Jump to content
Search In
  • More options...
Find results that contain...
Find results in...

BCLK dropping with failed OC attempts

A1Mike_W
 Share

I've got a gigabyte z370 Aorus ultra gaming mobo with an i5 9600k.

 

The BCLK for my system is completely whack. When I first assembled it, the system was at 100.2 BCLK which is within margin of error and not an issue. I've tried overclocking the BCLK but every failed attempt drops the stable BCLK. At this point if I set BCLK to the stock 100 i'll get 99.6 actual, and this drops with every unsuccessful OC.

I haven't been playing around with extreme voltage and all of my temps are in check. If I set BCLK past 100.25 and try to boot, the system turns off immediately and will keep turning off the moment it starts to boot. I used to be able to boot in with BCLK set to 102.7 but with failed OC attempts (not increasing voltage, only speed) that value dropped down to 100.25. After a few failed cycles it'll load in BIOS @ whatever the BCLK was set to but vcore will also shoot up to 1.45v-1.5v from stock (or whatever I actually had it set to). I don't let it load windows at that voltage just because it'll likely fry my chip.

 

The BCLK bug appears despite what speed I set my memory and CPU to. I can underclock both while overclocking the BCLK and the same thing happens no matter if I'm at 4.9ghz on my CPU or if I'm at 3.6ghz. My BCLK is being picky for some reason and something I'm doing is wearing it down to the point where it's unable to stick to the stock 100mhz setting anymore, but I have no clue what it could be as I've never had this problem before.


Any idea what it could be?

Link to comment
Share on other sites

Link to post
Share on other sites

Why are you touching BCLK if you have a K CPU and a Z motherboard.................

NEW PC build: Blank Heaven   minimalist white and black PC     Old S340 build log "White Heaven"        The "LIGHTCANON" flashlight build log        Project AntiRoll (prototype)        Custom speaker project

Spoiler

Ryzen 3950X | AMD Vega Frontier Edition | ASUS X570 Pro WS | Corsair Vengeance LPX 64GB | NZXT H500 | Seasonic Prime Fanless TX-700 | Custom loop | Coolermaster SK630 White | Logitech MX Master 2S | Samsung 980 Pro 1TB + 970 Pro 512GB | Samsung 58" 4k TV | Scarlett 2i4 | 2x AT2020

 

Link to comment
Share on other sites

Link to post
Share on other sites

why are you doing a BLCK OC when you can just up the CPU multiple and then OC the ram separate?

BLCK wil OC everything in the system making it hard to pin point issues unless you know what you are doing.

 

If you want to continue using BLCK OC. Reset to optimized default and set ram to 2133 then do your OC. the Ram will increase with the BLCK OC. probably need to set the you voltage manually tho

Link to comment
Share on other sites

Link to post
Share on other sites

7 minutes ago, Enderman said:

Why are you touching BCLK if you have a K CPU and a Z motherboard.................

6 minutes ago, narrdarr said:

why are you doing a BLCK OC when you can just up the CPU multiple and then OC the ram separate?

It helps me see just how far I can push the CPU and RAM speeds. Going at 100mhz steps isn't optimal. Imagine overclocking your GPU but you could only go 100mhz either way.
 

6 minutes ago, narrdarr said:

BLCK wil OC everything in the system making it hard to pin point issues unless you know what you are doing.

I'm p sure on lga 1151 cpu's it only affects CPU and RAM speeds. When fine-tuning my CPU overclock I'll underclock RAM by however much the BCLK would OC it, etc etc.
 

6 minutes ago, narrdarr said:

If you want to continue using BLCK OC. Reset to optimized default and set ram to 2133 then do your OC. the Ram will increase with the BLCK OC. probably need to set the you voltage manually tho

Resetting to optimised defaults didn't fix the problem I'm having. My BCLK refuses to hit 100mhz and setting it anything past 100.25 (which wouldnt even make up for the 0.4 drop) makes the system power off before it boots. Voltages are set to stock (except for vcore), and increasing them does not help with stability.

Link to comment
Share on other sites

Link to post
Share on other sites

Just now, A1Mike_W said:

It helps me see just how far I can push the CPU and RAM speeds. Going at 100mhz steps isn't optimal. Imagine overclocking your GPU but you could only go 100mhz either way.

The extra 0.3 fps that an extra 50Mhz overclock will make is not possible to detect with a human brain.

