the cpu multiplier up and then raise bclk i.e. from 205 to 210, it can get to a stage were the you'd need to increase CPU VTT even more despite the same higher bclk (210) being stable at a lower cpu multiplier at a set CPU VTT value.
• I experienced this as I passed Super Pi 32M @21x210 = 4410Mhz at 1.4875v but couldn't get 3dmark06 to pass cpu tests even with 1.55v vcore by itself with CPU VTT at 1.48v which was stable for 220bclk on lower cpu multipliers.
• Tried raising CPU VTT by itself to 1.55v and vcore at 1.4875v still couldn't pass cpu tests in 3dmark06. Then remembered sometimes Core i7 cpus like to have vcore and CPU VTT within 0.02-0.03v of each other. So tried vcore 1.525v and CPU VTT at 1.55v and 3dmark06 cpu tests passed with no problems!

don't forget to use bios template to share you settings used http://i4memory.com/f80/dfi-lp-ut-x5...emplate-12919/