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1366 X58 Xeon 5650

Finally installed my X5650 earlier in the week. It's currently sitting happily at 4ghz with 24gb of ram installed.

VCore - 1.28
PLL - 1.81 (minimum I can input on a Rampage Extreme II)
QPI - 1.2 (again minimum I can input)

I did try it at 4.4ghz but had to stick the VCore up to near enough 1.4 plus the Pll and QPI up as well to near enough max. I don't think the ram liked to go above 1600mhz either.
 
BIOS flashed, CPU swapped and I'm in, working okay at stock, certainly runs cool at stock I'm at 40'c full load after 10 mins of prime95 on a Noctua D14.

Got an odd issue though, fails to boot regularly, after 'verifying DMI pool data' it does a DRAM test and then restarts (powers down and back up again). The BIOS is only seeing 4gb of RAM and Windows is showing "6.0GB, 4.0GB usable".

Anyone seen this before? The stock settings for my RAM were no good, it was at 1.5v whereas I run at the 1.65 it's rated for. Sorting that got it into Windows just now, but not sure what the issue is :(
 
Was worried that might be the case.

I get a shrill alarm sound if I try them in the other slots. No problems one at a time.

Doh.

Anyone ever bent them back? :)

I guess the other option might be just to run two sticks..
 
Officially jumping on the bandwagon as well, X5675 ordered. I'm also going to up the RAM to 12GB and grab a new case and PSU along with a Corsair H110, should be fun :).

I'm thinking of possibly picking up an M2 PCI express card at some point (something like the Plextor perhaps) to get around the rubbish Marvell SATA3 ports on my X58A UD3R as these supposedly have boot support built in. Just hoping they'll release a X4 version soon.
 
Hi Guy's,

I'm pretty sure this is the board I have -GA-EX58-UD3R rev 1.0, the Gigabyte website doesn't list the 5650 as supported until later versions, will this prevent me from using a Xeon or would it be just a case of checking i have the correct bios?

Thanks.
 
Hi,
Looks like there are a lot of knowledgeable folks on this thread regarding Xeon overclocking. I picked up an X5670 that I was hoping would be a nice upgrade to the i920 @ 3.8GHz that I've been running in a Gigabyte GA-EX-UD4P. I got it working at stock speeds but it won't overclock no matter what voltages I try. Any BCLK over 150 results in no POST. PC turns on but just sits there with a blank screen (no video output). The same thing happens if I try doing a restart from Windows or an ALT-CTRL-DEL. Cold boots are fine. I think this motherboard just does not play well with Xeons so I've pretty much given up running the X5670 overclocked in it but thought I'd give a shout out here in case anyone knows of any tricks that I could try as a last ditch effort. Thanks and much obliged.
 
@Zbyszko

we need more details :p, vtt voltages, ram speed etc...

Using F14q Beta Bios from Tweaktown. I tried max voltages of 1.35 QPI/Vtt, 1.35VCore, 1.2 ICH core and IOH, slowest memory speed multiplier (6x), 2x QPI ratio 12, even a 12x CPU multiplier, as soon as I try a BCLK > 150 it won't POST. I think this motherboard is just flaky with Xeons. Found at least 2 others with this motherboard that had the exact same issue with warm-reboots and not being able to OC above 150BCLK. Not sure if there is anything else that I could try, but I'm pretty certain the standard OC problems (Voltage too low, clock set too high, etc.) aren't the issue here.

I seem to remember that someone was able to flash this motherboard with the EX58-EXTREME BIOS, but not sure if that would even help and I can't find where I read that.
 
it defeats the purpose if you have to spend big on an x58 board. it only really makes sense for those that have x58 already. so I cant see anyone paying to much for it.
 
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