Products > Test Equipment
Upgrading Mainboard in Lecroy DDA-3000 (aka WavePro 7300a?)
darkstar49:
--- Quote from: DaJMasta on June 30, 2021, 03:34:19 am ---The solution to the trigger knob lag was an 'upgrade install' of windows with the original media, though a repair install or a complete reinstall would have done the trick. Basically, because of XP's method of keeping track of single vs. multithreaded platforms, they can't always be switched back and fourth with equivalent functionality. So since I had used a Hyperthreading for the initial install of XP on this machine, it was configured to be a multithreaded machine, and then when I disabled HT, it still ran alright, but it wasn't properly configured to handle things, and that manifested in the trigger delay issue.
In any case, the front panel shows the right lights, the software works, and the unit is acquiring again. Been sitting on a shelf for a couple of years after it had issues the first time, happy to have it running again!
--- End quote ---
To my knowledge, XP uses another version of its kernel when being installed on a multi-CPU machine, so if you re-installed having disabled hyperthreading, it probably reverted to the single CPU kernel. I faced similar issues with a WaveRunner 6K, after a motherboard upgrade (i7)...
mophong:
I found one ECS 865GV-M3 mobo at a local store, it has 865GV chipset. The AGP slot on this board is AGP Express slot, does it work with Lecroy SDVO card?
sixtimesseven:
If you are wondering how a Wavemaster 8500 / DDA-5005 performs with win7 and a 2600k, I recorded a quick demo:
Mechatrommer:
--- Quote from: sixtimesseven on August 18, 2021, 06:35:50 am ---If you are wondering how a Wavemaster 8500 / DDA-5005 performs with win7 and a 2600k, I recorded a quick demo:
--- End quote ---
:-+ i tried and managed to install and run W7 on old motherboard long time ago, but W7 didnt recognize the lecroy driver, so that was a no go. can you explain in detail how you did the mod? what motherboard, what driver and how the LCD mod?
ollopa:
--- Quote from: ollopa on June 28, 2021, 11:26:02 pm ---Yes, I did get the AIMB-581 and NEC NL10276BC20-04 LCD working with a direct connection, but I had to request the generic BIOS from Advantech and acknowledge that I was responsible for it if it broke. My MB was pulled from some industrial machine with a custom BIOS and altered LVDS settings. With the unbranded BIOS I was able to select the correct configuration for the LCD.
--- End quote ---
I was recently asked about this so I will share more detail here. The BIOS setting I used for this is 1024x768 24-bit. The panel is only 18-bit however the motherboard uses the JEIDA mapping which puts the RGB24 LSBs all one one additional LVDS pair which can be ignored for an 18-bit panel.
I connected the ED0, ED1, ED2, and ECK pairs of the AIM-581 LVDS connector to the D0, D1, D2, and CK pairs of the NEC panel.
The AIMB-581 LVDS connector has two 24-bit LVDS transmitters: Even and Odd. The Odd transmitter is only used for 36 and 48 bit panels.
So, in summary, configure the BIOS for 24-bit but only connect the first three Even transmitter pairs to an 18-bit panel.
Stock V118 BIOS: https://drive.google.com/file/d/1pYCRyYS9eHQ3U_nVMwL5GTUDmNnpQSeK/view?usp=sharing
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