Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

[SmOgER]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

SmOgER, your new cpu is looking good.
I'm a bit confused, do you have a 5470 Xeon 3.33GHz coming soon?

lol no. The 9.5 multi of X5460 is plenty, it's just that I found an older C0 stepping I had to be more limiting than I previously thought - 45nm chips run way hotter than 65nm ones volt-for-volt. So I ordered E0 awhile back.
My X5460 C0 which did 4Ghz at 1.38v will be going for sale soon.

[profJim]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

Will they work? Maybe, maybe not.

Just because they work in one system does not mean that they will work in an identical or similar system.

The settings look reasonable, but the odds are against you that copying someone's settings will be stable, let alone allowing your system to boot into windows.

I copied the AnandTech "EP45-UD3P Finest" review settings for the 8GB Q9550 and my system barfed while posting.
It (almost) never hurts to try.

Keep in mind that there is a specific procedure that needs to be followed why tweaking the MCH Reference and/or Cpu Reference settings.

From http://forums.tweaktown.com/gigabyte...tml#post344535

The general recommendation is that VTT should be set at least 0.05 - 0.10 volts lower than Vcore.

With LLC enabled, you are able to run with Vcore somewhat lower than the Vcore setting when LLC is disabled.
I've seen a few stable setups running at higher than 4.0GHz where VTT was closer to or equal to Vcore.

You might be able to lower these voltages by tweaking MCH Refenence voltage.
The proper way to do this is:

1. set VTT = 1.20
2. modify MCH Reference to the new value
3. set VTT back to the desired value

It's best if you include this information in your bios settings as:
MCH Reference -------- 0.760V ------ : [xxxx] set to 0.7?? at 1.20 VTT

where xxxx is the value displayed in the bios after you have re-set VTT back to the current setting

Most extreme C2D overclocks that tweak MCH Reference use settings lower than 0.760 (with VTT set at 1.20), such as 0.740, 0.720, or 0.700.

FYI, this post shows Intel's guidelines for the P4 chipset family. With 1.40, you are 6% over the recommendation, which should be safe for now.
I recommend extended stress testing with your current setup. Short term use with your current settings should be fine.
Post your current bios settings and screen-shots after you have completed testing.

With your quad core cpu, you will probably want to increase MCH Reference or Cpu Reference but it's possible that lowering either of these settings might help.

Many of the better overclocking guides say that tweaking either of these settings is often needed with FSB = 475MHz or higher. As I recall, Anandtech and others have stated that quad core processors often work best with a 70% ratio, for example 0.760 divided by 1.20 (the standard settings) is 0.6333 or 63.33%.

Some people complain that mathematics makes their head hurt.
If you're one of these, I can't help you.

[lukevega]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

Well I took a look at the screen and my X5460 is getting HOT!
I wouldn't be surprised if my PC has shut down when I check it again tomorrow.

In the meantime I wonder if you can help with another query...

I'm about to return my USB 3.0 PCIe card (Inateck PCI-E to USB 3.0 2-Port PCI Express Card and 15-Pin Power Connector, Mini PCI-E USB 3.0 Hub Controller Adapter, with Internal USB 3.0 20-PIN Connector - Expand Another Two USB 3.0 Ports - [ Include with A 4pin to 2x15pin Cable + A 15pin to 2x) and purchase a new one from the same vendor that does not require a power connection (Inateck 2-Port PCI-E USB 3.0 Express Card, Mini PCI-E USB 3.0 Hub Controller Adapter, with Internal USB 3.0 20-PIN Connector - Expand Another Two USB 3.0 Ports for Windows XP/7/8/ - No Additional Power Connection Needed: Amazon.co.uk: Computers & AccStarTech 12 inch 4 Pin Fan Power Splitter Cable - F/M: Amazon.co.uk: Computers & Accessories) or a generic 3 pin version (http://www.amazon.co.uk/Generic-Powe...splitter+cable) I currently have my CPU cooler fans connected to CPU_FAN and SYS_FAN 1 and my case fans connected directly to the power supply. I thought if I used the splitter for my CPU Cooler fans then I could use the SYS_FAN 1 supply to monitor my Noctua case fan.

