Here is another thing that I would recommend that you change in the BIOS: I would recommend changing Turbo Ratio = "Maximum Turbo Ratio Setting in BIOS" Then it will give you an option to set each core. Instead of setting 48 right away, it would be best to put in a lower number like 42-45.I'll walk you through it. So lets just say 45. You would then type 45 into each box. Then restart the computer and run CPU-Z available here. If you have your settings correct, it should show someting like this: (I adjusted my multiplier down from 48 to 45 so that our screens would be exact. I did forget to bring my BLK frequency back to 100, so it is not going to be exactly the same, but bare with me. ) Note how the CPU frequency is only 1.X GHz. This is because the system is idle.Alright, now start up Prime95 available here (If your running x64 OS). Run a torture test with default settings, and CPU-Z should look like this while the test is running: (Like I said above, I adjusted my multi to 45, but forgot to adjust my BLK frequency, so it is actually running at 4.6 in the picture, but you get the point.) Note how the CPU frequency has now increased to 4.6xx under load.To stop the torture test, go to File>Stop. Then after a few seconds, CPU-Z should read 1.X GHz again.Let me know if this fixes it! Happy Flying,

Ok, did some testing. First I reset defaults in bios and ran test with CPU-Z and Prime 95...CPU frequency didn't budge (1600). Next, I used the auto overclock feature in Bios...Frequency didn't budge. Then I set the bios manually for a 4.8 ghz OC...again the freq didn't budge.....Could I have damaged my cpu somehow? Don't know what else to do.

I suppose that it is not impossible, though I've never heard of anything like this. Assuming that you registered your mobo (ALWAYS DO!), the next step I think would be to send a ticket to ASUS support. Don't ask the for an RMA, just ask them if they have any idea of the problem. They will probably suggest the same things that have already been mentioned here, but it's worth a try.

I suppose that it is not impossible, though I've never heard of anything like this. Assuming that you registered your mobo (ALWAYS DO!), the next step I think would be to send a ticket to ASUS support. Don't ask the for an RMA, just ask them if they have any idea of the problem. They will probably suggest the same things that have already been mentioned here, but it's worth a try.

This is the second replacement board they have sent me. Both did the same thing.

This is the second replacement board they have sent me. Both did the same thing.

I said don't ask for an RMA, just ask if they have any ideas. If not, try Intel? I wouldn't mention OCing to intel, just tell them that it is not coming up from the idle frequency of 1.x GHz and see what they have to say. What did you have the Vcore set to when you were running it at 4.8?

I had the Voltage at 1.415 as per above post...Any chance it could have something to do with the memory? There was a change in 1305 to improve compatabilty. Maybe it screwed it up...

I had the Voltage at 1.415 as per above post...Any chance it could have something to do with the memory? There was a change in 1305 to improve compatabilty. Maybe it screwed it up...

What is the position of the TPU switch on the motherboard?

What is the position of the TPU switch on the motherboard?

What is the TPU Switch?

Stew,Man, I feel bad about your situation.Assuming you're in the same boat as a few days ago, have you tried: -exchanging the power supply -just in case it hasn't been mentioned here already, tried using just one stick of ram ....rotate them to insure that one isn't badGood luck, man.

What is the TPU Switch?

See the manual, page 2.17.

Try this method, with 1305:1. Reset your UEFI to Optimized Defaults, reboot, enter UEFI and then flash to the new UEFI build.2. After flash and restart, enter Windows/Linux, then exit and shutdown.3. Remove the power cord from the power supply, wait thirty seconds, press Power On button to clear any remaining charge, clear CMOS for five seconds, reattach the power cord, power on the system, enter UEFI, set to Optimized Defaults, save and exit.4. Enter UEFI, set your system to customized settings based on your system configuration (RAID, OC, etc), save and exit.I know you already are on 1305, just "overwrite" your 1305 with 1305

Stew,Man, I feel bad about your situation.Assuming you're in the same boat as a few days ago, have you tried: -exchanging the power supply -just in case it hasn't been mentioned here already, tried using just one stick of ram ....rotate them to insure that one isn't badGood luck, man.

I've tried pretty much everything. I've ordered another motherboard from a different manufacturer hoping that will solve the problem. If it doesn't I think I'll cry.

See the manual, page 2.17.

The Sabertooth doesn't have the switch...but thanks.

Try this method, with 1305:1. Reset your UEFI to Optimized Defaults, reboot, enter UEFI and then flash to the new UEFI build.2. After flash and restart, enter Windows/Linux, then exit and shutdown.3. Remove the power cord from the power supply, wait thirty seconds, press Power On button to clear any remaining charge, clear CMOS for five seconds, reattach the power cord, power on the system, enter UEFI, set to Optimized Defaults, save and exit.4. Enter UEFI, set your system to customized settings based on your system configuration (RAID, OC, etc), save and exit.I know you already are on 1305, just "overwrite" your 1305 with 1305

Done this a couple of times but perhaps not quite a thoroughly as you suggest. I'll try it again when I get home. Thanks

Ok, Steve. I found it in another forum when I had problems after upgrading to 1502. It comes from Asus themselves, and may not help if you've already reflashed 1305 on top of itself, but I really don't know what else to suggest

Get CPUID Hardware Monitor... check cpu fan speed and cpu temperatures..Check both ps connections on mb and cpu fan connected to cpu fan connection on mb.CPU will stay at 1.6 Ghz unless you run a reasonable load.When you in EFI bios "AI Tweaker" screen check the "Yellow" comments top it will tell what the bios setting target can produce.. Page 3-7Good luck..

Well, received my new ASRock Fatality MB...I wanted to try another brand in case it was an issue with the 1305 BIOS (damaged one of the pins in my Sabertooth anyway...it never ends!). Well, the problem persists. Downloaded Intel processor diagnostic utility from Intel web site and guess what? The processor failed the test!! I have no idea how this happened. I was pretty bummed...but after about 40 minutes on the phone with Intel support they agreed to replace my chip. So, I guess when my new chip arrives I'll be back in business...I hope.I appreciate all the help (and sympathy) I've received!! I'll let you know how it turns out.

Hey, so it happened to you too! I also managed to damage one of the pins... and the shop agreed to replace me the motherboard without any cost!Concerning bummed chip - very nice from Intel to exchange it, cuz it can also be burned through first OC you did.