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#11
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Recovering UEFI boot entries after clear CMOS
On Wed, 26 Apr 2017 04:26:50 -0000 (UTC), Diesel
wrote: The second BIOS chip isn't a full fledged duplicate, based on the boards i've seen so far. Not saying one doesn't exist, just that I haven't, personally run across it yet. The secondary BIOS exists to get the machine up (post) and allow you to reflash the firmware damaged actual BIOS. It's a second layer of defense to keep you from accidently turning your board into a paperweight. Some of us have the required hardware to be able to pull the dead BIOS and reflash it outside of the mainboard, but, this can't always be done easily. If the chip is soldered, the chances are much smaller. If it's removable, the chances are better. That may be a possibility, to a limited extent of the other BIOS chip. If it does save a corrupted BIOS, then at least beggars needn't be choosy;- I've personally never encountered a bad BIOS situation (out of umpteen dozens of MBs I've bought or worked with). Neither is a CMOS image reflash exact either. I was messing with that the other day when I replaced the CMOS battery. Out of curiosity I'd saved a recovery image, removed and replaced the battery, and also jumped the clear-CMOS pins with a paperclip. The recovery image was saved to a SSD, but when I tried to reflash it the BIOS routine reported a corrupted image. Did the same thing but saved to a mechanical drive, which the BIOS then used and restored. Also noticed it wasn't a fully functional restore. I've an extra advanced BIOS settings screen only accessible through a hotkey. Neither were all the settings I'd changed to a user-set condition restored in both regular or the advanced screen. They had reverted to back to their defaults regardless the CMOS image. Oh, well. I looked, I saw, but I'll probably never mess with it again. I only flashed mine, the AMD board once, in order to get a BIOS "patch" to max it out both for fastest quadcore it was rated for, and also available from Ebay pulls for nickel-dime change. The Intel board, similarly to get to its fastest rated quadcore, there wasn't need of a flash, that's never otherwise been touched since its purchase date long ago. The AMD board's result with that replacement, a 95-watt draw quadcore was 150F MB chip sensor temps when stressed. (MPU itself runs relatively cool or for the most acceptable for an AMD.) I decided to underclock it this year to a bare minimum necessary to get done what I do, being a multiplier setting for 1600MHz on a 2200 rated chip. And I still can't touch anything newer for either of those motherboards, both going on ten-yrs-old, for dollar cost averaging myself into a new AMD3+ socket MB. Things don't start clicking for me until I look at octal Vishnu cores for about $100 retail packaged on Ebay. Everything else, these newer quads, holding respectable resale value for pulls, are a waste of my money -- bang for the MHz buck -- compared to what I paid for my quad pulls, (under $30 ea.), two or three years ago. (The MBs, I've owned long enough to have changed from original retail purchase single core CPUs, to dually upgrades, and now the present quads.) Pretty sad old story when the best I can come up with for an excuse to upgrade is roughly $200 for 8 or 16G memory, a MB, and a 95-watt Vishnu eight core. And possibly iffy on a newer higher-watter PS than my 400-watt Rosewill unit;- those Vishnu cores go ambient at 65-watts but will go upwards to 265-watts, cooking with all eight burners stressed to their max. |
#12
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Recovering UEFI boot entries after clear CMOS
Flasherly
Wed, 26 Apr 2017 13:13:22 GMT in alt.comp.hardware.pc-homebuilt, wrote: Neither is a CMOS image reflash exact either. I was messing with that the other day when I replaced the CMOS battery. That depends what you mean by cmos image reflash. CMOS contains data. Not code. You don't reflash it... Out of curiosity I'd saved a recovery image, removed and replaced the battery, and also jumped the clear-CMOS pins with a paperclip. The recovery image was saved to a SSD, but when I tried to reflash it the BIOS routine reported a corrupted image. Did the same thing but saved to a mechanical drive, which the BIOS then used and restored. It sounds to me like you backed up the BIOS firmware...CMOS settings typically are not backed up along with the firmware... Despite the fact cmos backup/restore/erase apps already exist, I wrote one myself. You can find it he