If it were only 1.500V at the BIOS level, for a 1.325V chip that should take years to cause a big issue, It's only 1.6V I see chips start to get ruined in under a year, and even then it's not that common for 65nm chips. 45nm chips are much more sensitive, it's more like 1.5V for those.
Oman7, You did answer me on that. The overclocked E6750 was a fluke! The person who bought it is a good friend, and it ran fine for all that time with a duff CPU, so I just left it overclocked, but gave her the choice first. Considering the CPU was so stable at almost no voltage increase, and it had been running the same speed for over a year with the old CPU, I just went with it! LOL!! Like I said, it's been running 24/7 for just about a year now without any hiccups! It's also the most used computer in the entire office, because it's so much faster than any of the others! Best Regards, Russ
This CPU has accidentally seen 1.41v for < 1 minute when I discovered overclocking with the voltage set to "auto" isn't a good idea. Other then that it's never been over 1.31v (or even 1.3v) for any extended amount of time (I ran it up to 1.31v the other day to see if it would help keep the system from crashing). The MB & RAM have already been RMA'd and hdd's & psu replaced so I guess I finally have to RMA the cpu (didn't want to since I paid extra to get one from a specific batch lol). Still haven't decided if I want to just get a Q9550 or go with a full new i5/i7 build (probably post more on this later).
Maw: 1.41V is fine, and typical for auto on an overclocked 65nm chip. 1.6 is also an 'auto' and is a bug with gigabyte boards and Q9550s, which is why it happened.
I figured as much, but when it only needed ~1.3v to be stable it doesn't make a lot of sense to leave that high.
Indeed not, and doing so will save you energy as well, but nonetheless 1.4V isn't nearly enough to ruin a 65nm CPU, I ran mine at 1.4V (slightly over in fact) for 2 years without incident.
Sam, I had my 65nm E6750 up to 1.479v. When I had to push the voltage to 1.5v (Max) to keep it running, I RMA'd the CPU. The replacement ran at 3.552GHz using only 1.325v and took less than 1.4v to run at 3.8GHz. Russ
Hi guys, I'm back on here to see how all are doing and haven't been on for mos of the C2D/Quad days but now that they are yesterdays game I can help where I can as I still have 3 nice Core 2 rigs in operation with nice daily overclocks. I have a daily E6750 for almost 3 yrs on a 3.84GHs at a 48x8 and it too ran just under 1.467v. I do have a E6600 at same speed but it needed more PLL and 1.548v. I have another E6750 as a daily user for only 2 years at 4.01GHz (needed only 1.567v) as 500x8 w/ DDR3 2000 on an X48 based Rampage Extreme and the same on an X38 baxed Maximus but w/ DDR2 1200 in 5:6 CPU:RAM ratio. These Core 2's still have lots to offer and fun to learn on before venturing to core i7.. So how many are dabbling in core i7 1366 or 1156 socket? I will read through as I get time but feel free to share notes. "My 2 Cents"
hehe look whos back! welcome mate. PS you are behind! eveyones moved on in the world to 6 coer 980X CPUs and EVGA dual CPU 1366 socket boards with 7 16x pcie slots!
Hey Nuck, Long tim no hear from. Hope your holidays were great, and Santa brought you lot's of goodies. Don't be such a stranger. Best Regards, Russ
Oh I'm still in the game but I'm returning to school for an added degree so my budget with school and busy family has left me with less time to benchtest but I do try to keep in the game. I moved right through all the ASUS ROG series from 1st X38 Maximus Formula, X48 Rampage Frmula, X48 Rampage Extreme, and currently on 2 X58 based Rampage II Extreme & the new Micro Gene. currently on the budget Core i7 920 DO 2nd rev my old one got too hot. This DO is a great OC'r but I'm ording a new i7 930 next month if the're ready. I am not in a possition to go 6 core yet but sure looks nice. I'm more for the performance overclocking on the quality entry level CPU's I dont game much so I'm back to single VGA so a little GTX265 ASUS is just fine for my mild needs. 4GHs on a i7 920 on air is pretty nice as a daily user. I'm impressed with this workhorse rig. Please stay tuned, after these messages, I'll be right back! "Don't touch that dial"
I'm impressed with what this little guy can do for it's size. The BIOS is laid out just as close to my big Extreme version less a few sttings. I got it to hit 220x BLCK so far on low CPU multi for testing but it does get warm on stock cooling so keep it cool and you got some headroom with a 940/920 on air. It's sweet spot seems to be 200x with very mild voltage added. In fact some voltages overvolt in "Auto" so I learned from log ago to stick to manual after you get a hold on the normal volts. I'm moving my 2nd one to water soon so I can bring down the temps but it remains stable ate moderate loaded temps so far. SLI double spaced w/ a PCI-E audio is a snag. I use a single so you can do either VGA + 2 PCI-E cards, or VGA + 1 PCI or 2 single spaced PCI- cards. The CPU socket area is rommy enough for my big copper ThermalRight Ultra 120 in either direction.
