Products > Test Equipment
Upgrading Mainboard in Lecroy DDA-3000 (aka WavePro 7300a?)
nctnico:
--- Quote from: Mechatrommer on December 08, 2019, 04:45:06 pm ---But its a good practise to have D: storing user's data. If you crash C, you dont have to think to recover the files, you simply recover using backup utils,
--- End quote ---
A D: drive only makes sense if it is on a physically seperate drive. What you see is that the hard drive fails physically and you lose both C and D. The reason to put data on a seperate partition is kind of handy if you want to re-install the OS. In theory. In practise you can install Windows over itself or if you wish in a seperate Windows directory. There is no real advantage of having a seperate partition for data.
sixtimesseven:
--- Quote from: sergeyklenov on August 31, 2019, 07:18:32 am ---Using ATI video card with displayport. Nvidia no, because big current and power supply shutting down from time to time.
Adapt connector to internal use.
--- End quote ---
Thank you for your detailed post!
Could I ask how you adapted the display port from the Japanese card to the mainboard without gpu? As far as I can see your mainboard does not have a DP option?
sixtimesseven:
Has anyone ever tested adapting the "6Bit RGB" interface of the original display which seems to be a NL8060BC26-17 to somthing a more modern mobo might have?
Replacing the screen seems like a huge operation to me in particular because one has to mount the new display with a new frame...
sixtimesseven:
--- Quote from: Converter on March 13, 2019, 09:14:35 pm ---Obviously, as I said, here you cannot replace the fans with others that have less performance (if you replace them, then only with ones that are not inferior to these). LeСroy knowingly uses high-performance fans..
But I suppose that not everything is hopeless if you make use of larger diameter fans.
In this case, I recommend to look in the direction of the fan Noctua NF-A14 iPPC-3000.
This product is not inferior in performance ROTRON GL12B3, but you get 12.3 dB less acoustic noise.
If the data from their datasheets are reliable, then let's compare them:
Noctua has Max Airflow: 158.5 CFM (269.3 m³/h) at 3000 RPM, versus Rotron - 150.00 CFM at 3300 RPM;
Noctua Max Pressure: 0.414 in H₂O (10,52 mm H₂O), Rotron - 0.56 in H₂O (slightly more);
Noctua Acoustical noise 41.3 dB(A), Rotron - 53.6 dB(A);
Noctua Max. input current 0.55 A, Rotron - 1.30 A;
Noctua MTTF> 150,000 h, Rotron - 75,000 h;
Noctua Size 140x140x25 mm, Rotron - 127x127x38 mm
--- End quote ---
I have put together an adapter to get the 140mm fan on to the 120mm hole of the Rotron. Unfortunatly there is only about 30mm of space available for the air duct cone... Not tested yet so use with care:
https://www.eevblog.com/forum/testgear/replacement-knobs-feet-and-fittings-for-test-equipment/msg2831898/#msg2831898
sixtimesseven:
I found those Kingston sticks KTH-D530/1G but the bios won't even show up |O Burried in the Kingston site it says "system specific", great :palm:
Now, what does work and what 1GB memory modules did you use?
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