http://bughunter.it-mate.co.uk/core/cmoscon1.zip It also allows you to view the cmos contents as they are inside the chip. If you wanted to do such a thing. Keep in mind though, this program doesn't touch your bios/uefi firmware, just the cmos configuration data. I did submit it to zdnet back in the day, and won four out of five possible stars for it. One star deducted due to documentation. Also noticed it wasn't a fully functional restore. I've an extra advanced BIOS settings screen only accessible through a hotkey. Erm. was this a user changable setting in cmos setup? If so, it didn't save your customized settings. The firmwares typically have a checksum of sorts, so if it didn't complain, it probably restored fine. Neither were all the settings I'd changed to a user-set condition restored in both regular or the advanced screen. They had reverted to back to their defaults regardless the CMOS image. They weren't backed up. And, it's quite normal when reflashing the bios that the cmos data is restored to defaults. Oh, well. I looked, I saw, but I'll probably never mess with it again. I only flashed mine, the AMD board once, in order to get a BIOS "patch" to max it out both for fastest quadcore it was rated for, and also available from Ebay pulls for nickel-dime change. The Intel board, similarly to get to its fastest rated quadcore, there wasn't need of a flash, that's never otherwise been touched since its purchase date long ago. Unless you have a specific reason to reflash the system BIOS, you typically don't touch it. And I still can't touch anything newer for either of those motherboards, both going on ten-yrs-old, for dollar cost averaging myself into a new AMD3+ socket MB. Things don't start clicking for me until I look at octal Vishnu cores for about $100 retail packaged on Ebay. Everything else, these newer quads, holding respectable resale value for pulls, are a waste of my money -- bang for the MHz buck -- compared to what I paid for my quad pulls, (under $30 ea.), two or three years ago. (The MBs, I've owned long enough to have changed from original retail purchase single core CPUs, to dually upgrades, and now the present quads.) The machine I'm writing this post on is actually a dual cpu system. Not dual core, it actually has two independent cpus under the hood. Mated, running in SMP mode. It's ancient technology by todays standards, but, it still does mostly what I ask of it. I've got so much stuff on it, migrating to another daily box will be a chore. Happily though, I spent $80 the other day on another external HD; WD passport. 2tb! USB 3. It flies! I was pulling average 90mb/s on my laptop with usb 3 ports. And just shy of 22-23mb/s on my usb 2 mainboard tower beside me. Now, I have a complete backup of all of my machines and I can access the files without any proprietary software. I have two other WD external drives, but, they have power supplies and won't fit in your pocket. This one will, and, it has no external power supply. I'm very happy with it. It's near full capacity now though, so I'm going to buy some more of them. Pretty sad old story when the best I can come up with for an excuse to upgrade is roughly $200 for 8 or 16G memory, a MB, and a 95-watt Vishnu eight core. And possibly iffy on a newer higher-watter PS than my 400-watt Rosewill unit;- those Vishnu cores go ambient at 65-watts but will go upwards to 265-watts, cooking with all eight burners stressed to their max. -- I would like to apologize for not having offended you yet. Please be patient. I will get to you shortly. |
#13
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Recovering UEFI boot entries after clear CMOS
On Thu, 27 Apr 2017 07:02:07 -0000 (UTC), Diesel
wrote: Neither is a CMOS image reflash exact either. I was messing with that the other day when I replaced the CMOS battery. That depends what you mean by cmos image reflash. CMOS contains data. Not code. You don't reflash it... This MB BIOS -- Gigabyte m61pme-s2 ( Phenom X4 9550) has a reflash for itself as built-in BIOS menu option. It writes an image of itself to a BIOS-ID'd drive and then you use that. So, yea - it's a reflash at that point: you can tell by how slow it is, eg same same as a regular BIOS overwrite or near about for EPROM speed. I'd have to do a check-point on that, whether backed up BIOS firmware/CMOS settings...to compa a) size of manufacturer provided MB BIOS update revision file (it seemed to me a smaller rewrite), b) points of CMOS settings I'd changed and how if any make it through by rewriting with a created file. As I said, I don't like it because when I first wrote one, to a SSD, it errored