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Xeon E5310 on asrock g31m-gs motherboard 771 to 775 socket mod

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July 14, 2014 2:11:43 PM

Ive got a E5310 off ebay for 5$ and a as-rock g31m-gs motherboard for 30$ and the mod for 3$.I put it all together it didnt work i take the cpu out put in a e6400 core 2 dou and update the bios to version 1.9 and i take the core 2 dou out and put the xeon back in and it boots but in the bios it 1.2ghz not 1.6ghz i boot into windows and i see windows see the cpu but only 2 core i open cpu z it says e5310 but core temp says xeon 5110 but on all of them it says 2 core btw the cpu head was scratched but it said e5310. any ideas im going in blind

More about : xeon e5310 asrock g31m motherboard 771 775 socket mod

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July 14, 2014 2:35:17 PM

Check the bios's cpu section for proper setting of the fsb and cpu multiplier.
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July 15, 2014 12:18:54 PM

I'd start by adding the Xeon micro codes to your bios. Real easy to do because I think that's an AMI bios. Takes 3 minutes. Did it myself last night.

http://www.overclock.net/t/1431723/mod-lga775-support-f...

There's also fixes for the number of cores reporting, but start with the codes.
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July 15, 2014 3:56:11 PM

"I'd start by adding the Xeon micro codes to your bios. Real easy to do because I think that's an AMI bios. Takes 3 minutes. Did it myself last night.

http://www.overclock.net/t/1431723/mod-lga775-support-f...

There's also fixes for the number of cores reporting, but start with the codes."

Done the only thing that has changed is now my bios no longer say press f2 to enter.
How do i fix my cores and clock speed
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July 15, 2014 7:54:00 PM

I got the CPU back to 1.6ghz i had to move a jumper on the motherboard for it to to work it was at 800fsb not 1066fsb now all i need it my 2 missing cores then the cpu is fully working
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July 15, 2014 9:25:55 PM

The dreaded manual fsb jumper. I guess it cost less than a proper bios. What happens if you set it to 1333? Easy overclock?

This answer came from bailw on overclock dot net:

Go into MSCONFIG (CLick on Start, type MSCONFIG in the earch box, heit enter, in the window that opens click on the Boot tab, click on Advanced Options, in upper left, click the box and Select 4.

Otherwise, ive heard reinstalling windows fixes this too. A bit dramatic if you ask me.

Hope it helps.
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July 16, 2014 12:02:15 AM

skora said:
The dreaded manual fsb jumper. I guess it cost less than a proper bios. What happens if you set it to 1333? Easy overclock?

This answer came from bailw on overclock dot net:

Go into MSCONFIG (CLick on Start, type MSCONFIG in the earch box, heit enter, in the window that opens click on the Boot tab, click on Advanced Options, in upper left, click the box and Select 4.

Otherwise, ive heard reinstalling windows fixes this too. A bit dramatic if you ask me.

Hope it helps.

Alright I'll try that in the morning btw it's running a fresh install already.
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July 17, 2014 2:03:43 AM

Any luck with the cores reporting properly?

Was the install before or after the CPU upgrade?
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July 17, 2014 9:57:27 AM

skora said:
Any luck with the cores reporting properly?

Was the install before or after the CPU upgrade?


I installed again lass night still 2 core btw in the bios I see the cpu it's reported by the bios and the full cache shows up in the bios but in windows only half of the cache shows up in windows

It took me 3 try's of reseating the cpu in the socket to get it to post for the first time with the xeon
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July 17, 2014 6:46:05 PM

Have you tried reinstalling windows?
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July 17, 2014 7:02:25 PM

Yes i've tred both 32 and 64 plus i even installed os x 10.7 and it says the same stuff
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July 18, 2014 2:20:39 AM

I've read all 400+ pages of the thread at OCN and haven't heard of anyone getting half the CPU to work but not all of it. This definitely is a hardware issue and I'd look at 3 things.
1. Double check the socket modification. If you had to seat it 3 times before it worked, try again. Cut a little more back where the tabs were.
2. Double check the sticker alignment. Make sure other pads on the CPU are lined up with the holes in the sticker.
3. The CPU could be broken. If you have access to another 775 board, try it on that. If you don't want to modify another mobo, you can notch the Xeon to fit in a stock 775 board. It isn't pretty but I didn't notice any difference on the chip I did it to. Granted that chip didn't overclock before I notched it and still didn't after.
http://www.overclock.net/t/1431723/mod-lga775-support-f...