Do you think it's worth it?

[profJim]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

Have you tested your existing usb3.0 add-in card with it installed in your EP45-UD3P?
It should have somewhat better throughput compared to the P35-DS3L's pci-e bandwidth.

My 3TB Toshiba/Canvio's usb3.0 performance is reasonable (i.e. up to ~100MB/sec) with my P35 and P45 motherboards, but my Samsung 830 performance connected to the same add-in card is terrible, probably because of the docking station that connects to the add-in card. Have you tested your external hard drive's performance when it's connected to the EP45-UD3P? Don't expect any miracles, but it should be somewhat better than the P35's performance.

When you use a fan splitter cable, only one yellow (rpm) wire should connect one female connector to the cable's single female connector. It appears that having both male yellow wires connectors to the female connector causes errors with the reported fan speeds. Keep in mind that you can use the slow sys_fan2 motherboard connector (or any other fan header) to monitor a fan's speed when it is powered by your power supply.

With some cable ends, it isn't very difficult to remove one of the yellow wires.

Maybe you can find a good local dentist who is proficient with a soldering iron who can perform some fan cable splitter surgery.

note: With the cpu fan header there is a difference in fan speeds when you select PWM using voltage versus using true PWM.

Several options:

[lukevega]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

It seems I was a bit tired last night as non of my fans have the PWM function anyways!

I don't have access to a soldering wire and I don't think there's a single cable I can purchase that will be powered by the power supply and also allow connection to the SYS_FAN 2 connector to monitor the RPM... So I'll stick with having my cooler fans connected to CPU_FAN and SYS_FAN 1 and my case fans connected to the power supply for now.

I haven't tested the PCIe card in my EP45-UD3P yet, but I am considering changing more for the convenience of not having a power cable attached as there's a chance it would disrupt the airflow (correct me if I'm wrong there).

Well my system passed 10 hours of the Large FTTs but it was very hot - so much so that RealTemp displayed 'HOT' for core 1 when the other cores were ok.

[profJim]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

You have Thermal Monitor 2 enabled in your bios so the worst that should happen is that your cpu will throttle down to lower the cpu temperature. This might affect the Prime95 test results, but so be it. I need to keep reminding myself that you have HWiNFO and RealTemp set to report core temperatures using TjMax = 85^o(C) and not to use the "normal" 100^o(C) value when computing the temperatures.

I'm curious what TjMax value SmOgER is using with HWiNFO.

If I were you I would be running much shorter LinX tests, for example no more than 5 loops using 2048MB of memory.

As I recall your Antec P82 computer case is a very quiet case, but it does not excel in providing adequate airflow and internal cooling for systems that generate a lot of heat.

If you need to splice any individual fan cable wires, do a web search using: western union splice and look at the pictures and read the instructions. You should also use the correct diameter of heat shrink tubing to insulate all wire splices. Don't use regular electrical tape to insulate the wire splices as the heat in your computer case will cause the tape to unravel sooner rather than later.

• You will need a splitter cable that has two male connectors, one for each fan and two female connectors.
• One yellow rpm wire needs to be disconnected from one of the male cable ends.
• One female cable end should only have the yellow rpm wire connected; the red and black wires from this female connector must be removed before you plug this altered female connector to the motherboard's cpu fan header.

[lukevega]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

I just noticed that there is a PSU_FAN as well as SYS_FAN 2 - I'll try both of them and see what speeds they report for my Noctua case fan.

Small FTTs still going - high temps again, I did a sensor test in RealTemp before the Large FTT test (don't really know if that will have made any difference at all...

[profJim]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

Sys_Fan2 is a PWM fan but it normally doesn't deliver full power.