out on me first time up with "corrupted" returned;- not good for playing with fire. Despite the fact cmos backup/restore/erase apps already exist, I wrote one myself. You can find it he http://bughunter.it-mate.co.uk/core/cmoscon1.zip It also allows you to view the cmos contents as they are inside the chip. If you wanted to do such a thing. Keep in mind though, this program doesn't touch your bios/uefi firmware, just the cmos configuration data. I did submit it to zdnet back in the day, and won four out of five possible stars for it. One star deducted due to documentation. Cool. Sure I've seen similar on MB sites, in their utilities sections;- perhaps not as featured with a view-in or preview. Also noticed it wasn't a fully functional restore. I've an extra advanced BIOS settings screen only accessible through a hotkey. Erm. was this a user changable setting in cmos setup? If so, it didn't save your customized settings. The firmwares typically have a checksum of sorts, so if it didn't complain, it probably restored fine. Not sure. One time (electrical brown/black out) came back to find the boot/BIOS checksum faulted out to restore defaults. Happened to find a spare replacement battery, and shorted the clear CMOS, did the write/rewrite routine out of curiosity. No, it didn't restore to firmware/CMOS settings I'd selected, least not all -- things like disabling LAN/soundcard, etc., were defaulted back to on. Academic...super simple budget AMD2 Gigabyte BIOS and easy enough to memorize how I need it. Here's the PDF manual (on the boot menu options): " Function Keys: DEL: BIOS Setup/Q-Flash Press the Delete key to enter BIOS Setup or to access the Q-Flash " utility in BIOS Setup. Only thing I haven't tried is a pointing that BIOS utility/routine to a manufacturer-provided BIOS revision update file. They weren't backed up. And, it's quite normal when reflashing the bios that the cmos data is restored to defaults. First I seen such on a BIOS, a BIOS routine to write itself/CMOS to identified/detected HD/storage medium -- so I well could be imagining and expecting too much from newer features. Unless you have a specific reason to reflash the system BIOS, you typically don't touch it. Amen there. (I don't that much of an excuse to break it to justify that Vishnu 8-core.) The machine I'm writing this post on is actually a dual cpu system. Not dual core, it actually has two independent cpus under the hood. Mated, running in SMP mode. It's ancient technology by todays standards, but, it still does mostly what I ask of it. I've got so much stuff on it, migrating to another daily box will be a chore. Cool. Intel Xeons, I'll hazard. That's no shineola, a migration. I'm ashamed to say how old and many MBs I've been through, transplanting my primary OS binary image (three generations or images, actually). All those tweaks are significant hair-pulling to start from scratch and attempt to duplicate. Happily though, I spent $80 the other day on another external HD; WD passport. 2tb! USB 3. It flies! I was pulling average 90mb/s on my laptop with usb 3 ports. And just shy of 22-23mb/s on my usb 2 mainboard tower beside me. Now, I have a complete backup of all of my machines and I can access the files without any proprietary software. I have two other WD external drives, but, they have power supplies and won't fit in your pocket. This one will, and, it has no external power supply. I'm very happy with it. It's near full capacity now though, so I'm going to buy some more of them. I use docking stations. Went whole-hog w/ an Anchor (brandname), very popular on Amazon ratings -- a USB3 docking station, requiring I send out for USB3 PCI boards to update my USB2 MBs. Total friggin' disaster: The Anchor gave it up, killed itself within a week or two of new. Happened to notice Anchor polling themselves on Amazon for positive reviews a few weeks ago. Told them it was bad-tasting trashed and they sent me a PDF for shipping out on a new return unit. So bad tasting I didn't even bother. I'll just remember them. I've been getting docking stations, several even free (w/ related purchases), for ages from NewEgg, and not one of them crapped on me. Pretty sad old story when the best I can come up with for an excuse to upgrade is roughly $200 for 8 or 16G memory, a MB, and a 95-watt Vishnu eight core. And possibly iffy on a newer higher-watter PS than my 400-watt Rosewill unit;- those Vishnu cores go ambient at 65-watts but will go upwards to 265-watts, cooking with all eight burners stressed to their max. It would have to be initially for an entertainment center, relatively easy to tweak in for sound processing viz a mixer into a two amplifier approximating "stereo bi-amping." Even though it already sounds great with the Phenom X4 9550. To get real and serious it would involve running virtual machines, or significant *nix background learning to catch up on. Slated for when that day comes: When giving Windows 10 the slip becomes ... an inevitability. |
