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  #1 (permalink)  
Old 22nd June, 2003, 08:55 AM
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8RGA+ / 8RDA+ , Vreg chip mod & OC with low vcore...

I want to try it, but I' m not sure. I need more information about OC benefits with low vcore. ( not too low 1.5 -1.8v)

Has anybody tried this mod?

A guy has some interesting post;

Quote:
Well, after replacing the 2400+ with a DLT3C 1700+, I was rather impressed - the chip did 2.2GHz at 1.5v. For some reason, however, above 1.65v the motherboard's overcurrent protection circuitry would shut down the board on this chip. The 2400+ did not exhibit any of these problems - I could run it up to 2.2v and the board would not shut itself off.

All I know is that the heatsinks I put on the voltage regulator were not hot even at 1.95v with the 2400+. They were also cool with the 1700+, initially.

After cutting pin 2 on the vreg IC, however, the MOSFET heatsinks were hot even with the chip running at 1.5vcore. Active cooling helps and Ive replaced the 80mm beta sl with a 120mm sunon on the MCX462+, overhanging the vreg area. That 1700+ is a sweet chip, it'll do 2.4GHz at 1.85v even if it's running at 47-50C load.

Yet another person's testament of this mod - do NOT do if you do not have the voltage regulator heatsunken and with active cooling!.
http://www.xtremesystems.org/forums/...?threadid=8344
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Last edited by crabzero; 22nd June, 2003 at 08:58 AM.
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Old 22nd June, 2003, 08:59 AM
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this was the case with my very first 8rda... i did it but it didnt help.. RMA if u can
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Old 22nd June, 2003, 09:04 AM
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If the product runs to specification it is not RMA'able
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If you need EPoX BIOS eeproms in the UK, goto http://www.epox.org.....................
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Old 22nd June, 2003, 09:07 AM
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Thanks for quick replies, actually my 1700+ (dlt3c) is not totaly stable even with 1.8 volts. There is random resets, freezes. I' m confused.
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Old 22nd June, 2003, 10:36 AM
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Disposable Hero I need your help urgently;

Is the pin 16 on the upside ?
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Old 22nd June, 2003, 10:38 AM
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Identify it from the notch or dot in the package being at the pin 1 end.
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Old 22nd June, 2003, 10:46 AM
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Thanks ET, I found that. It's on the upside. I' m gonna do it
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Old 22nd June, 2003, 11:11 AM
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Thank God... That was really hard, but I did it.

First impression;
- No more vcore fluctuations ( before 1.65 - 1.73, now 1.70 - 73)

I will try some oc and I will write the results.


Edit: There is no difference with OC, but stability is ok. I was having random reset problems before the mod. ( now it' s ok)
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Last edited by crabzero; 22nd June, 2003 at 11:32 AM.
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