With Sys_Fan2 my 1600 rpm fan only spins at ~ 600 - 700 rpm.

The Sys_Fan2 speed increases somewhat after the interior case temperatures rise a significant amount.

The remaining 3 pin headers will deliver full speed and the Cpu_Fan can run at full speed if you disable PWM mode.

When you're done with the current Prime95 test, see if disabling LLC and increasing cpu vcore somewhat has a positive effect on cpu core temperatures.

Page 24 in the EP45-UD3P user's manual shows the location of the four motherboard fan headers.

[lukevega]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

7 hour small FTTs passed :):

[lukevega]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

So I installed my USB 3.0 PCIe card and ran some benchmarks:



These are much better than my previous system (http://forums.tweaktown.com/gigabyte...tml#post485253) so I'm pleased :) Just hoping that the new card will have the same (or better) performance when it arrives.

I also connected my Noctua case fan to the SYS_FAN 2 connector and HWiNFO is strangely mis-reading the RPMs as ~16,000 :/ Not sure why this is but hopefully it won't be a problem.

I'm now about to try running at 3.8 and see what happens - If all goes well LinX screenshot to follow :)

[lukevega]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

You'll have to forgive me if these settings aren't very logical but I'm giving them a go hoping that I won't do anything irreversible!

CPU Frequency = 3.80GHz (400x9.5)
CPU Host Frequency(Mhz) = 400
CPU Vcore = 1.35000V
CPU Termination = 1.260V