NuckNFuts: Hello again, very long time no see! I may very well be playing around with an 1156 socket system this week if I buy one. Probably going to be taking it slowly at first though, since it's completely unexplored territory for me.
So close to getting my first 5850 it's not even funny. http://www.newegg.com/Product/Product.aspx?Item=N82E16814129141 I might pick it up but I might not. Work is slow in the winter so money is a bit tight. But damn the price just dropped that's the new lowest price on newegg. Same price I got my first 4870 for last year Depends if BF BC2 is worth the effort though. It looks amazing and that's the only reason I currently have to justify the purchase. Might wait till March after my 20th b-day though. I should be starting back up at a few of my seasonal jobs. Welding and fabrication is slow until late summer and fall when the agricultural industries start bringing stuff in for repair. For now I just switch over to agricultural jobs till BDT(Small Metal Works Shop) wants me back. I love that my dad knows so many people XD
I'm pretty sure I've been seeing 5850s for that price on newegg for quite some time, as I regularly check their prices compared to the UK.
4.0Ghz setting for the UD3P Rev 1.6 MB Intelligent Tweaker(M.I.T.) Robust Graphics Booster ...............: Turbo CPU Clock Ratio ..........................: 8 Fine CPU Clock Ratio.....................: 0.5 CPU Frequency ...........................: 4.00 GHz Clock Chip Control Standard Clock Control CPU Host Clock Control..................: [Enabled] CPU Host Frequency (Mhz) ............: 471 Mhz PCI Express Frequency (Mhz) .........: 100 C.I.A.2 .................................:[Disabled] Advanced Clock Control [Press Enter] CPU Clock Drive...........................: 1000mV PCI Express Clock Drive.................: 800mV CPU Clock Skew (ps)....................: 0ps MCH Clock Skew (ps)...................: 50ps DRAM Performance Control Performance Enhance...................: [Turbo] Extreme Memory Profile (X.M.P.).....: Disabled (G)MCH Frequency Latch...............: [Auto] System Memory Multiplier ..............: 2.00D Memory Frequency (Mhz) ..............: 942 DRAM Timing Selectable ................: [Manual] Standard Timing Control CAS Latency Time........................ 5 tRCD ......................................... 5 tRP'........................................... 5 tRAS.......................................... 15 Advanced Timing Control tRRD........................................... 4 tWTR.......................................... 4 tWR............................................ 6 tRFC........................................... 62 tRTP........................................... 4 Command Rate (CMD) ....................: 2 Driving Strength Profiles Driving Strength ............................: Auto Channel A Static tRead Value.........................: 9 tRD Phase0 Adjustment...................:Auto tRD Phase1 Adjustment...................:Auto tRD Phase2 Adjustment .................:Auto tRD Phase3 Adjustment..................:Auto Trd2rd(Different Rank)....................:Auto Twr2wr(Different Rank)...................:Auto Twr2rd(Different Rank)...................:Auto Trd2wr(Same/Diff Rank)..................:Auto Dimm1 Clock Skew Control...............:Auto ps Dimm2 Clock Skew Control...............:Auto ps Channel B Static tRead Value.........................: 9 tRD Phase0 Adjustment...................:Auto tRD Phase1 Adjustment...................:Auto tRD Phase2 Adjustment .................:Auto tRD Phase3 Adjustment..................:Auto Trd2rd(Different Rank)....................:Auto Twr2wr(Different Rank)...................:Auto Twr2rd(Different Rank)...................:Auto Trd2wr(Same/Diff Rank)..................:Auto Dimm1 Clock Skew Control...............:Auto ps Dimm2 Clock Skew Control...............:Auto ps Motherboard Voltage Control Voltage Type.………... Manual CPU Load Line Calibration....................:[Enabled] CPU Vcore….………......1.312*.......: 1.350 CPU Termination…..... 1.200V*.......: 1.420 CPU PLL…………………....1.500V*.......: 1.570 CPU Referen.…………....0.760V*.......: 0.800 MCH/ICH MCH Core…………….....1.100V...........: 1.520 MCH Rference….…….0.760V...........: 0.899 MCH/DRAM Ref.…......0.900V...........: 0.970 ICH I/O……………….....1.500V............: 1.500 ICH Core…………...……1.100V............: 1.200 DRAM DRAM Voltage ……....1.800V............: 2.10V DRAM Termination .…0.900V............: 0.850 Channel A Reference 0.900V............: Auto Channel B Reference 0.900V............: Auto Test with IBT at 4.0 Passing IBT at 4.0
With regard to Core i5 overclocking, it seems utterly damn ridiculous. Using nothing but the Base Clock and adjusting the memory multiplier to keep the memory speed correct, I've clocked my i5 750 from 2.66Ghz to 4.12Ghz. Everything else is Auto and it runs beautifully. Quite a contrast to how difficult it was to get my Q9550 to just 3.8!