Or, since the Xeon was only $5, buy another one and see if that one works. If not, then you know its something with the mobo.
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July 18, 2014 9:03:45 AM

popatim said:
Have you tried reinstalling windows?


skora said:
I've read all 400+ pages of the thread at OCN and haven't heard of anyone getting half the CPU to work but not all of it. This definitely is a hardware issue and I'd look at 3 things.
1. Double check the socket modification. If you had to seat it 3 times before it worked, try again. Cut a little more back where the tabs were.
2. Double check the sticker alignment. Make sure other pads on the CPU are lined up with the holes in the sticker.
3. The CPU could be broken. If you have access to another 775 board, try it on that. If you don't want to modify another mobo, you can notch the Xeon to fit in a stock 775 board. It isn't pretty but I didn't notice any difference on the chip I did it to. Granted that chip didn't overclock before I notched it and still didn't after.
http://www.overclock.net/t/1431723/mod-lga775-support-f...

Or, since the Xeon was only $5, buy another one and see if that one works. If not, then you know its something with the mobo.

If I put the notch in the cpu I'll need to use a mill to get a nice cut but the I got the asrock board because it support quad cores I have a few 775 motherboards but the have a limitation of being dell,hp,Emachine I'll try reseating it later but before I installed the xeon or even did the mod to the board I was running a core to duo e6400 and after moding the socket the cpu would no longer post in the asrock board but I'm gonna test it in the emachine I pulled it from to test the asrock board NOTE THIS all parts in this build was a ebay find I got all the parts for a sum of 47$ I had the gtx 550 ti and psu before I built the pc and I have a pentium d 925 that's a 3ghz dual core and it was the first chip I ever tryed to overclock and you now it's a dual core but after my first attempt to overclock the cpu had a core die "ya my first idea to overclock was to up the core voltage right up to 1.5v on a evga 680i sli board that or it was a 780i sli it had 3 pci e x16 ports on it but back the post my full cache didn't show up In the 680i bios with the pd but with my xeon i see all the cache in the bios. Big note here I milo get have the 680i a power surge killed it back in 2010
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July 18, 2014 9:03:46 AM

popatim said:
Have you tried reinstalling windows?


skora said:
I've read all 400+ pages of the thread at OCN and haven't heard of anyone getting half the CPU to work but not all of it. This definitely is a hardware issue and I'd look at 3 things.
1. Double check the socket modification. If you had to seat it 3 times before it worked, try again. Cut a little more back where the tabs were.
2. Double check the sticker alignment. Make sure other pads on the CPU are lined up with the holes in the sticker.
3. The CPU could be broken. If you have access to another 775 board, try it on that. If you don't want to modify another mobo, you can notch the Xeon to fit in a stock 775 board. It isn't pretty but I didn't notice any difference on the chip I did it to. Granted that chip didn't overclock before I notched it and still didn't after.
http://www.overclock.net/t/1431723/mod-lga775-support-f...

Or, since the Xeon was only $5, buy another one and see if that one works. If not, then you know its something with the mobo.

If I put the notch in the cpu I'll need to use a mill to get a nice cut but the I got the asrock board because it support quad cores I have a few 775 motherboards but the have a limitation of being dell,hp,Emachine I'll try reseating it later but before I installed the xeon or even did the mod to the board I was running a core to duo e6400 and after moding the socket the cpu would no longer post in the asrock board but I'm gonna test it in the emachine I pulled it from to test the asrock board NOTE THIS all parts in this build was a ebay find I got all the parts for a sum of 47$ I had the gtx 550 ti and psu before I built the pc and I have a pentium d 925 that's a 3ghz dual core and it was the first chip I ever tryed to overclock and you now it's a dual core but after my first attempt to overclock the cpu had a core die "ya my first idea to overclock was to up the core voltage right up to 1.5v on a evga 680i sli board that or it was a 780i sli it had 3 pci e x16 ports on it but back the post my full cache didn't show up In the 680i bios with the pd but with my xeon i see all the cache in the bios. Big note here I milo get have the 680i a power surge killed it back in 2010
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July 18, 2014 11:46:37 AM

Railroadjohn said:

If I put the notch in the cpu I'll need to use a mill to get a nice cut but the I got the asrock board because it support quad cores I have a few 775 motherboards but the have a limitation of being dell,hp,Emachine I'll try reseating it later but before I installed the xeon or even did the mod to the board I was running a core to duo e6400 and after moding the socket the cpu would no longer post in the asrock board but I'm gonna test it in the emachine I pulled it from to test the asrock board NOTE THIS all parts in this build was a ebay find I got all the parts for a sum of 47$ I had the gtx 550 ti and psu before I built the pc and I have a pentium d 925 that's a 3ghz dual core and it was the first chip I ever tryed to overclock and you now it's a dual core but after my first attempt to overclock the cpu had a core die "ya my first idea to overclock was to up the core voltage right up to 1.5v on a evga 680i sli board that or it was a 780i sli it had 3 pci e x16 ports on it but back the post my full cache didn't show up In the 680i bios with the pd but with my xeon i see all the cache in the bios. Big note here I milo get have the 680i a power surge killed it back in 2010


Might be worth getting a magnifying glass and really checking the mobo socket. Look for bent pins or small pieces of plastic from cutting the tabs that may have found their way behind the pins. The E6400 should still work after this mod.

