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HP Pavilion 7420 - motherboard jumpers - TIA
Anyone have a layout or full explanation of "all" the jumpers on the
motherboard for this system? I need to know what jumpers J8B1 and J9B1 are for and what the normal pinning for these is. This looks like it was made by Intel for HP but I can't be certain short of taking the motherboard out and looking at the FCC number on the back (if there is one). Btw, this 7420 is HP model number D5248A. |
#2
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Here's what HP has, but there's no J8 or J9 just J1.
http://h10025.www1.hp.com/ewfrf/wc/d...ame= bph03549 "Kern" wrote in message . 3.44... Anyone have a layout or full explanation of "all" the jumpers on the motherboard for this system? I need to know what jumpers J8B1 and J9B1 are for and what the normal pinning for these is. This looks like it was made by Intel for HP but I can't be certain short of taking the motherboard out and looking at the FCC number on the back (if there is one). Btw, this 7420 is HP model number D5248A. |
#3
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Kern wrote:
Anyone have a layout or full explanation of "all" the jumpers on the motherboard for this system? I need to know what jumpers J8B1 and J9B1 are for and what the normal pinning for these is. This looks like it was made by Intel for HP but I can't be certain short of taking the motherboard out and looking at the FCC number on the back (if there is one). Btw, this 7420 is HP model number D5248A. .. It's an OEM Intel RU430HX. You can find the Intel Technical Product Specification and Specification Update he http://developer.intel.com/design/mo...ex.htm#ru430hx J8B1 is a Soft-Off Power Supply connector. J9B1 is not listed; I think you may have misread this marking on the board. |
#4
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"steven67@" wrote in
: Kern wrote: Anyone have a layout or full explanation of "all" the jumpers on the motherboard for this system? I need to know what jumpers J8B1 and J9B1 are for and what the normal pinning for these is. This looks like it was made by Intel for HP but I can't be certain short of taking the motherboard out and looking at the FCC number on the back (if there is one). Btw, this 7420 is HP model number D5248A. . It's an OEM Intel RU430HX. You can find the Intel Technical Product Specification and Specification Update he http://developer.intel.com/design/mo...ex.htm#ru430hx J8B1 is a Soft-Off Power Supply connector. J9B1 is not listed; I think you may have misread this marking on the board. The J9B1 jumper is indirectly referenced on the mobo drawing as a Flash Recovery jumper. And that is the only place it is referenced. This is a 6 pin jumper and how or if it is supposed to be used I guess becomes a guessing game if you feel so inclined. But I haven't seen anything that says that this mobo has a flashable BIOS so I gues it's moot point. Now for the more interesting question (to me). How did you figure out that this board was an RU430HX? This board is not listed in Intels supported boards in their desktop motherboards support area. Thank you for the quick reply. It is much appreciated. |
#5
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Kern wrote:
"steven67@" wrote in : Kern wrote: Anyone have a layout or full explanation of "all" the jumpers on the motherboard for this system? I need to know what jumpers J8B1 and J9B1 are for and what the normal pinning for these is. This looks like it was made by Intel for HP but I can't be certain short of taking the motherboard out and looking at the FCC number on the back (if there is one). Btw, this 7420 is HP model number D5248A. . It's an OEM Intel RU430HX. You can find the Intel Technical Product Specification and Specification Update he http://developer.intel.com/design/mo...ex.htm#ru430hx J8B1 is a Soft-Off Power Supply connector. J9B1 is not listed; I think you may have misread this marking on the board. The J9B1 jumper is indirectly referenced on the mobo drawing as a Flash Recovery jumper. And that is the only place it is referenced. This is a 6 pin jumper and how or if it is supposed to be used I guess becomes a guessing game if you feel so inclined. But I haven't seen anything that says that this mobo has a flashable BIOS so I gues it's moot point. Now for the more interesting question (to me). How did you figure out that this board was an RU430HX? This board is not listed in Intels supported boards in their desktop motherboards support area. Thank you for the quick reply. It is much appreciated. .. Three pins on one side of J9B1 are for BIOS recovery. The normal setting would be pins 1-2. Moving the shunt to pins 2-3 would enable BIOS recovery mode. BIOS Recovery instructions: http://developer.intel.com/design/mo...dardbios.htm#6 The three pins on the other side of J9B1 would be for BOOT Block write protect. The default position would be pins 4-5(protect). Moving the shunt to pins 5-6 would allow the BOOT Block to be programmed. The RU430HX is not listed in Intel's support area, because there were no retail versions. It was an OEM-only board. Intel does not provide end-user support for OEM boards. |
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"steven67@" wrote in
: Three pins on one side of J9B1 are for BIOS recovery. The normal setting would be pins 1-2. Moving the shunt to pins 2-3 would enable BIOS recovery mode. BIOS Recovery instructions: http://developer.intel.com/design/mo...dardbios.htm#6 The three pins on the other side of J9B1 would be for BOOT Block write protect. The default position would be pins 4-5(protect). Moving the shunt to pins 5-6 would allow the BOOT Block to be programmed. The RU430HX is not listed in Intel's support area, because there were no retail versions. It was an OEM-only board. Intel does not provide end-user support for OEM boards. Your info on the J9 jumper is most appreciated. Hopefully that will enable the boot screen to return as it is currently not coming up. But could you please tell me where you found the jumper positions information? It is not shown in the web page at the URL you gave and using search terms such as "Flash Recovery" were unsuccessful. I thank you very much for all the information you have provided. I would never have found this on my own. |
#7
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Kern wrote:
"steven67@" wrote in : Three pins on one side of J9B1 are for BIOS recovery. The normal setting would be pins 1-2. Moving the shunt to pins 2-3 would enable BIOS recovery mode. BIOS Recovery instructions: http://developer.intel.com/design/mo...dardbios.htm#6 The three pins on the other side of J9B1 would be for BOOT Block write protect. The default position would be pins 4-5(protect). Moving the shunt to pins 5-6 would allow the BOOT Block to be programmed. The RU430HX is not listed in Intel's support area, because there were no retail versions. It was an OEM-only board. Intel does not provide end-user support for OEM boards. Your info on the J9 jumper is most appreciated. Hopefully that will enable the boot screen to return as it is currently not coming up. But could you please tell me where you found the jumper positions information? It is not shown in the web page at the URL you gave and using search terms such as "Flash Recovery" were unsuccessful. I thank you very much for all the information you have provided. I would never have found this on my own. .. This 6-pin jumper block, found on your board at J9B1, was used on some other Intel boards of the same age. The Advanced/ML was another one that used it. |
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