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  Topic Review (Newest First)
06-06-2020 12:18 AM
SYNCHRON1C
Quote: Originally Posted by forman313 View Post
Some of you might be struggling with these Xeons,wasting hour after hour hell bent on getting 4.4Ghz ++ stable.... like everyone else!? You should stop. "If something is hard to do, then its not worth doing" OFC Bearing in mind the $15 price tag. Turn the old one into a hotplate for reflow soldering, miniature still or sell it for thousands of dollars to an american cop. From what I hear, they are not very bright.
ATT: If you are very tan or have dark skin, you should consider mail or fedex.
Getting your Xeon to run 4.2++ might not be possible. Over the years I have tried just about everything with my two Xeons, both x5670.
I can get 4.1Ghz stable, but it means running 1.4v+ and uncore needs 1.32v for 2800Mhz. Nothing I try gets it stable at frequencies any higher than this. Sometimes it takes an hour and sometimes several days. Gaming, rendering or idling makes no difference. The bloody thing is probably waiting for me to enter a tournament or be one of the last two players in Warzone

Making sure the motherboard was working properly I installed my old 920. Within minutes I was running 4.2Ghz @ 1.35v stable and benchmarks at 4.4+. Its just wrong when you get higher clocks and lower voltages with an old C0 stepping from early 2008.

You are really unlucky with your chips. When I switched out my i7 920 that was overheating (90+C) at 3.8ghz to an x5675 that was handling 4.22ghz at 1.36v with less than 50C under load it was a night and day difference and felt like I was using an entirely new computer.

Either you have very poor chips or you are using bad BIOS settings.
06-05-2020 10:27 PM
PotatoVonEpicus
Quote: Originally Posted by raidmaxGuy View Post
Hmm, 20x mult, 200 BCLK, Uncore 16x 3205mhz, 1.3V CPU, 1.660V DIMM, MEMORY_MANAGEMENT, MACHINE_CHECK_EXCEPTION BSOD. Not wanting to push the memory voltage too much further... Was having similar issues with the old CPU...
Loosen RAM timings, start pretty high with 12-12-14-31-255-2T, if that doesn't help increase QPI PLL, max safe voltage for that is 1.4v i believe.
06-05-2020 07:37 PM
forman313 Some of you might be struggling with these Xeons,wasting hour after hour hell bent on getting 4.4Ghz ++ stable.... like everyone else!? You should stop. "If something is hard to do, then its not worth doing" OFC Bearing in mind the $15 price tag. Turn the old one into a hotplate for reflow soldering, miniature still or sell it for thousands of dollars to an american cop. From what I hear, they are not very bright.
ATT: If you are very tan or have dark skin, you should consider mail or fedex.
Getting your Xeon to run 4.2++ might not be possible. Over the years I have tried just about everything with my two Xeons, both x5670.
I can get 4.1Ghz stable, but it means running 1.4v+ and uncore needs 1.32v for 2800Mhz. Nothing I try gets it stable at frequencies any higher than this. Sometimes it takes an hour and sometimes several days. Gaming, rendering or idling makes no difference. The bloody thing is probably waiting for me to enter a tournament or be one of the last two players in Warzone

Making sure the motherboard was working properly I installed my old 920. Within minutes I was running 4.2Ghz @ 1.35v stable and benchmarks at 4.4+. Its just wrong when you get higher clocks and lower voltages with an old C0 stepping from early 2008.
06-05-2020 07:26 PM
raidmaxGuy
Quote: Originally Posted by PotatoVonEpicus View Post
20 it is then, 20x200 - 4 GHz - RAM divider 8 - 1600 MHz. Just use stock timings and stress test with Prime95, while using lower core multiplier so you can be sure that core is stable. With uncore you probably gonna want to stay at 3200 MHz.