***************************************
***************************************
Gigabyte GA-EP45-UD3P (Rev. 1.0) - F11d
***************************************
***************************************
******************************
MB Intelligent Tweaker(M.I.T.)
******************************
Robust Graphics Booster ..............: [Auto]
CPU Clock Ratio ......................: [9X]
x Fine CPU Clock Ratio................: [+0.5]
[B]CPU Frequency ........................: 3.80GHz( 400x9.5)[/B]
********** Clock Chip Control ********
>>>>>  Standard Clock Control
CPU Host Clock Control................: [Enabled]
[B]x CPU Host Frequency(Mhz).............: [400]/B]
PCI Express Frequency(Mhz)............: [100]
C.I.A.2...............................: [Disabled]
>>>>> Advanced Clock Control..........: [Press Enter]
CPU Clock Drive.......................: [800mV]
PCI Express Clock Drive...............: [900mV]
CPU Clock Skew........................: [  0ps]
MCH Clock Skew........................: [  0ps]
******** DRAM Performance Control ********
Performance Enhance...................: [Turbo]
(G)MCH Frequency Latch................: [Auto]
System Memory Multiplier (SPD)........: [Auto]
Memory Frequency(Mhz).....800.........: 912
DRAM Timing Selectable (SPD)..........: [Manual]
>>>>> Standard Timing Control
x CAS Latency Time................5...: [Auto]
x tRCD ...........................5...: [Auto]
x tRP.............................5...: [Auto]
x tRAS...........................18...: [Auto]
>>>>> Advanced Timing Control.........: [Press Enter]
x tRRD............................3...: [Auto]
x tWTR............................3...: [Auto]
x tWR.............................6...: [Auto]
x tRFC...........................52...: [Auto]
x tRTP............................3...: [Auto]
x Command Rate (CMD) .............0...: [Auto]
>>>>> Channel A Timing Settings.......: [Press Enter]
x Static tRead Value.............8...: [Auto]
x tRD Phase0 Adjustment...........0...: Auto
x tRD Phase1 Adjustment...........0...: Auto
x tRD Phase2 Adjustment ..........0...: Auto
x tRD Phase3 Adjustment...........0...: Auto
x Trd2rd(Different Rank)..........6...: Auto
x Twr2wr(Different Rank)..........6...: Auto
x Twr2rd(Different Rank)..........5...: Auto
x Trd2wr(Same/Diff Rank)..........8...: Auto
x DIMM1 Clock Skew Control (ps).......: Auto
x DIMM2 Clock Skew Control (ps).......: Auto
x DDR Write Training..................: Auto
>>>>> Channel A Driving Settings......: [Press Enter]
x Driving Strength Profile............: [Auto]
x Data Driving Pull-Up Level..........: Auto
x Cmd Driving Pull-Up level...........: Auto
x Ctrl Driving Pull-Up Level..........: Auto
x Clk Driving Pull-Up Level...........: Auto
x Data Driving Pull-Down Level........: Auto
x Cmd Driving Pull-Down level.........: Auto
x Ctrl Driving Pull-Down Level........: Auto
x Clk Driving Pull-Down Level.........: Auto
>>>>> Channel B Timing Settings.......: [Press Enter]
x Static tRead Value.............8...: [Auto]
x tRD Phase0 Adjustment...........0...: Auto
x tRD Phase1 Adjustment...........0...: Auto
x tRD Phase2 Adjustment ..........0...: Auto
x tRD Phase3 Adjustment...........0...: Auto
x Trd2rd(Different Rank)..........6...: Auto
x Twr2wr(Different Rank)..........6...: Auto
x Twr2rd(Different Rank)..........5...: Auto
x Trd2wr(Same/Diff Rank)..........8...: Auto
x DIMM1 Clock Skew Control (ps).......: Auto
x DIMM2 Clock Skew Control (ps).......: Auto
x DDR Write Training..................: Auto
>>>>> Channel B Driving Settings......: [Press Enter]
x Driving Strength Profile............: [Auto]
x Data Driving Pull-Up Level..........: Auto
x Cmd Driving Pull-Up level...........: Auto
x Ctrl Driving Pull-Up Level..........: Auto
x Clk Driving Pull-Up Level...........: Auto
x Data Driving Pull-Down Level........: Auto
x Cmd Driving Pull-Down level.........: Auto
x Ctrl Driving Pull-Down Level........: Auto
x Clk Driving Pull-Down Level.........: Auto
****** Motherboard Voltage Control ******
Voltage Types..........Normal...........Current
-----------------------------------------------
>>> CPU
Load-Line Calibration.................: [Enabled]
[B]CPU Vcore..............1.23750V.......: [1.35000V][/B]
[B]CPU Termination........1.200V.........: [1.260V][/B]
CPU PLL................1.500V.........: [1.570V]
CPU Reference..........0.760V.........: [Auto]
>>> MCH/ICH
MCH Core...............1.100V.........: [1.200V]
MCH Reference..........0.760V.........: [Auto]
MCH/DRAM Reference.....0.900V.........: [Auto]
ICH I/O................1.500V.........: [Auto]
ICH Core...............1.100V.........: [Auto]
>>> DRAM
DRAM Voltage...........1.800V.........: [2.100V]
DRAM Termination.......0.900V.........: [Auto]
Channel A Reference....0.900V.........: [Auto]
Channel B Reference....0.900V.........: [Auto]
******** Advanced BIOS Features ********
Hard Disk Boot Priority...............: [Press Enter]
Quick Boot............................: [Disabled]
First Boot Device.....................: [USB-HDD]
Second Boot Device....................: [Hard Disk]
Third Boot Device.....................: [Disabled]
Boot Up Floppy Seek...................: [Disabled]
Boot Up Num-Lock......................: [Off]
Password Check........................: [Setup]
HDD S.M.A.R.T. Capability.............: [Disabled]
Limit CPUID Max. to 3.................: [Disabled]
No-Execute Memory Protect.............: [Enabled]
CPU Enhanced Halt (C1E)...............: [Disabled]
C2/C2E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.....................: [Disabled]
Virtualization Technology.............: [Disabled]
Delay For HDD (Secs)..................: [ 0]
Full Screen LOGO Show.................: [Disabled]
Bachup BIOS Image to HDD..............: [Disabled]
Init Display First....................: [PEG]
******** Integrated Peripherals ********
ICH SATA Control Mode.................: [AHCI]
SATA Port0-3 Native Mode..............: [Enabled]
Azalia Codec..........................: [Auto]
Onboard H/W 1394......................: [Enabled]
Onboard H/W Lan1......................: [Enabled]
Onboard H/W Lan2......................: [Enabled]
Green LAN.............................: [Disabled]
Smart LAN1............................: [Press Enter]
Smart LAN2............................: [Press Enter]
Onboard LAN1 BOOT ROM.................: [Disabled]
Onboard LAN2 BOOT ROM.................: [Disabled]
Onboard SATA/IDE Device...............: [Enabled]
Onboard SATA/IDE Ctrl Mode............: [AHCI]
Onboard Serial Port 1.................: [3F8/IRQ4]
Onboard Parallel Port.................: [378/IRQ7]
Parallel Port Mode....................: [SPP]
xECP Mode Use DMA.....................:  3
USB Controllers.......................: [Enabled]
USB Keyboard Function.................: [Disabled]
USB Mouse Function....................: [Disabled]
USB Storage Function..................: [Enabled]
******** Power Management Setup ********
ACPI Suspend Type.....................: [S3(STR)]
USB Device Wake-Up From S3............: [Enabled]
Soft-Off by PWR-BTTN..................: [Instant-Off]
PME Event Wake Up.....................: [Enabled]
Power On by Ring......................: [Disabled]
Resume by Alarm.......................: [Disabled]
HPET Support..........................: [Enabled]
HPET Mode.............................: [64-bit mode]
Power On By Mouse.....................: [Double Click]
Power On By Keyboard..................: [Disabled]
AC Back Function......................: [Soft-Off]
******** PnP/PCI Configurations ********
Resources Controlled By...............: [Auto]
PCI Latency Timer (CLK)...............: [32]
PC1 IRQ Assignment....................: [Auto]
PC2 IRQ Assignment....................: [Auto]
*********** PC Health status ***********
Reset Case Open Status................: [Disabled]
CPU Warning Temperature...............: [80�C/176�F]
CPU FAN Fail Warning..................: [Disabled]
SYSTEM FAN2 Fail Warning..............: [Disabled]
POWER FAN Fail Warning................: [Disabled]
SYSTEM FAN1 Fail Warning..............: [Disabled]
CPU Smart FAN Control.................: [Disabled]