If you have used parts that are not tried and tested, then cross testing is the only way to know if the mobo or the cpu is at fault. Look for G31 or G33 mobos on those HP and dells. They might work, might not if they don't support any quad cpus. When they want them to be only dual core machines, they use less power components that the quads need. It saves them money.

I just used a hand dremel to notch mine. A router table would have been even better, but this can be done with a hand file if you have one small enough. Use the E6400 as a template to know where to notch and start small. Try it and keep shaving away little layers till it drops in the socket nicely.
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July 18, 2014 1:04:34 PM

skora said:
Railroadjohn said:

If I put the notch in the cpu I'll need to use a mill to get a nice cut but the I got the asrock board because it support quad cores I have a few 775 motherboards but the have a limitation of being dell,hp,Emachine I'll try reseating it later but before I installed the xeon or even did the mod to the board I was running a core to duo e6400 and after moding the socket the cpu would no longer post in the asrock board but I'm gonna test it in the emachine I pulled it from to test the asrock board NOTE THIS all parts in this build was a ebay find I got all the parts for a sum of 47$ I had the gtx 550 ti and psu before I built the pc and I have a pentium d 925 that's a 3ghz dual core and it was the first chip I ever tryed to overclock and you now it's a dual core but after my first attempt to overclock the cpu had a core die "ya my first idea to overclock was to up the core voltage right up to 1.5v on a evga 680i sli board that or it was a 780i sli it had 3 pci e x16 ports on it but back the post my full cache didn't show up In the 680i bios with the pd but with my xeon i see all the cache in the bios. Big note here I milo get have the 680i a power surge killed it back in 2010


Might be worth getting a magnifying glass and really checking the mobo socket. Look for bent pins or small pieces of plastic from cutting the tabs that may have found their way behind the pins. The E6400 should still work after this mod.

If you have used parts that are not tried and tested, then cross testing is the only way to know if the mobo or the cpu is at fault. Look for G31 or G33 mobos on those HP and dells. They might work, might not if they don't support any quad cpus. When they want them to be only dual core machines, they use less power components that the quads need. It saves them money.

I just used a hand dremel to notch mine. A router table would have been even better, but this can be done with a hand file if you have one small enough. Use the E6400 as a template to know where to notch and start small. Try it and keep shaving away little layers till it drops in the socket nicely.


I'll probably buy a xeon off ebay I'm wanting one that a quad core with a higher multiplyer so if I do I'll test it and post the out come I'll reseat the cpu in a few min
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July 18, 2014 9:53:08 PM

I reseated the cpu no change in windows or os x but in cpuid on os x it does report 4 cores
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July 18, 2014 11:03:44 PM

This seems like a socket mod issue. Can you post a pic of the socket (both with and without the CPU) and the sticker on the CPU?
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July 18, 2014 11:05:41 PM

skora said:
This seems like a socket mod issue. Can you post a pic of the socket (both with and without the CPU) and the sticker on the CPU?

I can tomorrow
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July 19, 2014 1:55:00 PM

skora said:
This seems like a socket mod issue. Can you post a pic of the socket (both with and without the CPU) and the sticker on the CPU?


I took the pics of it but I had a q9400 sitting on my desk I thought it was dead the mobo didn't post when I installed the first time I had the wrong fsb setting fixed it and the q9400 boots up like a champ I'll give up on my xeon for now but I'll probably just have fun with the core 2 quad I found 3 mouths ago for 20$ so I'm happy with it
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July 19, 2014 10:58:31 PM

I found out that some one cut the bottom of the xeon i think they cut a line on it.
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July 20, 2014 11:06:21 PM

Railroadjohn said:
I found out that some one cut the bottom of the xeon i think they cut a line on it.


I'm glad you have a quad to fall back on. Doesn't give back the time or alleviate the frustration trying to figure out whats wrong. I spent a lot of time and some extra money buying a second mobo because a dysfunctional CPU. And then I still had to go and buy another CPU. I too am happy with the end result, just wish it would have worked first time around.

How deep was the cut into the PCB? Did they take out any capacitors or resistors on the bottom?
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July 22, 2014 7:27:43 PM

It was 4 nm thick
across 2 pads
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