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[M] - MSI 790FX-GD70, secret features [M] - MSI 790FX-GD70, secret features
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[M] - MSI 790FX-GD70, secret features
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Old 5th May 2009, 19:46   #1
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Default [M] - MSI 790FX-GD70, secret features

I just got this heads-up from the HQ of MSI and it seemed quite interesting to share, especially for the extreme overclockers.

1) CPU Temp and Digital LED

The MSI 790FX-GD70 has a 2-digit debug LED on the PCB. When you upgrade to BIOS 1.35 beta (later 1.3 final) it can also display the temperature. In fact, it's possible to show other information such as system temperature, ... But, CPU temperature is probably the most interesting feature for the overclocker.



2) Voltage readout points (for DMM)

a) NB PCIE Voltage, memory Voltage and NB HT Voltage
--- Near DRAM, under heatpipe



b) NB Core Voltage, SB Core Voltage
--- Near SB chip, covered by heatsink



c) CPU Voltage, CPU NB Voltage
--- Near Debug LED

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m-msi-790fx-gd70-secret-features-debug.jpg m-msi-790fx-gd70-secret-features-volt-mem.jpg m-msi-790fx-gd70-secret-features-volt-sb-core.jpg m-msi-790fx-gd70-secret-features-volt-cpu-core.jpg
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Old 5th May 2009, 19:47   #2
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Newspost worthy, John?
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Old 5th May 2009, 19:49   #3
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I'm ahead of you
[M] New MSI 790FX-GD70 Beta BIOS adds CPU temp on LED display
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Old 12th May 2009, 16:36   #4
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I just got this motherboard. Got everything installed and working. Updated BIOS to latest on MSI site and now it won't post. lights all come on and fans working. Display shows "FF" which is not in the error codes in the manual.

I thought M-flash would always let you boot and then fix corrupt bios or install a new one?
 
Old 12th May 2009, 16:44   #5
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What does MSI support say?
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Old 12th May 2009, 17:03   #6
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Their support center was so confusing I just RMA back to newegg and get another. It has not left yet so if anybody has any ideas I would rather not wait to get a new one back.
 
Old 12th May 2009, 17:05   #7
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CMOS clear, unplug power, re-mount memory?
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Old 12th May 2009, 17:22   #8
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I tried the CMOS clear button. Shorted the pins, etc. Nothing. I just got off the phone with their tech support and the guy said to just return it.

I thought M-flash was supposed to let you replace a corrupt bios?
 
Old 13th May 2009, 20:17   #9
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Aeroman, I have forwarded your question to the MSI tech guys and they gave me this response:

About M-Flash. M-Flash actually has 4 functions:

1) Flash the BIOS from within the BIOS replacing your DOS util
2) Save / backup a BIOS to USB / HDD
3) Boot a 2nd BIOS from a USB key
4) BIOS recovery

If I'm not mistaken, you're already familiar with the functionality of the first three options, so let's focus on the bios recovery first.

Normally, it's like this: a motherboard has 2 different physical bios chips. If one gets corrupted due to an incorrect flashing procedure, the other one repairs the first one.

MSI implented it like this: since a bios consists of various blocks (eg boot block and data block), the M-Flash utility can indeed be used as a repairing tool. For instance, when you have errors during the flash, it's possible that only the data block (=actual bios data) is corrupt, but the boot block untouched. In this case, the system will boot up and ask you to insert an USB key on which a bios is located to repair the bios.

Chances of having the boot block corrupted are, apparently, quite slim since it's only a very small part of the bios.

For more info: http://www.msi.com/index.php?func=te...&express_no=81
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Old 13th May 2009, 21:11   #10
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Thanks much Massman. Unfortunately, I could get to nothing. After flashing all I got was black screen. No post beep. Just lights on and fans running. Just FF on the LED display. Whatever I did completely hosed the route into the bios to get at Mflash.

I must have hammered the boot block.
 
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