Do the regular 100Mhz increments.

NEW PC build: Blank Heaven   minimalist white and black PC     Old S340 build log "White Heaven"        The "LIGHTCANON" flashlight build log        Project AntiRoll (prototype)        Custom speaker project

Spoiler

Ryzen 3950X | AMD Vega Frontier Edition | ASUS X570 Pro WS | Corsair Vengeance LPX 64GB | NZXT H500 | Seasonic Prime Fanless TX-700 | Custom loop | Coolermaster SK630 White | Logitech MX Master 2S | Samsung 980 Pro 1TB + 970 Pro 512GB | Samsung 58" 4k TV | Scarlett 2i4 | 2x AT2020

 

Link to comment
Share on other sites

Link to post
Share on other sites

1 minute ago, Enderman said:

The extra 0.3 fps that an extra 50Mhz overclock will make is not possible to detect with a human brain.

Do the regular 100Mhz increments.

I'm not doing it for the performance ? I just like playing with numbers. It physically bothers me that I'm now unable to even reach stock speeds now. Besides, it might indicate a bigger problem which is why I want to get to the bottom of it.

Link to comment
Share on other sites

Link to post
Share on other sites

1 minute ago, A1Mike_W said:

I'm not doing it for the performance ? I just like playing with numbers. It physically bothers me that I'm now unable to even reach stock speeds now. Besides, it might indicate a bigger problem which is why I want to get to the bottom of it.

resetting to optimzed defaults should have fixed it, or try removing your motherboard battery to clear the cmos.

NEW PC build: Blank Heaven   minimalist white and black PC     Old S340 build log "White Heaven"        The "LIGHTCANON" flashlight build log        Project AntiRoll (prototype)        Custom speaker project

Spoiler

Ryzen 3950X | AMD Vega Frontier Edition | ASUS X570 Pro WS | Corsair Vengeance LPX 64GB | NZXT H500 | Seasonic Prime Fanless TX-700 | Custom loop | Coolermaster SK630 White | Logitech MX Master 2S | Samsung 980 Pro 1TB + 970 Pro 512GB | Samsung 58" 4k TV | Scarlett 2i4 | 2x AT2020

 

Link to comment
Share on other sites

Link to post
Share on other sites

7 minutes ago, A1Mike_W said:

.

it's not a bug if u bricked your motherboard, which bclk overclocking can do, you can either reset cmos or flash to a newer bios at this point.

 

10 minutes ago, A1Mike_W said:

It helps me see just how far I can push the CPU and RAM speeds. Going at 100mhz steps isn't optimal. Imagine overclocking your GPU but you could only go 100mhz either way.
 

I'm p sure on lga 1151 cpu's it only affects CPU and RAM speeds. When fine-tuning my CPU overclock I'll underclock RAM by however much the BCLK would OC it, etc etc.
 

Resetting to optimised defaults didn't fix the problem I'm having. My BCLK refuses to hit 100mhz and setting it anything past 100.25 (which wouldnt even make up for the 0.4 drop) makes the system power off before it boots. Voltages are set to stock (except for vcore), and increasing them does not help with stability.

bclk affects cache, cpu and ram, 100mhz is plenty especially when there are literally tables on what voltage/speed to start with, trying to oc the bclk and then potentially bricking your mobo then blaming said mobo is just lazy and barbaric. 

5950x 1.33v 5.05 4.5 88C 195w ll R20 12k ll drp4 ll x570 dark hero ll gskill 4x8gb 3666 14-14-14-32-320-24-2T (zen trfc)  1.45v 45C 1.15v soc ll evga non-3090 tie ftw3 1905 0.8v 65C 270w (double fps of 1080ti) ll samsung 970 500gb nvme os ll sandisk 4tb ssd ll all nf12/14 fans ll tt gt10 case ll evga g2 1300w ll w10 pro ll 34GN850B ll x27 ll PA272w

 

9900k 1.36v 5.1avx 4.9ring 85C 195w (daily) 1.02v 4.3ghz 80w 50C R20 temps score=5500 ll D15 ll Z390 taichi ult 1.60 bios ll gskill 4x8gb 14-14-14-30-280-20 ddr3666  bdie 1.45v 45C 1.22sa/1.18 io  ll EVGA non-30 tie XC 1830//7600 0.85v 210w ll  8x nf12/14 fans 2x samsung 860 evo 500gb raid 0 ll 500gb nvme 970 evo ll Corsair graphite 780T ll EVGA P2 1200w ll Windows 10 Pro ll NEC PA242w (movie, work mon dying) 1080p 60hzll Predator X27 4k144 hdr (using at 4:4:4 98 fan is dying)

 

 

Link to comment
Share on other sites

Link to post
Share on other sites

54 minutes ago, Enderman said:

resetting to optimzed defaults should have fixed it, or try removing your motherboard battery to clear the cmos.

