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27th May 2005, 07:43 | #1 |
Member Join Date: Mar 2004
Posts: 15,738
| URGENT - DFI Admits 5Volt Vdimm Problem!!! If some of you are not aware, the DFI Nforce 4 Ultra/D/DR SLI models has a jumper setting onboard that allows you to increase the voltage supplied to the ram from 3.3 volts to 5 volts. This gives users the option to go above 3.2 volts in the bios. I just spoke to Frank Wong at DFI USA about the major problems people are getting with the 5Volt Vdimm jumper setting on these motherboards. His response is very disturbing. Mr Wong basically informed me that DFI R&D in Taiwan know about this issue and have been testing this setting with different major branded ram, and that the 5 volt setting is causing and i quote "Major Issues". If you own 1 of these boards, and have the jumper set to 5 volts, change it now back to the 3.3 volt setting. Link to thread: http://www.bleedinedge.com/forum/sho...0270#post90270
__________________ lazyman Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II |
27th May 2005, 08:41 | #2 |
Member Join Date: Mar 2004
Posts: 15,738
| I am wondering whether the issue is setting the jumper to the high voltage or setting it to >4 Volt afterward. You could set to the lowest 3.3 or 3.4; does this have the same effect? Scary warning to folks must run on hight voltage.
__________________ lazyman Opteron 165 (2) @2.85 1.42 vcore AMD Stock HSF + Chill Vent II |
27th May 2005, 09:00 | #3 |
Posts: n/a
| What does that mean exactly? If i want ot set the RAM voltage to 3.6V will I be OK? |
27th May 2005, 09:18 | #4 |
Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 79,020
| you should not set your memory >4v. period.
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27th May 2005, 09:23 | #5 |
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| That I know. But will it be ok if i never exceed 3.6 ? |
27th May 2005, 09:27 | #6 |
Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 79,020
| have not read any bad experiences about this ; www.xtremesystems.org should be a good source that
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27th May 2005, 09:32 | #7 |
Posts: n/a
| did a search but nothing about frying your RAM on DFI boards came up. I'll be watching that space though:excellent |
27th May 2005, 15:21 | #8 |
Posts: n/a
| luckely you can use a pin trick + PSU with variable lines to achieve 3.2Vdimm+ values without compromising stability . The trick is also on XS if your interested . |
27th May 2005, 16:13 | #9 |
Member Join Date: Jun 2004 Location: mechelen(belgium)
Posts: 2,037
| when i got the dfi lanparty here with some ocz vx mem, the mobo fried 3 pins of the memory sticks. there are some people on xs that has the same situation never got the mem above 3.5V
__________________ watercooling, chilled water,direct phase change, cascade, custom modding |
27th May 2005, 16:26 | #10 | |
Posts: n/a
| Quote:
note that i'm talking about the good chips ( winbond ) | |
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