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MSI 785G-P45 motherboard and voltage instablity

post #1 of 13
Thread Starter 
Hello,

I recently assembled a pc which had a,

MSI 785GM-P45 motherboard,

AMD athlon II x4 635 @ 2.9 ghz processor

ATI HD 5750 Sapphire gpu

2x2gb Kingston ddr3 RAM running at 1333 Mhz

and a Corsair 600w CX600 PSU


Even though i had let all the settings remain at factory settings, and didnt overclock it at all,
This Pc has been quite unstable, and it randomly restarts when i run games or when i leave it on for a while, It even gave me a "hyper transport sync flood error" .
After a quick google search, i find out that it was caused due to lack of voltage to the Ram or something like that.

So i increased the voltages in the Cell Menu in the BIOS for , CPU, CPU-NB and RAM , by around 1-1.5v each.

This made it MUCH MORE stable. But, it still does occaissonally crash after 2-3 hours of running it. i have not overclocked any part of the comp , except for increasing the voltages as required.

Any suggestions plz? this problem has been plaguing me for the past 2 months
Edited by Digitaladdiktion - 4/12/11 at 2:51am
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post #2 of 13
Please fill out the system specs and list the current voltages reported by your bios settings.
post #3 of 13
Might be the generic RAM holding back
post #4 of 13
Thread Starter 
i've put the system specs in my signature. hope that should do.
According the the BIOS, current volatages are:-

CPU Vcore 1.368v
3.3v - 3.280v
5v - 5.016v
12V - 11.968v

Temp:-
Idle
CPU - 51 c / 123 f
System Temp - 42c/107 f


Regarding the Memory in use, it has been certified as OK by the manufacturers of both the Motherboard and the Memory manufacturers, i.e Kingston and MSI. It is rated at 1.5v , it however runs somewhat stable only at 1.7v which is rather disturbing.

The stock voltage settings were:-
CPU voltage - 1.355V
CPU-NB Voltage - 1.112v
DRAM voltage - 1.5v

However, i increased the voltage now to,

CPU - 1.370V
CPU NB -1.127
DRAM - 1.710

it runs much more stable at these settings.

The ram in use, is 2 of Kingston KVR1333D3N9/2G
Detailed specification of Ram. (Standard 256M X 64 Non-ECC 1333MHz 240-pin Unbuffered DIMM (DDR3, 1.5V, CL9, FBGA, Gold)
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post #5 of 13
Quote:
it however runs somewhat stable only at 1.7v which is rather disturbing.
1.7V for 1333 CL9?
Then it is defective, 1333 CL9 should never require more than 1.5V unless rated as so. RMA the RAM.
post #6 of 13
"hyper speed transfer protocol error once" is 1 of 2 things.
1) CPU-NB voltage need to be a little higher.
2) BAD mobo.
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post #7 of 13
Thread Starter 
I'm srry i meant "hyper transport sync flood error " not "hyper speed transfer protocol error once"..

and, i'm not sure if i'm allowed to post outside links in this page, but
http://forums.amd.com/forum/messagev...threadid=88140

that thread talks about the same error, and how it occurs.

except that i have not overclocked this pc at all. the settings are stock.

Here is a person who claims to have solved the HTSFE error, Credits to Mastiffman2007.

"Hey Gang,
Is everyone that's getting this error have even a mild OC or more on their rig?

I know that I do but I also know that it didn't start until I reached higher OCs with my 965 that I just installed.

So being that it's a "SYNC" error of the Hypertransport, then maybe it's because of the OCing. Or maybe it's the BIOS. I'm going to switch back to an older BIOS by the weekend or maybe this afternoon if I get time and see if the error presents itself again with the identicle setting as these newer BIOS. If it doesn't then I would assume that it's a BIOS Issue. Maybe with Coding...

EDIT: OKAY, FOUND OUT THE CULPRIT of this Hypertransport Sync Flood Error.

Did some testing on the CPU, CPU-NB, HT and Ram.

The CPU was ONLY component that reproduced the HTSF Error.

When not enough volts are being provided to the CPU it will reboot at any time (Especially during heavy to max loads) with either a black screen or verticle lines right before rebooting. While posting you see this messege.

"hypertransport sync flood error has occured. Press F1 to resume"

So there are a number of Scenarios that may cause this BUT they ALL lead back to the main reason. Not enough power to the CPU at the time that the heavy load produces failure.

1. To high of an OC without the ample amount of CPU volts.
2. Plain, not enough CPU Volts at any speed.
3. Possible Bad power supply.
4. Motherboard with very high amount of VDroop which ultimately leads back to "Not Enough CPU Volts". This will reveal itself with a load on the CPU. Maybe not during typical use. Could just be that the motherboard has CPU power providing issues as well (Good power from PSU but motherboard wastes the power before reaching the CPU).


Hope that this helps someone out!

"
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post #8 of 13
i have your same mobo, let me know if I can help

I like the board alot but it is tricky on some things.
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post #9 of 13
Thread Starter 
Well, after trying out various options, i tried to flash to a new BIOS. Unfortunately it failed, ( think i may have flashed to a wrong version or something) and now it just beeps 4 times and doesnt Boot. i Tried the AMI Bios recovery method, but since i dont have a floppy disk i tried it with a USB drive. This didnt work. Sigh, looks like i'll have to get a new board now.
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CPUMotherboardGraphicsRAM
AMD athlon II X4 635 MSI 785GM-P45 Sapphire HD5750 2x 2gb kingston dd3 1333Mhz Ram 
Hard DriveOptical DriveOSMonitor
Seagate 500gb LG 24x DVD writer Windows 7 professional 32 bit lg w2261vp ( 1080p 21.5 inch) 
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Genius Slim star 305 Corsair CX600 600w Cooler Master Elite 310 Razer Deathadder 
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AMD athlon II X4 635 MSI 785GM-P45 Sapphire HD5750 2x 2gb kingston dd3 1333Mhz Ram 
Hard DriveOptical DriveOSMonitor
Seagate 500gb LG 24x DVD writer Windows 7 professional 32 bit lg w2261vp ( 1080p 21.5 inch) 
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post #10 of 13
Quote:
Originally Posted by Digitaladdiktion View Post
Well, after trying out various options, i tried to flash to a new BIOS. Unfortunately it failed, ( think i may have flashed to a wrong version or something) and now it just beeps 4 times and doesnt Boot. i Tried the AMI Bios recovery method, but since i dont have a floppy disk i tried it with a USB drive. This didnt work. Sigh, looks like i'll have to get a new board now.
why didn't you just download the Live Update thing from MSI?

It updates your BIOS within windows.


And I am sorry to hear about your board, I personally like the board as it is a good mid range overclocking board, it just isn't a 4GHZ type board IMHO.
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