#14
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Recovering UEFI boot entries after clear CMOS
Flasherly
Thu, 27 Apr 2017 08:18:28 GMT in alt.comp.hardware.pc-homebuilt, wrote: On Thu, 27 Apr 2017 07:02:07 -0000 (UTC), Diesel wrote: Neither is a CMOS image reflash exact either. I was messing with that the other day when I replaced the CMOS battery. That depends what you mean by cmos image reflash. CMOS contains data. Not code. You don't reflash it... This MB BIOS -- Gigabyte m61pme-s2 ( Phenom X4 9550) has a reflash for itself as built-in BIOS menu option. It writes an image of itself to a BIOS-ID'd drive and then you use that. So, yea - it's a reflash at that point: you can tell by how slow it is, eg same same as a regular BIOS overwrite or near about for EPROM speed. As I said, it doesn't backup your cmos settings into the flash. cmos is data, not executable code. I'd have to do a check-point on that, whether backed up BIOS firmware/CMOS settings...to compa a) size of manufacturer provided MB BIOS update revision file (it seemed to me a smaller rewrite), b) points of CMOS settings I'd changed and how if any make it through by rewriting with a created file. As I said, I don't like it because when I first wrote one, to a SSD, it errored out on me first time up with "corrupted" returned;- not good for playing with fire. Feel free to do so. You'll find that your 'custom settings' are not preserved in the image. Although the CMOS isn't a seperate actual chip anymore, it's contents are not routinely backed up along with the bios firmware. No. Cool. Sure I've seen similar on MB sites, in their utilities sections;- perhaps not as featured with a view-in or preview. It just sticks with the semi official AT standard at the time it was written. So, in that sense, it's generic and not motherboard specific. Not sure. One time (electrical brown/black out) came back to find the boot/BIOS checksum faulted out to restore defaults. Happened to find a spare replacement battery, and shorted the clear CMOS, The CMOS isn't the BIOS. Two different creatures, despite them living on the same piece of silicon... The machine I'm writing this post on is actually a dual cpu system. Not dual core, it actually has two independent cpus under the hood. Mated, running in SMP mode. It's ancient technology by todays standards, but, it still does mostly what I ask of it. I've got so much stuff on it, migrating to another daily box will be a chore. Cool. Intel Xeons, I'll hazard. That's no shineola, a migration. I'm ashamed to say how old and many MBs I've been through, transplanting my primary OS binary image (three generations or images, actually). All those tweaks are significant hair-pulling to start from scratch and attempt to duplicate. Xeons? No, those were a bit too pricey for what I was planning on using this machine for when I built it. They are p3/800mhz, mated processors. Running on a tyan tiger 230 mainboard. Tweaks alone are a pain, reinstalling various software that's not 'portable' in nature is another nightmare, entirely. Granted, I don't actually have to do the reinstall route, I know how to put this copy of Windows XP on another mainboard and adjust the registry prior to booting for the first time on the new board so it doesn't go ape **** on me, but, it's still a pita. I use docking stations. Went whole-hog w/ an Anchor (brandname), very popular on Amazon ratings -- a USB3 docking station, requiring I send out for USB3 PCI boards to update my USB2 MBs. Total friggin' disaster: The Anchor gave it up, killed itself within a week or two of new. Happened to notice Anchor polling themselves on Amazon for positive reviews a few weeks ago. Told them it was bad-tasting trashed and they sent me a PDF for shipping out on a new return unit. So bad tasting I didn't even bother. I'll just remember them. I've been getting docking stations, several even free (w/ related purchases), for ages from NewEgg, and not one of them crapped on me. I would have bought the drive from newegg, but, for the first time (for me) Newegg couldn't beat the local Walmart (yea, the walmart) on price. Nowhere near it for the same drive, infact. I price shopped before I took the plunge. Not only did I walk out the door with