So far I've booted into Windows fine and about to try a 5 loop LinX 2048MB test. If that goes well I'll run Prime95 blend and hope it makes it through the night!

[lukevega]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

I was holding my breath... The scores weren't great and the temperatures were scorching but it managed to pass 5 loops of Linx 2048MB at 3.8GHz! :)

[SmOgER]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

Increase CPU termination to some 1.36V
Vcore looks just about right for C0 3.8Ghz, albeit it varies per chip of course.

btw I suggest you turning on CPU TM (throttling) in BIOS. It might induce some instability when/if it kicks in, but it will prevent temps going over 85C.
Now 85C isn't necessarily extremely dangerous as the Q9550 is similiar chip and is programmed for 95C TjMax as opposed to 85C on X5460, but it's the TjMax nevertheless.
Your temps indeed seem quite high for these settings, I was hitting 80C max with 4Ghz 1.38v prime95 small fft, 30C ambient. OCCT standart stress test and with real life usage it heated up to low 60s.

[lukevega]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock

"The general recommendation is that VTT should be set at least 0.05 - 0.10 volts lower than Vcore". - This is why my CPU Termination is 1.260V as per professor Jim's recommendation...

I'm not sure if I've done enough thermal cycles to cure my TIM paste but I'm hoping they will go down soon, if not I will try re-applying and possibly do the stock heat sinks as well.

Those settings have just passed 8 hours of prime95 blend so I'll see how they cope with Large FTTs...

[lukevega]

Re: Socket 771 Mod Xeon X5460 GA-P35-DS3L Overclock