Hmm, 20x mult, 200 BCLK, Uncore 16x 3205mhz, 1.3V CPU, 1.660V DIMM, MEMORY_MANAGEMENT, MACHINE_CHECK_EXCEPTION BSOD. Not wanting to push the memory voltage too much further... Was having similar issues with the old CPU...
06-04-2020 10:57 PM
PotatoVonEpicus
Quote: Originally Posted by raidmaxGuy View Post
Hmm, dont think this board allows higher than a 20x multiplier.. Uncore tops out at 60x I think turbo mode enabled pushes the target to 22x as CPU-Z reports 2918MHz 22x when it's on.
20 it is then, 20x200 - 4 GHz - RAM divider 8 - 1600 MHz. Just use stock timings and stress test with Prime95, while using lower core multiplier so you can be sure that core is stable. With uncore you probably gonna want to stay at 3200 MHz.
06-04-2020 08:57 PM
raidmaxGuy
Quote: Originally Posted by PotatoVonEpicus View Post
From my experience i noticed that odd multipliers do not give any benefit to stability or even ability to reduce voltage. If you gonna run RAM on lower frequency anyway then just go for 186 MHz on BCLK ( you will need to mess with less voltages ). Either 186x21 or 22, you can also try keeping QPI PLL on AUTO, 1860 MHz on RAM with looser timings should be fine. Before overclocking core just make sure your RAM and uncore can pass Prime95, 6 hours preferably.
Hmm, dont think this board allows higher than a 20x multiplier.. Uncore tops out at 60x I think turbo mode enabled pushes the target to 22x as CPU-Z reports 2918MHz 22x when it's on.
06-04-2020 12:34 AM
SYNCHRON1C Thanks guys, turns out 2 of the 6 sticks were faulty, which was somehow preventing some of the other fully functional sticks from being recognised in Windows (bit strange). Ended up just sticking 3x8GB sticks in triple channel which is enough for this system.


Only cleaned them using the pencil eraser method so might try getting some contact cleaner or doing the old steel wool trick on the faulty modules to see if I can get them working.


Cheers!
06-03-2020 10:01 AM
PotatoVonEpicus
Quote: Originally Posted by raidmaxGuy View Post
I've been messing with my overclock and it seems like I am better off than I was with my old 920 with this new x5650, but still have some issues dialing in and getting stability. Im booting up Windows, but it by no means works well.

CPU temp is pretty low, around 40C idle, dont think thats my issue.

Here's what I've set:

Mult: 19x
BCLK: 204MHz
Memory Freq: 1067 (2:8) = 1634MHz actual. Windows says on 6GB usable. 6x Mushkin 2GB 1600MHz 9-9-9-24-1T
Timings: 11-11-11-29-2T (want to tighten these up, currently the auto values)

CPU Vcore: 1.30V
VTT voltage: +50mV
QPI PLL: 1.350V
DIMM voltage: 1.625V

I have left everything else alone...

NB Temp at BIOS is 69-70C. CPU in BIOS is 27C, VREG 54C
From my experience i noticed that odd multipliers do not give any benefit to stability or even ability to reduce voltage. If you gonna run RAM on lower frequency anyway then just go for 186 MHz on BCLK ( you will need to mess with less voltages ). Either 186x21 or 22, you can also try keeping QPI PLL on AUTO, 1860 MHz on RAM with looser timings should be fine. Before overclocking core just make sure your RAM and uncore can pass Prime95, 6 hours preferably.
06-02-2020 06:41 PM
raidmaxGuy I've been messing with my overclock and it seems like I am better off than I was with my old 920 with this new x5650, but still have some issues dialing in and getting stability. Im booting up Windows, but it by no means works well.

CPU temp is pretty low, around 40C idle, dont think thats my issue.

Here's what I've set:

Mult: 19x
BCLK: 204MHz
Memory Freq: 1067 (2:8) = 1634MHz actual. Windows says on 6GB usable. 6x Mushkin 2GB 1600MHz 9-9-9-24-1T
Timings: 11-11-11-29-2T (want to tighten these up, currently the auto values)

CPU Vcore: 1.30V
VTT voltage: +50mV
QPI PLL: 1.350V
DIMM voltage: 1.625V

I have left everything else alone...

NB Temp at BIOS is 69-70C. CPU in BIOS is 27C, VREG 54C
06-02-2020 02:30 PM
xxpenguinxx I tried messing with QPI PLL but it didn't help. This is also an engineering sample so it may have some quirks.
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