the drive in hand, I paid $30 or so less for it, and didn't have to wait for it to arrive on my doorstep. So, in the event the drive was DOA when I got it, I could drive right back and exchange it. Vs mailing it back to newegg. I really like newegg too, I've done business with them for years. Fantastic return policy, but, sometimes, when I want something, I have a need for it then and really don't like the idea of having to wait for it. It had been bugging me for awhile to get the data backed up on Slimer; it has a pile of things important to me and others. Now, I can relax a bit. It's all backed up. Incidently, my XP box can't use the new drive I bought. So, I had the joy of copying the folders/files I wanted over to Slimer and then having Slimer copy them over to the external. -- I would like to apologize for not having offended you yet. Please be patient. I will get to you shortly. |
#15
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Recovering UEFI boot entries after clear CMOS
On Thu, 27 Apr 2017 21:37:48 -0000 (UTC), Diesel
wrote: I would have bought the drive from newegg, but, for the first time (for me) Newegg couldn't beat the local Walmart (yea, the walmart) on price. Nowhere near it for the same drive, infact. I price shopped before I took the plunge. Not only did I walk out the door with the drive in hand, I paid $30 or so less for it, and didn't have to wait for it to arrive on my doorstep. So, in the event the drive was DOA when I got it, I could drive right back and exchange it. Vs mailing it back to newegg. I really like newegg too, I've done business with them for years. Fantastic return policy, but, sometimes, when I want something, I have a need for it then and really don't like the idea of having to wait for it. It had been bugging me for awhile to get the data backed up on Slimer; it has a pile of things important to me and others. Now, I can relax a bit. It's all backed up. Incidently, my XP box can't use the new drive I bought. So, I had the joy of copying the folders/files I wanted over to Slimer and then having Slimer copy them over to the external. That's one well made MB, the tyan tiger 230, to have held up so long. Wasn't until these Gigabytes that I thought I had something really unusually well built to last, but your Tyan has twice the age of mine. Two or three of my hard drive docking stations also date back to about a 1G limit. Bought most of my drives just before the "big storm" that hit the Pacific Rim facilities, when prices went up near enough to where they are now. 2G drives would go on sale for $49 during the year before the storm. Be sweet, though, to switch over to a small stack of SSD drives. Around $250 1T SSD averages, Sandisk (WD), Crucial, Mushkin, OCZ ($350 for a premier Samsung EVO). Cut that in half and suspect I'd get gamey about consolidating everything program, data and text related (outside of Audio/Visual). Even with a sense of containment well enough to be called a core or essential collection. It's difficult to say that, in a decade or two, picking up either a HDD or SSD, one holding archival material and having sat on a shelf 3 or 5 years -- whether in fact the SSD will be of magnitudes greater certitude, over a HDD, for any likelihood of faulting/failure. I'll probably give it try when that day comes. |
#16
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Recovering UEFI boot entries after clear CMOS
Flasherly
Fri, 28 Apr 2017 00:57:33 GMT in alt.comp.hardware.pc-homebuilt, wrote: That's one well made MB, the tyan tiger 230, to have held up so long. Wasn't until these Gigabytes that I thought I had something really unusually well built to last, but your Tyan has twice the age of mine. Heh. Thanks. It's been a very good machine. It used to have 1gb of ram on it, but, due to a failure with a ram stick, it literally toasted the circuitry powering that slot. As in, burnt the trace in two on the mainboard. She's still running though. On three out of four sticks. [g] Slight reduction in available system memory as a result, but, I really can't complain considering the age of this particular machine. I've gotten my monies worth out of it and then some. I originally built it for audio/video encoding work. At the time, it rocked the socks off near anything else out there for the time period. it's obviously showing it's age these days though. It's the oldest and obviously, slowest box I've got still running. But, still running it is. -- I would like to apologize for not having offended you yet. Please be patient. I will get to you shortly. |
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