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brainwrinkle
Oct 18, 2009

What's going on in here?


Lediur posted:

I ordered an ASUS P8P67 Pro from Newegg on Sunday, but apparently they halted the shipment or something because of this design flaw. That's pretty nice of them.

Then again, it looks like the new designs won't be in the market until March.

I ordered an ASRock P67 on Sunday and it shipped. At least I get to use it until March, and the board has 4 SATA 6 Gbs ports.

I really hope the recall isn't handled poorly. It would be a huge pain to go through a normal RMA process in March. I think I would almost rather deal with four dead SATA 3 Gbs ports than tear my computer apart and wait 10 days for a replacement.

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brainwrinkle
Oct 18, 2009

What's going on in here?


Looks like Amazon is still stocking them too.

brainwrinkle
Oct 18, 2009

What's going on in here?


I recently got an email from Newegg stating that Sandy Bridge motherboard returns would be extended by 90 days or until replacements are available. Luckily it seems the RMA process will be handled by Newegg, so it shouldn't be too painful. I'd much rather deal with Newegg's customer service than ASRock's.

brainwrinkle
Oct 18, 2009

What's going on in here?


The problem is that their supplier has said, "Don't sell any more and send what you have back to us." The fewer RMAs they have to handle the better. The retailer cares more about its relationship with its supplier than you.

Honestly a cheap $99 Athlon II quad core and cheap $60-70 AM3 motherboard will work fine for games. Since you ran into some awful luck with SB, return your processor, get an Athlon II setup, and upgrade when SB or Bulldozer is available. It sucks but you don't have many other options.

brainwrinkle
Oct 18, 2009

What's going on in here?


What is the general consensus on load line calibration when overclocking Sandy Bridge? I've heard in a few places that it causes very short voltage spikes on the higher settings and the highest setting can increase the voltage under load. I've got my 2500k stable at 1.35V and medium (Level 3 in the ASRock BIOS) load line calibration. Would it be worth increasing the LLC to drop the Vcore a bit? Do any of the other voltages really matter for a ~4.5 Ghz overclock?

brainwrinkle
Oct 18, 2009

What's going on in here?


FunkyUnderpants posted:

Quick question: does anyone know if the Z68 chipset is going to be able to support dual pci express x16 slots instead of crippling them both to x8? I recall that nVidia chipsets a few revisions back could do this on their premium boards, but I've also heard that some suit between nVidia and Intel prevent nVidia from doing the same for us this time around.

Sucks. I really wanted good SLI performance from my two GTX 460 cards.

If not the Z68, does anyone know if there's ever going to be any chipset that can support that? I was under the impression, though, that Intel and nVidia were the only actual players in the not-just-southbridges industry.

I don't think it is possible since the PCIe controller is integrated with the processor and has a limited number of lanes. There's very little real-world difference in performance between x8 and x16, especially since Sandy Bridge is PCIe 2.0 and x8 2.0 is as fast as x16 1.0. There's really no need for x16/x16. Benchmark

brainwrinkle
Oct 18, 2009

What's going on in here?


Alereon posted:

Never use loadline calibration, it will cause voltage overshoots when exiting load conditions that can damage the processor (or at the very least cause hangs or crashes). If the voltage isn't high enough under load but is within safe limits when idle, just increase the voltage setting.

Do you have a source for this? I tried it with LLC turned completely off and I drop about .07v under load. Is that normal? It seems my 2500K is stable at 4.4 Ghz at 1.32v under load, which would mean I would need a 1.39v Vcore with no LLC versus 1.35v with medium LLC. That seems a bit high.

brainwrinkle
Oct 18, 2009

What's going on in here?


Alereon posted:

Here's an Anandtech article about CPU power delivery and Loadline Calibration. It was written for the 45nm Core 2 Quads, though the principles are the same (and 32nm CPUs will be even more sensitive to voltage transients). A .07v drop under load doesn't seem abnormal, mine can be up to .10v on my Penryn system, though the voltages are also higher proportionally (and that's when pushing my CPU past the point where current starts getting retarded).

Wow, interesting. Thanks for the information! I'll definitely turn LLC off then. Do you think it would be safe to set the Vcore to 1.39 at idle? Is the "safe" Vcore measured at load or idle? I know 1.35v-ish is considered safe for Sandy Bridge. Is there any way to have the idle voltage drop with Speedstep like my Q6600 did?

brainwrinkle
Oct 18, 2009

What's going on in here?


brainwrinkle posted:

Wow, interesting. Thanks for the information! I'll definitely turn LLC off then. Do you think it would be safe to set the Vcore to 1.39 at idle? Is the "safe" Vcore measured at load or idle? I know 1.35v-ish is considered safe for Sandy Bridge. Is there any way to have the idle voltage drop with Speedstep like my Q6600 did?

If anyone else has an ASRock P67 board, I figured out that using offset voltage settings allows the processor to undervolt while idle. It also seems to have better stability and voltage drop characteristics under load with LLC disabled so far, so I'd highly recommend using offset voltage over static. Thanks again for the help Alereon. I'll take the rest to the Overclocking megathread.

brainwrinkle
Oct 18, 2009

What's going on in here?


sbyers77 posted:

Is there any easy way to check which SATA ports my devices are plugged into without opening up the case?

I got a pre-built system at work that's been recalled but my boss says hes cool with not returning it if nothing is plugged into the SATA 3Gbps ports. I'd rather not open it up to figure this out.

Device Manager -> Disk Drives -> Properties -> Location: Location 0 and 1 are 6 Gbps, the rest are 3 Gbps.

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brainwrinkle
Oct 18, 2009

What's going on in here?


spasticColon posted:

Well at 4.2GHz its stable at 1.2v so I don't know what the deal is. All I know is that it at 4.3GHz it bluescreens until I pump up the voltage to 1.28v and at 4.4GHz I have to pump it up to 1.3v so I may just have a chip of lesser quality. Unless there is something I'm not doing right. Would messing with the RAM voltages and/or timings make any difference? I have them all set to auto right now. Turning off XMP doesn't make a difference either.

Mine has a pretty similar voltage curve. I've got it at +.05V offset and it hovers around 1.28V load at 4.3 Ghz. I think chips might just vary in their stock voltage. I can get it to 4.5 Ghz stable, but I have to set the voltage around 1.34V if I remember correctly, which isn't worth the effort on a 24/7 overclock of an already fast chip in my opinion.

I think I noticed that bumping my RAM from 1.5v to 1.53V helped stability a little bit, but that could just be my imagination too. I haven't messed with overclocking this PC since I built it months ago.

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