1366 X58 Xeon 5650

Vir · 12 May 2015 at 08:49

Received my X5670 yesterday, the only thing that I can't get to work is my RAM at its rated speed, 1600Mhz. It will not post. 1333Mhz is no problem. :rolleyes:

It's been at 1600Mhz for years with my i7 920.

I've seen other people also have this problem in this thread but I've not seen a solution. Anybody have an idea or is this normal behavior with a Xeon?

FYI: Latest bios.

Stu · 12 May 2015 at 10:21

The memory controller is onboard the CPU, so changing CPU always runs the risk of impacting RAM performance, and the X58 platform can be hit and miss with RAM speeds above 1333Mhz; however, others are running at 1600Mhz with these Xeon processors. What voltage and timings are you running?

Vir · 12 May 2015 at 10:25

Okay so if I understand correctly because the memory controller is on these chips, it could be the reason why now all of a sudden it won't work as this memory controller might not like it.

My timings are 9-9-9-27 (or 24) if I'm remembering correctly.
DRAM is at 1.65v set manually, that is what it's rated at that speed.

So I could try upping the voltage of the memory controller?
Loosen timings even more?

Stu · 12 May 2015 at 11:10

Are you running the CPU at stock speeds? I could up the RAM voltage slightly to 1.66v, but I would not go higher, as this is not recommended and should not be necessary.

Set the uncore and QPI multiplier manually to make sure nothing weird is being selected. You could also try bumping up a QPI voltage a little (max 1.35).

I know this is a huge thread, but this issue has come up before, so please take the time to look back over the previous posts.

Stu · 12 May 2015 at 11:11

Double post

Vir · 12 May 2015 at 11:24

Stu, I have actually looked through the whole thread and send TomB a message, there is no solution to this problem in this thread, just talk of it.
I'll do the settings tonight when I get home and report back, thanks for your input!

So, little update, got it on auto to 4.4Ghz, it's putting the vcore at 1.336v, so when this seems stable I'll try and lower it.
RAM won't do 1600Mhz so I set it to 1200Mhz.

Getting 990 on Cinebench CPU so that is ok I guess.
Looking forward to DirectX 12

Ste · 14 May 2015 at 06:53

Anyone know if a gigabyte UD3R with a X5670 will run ECC RAM? Seems to be a lot cheaper at the moment.

It's PC12800r which I believe is 1600mhz?

If supported would there be any ratio issues or overclocking issues, would like to keep 205 bclk for 4.5ghz...

Thanks

tribz · 14 May 2015 at 08:19

Vir said:
Stu, I have actually looked through the whole thread and send TomB a message, there is no solution to this problem in this thread, just talk of it.
I'll do the settings tonight when I get home and report back, thanks for your input!

So, little update, got it on auto to 4.4Ghz, it's putting the vcore at 1.336v, so when this seems stable I'll try and lower it.
RAM won't do 1600Mhz so I set it to 1200Mhz.

Getting 990 on Cinebench CPU so that is ok I guess.
Looking forward to DirectX 12

When I had 1333 memory overclocked to 1600, I had to use the below settings or it wouldnt be stable. Think it might have been the QPI/DRAM voltage but cant remember as I've replaced that memory now ...

http://forums.overclockers.co.uk/showpost.php?p=26833506&postcount=207

mushtafa · 14 May 2015 at 10:55

Such a shame I didn't jump on a Xeon when I first saw this thread. Prices are still going up, hopefully they'll start dropping again once demand has been met.

Kurgen · 14 May 2015 at 21:46

dont know if anyones interested but you can get hold of1366 supermicro boards on certain auction sites for £39, i bought one along with an £18 quad core xeon and it flies.. although as its a serverboard i had to cut the locking notch off the graphics card as the pci express socket has an extra edge connector.. i dont think you can overclock on it either and theres no on board sound.. but you cant have everything.

Kelt · 15 May 2015 at 16:44

mushtafa said:
Such a shame I didn't jump on a Xeon when I first saw this thread. Prices are still going up, hopefully they'll start dropping again once demand has been met.

Well they're around £70 on fleaday so still an utter bargain.

mushtafa · 15 May 2015 at 20:39

They're cheap for what they are, but they used to be £40-£50 delivered

Ste · 18 May 2015 at 21:18

They're still going for 50 odd now and again

DragonQ · 19 May 2015 at 09:01

My partner doesn't believe me when I tell her my older machine (see signature) is faster than her stock i5-2500K.

Stu · 19 May 2015 at 11:00

I'm going to the US in a couple of weeks and thinking of getting a couple of Xeons over there. I'll bin them against my current x5650, pick the best. In the US, the best prices seem to be around £50 for a 5650, £55 for 5660, £70 for 5670, and £80 for a 5675. The x5660 looks to be the sweet spot, and my target spend was £50 when I first got my x5660, so spending £70 on a 5670 now seems unnecessary. Think this is worth the effort and expense?

triss · 19 May 2015 at 11:16

Stu said:
I'm going to the US in a couple of weeks and thinking of getting a couple of Xeons over there. I'll bin them against my current x5650, pick the best, and sell on the remainder. In the US, the best prices seem to be around £50 for a 5650, £55 for 5660, £70 for 5670, and £80 for a 5675. The x5660 looks to be the sweet spot, and my target spend was £50 when I first got my x5660, so spending £70 on a 5670 now seems unnecessary. Think this is worth the effort and expense?

If i was you i'd be going for at least the 5675 up purely for the higher multi or i wouldnt bother

Stu · 19 May 2015 at 12:29

triss said:
If i was you i'd be going for at least the 5675 up purely for the higher multi or i wouldnt bother

My mobo can handle a 200 blck, but I don't think the system will hold 23 x 200 (and even higher when turbo kicks in)!

triss · 19 May 2015 at 13:09

Stu said:
My mobo can handle a 200 blck, but I don't think the system will hold 23 x 200 (and even higher when turbo kicks in)!

Yes but with a 23 mult you could drop that Blck to 190 or so might be easier on your board?

Stu · 19 May 2015 at 16:47

Should I expect a 5675 to overclock higher than a 5660? Is the multi and blck most important, or the final speed? I've seen people say that the 5675 and 5650 have the same raw overclock potential, and it is a silicon lottery. I appreciate that a higher multi will give me more flexibility.

My current x5650 will do 4GHz with high voltage (I'm on air)... will I really gain much with 4.2GHz? I think my goal is to achieve a comparable overclock with lower volts rather than a bigger overclock (though both would be nice). I'm not sure that the x5675 justifies the extra £25 (50% more than x5660), but I'm open to persuasion!

triss · 19 May 2015 at 22:35

Some is silicon lottery some is your board etc.I'm at 4.1ghz E5649 @215x19 with loaded cores and doesn't get past 72 with a old H50, 4.3 if i dont use every core disabled the other turbo bins as it was shooting past 4.7 at one point and would blue screen if left for a hour or 2 idle, was fine in use. I have run t at 222 blck but really 220 blck for my board is getting to max hence backing it down to 215. IMO your 4 aiming for 4.2 wont show other then in benchmarks but if u can get one to 4.4+ then you can feel/see the difference a bit more. My Xeon needs more volts than my 960 did But it is much cooler running those volts
All comes down to your disposable income and how much you like to play