48 minutes ago, xg32 said:

it's not a bug if u bricked your motherboard, which bclk overclocking can do, you can either reset cmos or flash to a newer bios at this point.

Clearing cmos and bios updates haven't fixed anything unfortunately.

49 minutes ago, xg32 said:

trying to oc the bclk and then potentially bricking your mobo then blaming said mobo is just lazy and barbaric. 

I'm not blaming any part in my system. I'm not trying to get a refund or a replacement, and I'm well aware my actions are likely the cause of the problems I'm seeing. I just wanted to know where I went wrong so I could avoid it in the future or better yet fix it. 

 

I haven't set unsafe voltages anywhere, my temps were in check, and I was under the impression that setting the clock speed of anything too high would be very unlikely to damage or brick it. Is it still possible that I have damaged the motherboard simply by setting a speed too high?

Link to comment
Share on other sites

Link to post
Share on other sites

2 minutes ago, A1Mike_W said:

Clearing cmos and bios updates haven't fixed anything unfortunately.

I'm not blaming any part in my system. I'm not trying to get a refund or a replacement, and I'm well aware my actions are likely the cause of the problems I'm seeing. I just wanted to know where I went wrong so I could avoid it in the future or better yet fix it. 

 

I haven't set unsafe voltages anywhere, my temps were in check, and I was under the impression that setting the clock speed of anything too high would be very unlikely to damage or brick it. Is it still possible that I have damaged the motherboard simply by setting a speed too high?

at this point i'd just try to change the multiplier and see what it clocks to, whatever performance you lost is ~1% if it's stable. The lowest i've heard of a brick was 104, i think it was a sandy bridge, so 103 and brick is indeed weird but not impossible.

5950x 1.33v 5.05 4.5 88C 195w ll R20 12k ll drp4 ll x570 dark hero ll gskill 4x8gb 3666 14-14-14-32-320-24-2T (zen trfc)  1.45v 45C 1.15v soc ll evga non-3090 tie ftw3 1905 0.8v 65C 270w (double fps of 1080ti) ll samsung 970 500gb nvme os ll sandisk 4tb ssd ll all nf12/14 fans ll tt gt10 case ll evga g2 1300w ll w10 pro ll 34GN850B ll x27 ll PA272w

 

9900k 1.36v 5.1avx 4.9ring 85C 195w (daily) 1.02v 4.3ghz 80w 50C R20 temps score=5500 ll D15 ll Z390 taichi ult 1.60 bios ll gskill 4x8gb 14-14-14-30-280-20 ddr3666  bdie 1.45v 45C 1.22sa/1.18 io  ll EVGA non-30 tie XC 1830//7600 0.85v 210w ll  8x nf12/14 fans 2x samsung 860 evo 500gb raid 0 ll 500gb nvme 970 evo ll Corsair graphite 780T ll EVGA P2 1200w ll Windows 10 Pro ll NEC PA242w (movie, work mon dying) 1080p 60hzll Predator X27 4k144 hdr (using at 4:4:4 98 fan is dying)

 

 

Link to comment
Share on other sites

Link to post
Share on other sites

1 minute ago, xg32 said:

at this point i'd just try to change the multiplier and see what it clocks to, whatever performance you lost is ~1% if it's stable. The lowest i've heard of a brick was 104, i think it was a sandy bridge, so 103 and brick is indeed weird but not impossible.

No matter the multiplier set, the BCLK is unstable past 100.25. It just irks me that out of the box it could hold 100mhz but now setting it to 100mhz only gets 99.6. I know the performance loss is negligible but my OCD really doesn't agree with it. 

it's not completely bricked and still works fine with overclocking the rest of the system, I've just never had BCLK behave like this so I just wanted to use it as a learning point really. Thanks for all your advice ☺️

Link to comment
Share on other sites

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share


×