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[MOD] LGA775 Support For LGA771 Xeon CPUs - Page 282

post #2811 of 12376
Something to add:

It may sound DE-facto but some things you must obey:

a) always turn off the power of the PSU. Then proceed to the removal of the cpu and install the new. Never with the PSU having power.
b) it is way better to remove the motherboard from the case, then place it on a table and cut the socket tabs.
c) don`t forget to plug all power connectors.
d) on Asus boards a message that "new cpu is found Press F1 / F2" should appear. You have to press F1, load setup defaults, then save and exit.
If that message does not appears then try the following. Power off the PSU. Then power on and turn PC on. As soon as you power on keep hitting DEL like crazy. It should POST. Repeat if necessary. Then load setup defaults, save and exit.
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post #2812 of 12376
Quote:
Originally Posted by omari79 View Post

anyone can confirm or deny Gigabyte EP45-UD3R's compatibility with this mod?

I'm currently running X5450 @ 4gHz on EP45-UD3LR. CPU and M/B seem to be in love at first sight.
post #2813 of 12376
post #2814 of 12376
Advice Sought:

Suggestions for the best Low Power 80W or less Quad Core Xeon to put in a Asus Striker II NSE (1600 FSB) for overclocking purposes. I came to the conclusion (maybe mistakenly) that going with a native 1600 Chip would provide less opportunity so looking at 1333 chips. Chip must have VTx capability.

Board will have 4GB of DDR3 1333 already proven to be capable of being pushed to 1600 with no stability issues. Have excellent cooling in place.

These are what I came up with but may have missed something in the specs.

50W L5430 @ 2.66 8 x Multiplier (Poss 3.2 Ghz @ 400 FSB)
80W E5450 @ 3.00 9 x Multiplier (Poss 3.6 Ghz @ 400 FSB)

Any advice and guidance on Voltage settings to achieve the above, just considering taking first steps away from [auto] settings.

Be kind, I am still very new to this OC world!

Cheers
Spart
Edited by sparticle - 3/29/14 at 5:09am
post #2815 of 12376
Both cpu's are fine, just buy whatever is the cheapest processor. The E5440 is also nice and often alot easier and cheaper to find than the E5450.

Between those two cpu's the E5450 will be easier to overclock due to the higher multi. Also a possible fsb wall of a motherboard will be less of a problem with a higher multi.
Both cpu's will probably be using the same amount of power when you overclock them to 4GHz for example. In the post above you, you can see a L5430 running 4GHz at 1.288v, which is about the same what my E5450 uses at 4.05GHz.

And you are right that going with a native 1600 xeon xcpu is not the best choice for overclocking. This is because all the 1600 xeons have a lower multi compared to their 1333 counterparts.
Also all 5400 series xeons support VTx, so you don't have to worry about that. But you might need to edit/flash your bios to make use of VTx and SSE 4.1.
Edited by Rutger - 3/29/14 at 5:48am
post #2816 of 12376
From my experience the difference in Vcore between L, E and X series is the following:

L54xx run either idle or full load at the base Vcore. So Vcore does not get increased when working at full load.
Usually they can be undervolted and run at even lower Vcore even at full load. I have one that can work at 0.952V while another can do 0.992V

E54xx run at base Vcore at idle and at a little more at full load. So they can lower its voltage for less power consumption, less noise.
Usually they can OC a lot still at low Vcore. Not all, but some can.

X54xx run at the full load Vcore of the E54xx when at idle and when at full load then they raise the Vcore more.
Not energy efficient, lots of cooling needed, lots of fan noise.
Usually they OC good but need a lot more Vcore than an E54xx at the same speed.


So I guess it depends on the case.
Need a 24/7 system? -> L54xx
Need a fast system with no compromises? -> E54xx
Need a cheap fast system? -> X5450
Need the highest multiplier? -> X5460/70
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post #2817 of 12376
@Rutger @ Patentman

Many thanks for your replies. I think you have confirmed my thinking. Yes this one will be run 24x7 all of mine are! I do like the L5430 I have one running in a Gigabyte GA-G41MT-D3 rev 1.3 board. With microcode update. Works really well and rock solid, but no OC potential in that one due to MB limitations. I had a Dual Core E5500 OC'd at 3.6 Ghz before!

I run linux exclusively on all my machines and servers.

This board (Striker II NSE) will replace the G41or it will be a Gigabye EP45C-DS3R that I have acquired. I am going to test both boards with the target cpu. Probably an E5450 if I can find one at the right price. L5430's have just about doubled in price since I bought mine, should have bought 2, I did think about it.......

I have a chance to buy a few E5472's very cheap but they don't look so good (7.5 1600 FSB) and the Lower Power ones would seem to be much better for my purposes and able to take advantage of the myriad MB OC options..

I have good cooling so not worried about that. And also not looking to squeeze every ghz out of them. Just a (with prejudice OC) that's reliable (No Extreme Prejudice) that max's my opportunity with the system with my use case.

Thanks for your insights.

Also, looking to understand the platform codes against the CPUID microcode updates. i.e

L5430 is a 1067a processor but there are 3 microcode updates :

cpu0001067a_plat00000044_ver00000a0b_date20100928.bin
cpu0001067a_plat00000011_ver00000a0b_date20100928.bin
cpu0001067a_plat0000000a_ver00000a0b_date20100928.bin

Same for the E5450 (QFUF, SLBBM) E0 Stepping 1067a

But for the E5450 SLANQ C0 stepping 10676

cpu00010676_plat00000080_ver0000060f_date20100929.bin
cpu00010676_plat00000040_ver0000060f_date20100929.bin
cpu00010676_plat00000010_ver0000060f_date20100929.bin
cpu00010676_plat00000004_ver0000060f_date20100929.bin
cpu00010676_plat00000001_ver0000060f_date20100929.bin

Do I need to add all of the options, to cover the various steppings? What do the platform codes mean?

Cheers
Spart
Edited by sparticle - 3/29/14 at 8:01am
post #2818 of 12376
which E5450 stepping/revision should i go with?
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post #2819 of 12376
Quote:
Originally Posted by omari79 View Post

which E5450 stepping/revision should i go with?

SLBBM ONLY (E0)

Be very careful, dostum:

Before you buy, ask the seller to provide you with pictures of the CPU and make sure it says SLBBM.

People here have been conned at e-bay by dishonest sellers. Dishonest sellers provided pictures of chips marked SLBBM, but actually sold them SLANQ chips (C0 stepping). biggrin.gif
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post #2820 of 12376
Quote:
Originally Posted by omari79 View Post

which E5450 stepping/revision should i go with?

My understanding is that you can use the C0 10676 CPU's but need the correct microcodes 10676 not 1067a. See my post above. Obviously the E0 stepping CPU's are newer and superior.

Cheers
Spart
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